Mathematics High School

Please helppppppppppppppppp

Please Helppppppppppppppppp

Answers

Answer 1

Answer:

Step-by-step explanation:

1)

a/c =b/d  where a=27 c=30 b=x d=18

27/30 = x/18

27*18/30=x

16.2 = x

2)

a/c =b/d  where a=2x-5 c=x+11 b=16 d=14

2x-5 / x + 11  = 16 / 14

14(2x-5) = 16(x+11)

28x - 70 = 16x + 176

12x = 246

x = 20.5

3)

6+15 / 7+x  = 7 /6

6(6+15) = 7(7+x)

6*21 = 49 +7x

126 = 49 +7x

77 = 7x

11 = x

4)

3*[(x-6)+3]=[tex]6^{2}[/tex]

3(x-3) = 36

3x-9 = 36

3x = 45

x = 15

Related Questions

Please help me ASAP!!

Answers

Answer:

n = 6[tex]\sqrt{3}[/tex]

Step-by-step explanation:

you can create this proportion:

18/n = n/6

cross-multiply:

n² = 108

n = [tex]\sqrt{108}[/tex]

[tex]\sqrt{108}[/tex] = [tex]\sqrt{4}[/tex]·[tex]\sqrt{9}[/tex]·[tex]\sqrt{3}[/tex] = 2·3·[tex]\sqrt{3}[/tex] or 6[tex]\sqrt{3}[/tex]

11 to the power of negative 4 / 11 to the power to 8

Answers

Answer:

11^-12 or 11 to the power or negative twelve

Step-by-step explanation:

11^-4  / 11 ^ 8

according to the laws of indices, when dealing with powers, division is subtraction. so:

-4 - 8 = -12

answer = 11^ -12

Answer:

Hello There!

Your answer is:

2.2This is rounded, since you get this: 2.2094836e-42

If this helps, please give me a thanks!!

- abakugosimp


Suzanne pours 260 mL of milk into her glass.
Which expression shows how Suzanne could find this amount of milk in liters?

Answers

Answer:

1 L = 1000 mL

Step-by-step explanation:

B. 260 × 100

Which of the following are binomiola? Check oll that apply
A. x + 2
B. x+3/x
C-x^10
D. x^7
E x^2 + 18
F.x

Answers

a Binomial is 2 terms

so the solution is

A

B

E

Answer:

A, B, and E

Step-by-step explanation:

Binomials are equations that consist of two terms.

Jovan spent 2/3 of his savings on a watch. He also spent of 1/5 his savings on a bag. (a) What fraction of his savings was left? (b) How much did he spend on both the items? Tell me the steps to get the answer please, Thanks... Have A Good Day/ Night.. :D

Answers

Answer:

2/15

13/15

Step-by-step explanation:

Amount spent = sum of amount spent on watch and bag

[tex]\frac{2}{3} + \frac{1}{5}[/tex]

[tex]\frac{10 + 3}{15}[/tex]

= [tex]\frac{13}{15}[/tex]

Fraction left = 1 - amount spent

1 - 13/15

2/15

Find the volume of the cylinder. Either enter an exact answer in terms of T or use 3.14 for T. 6 for height 8 for width ​


nvm I got it it was 384

Answers

Answer:

The volume of the cylinder is equal to 1205.76 cubic units.

Step-by-step explanation:

Given that,

Height of the cylinder, h = 6

Radius of the cylinder, r = 8

We need to find the volume of the cylinder. The formula for the volume of a cylinder is given by :

[tex]V=\pi r^2 h\\\\V=3.14\times 8^2\times 6\\\\V=1205.76\ units^3[/tex]

So, the volume of the cylinder is equal to 1205.76 cubic units.

Help help help help help help help

Answers

Answer:

Negative

Positive

Negative

Positive

Step-by-step explanation:

AnswerNegative ,Positive, Negative, Positive

Step-by-step explanation:

Kayla has 16 cups of trail mix that she wants to give to her friends. She decides to divide it into cup portions. How many portions can she make?

[?] portions

Answers

Answer:

16

Step-by-step explanation:

17 cm
17 cm
8 cm
3 What is the surface area of the triangular
prism shown?
A 1,430 cm?
B 2,360 cm?
35 cm
C 2,480 cm?
D 4,200 cm
I

Answers

D ststjdkgdgk dhdgkdlydky

A teenager can wash 2 tables per minute. Write an expression for how many tables they can wash in m minutes. *

Answers

Answer:

2m = x

x being the number of tables

Step-by-step explanation:

2 tables = 1 minute

x tables = m

(cross multiply)

2m = x

x being the number of tables

NEED HELP ASAP !!

A. x=14; angle measure is 30°
B. x=14; angle measure is 42°
C. x=14; angle measure is 30°
D. x=10; angle measure is 42°​

Answers

Answer:

C

Step-by-step explanation:

i dont really know anything about angles but it looks like the 3x is the exact same angle as 30 degrees on the other side of it

3x=30

x=10

c i believe if you need an explanation lmk

Find the area. Round to the nearest tenth.

Answers

Answer:

YOU DONT KNOW HOW TO ROUND SMH

Step-by-step explanation:

LEARN KID LEARN CMON ITS EASY

Which of the following is a vertex of the figure shown below after a reflection in the y axis?

Answers

Answer:

A.

Step-by-step explanation:

( 5,0)

When x axises is a reflection in the y axis

In a popular online role playing game, players can create detailed designs for their character's "costumes," or appearance. Boubacar sets up a website where players can buy and sell these costumes online. Information about the number of people who visited the website and the number of costumes purchased in a single day is listed below.
120 visitors purchased no costume.
235 visitors purchased exactly one costume.
3 visitors purchased more than one costume.

Based on these results, express the probability that the next person will purchase no costume as a percent to the nearest whole number.

Answers

Answer:

Step-by-step explanation:

p[p

Answer: 34%

Step-by-step explanation:

(Trust me)

Suppose that an individual has a body fat percentage of 13.6% and weighs 189 pounds. How many pounds of his weight is made up of fat? Round your answer to the nearest tenth.






HELPPPPPP!!!!!!!!!!

Answers

Answer:

25.7 lbs

Step-by-step explanation:

189/100=1.89

1.89*13.6=25.704

25.7 lbs

Answer:

25.7

Step-by-step explanation:

You need to do 13.6 percent of 189 which is 25.704 without rounding

Round that to the nearest tenth and you have 25.7

Hope I helped :)

In the diagram, mZJ = 39.59. Find mJK.
H
K
a. MJK 101°
b. JK = 799
C.
JK = 140.5°
JK = 50.5°
d.

Answers

Answer:

a) 101°

Step-by-step explanation:

arc HK = 2(39.59°) = 79.18°

arc JH = 180°

arc JK = 360° - 180° - 79.18° = 100.82°

JK = 101°

The correct answer is option (A) 101°

What is an inscribed angle?

"It is an angle in a circle formed by two chords that have a common end point on the circle."

For given example,

m ∠J = 39.59°

We know, the measure of an inscribed angle in a circle equals half the measure of its intercepted arc.

⇒ m(∠J) = (1/2) × arc KH

⇒ arc KH = 2 × 39.59°

⇒ arc KH = 79.18°

Also, arc HJ = 180°

We know for given figure,

⇒ arc JK + arc KH +arc HJ = 360°

⇒ arc JK + 79.18° + 180° = 360°

⇒ arc JK + 259.18° = 360°

⇒ arc JK = 100.82°

⇒ mJK ≈ 101°

Therefore,  mJK = 101°

The correct answer is option (A) 101°

Learn more about the inscribed angle here:

https://brainly.com/question/15899344

#SPJ2

Can u please help me with this answer ??

Answers

It will take him 10 hours since 200(4)=800 and thus, 2.5(4)=10

Answer:

C) 10 hours

Step-by-step explanation:

(2.5/200)(800) = 10

Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.

Answers

Answer:

In the first one answer is r²

In second one answer is 3

Step-by-step explanation:

Yes it is Algebra with different powers

In first one (6r4+4r) +(__- 2r4 + 3r) = 4r4 + r2 + 7r

Like terms are added:

6r^4- 2r^4 + 4r  + 3r +____ = 4r^4 + r2+ 7r

4r^4+7r +___ = 4r^4 + r^2 + 7r

Therefore ___ = r^2

In second one:

(__ -8x - x^2)-(4x^2 -7 +6x) = -5x^2 +14x +10

Open the brackets

__  -8x - x^2-4x^2 +7 -6x = -5x^2 +14x +10

Add like terms

__ -14x -5x^2  + 7=  -5x^2 +14x +10

Therefore

___ + 7 = 10

___ = 10 -7 = 3

the dot plot shows the number of hours that 40 students studied each week make a statement that describes the overall pattern of the data in the plot. support your statement by describing clusters,gaps and/or peaks

Answers

Answer:

ther is no dot plot

Step-by-step explanation:

In how many ways can 3 red balls , 4 blue balls and
5 white balls be selected from 5 red balls, 5 blue
balls and 7 white balls ?​

Answers

Answer:

1050 ways

Step-by-step explanation:

Total Number of red balls = 5

Total Number of blue balls = 5

Total Number of white balls = 7

Number of red balls selected = 3

Number of blue balls selected = 4

Number of red balls selected = 5

Using the multiplication and combination relation :

nCr * nCr * nCr

Red balls = 5C3

Blue balls = 5C4

White balls = 7C5

Using calculator:

5C3 * 5C4 * 7C5 = 10 * 5 * 21

(10 * 5 * 21) = 1050 ways

Which relationship is always true for the angles x, y, and z of triangle ABC? (4 points)

x + z = y

y + z = x

x + y + z = 180 degrees

x + y + z = 90 degrees

Answers

Answer:

y + z = x

Step-by-step explanation:

PLZ HELPPP

What is the radius of a cylinder that has a volume of 500 fts and that is 10 ft tall?

Answers

Answer:

4ft

Step-by-step explanation:

500=pir^2h

r^2=500/(10*pi)

r=3.989ft

What is the advantage of valence number?​

Answers

Answer:

The presence of many unpaired electrons in the valence shell of an atom enables it to form multiple bonds with other atoms. The paired electrons present in the valence shell do not take participate in the formation of chemical bonds as per the valence bond theory.

2х - 7y = 14
Find the x and y- intercepts then graph them.

Answers

Nehficnwjaoncncjwjfbcbdkd
Medjjf

Find the value of x and y that will make each quadrilateral a parallelogram.​

Answers

Answer:

to solve for x. So, x = 4 and y = 3. COORDINATE GEOMETRY Graph each quadrilateral with the given vertices. Determine

PLS help plssss 30 points plssss and how how u know it’s math plssssss helppppp plsssss

Answers

the answer is 17 because a right angle is 90 and you subtract 73 from it and get 17

Answer:

Complementary angles sum to 90°

x + 73° = 90°x = 90° - 73°x = 17°

HELP PLSSSSSSS
NO LINKS​

Answers

Answer:

Is there anything else to this like a description or a sentence?

Step-by-step explanation:

Sorry I need more than this

Diego predicts that his basketball team has a 23 probability of winning each of their next 7 games. Select two ways Diego could accurately simulate the number of games his team will win.

Answers

Answer:

(c) and (e)

Step-by-step explanation:

Given

[tex]Pr = \frac{2}{3}[/tex]

Required

Which 2 options can be used to simulate the given probability.

The two options are (c) and (e)

The proof is as follows;

Option (c)

We have:

[tex]Rolls = 7[/tex]

A cube has 6 faces. So:

[tex]S = \{1,2,3,4,5,6\}[/tex]

[tex]n(S)=6[/tex]

The probability of getting ones, twos, threes, and fours is:

[tex]Pr = \frac{n(1,2,3,4)}{n(S)}[/tex]

In: [tex]S = \{1,2,3,4,5,6\}[/tex]

[tex]n(1,2,3,4) = 4[/tex]

So:

[tex]Pr = \frac{4}{6}[/tex]

Simplify

[tex]Pr = \frac{2}{3}[/tex]

Option (e)

We have:

[tex]White = 10[/tex]

[tex]Red = 5[/tex]

[tex]Count = 7[/tex]

Record the probability of white.

This is calculated as:

[tex]Pr = \frac{White}{Total}[/tex]

[tex]Pr = \frac{White}{White + Red}[/tex]

[tex]Pr = \frac{10}{10+5}[/tex]

[tex]Pr = \frac{10}{15}[/tex]

Simplify

[tex]Pr = \frac{2}{3}[/tex]

solve for x and y x+y=a;x-y=b

Answers

Answer:

x = a + b - a/ 2

y = - b - a/ 2

Step-by-step explanation:

HELP I HAVE 5 MIN
what is x?

Answers

Answer:

x = 42

Step-by-step explanation:

i hope this helps :)

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A cylinder has a diameter of 14 cm and a volume of 112 pi.What is the height in, centimeters, of the cylinder?(PS I am literally giving 15 points for the correct answer!!!)HELP! :( I need an answer and fast plz A survey of a group of seventh-graders and a group of teachers at a local middle school asked how many siblings they each have. The dot plots below show the results.Based on the shape of the two-dot plots, which statements correctly compare them? Select three choices.The center of the data for students has a value less than that of the center of the data for teachers.The center of the data is to the right of the dot plot for both teachers and students.There is a greater variation in the data for teachers than for students.Both sets of data cluster around 2.The same number of teachers as students were surveyed. Speed is the rate of change of position expressed as _____ traveled per unit of time. A. direction B. meter C. displacement D. distance... Help!!! XII ESPACE CULTURE (These questions regard unite 9 only) review the previous chapters and 10 .)1 Choisissez Select the answer that best completes the statement, according to the text1. En France, on sert les saladesa. comme entre. b. aprs le fromage. c. aprs le plat principal..2. On prend le gotera. le matin. b. laprs-midi. c. le soir.3. On dit Sant!a. avant de manger. b. avant de boire. c. aprs les repas.4. Les Franais adorent manger un plat de fruit de mer qui sappellea. la bouillabaisse. b. le couscous. c. la farcis 5. En France, on sert le plat du fromage comme a. hors duvre b. avant le plat principal c. aprs le plat principal 6. On retrouve des amis au caf pour prendre a. les hors duvre b. les desserts c. les apros7. Le far breton est a. une soupe b. une salade un dessertB. La cuisine franaise. What interesting facts have you encountered while learning about French food and the French eating habit? What similarities with your own culture are there? 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Assuming no other equity transactions occurred during 2020, what should Hahn report at December 31, 2020, as total additional paid-in capital? It takes 14 hours to seal a hardwood floor with varnish. If each coat requires one whole and 3/4ths of an hour to dry, how many coats are applied? Each spinner shown is divided into equalsections. Felix spins each spinner 30 times. Herecords the number of times each section isspun.(8)Red(7)Yellow(5)Blue(10)Green(8)E(3)Based on the results of the first 30 spins, whatis the probability that Felix will spin a green andan F on the next spin?A124BD Not here45 Complete the following sentence.Rainforest homes are typically made of mud. The roofs are usually made of _____ or_____ if the person has a good job. Need help on this please asap. name all of the processes of the rock cycle... and number them by the picture.... no links Why does the moon appear to change its shape as seen from earth? Find the are of the triangle below in square units (The triangle is in the picture, please help! :,)) Help plz, I don't understand plssssss helppppp meeeeeeeee CH4 +2H2S = CS2+ 4H2 If the reaction shifts to the right what are the products?If the reaction shifts to the right, which chemicals decrease in The process?If the reaction shifts to the left what are the products?If the reaction shifts to the left, which chemicals decrease in the process?