Answer:
No, 2/3 sqrt(5) k^(11/2)
Step-by-step explanation:
Answer:
yes he simplified correctly
Step-by-step explanation:
got this question right on edg
last one!!
pls help!!
Answer:
1) Slope = 2; y-intercept = 3
2) Slope = -3.7; y-intercept = 18
2. Find the base of a triangle which has an area of 2 1/4 square inches, and a height of 1/8 in.
Answer:
36 inches
Step-by-step explanation:
Given data
Area of triangle =2 1/4 square inches
Area =9/4 square inches
Height of triangle =1/8 inches
We know that the expression for the area of triangle is
Area = 1/2Base *Height
9/4=1/2*Base *1/8
9/4=Base/16
Cross multiply
16*9=Base*4
144=Base*4
Base =144/4
Base=36 inches
(15 Points)
Question: Triangle ABC has the coordinates A (4,2), B (7,6) and C (7,2). Is this an equilateral triangle, a right triangle, or an isosceles triangle. Use evidence to explain your answer.
Answer:
this is an equilateral triangle
by using distance formula
21 POINTS!! Thank you so much!! There’s also things on my page worth lots points points as well! So if you could help with those that would be awesome!!
Answer:
Second one
third one
fifth one
last one
Step-by-step explanation:
Based on the x intercepts we can write
a(x+1)(x-5)
where a is some constant
solve for a by plugging in some coordinates
let's plug in (1,-8)
-8=a(1+1)(1-5)
-8= -8a
a=1
therefore the quadratic is (x+1)(x-5)
expand this
x²-4x-5
To find out where something is decreasing/increasing it's easiest to take the first derivative
x²-4x-5= 2x-4
set this equal to 0
2x-4=0
2x=4
x=2
Which means that our two intervals are
(-∞,2)U(2,∞)
plug in any values in the intervals to see whether or not the function is increasing/decreation
Let's plug in 0 for (-∞,2)
2(0)-4
-4
It's negative so it's decreasing on this interval
DO the same thing with the other one
let's plug in x=3
2(3)-4
2
this is positive so it's increasing on this interval
Go back to the critical value of x=2 and plug this into the equation to find the max/min
(2+1)(x-5)= -9
This is a minimum because the cofeccient for the degree is positive
For the limit one notice that we have a positive, even degree which means the end behavior is positive, positive
what this means is as x approaches negative infinity it's infinity
and as x approaches infinity it's infinity
© What is the equation of the graph shown?
6
5
4
3
-6-5-4-7-2-1
1
3
4
5
6
-4
А
B
y=23
2y = 2
y = x + 2
y = 2x + 2
Answer:
The answer is c
Step-by-step explanation:
as it is a straight line graph
Which is a true statement?
A. m^2– n^2 = (m-n)(m-n)
B. m^2 + n² = (m + n) (m + n)
c. m^3 - n^3= (m - n) (m^2+ mn + n^2)
D. m^3+ n^3 = (m+n)(m^2 + mn +n^2)
Answer:
C-true
Step-by-step explanation:
A-false
B-false
C-true
D-false
used substitution
The product of the two expressions (m - n)(m + n) gives x² - 4
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given the expression (m - n)(m + n):
Multiplying the two expressions gives:
m² + mn - mn - n²
This gives:
m² - n²
The product of the two expressions (m - n)(m + n) gives x² - 4
Find out more on equation at: https://brainly.com/question/2972832
#SPJ2
please help me i have 5 minutes left: )! ill give Brainliest thanks<3
Answer:
B
Step-by-step explanation:
B
I got it partially right I think but I need help !
Answer:
U got it correct
Step-by-step explanation:
Is -33.1 a whole number
Answer:
No
Step-by-step explanation:
This is because it's part of a whole. It has to be an integer to be whole.
Answer:
no because Whole numbers include positive integers along with 0 and also Whole numbers include natural numbers that begin from 1 onwards and also this a negative are not considered as a whole number so its a no
Step-by-step explanation:
Please answer
Evaluate 60st when s = 5 and t = -3.7
Answer:
[tex]60st \\ = (60 \times 5 \times - 3.7) \\ = - 1110[/tex]
Answer:
-1110
Step-by-step explanation:
given:
s = 5
t = -3.7
to find
60st
=60*s*t
=60*5*(-3.7)
=300*-3.7
=-1110
HELPP PLEASEEE thanks!
Answer:
about 1587
that is the answer to the question
Step-by-step explanation:
I just typed it in a calculator
Answer: D
Step-by-step explanation:
Area is pi x r^2
Diameter is 2r
46.7/2 = 23.35
3 x 23.35^2 = 1635.67 or closest to D
Rationalize 1/√18
Will Mark as Brainliest for the best
Answer:
[tex]\frac{\sqrt{2} }{6}[/tex]
Step-by-step explanation
[tex]\frac{1}{\sqrt{18} } \\\frac{1}{\sqrt{18} } *\frac{\sqrt{18} }{\sqrt{18} } \\\frac{1*\sqrt{18} }{(\sqrt{18} )^2} \\\frac{1\sqrt{18} }{18} \\\frac{3\sqrt{2} }{18} \\\frac{\sqrt{2} }{6}[/tex]
Solve using the quadratic formula: 2x^2 + 7x - 5 = 0
Step-by-step explanation:
my answer is in the above image
I WILL GIVE BRAINLIEST!! I WILL ASLO GIVE 20+ POINTS, HELP ASAP, NO LINKS <3
For the image below, which action below allows the scale to be balanced?
A) Add 3 blocks to the right side
B) Add 4 blocks to the right side
C) Take away 3 blocks to the left side
D) Take away 5 blocks to the left side
Answer:
D
Step-by-step explanation:
Answer:
D) Take away 5 blocks to the left side is once again the correct option.
Step-by-step explanation:
we need to have the same amount of blocks on each side to make it balanced.
There are 8 blocks on the left and 3 blocks on the right.
Option A) 8 = 6 is not balanced.
(8 = 3 + 3)❌
Option B) 8 = 7 is not balanced.
(8 = 3 + 4)❌
Option C) 5 = 3 is not balanced.
(8 - 3 = 3) ❌
Option D) 3 = 3 is balanced!
( 8 - 5 = 3)✅
Have a nice day! :-)
The number of texts per day by students in a class is normally distributed with a
mean of 130 texts and a standard deviation of 20 texts. Identify all true statements.
1. A little more than 2% of the students text
under 90 times per day.
2. About 50% of the students text more than 130 times per day.
3. About 15% of the students send over 190 texts per day.
4. About 68% of the students text between 100 and 130 times.
5. A student texting 130 times per day would have a z score of 1.
6. A student texting 160 times falls between 1 and 2 standard deviations from the mean.
Answer:
1, 2, 6
Step-by-step explanation:
The z score shows by how many standard deviations the raw score is above or below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean, \ \sigma=standard\ deviation[/tex]
Given that mean (μ) = 130 texts, standard deviation (σ) = 20 texts
1) For x < 90:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{90-130}{20} =-2[/tex]
From the normal distribution table, P(x < 90) = P(z < -2) = 0.0228 = 2.28%
Option 1 is correct
2) For x > 130:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{130-130}{20} =0[/tex]
From the normal distribution table, P(x > 130) = P(z > 0) = 1 - P(z < 0) = 1 - 0.5 = 50%
Option 2 is correct
3) For x > 190:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{190-130}{20} =3[/tex]
From the normal distribution table, P(x > 3) = P(z > 3) = 1 - P(z < 3) = 1 - 0.9987 = 0.0013 = 0.13%
Option 3 is incorrect
4) For x < 130:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{130-130}{20} =0[/tex]
For x > 100:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{100-130}{20} =-1.5[/tex]
From the normal table, P(100 < x < 130) = P(-1.5 < z < 0) = P(z < 0) - P(z < 1.5) = 0.5 - 0.0668 = 0.9332 = 93.32%
Option 4 is incorrect
5) For x = 130:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{130-130}{20} =0[/tex]
Option 5 is incorrect
6) For x = 130:
[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{160-130}{20} =1.5[/tex]
Since 1.5 is between 1 and 2, option 6 is correct
Which correctly describes the height of a
cylinder?
A) The distance
between the two
circular
bases.
B) The distance
across the
circular
Base of the
cylinder
Answer:
A
Step-by-step
If i ever explain the height of a cylinder is would say from the top to the bottom. So A is the correct answer
Which of the following theorems verifies that XYZ - UWV
Answer:
I think it's AA because the sum of a triangle is 180 and if you subtract the right angle and the other angle from 180 it gives you the same angle in the other triangle.
Step-by-step explanation:
180-(90+70)=20 The other angle in the first triangle
180-(90+20)=70 The other angle in the second triangle
These angles show that they're similar
Solve using substitution 4x+2y=10
X-y=13
Answer:
Your solution is (6, -7)
Step-by-step explanation:
4x + 2y = 10
x - y = 13
We want to solve for one variable at a time.
Let's start with x.
x - y = 13
Add y to both sides.
x = 13 + y
Now we have an expression for x.
Plug this into each instance of x in the first equation.
4x + 2y = 10
4(13 + y) + 2y = 10
Distribute the 4 across the parentheses.
52 + 4y + 2y = 10
Combine like terms.
52 + 6y = 10
Subtract 52 form both sides.
6y = -42
Divide both sides by 6.
y = -7
Now that we know y, plug its value back into the expression for x.
x = 13 + y
x = 13 + (-7)
Simplify.
x = 13 - 7
Subtract.
x = 6
Your solution is (6, -7).
Hope this helps!
 can someone pls help for brainlest
Answer:
40ft³ i believe
2×2×10 = 40ft
Answer:
40 cubic feet
Step-by-step explanation:
Length = 2 ft
Width = 10 ft
Height = 2 ft
Area = l × w × h
= 2 × 10 × 2
= 20 × 2
= 40 cubic feet
Hope it is helpful...Solve the system by addition/subtraction:
3x - 2y = -11 and 3x - 4y = -19
Answer for this system: (-1, 4)
what you would do if Jesus came to your house.
Answer:
Give him a Big hug and be so happy
Ask him all the questions that I have by my thinking marathon at 3 a.m.
7.865 rounded to the nearest whole number
Answer:
8
Step-by-step explanation:
Since the first decimal place is greater than 5, it rounds to 8, because 8 is the next whole number to 7.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Which of the following is the value of 2x3 + 5x + 9 wher
x= 10?
Answer:
Ans = 65
Step-by-step explanation:
2x3 + 5x + 9
2x3 + 5x10 + 9
6 + 50 + 9
56 + 9
= 65
What are the x-intercepts of this function?
Answer:
-2,-1,3
Step-by-step explanation:
this is where the line passes the x axis
Please I need help answering this and please explain it to me thanks you the person that gets the answer correct will be marked the brainlyist person
Question 12
A tree is standing next to a 40 foot high building. The tree has an 18 foot shadow, while the building has a 16 foot shadow. How tall is the tree rounded to the nearest foot?
А
42 feet
B
36 feet
c
45 feet
D
7 feet
2021 Illuminate Education Inc
Answer:
A
Step-by-step explanation:
Lee kept track of how many kilometres she walked each week for the past two months.
These are the number of kilometers she walked each week.
8, 10 , 9, 10, 7, 8, 8, 4
Find the mean, median, and mode.
Which measure of central tendency will help her predict how much she will walk in week six.
Answer:
median: 8
mode: 8, 10
mean: 8
The mean will help her predict how much she will walk in week six.
Step-by-step explanation:
First order the numbers:
4, 7, 8, 8, 8, 9, 10, 10
median: 8
mode: 8, 10
mean: 8
Which measure of central tendency will help her predict how much she will walk in week six. The mean will help her predict how much she will walk in week six.
Which of the following is equivalent to the expression below?
log 4-log 24
Answer:
log (1/6)
Step-by-step explanation:
Using the property that log a - log b = log(a/b), we get that log 4 - log 24 = log(4/24) = log (1/6)
I hope this helps! :)
Plz help!!! I will brainliest and no links!! Also plz explain ur answer!!
Mrs. O and her family decided to go to Disneyland for vacation. When they left their house, they had to put 3/4 of a tank of gas in their car. When they got to St. George, they put 1/2 of a tank of gas in their car. How much more gas did they put in the car the first time?
Answer:
2/7
Step-by-step explanation:
So we multiply 3 by 2, and get 6.
Then we multiply 1 by 4, and get 4.
Next we give both terms new denominators -- 4 × 2 = 8.
So now our fractions look like this:
6/8 - 4/8
6 − 4 = 2
So the answer is:
2/8
Question 18(Multiple Choice Worth 1 points) (05.02 MC) The figure shows a parallelogram inside a rectangle outline: 1 foot B ---... 1 foot 1 foot 2 What is the area of the parallelogram? 0 square foot square foot 0 square foot square foot
Answer:
1/9
Step-by-step explanation:
You find the area of the rectangle first (1/2 by 1/3)
then find the area excluding the parallelogram (the two triangles outside, which would be 1/6 by 1/3 since both are of the same side measurement)
(sorry if this is hard for you to understand by the way)
Then subtract the answer from step 2 from step 1 and voila, you get your answer
