Cho tam giác ABC vuông cân tại A
Cạnh đáy BC 5cm, AB 7cm. Tính diện tích

Answers

Answer 1

Answer:

7 × 5 :2 it is the answer ,i love you


Related Questions

What is the first term in the sequence for which d = -2 and a7 = 3?

A. -6
B. 12
C. 15
D. -12

Answers

Answer:

First term is 15

Step-by-step explanation:

Given data:

[tex]a_{7} =3\\d=-2[/tex]

Now,

[tex]a+6d=3.....(1)\\a_{n} =a+(n-1)d\\\\\\From equation (1)\\a+6(-2)=3\\a-12=3\\a=12+3\\a=15[/tex]

Therefore first term a =15

Correct option is (c)

A model train is built at a scale of 1 to 60. If the model train is 10 inches long, how many feet long is the actual train?

Answers

Answer:

Step-by-step explanation:

um yes..!

You have 3 five dollar bills and 4 ten dollar bills in your pocket. If you pull out 2 bills, what is the probability they are both tens?

Answers

Answer: I think its 4%

Step-by-step explanation: 3+4=7 7/2=3.5

Answer:

1/14

Step-by-step explanation:

What is the slope of the line that contains the points (-1,-1) and (3, 15)?
O A.
1
4
B. 4
O C. -
4
D. -4

Answers

Answer:

its b

Step-by-step explanation:

In the figure below, which term best describes point R?

A. Orthocenter
B. Centroid
C. Incenter
D. Circumcenter

Answers

C should be right home

Orthocenter is the best term to describes point R in the triangle UVW.

What is orthocenter?

" Orthocenter is defined as intersecting point of the altitudes of the sides of the acute angle triangle."

According to the given figure,

In triangle UVW,

Ray VR perpendicular to UW

Ray UR perpendicular to VW

Ray WR perpendicular to UV

Altitudes of side  ( UV , VW, and WU) of triangle UVW intersect at

point R.

As per the definition of orthocenter , point R represents orthocenter.

Hence, orthocenter is the best term to describes point R in the triangle UVW.

Learn more about orthocenter here

https://brainly.com/question/19763099

#SPJ2

An object dropped from a height of 500 feet has a height, h(t), in feet after t seconds have elapsed, such that h(t)=500−16t^2. Express t as a function of height h, and find the time to reach a height of 100 feet

Answers

Step-by-step explanation:

the answer is in the above image

Which measure of central tendency best describes the data set below?


{0, 80, 85, 88, 90, 95}

A. the mean, 73
B. the mode, none
C. the range, 95
D. the median, 86.5

Answers

Answer:

The correct answer would be D, the median 86.5. In this set of data most of the values are in the 80's or 90's.

Step-by-step explanation:

d point is the answer

Answer:

D) The median, 86.5

Step-by-step explanation:

Most of the data is clustered in the 80s. Therefore, D is correct.

Which sequence is an example of an arithmetic sequence? A) –8, –4, –2, –1, . . . B) –4, –2, 0, 2, 4, . . . C) –1, –7, –49, –343, . . . D) 2, 4, 8, 16, 32, . . .

i dont have the membership.

Answers

Answer:

Answer- D)2,4,8,16,32, . . .

Answer:

b. -4,-2,0,2,4,...

Step-by-step explanation:

Jenny made $35,000 in taxable income last year suppose the income tax rate is 10% for the first 9000+16% for the amount over 9000 how much money is jenny pay in income tax for last year

Answers

Answer:

for the first 9000 $ tax rate is 10%

so tax = 10% of 9000 = 900

rest of the amount = 35000-9000 =26000

tax rate is 16%

tax on 26000 =  16% of 26000 = 3900

total tax Debra has to pay for last year = 900 + 3900 = $4800

Step-by-step explanation:

Answer:

900+3900=$4800

#CarryOnLearning

Graph the line.
y=3x

Answers

Answer:

desmos(dot)com/calculator/gv8jsoui4w

Step-by-step explanation:

Create a table of appropriate x values e.g. x = 2 and substitute into y=3x which will be y=3*2 meaning y=6 at the point x=2. Repeat with different x values until you have enough points to draw a straight line.


Which expression is equivalent to
^3 sqrt 1/1000 c^9 d^12

Answers

Answer:

[tex] \sqrt[3]{ \frac{1}{1000} {c}^{9} {d}^{12} } \\ = \frac{1}{10} {c}^{3} {d}^{4} [/tex]

Sum of all edges of all shape

Answers

Answer:

Infinient amount buddy. They are infinent amounts of polygons, as a polygon is a shape with more then 3 sides and closed. This means as long as a number is bigger then 3, there will be a shape for it, so infinent sides

Step-by-step explanation:

2 1/3 - (-5) =

what does it equal

Answers

Answer:

7 1/3

Step-by-step explanation:

See image below:)

Help me fast 50 points!!!!!!!!

Answers

Answer:

30

Step-by-step explanation:

There are 14 data points on the plot

The median is the middle value, which is between the 7th and 8th data points

Since it is even, we find the average of the 7th and 8th data points

Add the 7th and 8Th data points values and divide by 2

( 30+30)/2 = 60/2 = 30

The median is 30

Answer:

30

Step-by-step explanation:

Middle numbers are 30 and 30 so you add them and then divide by two:

[tex]\frac{30 + 30}{2}[/tex] = [tex]\frac{60}{2}[/tex]= 30

Please help me with my math question?

Answers

Answer:

150 mL

Step-by-step explanation:

270 - 120 = 150

Hope this helps!

The
Slope
a line that goes
through the points (r, 6 ) and (4,2
is 4 find r​

Answers

R= 5
(2-6). -4
—— = ——-
(4-r). (This has to be -1 for the answer to be 4)
4-5=-1
So r=5

In a triangle, the measure of the first angle is twice the measure of the second angle. The measure of the third angle is 80° more than the measure of the second angle. Use the fact that the sum of the measures of the three angles of a triangle is 180° to find the measure of each angle. what is the measure of the first angle?​

Answers

Answer:

The measure of the first angle is 50°.

Step-by-step explanation:

Let the three angles be a, b, and c.

The measure of the first angle is twice the measure of the second angle. In other words:

[tex]a=2b[/tex]

The measure of the third angle is 80° more than the measure of the second angle. In other words:

[tex]c=b+80[/tex]

And since the interior angles of a triangle must equal 180°:

[tex]a+b+c=180[/tex]

Substitute a and c:

[tex](2b)+b+(b+80)=180[/tex]

Combine like terms:

[tex]4b+80=180[/tex]

Subtract 80 from both sides:

[tex]4b=100[/tex]

And divide both sides by four:

[tex]b=25^\circ[/tex]

So, the measure of the second angle is 25°.

Since the measure of the first is twice the second, the measure of the first angle is 50°.

(And since the measure of the third is 80° than the second, the measure of the third angle is 105°.)

PLEASE HELP ASAP!!! WILL MARK BRAINLIEST !!

Answers

Answer:

CA = LJ

Step-by-step explanation:

The third side

CA = LJ

Answer:

CA=LG is correct answer

What is the perimeter of the trapezoid? In unit

Answers

Answer:

20 units

Step-by-step explanation:

the perimeter = 7+4+4+5 = 20 units

Three relatives will share an inheritance of 196,800 in the ratio of 3 to 7 to 2. How many dollars of the inheritance will each of the relatives receive?

Answers

Answer:

49200

114800

32800

Step-by-step explanation:

196800/12=ans

ans * 3

ans * 7

ans * 2

(Will mark brainlest ) help me to find the value of x or theta (step by step)​

Answers

Answer:

X = 6

Step-by-step explanation:

sin○ = opposite side/hypotenuse

sin 45 = 3 root2/x

1/root2 = 3 root2/x

x = 3 × 2

x = 6

Answer:

x=6 cm

Step-by-step explanation:

take 45 degree as reference angle

using sin rule

sin 45 =opposite/hypotenuse

[tex]\frac{1}{\sqrt{2} } =\frac{3\sqrt{2} }{x}[/tex]

do cross multiplication

[tex]x=\sqrt{2} * 3\sqrt{2}[/tex]

x=6

Researchers at a medical school conducted a study to test the effectiveness of a new drug for lowering cholesterol. The 52 subjects who volunteered for the study were each given a randomly generated number. Subjects with an odd number were given the new drug, while those with an even number were given a placebo. Cholesterol levels before and after the treatment were measured for each subject, and the differences were computed.

This study is an example of ______________ study. The difference in cholesterol level is _____________ the variable. The treatment with drug or placebo is the ____________ variable.

Answers

Answer:

1. An Experimental

2. Dependent

3. Independent

Step-by-step explanation:

Considering the description of how the research was carried out, it can be concluded that This study is an example of AN EXPERIMENTAL study. This because the researcher is trying to study the effectiveness of a new drug for lowering cholesterol

The difference in cholesterol level is the DEPENDENT variable. This is because the difference in cholesterol level is what the researcher wants to determine.

The treatment with a drug or placebo is the INDEPENDENT variable. This is because this is what the researcher manipulates to determine the difference in cholesterol level which is the dependent variable in this experimental study.

What is the image point of (1,-7) after the transformation T-3,-1 degrees R180 degrees?

Answers

Answer:

first hust rotate 180 and next reflect it over x axis.

the given point (-7,3) id in second quadrant but after rotation it will be in fourth quadrant.

afterwards you have to refect that point over x-axis which gives you the image of the points on first quadrant ie. (7,1).

What is the solution to -2(8x - 4) < 2x + 5?

Answers

Answer:

See image below:)

Step-by-step explanation:

Is my answer correct?

Answers

9514 1404 393

Answer:

  yes

Step-by-step explanation:

By the "rule of 72", the amount will be doubled in 72/I years, where I is the annual interest rate in percent. That is, it can be estimated to take 72/4 = 18 years to double the $240 investment to $480. It would take another 18 years to double it again to $960. So, to achieve a balance of $1500 will be expected to take more than 36 years. The only reasonable answer choice is the one you have selected.

__

The exact solution is ...

  log (1500/240)/log(1 +0.04) ≈ 46.72 years ≈ 47 years.

Solve the system of equation y = -2+5
y = x^2 + 3x + 9

Answers

Answer:

9 is y

Step-by-step explanation:

Please help it’s not hard

Answers

Answer:

H

Step-by-step explanation:

y= (1)x-3

Positive gradient, and the y intercept for the graph is -3, F is not the answer, the Y intercept is not -3.

The sky ride at an amusement park spans 2,715 feet. Over the course of the day,
Anna rode the sky ride 7 times. How many feet did she ride?
A. 14,025 feet
B. 15,500 feet
C. 19,005 feet
D. 21,000 feet
Whoever answers this then there gonna get Branliest

Answers

Answer:

C. 19,005 feet

Step-by-step explanation:

[tex] \begin{array}{ccc} \rm 1 \: time \: ride \implies \: 2175 \: feet\\ \rm 7 \: times \: ride \implies 2175 \times 7 = 19005 \: feet\end{array}[/tex]

hence,

our answer is C)

Answer:

Solution given:

1times ride[tex]\rightarrow: [/tex]2715ft

7 times ride[tex]\rightarrow:[/tex]2715*7=19005ft

Option C 15,500 feet

Which is the decimal expansion of the following 1/5

Answers

Answer:

Decimal expansion of 1/5 = 0.2

Can any one help?

Solve the following equations:

Answers

Answer:

2- x=16/3 or 5.3

4- x=8

Step-by-step explanation:

yeah

Other Questions
Point of intersection Question:Mike has $9.85 in dimes and quarters. If there are 58 coins altogether,how many dimes and how many quarters does Mike have? Use the point of intersection to find the answer. Explain how you used a formula to calculate the # of quarters and dimes Determine the list of numbers 14, 18 and 33 can be measured of the sides of a triangle if so clarify the triangle as a cute right or obtuse Question 4 ReviewThis group of explorers were seeking "gold, god and glory":1.Native Americans2Conquistadors3Norseman4French Explain different methods used to prevent salinity? With 600 islands, the largest freshwater lake in Europe is Lake _________ NEED HELP ASAP PLEASEAssume that a three-month CD purchased for $3000 pays simple interest at an annual rate of 10%. How much total interest does it earn?$ ____What is the balance at maturity? ______ 4( x + 2) + 6x in the simplest form Why might a letter-writing campaign get a company to change its business practices? A. The government wants to keep both consumers and companies from burdening the postal system. B. The company could end up spending a lot of money answering all of the letters. O C. The company might fear that the letter-writing campaign will become a boycott if it doesn't respond. O D. Consumers use letter-writing campaigns to get the government to pass favorable legislation. 0.0543 nearest whole number Which of the following industrialist is not matched correctly with his industry?1) Carnegie- steel2) Rockefeller-oil3) Morgan-airplanes A bicycle wheel with radius 26" rotates through an arc that measures 80. What is the length of the arc of the tire that touched the ground? 5.78 inches 11.56 inches 2.88 inches Which list BEST identifies how the arrows should be arranged around the paper leaf in the model to represent the movement of matter and flow of energy during photosynthesis? A. Point into Leaf: sugars, oxygen (02), Point away from leaf: carbon dioxide(CO2), water(H2O) B. Point into Leaf: sugars, sunlight, Point away from leaf: carbon dioxide(CO2), oxygen (02), water(H2O) C. Point into Leaf: water(H2O), sunlight, Point away from leaf: carbon dioxide(CO2), sugars, oxygen (02) D. Point into Leaf: water(H2O), carbon dioxide(CO2) sunlight, Point away from leaf: sugars, oxygen (02 can someone please tell me the answer . describe the processes by which sediments are moved by streams and the flow velocities that are necessary to erode them from the stream bed and keep them suspended in the water Which words best emphasize society's view of the "experts" who claimed to understand women's needs? books, glory A mammal's red blood cells produce the protein hemoglobin, which carries oxygen through the bloodstream. Its hair follicle cells do not produce hemoglobin. Which statement is true about these differences? A) The red blood cells contain different genes than the hair follicle cells, causing the cells to differentiate B) The red blood cells contain DNA, but the hair follicle cells do not C) A red blood cell and hair follicle cell have the same genes, but they are expressed differently D) The hemoglobin is produced from recombinant DNA, which is only found in red blood cells i need help finding the answer with step by step hello i need help with these questions attached. THIS ENGLISH PAPER IS WRITTEN BY A PAPER SERVICE ONLINE.Two wolves is an adventure novel with action in it, and some parts consist of humor. The story also involves a conflict where Ben tries to fight the physical world and childishness. The book begins when Ben Silver arrives home from school and is trying to shoot an animation movie in his bedroom when the police arrive. Immediately after the police leave, Ben's parents come and inform him that they have to leave for a family vacation. Ben and his sister Olive get ready and are in the car, but Ben realizes that something is weird since their family never goes on vacation. Since childhood, Ben wanted to become a detective making his father nicknamed him 'cop.' Ben is a quick thinker and realizes that his parents have done something wrong and are on the run. Ben makes up his mind to find out what had happened so that he can uncover his parents. Ben is depicted as the protagonist in the novel, while his father is the antagonist. This paper compares how the author presents the protagonist and the antagonists through various characters. The two wolves, good and bad, are presented through Ben Silver and Ray, respectively. Ben, being the excellent wolf, has trouble interacting with friends because he is overweight hence has few friends, and the relationship with his parents is complex (Bancks, 12). Ray teases Ben by calling him a boy and a girl, whereas his mother helps him lose weight. Ben is a chubby kid whose only aim in life is to finish his movie and hang out with his friends. A good thing about Ben is that he is a creative child, which helps him escape the reality that is depressing according to him. Ben is in a dilemma between revealing what his parents have done and protecting his family. Ben is also a very protective and responsible character since he takes care of his sister. The good wolf is kind, compassionate, and humble. Ben tried hard to protect his sister from what is going on in the family. Although Ben's father is not kind, Ben learns how to mind his business to avoid getting punished. (Bancks, 24) The antagonist is Ray, who is a skinny man who is serious. The lousy wolf, Ray, has a lot of lies, anger, regrets, and greed. Ray has also done a lot of jobs, including; salesman, ex-mechanic, and motor wrecker. Ben thinks his father is an opportunist to the extent that when someone mistakenly transfers a large sum of money to his account, he moves the money for the owner not to recover it. It seems that Ray learned his criminal activities from his father, who was also a criminal and would hide in his old cabin in case there was a search for him. Ray did not have a good father figure since he did not spend a lot of time with his father. However, Ray wanted to create a good connection with his children, which is impossible since Ben fears his father (Homeyer, 13). In conclusion, Ray has engaged in some criminal acts making it hard for the children because they also have to hide from the police. The whole family is affected by the deeds of Ray is isolated from their everyday life and friends. April, Ben's mother, is aware of her husband's act but hides from the children to protect them and keep the family united. Ben's character makes him realize something is wrong, which is the least of what his father expected. Ray always thought of Ben negatively because of his appearance. The novel ends with Ben torn between his own family because of protecting her sister. Which statement regarding the diagram is true? mMKL+mMLK=mJKM mKML+mMLK=mJKM mMKL+mMLK=180 mJKM+mMLK=180