will give brainliest (9th grade geometry)
If the scale factor of Figure A to Figure B is 7:2, find the perimeter of Figure A.

Answer: 91

Step-by-step explanation:

Angle between the two vectors u and v is option (a) 0 degree

Vector, in mathematics, a quantity that has both magnitude and direction

Given,

u=(-2,3)

v=(-6,9)

Angle between the two vectors θ =[tex]cos^{-1} \frac{u.v}{|u| |v|}[/tex]

[tex]u.v=(-2)(-6)+(3)(9)\\u.v=12+27\\u.v=39[/tex]

[tex]|u|=\sqrt{-2^{2}+3^{2} } \\|u|=\sqrt{13}[/tex]

[tex]|v|=\sqrt{-6^{2}+9^{2} } \\|v|=\sqrt{117}[/tex]

Angle between two vectors θ =[tex]cos^{-1} \frac{u.v}{|u| |v|}[/tex]

θ=[tex]cos^{-1} \frac{39}{\sqrt{13}.\sqrt{117} } \\cos^{-1}\frac{39}{39}\\ cos^{-1}1=0[/tex]

Hence, the angle between the vectors u and v is 0 degree

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Answer:

30

Step-by-step explanation:

yes there is a a correlation

f(x) = 4x + 60

slope = 4

y-intercept = 60

There is a correlation between the number of hours spent on studies and the score on music test.

As we increase the 0.5 hour on studying, then the music score increases by 2. The function which best fits the data for the correlation is y=60 + 4x

The slope and y-intercept of the plot indicate? that Y= score obtained in music test and X=number of hours spent on studying. The slope of the above equation represent the rate of increase in music score with respect to an increase in the number of hours spent on studying.

The y-intercept gives the music score when the number of hours spent on studying is zero.

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Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

40/50

Answer:

840

Step-by-step explanation:

2% of 700 is 14. Multiply 14 by 10 years, and then add that result (140) to the original amount

Answer:

28 shirts

Step-by-step explanation:

Let's see what we are given.

there are x amount of shirts ($616 total)

there are 12 in a dozen

the regular shirts are $16

the last 12 shirts are $14

Lets make an equation.

616= 14(12) + 16x

616=168+16x

448=16x

x=28

(Sorry if this explanation is bad)

Answer:

g(1) = 0

Step-by-step explanation:

To evaluate g(1) , substitute x = 1 into g(x), that is

g(1) = 4 - 2(3 - 1)

      = 4 - 2(2)

      = 4 - 4

      = 0

Answer: its 0

Step-by-step explanation:

Answer:

Iloveyou ayeeeeeeeeei

❤️❤️❤️

Answer:9

Step-by-step explanation:

Answer:

5. 23

6. 26

7. 20

8. 45

9. 15

10. 120

11. 60 full triangle is 180 and since it is equilateral you divide it by 3 you get 60

12. It is not possible. if you use the pyagorean theorem (not sure on spelling of that?) you get 16 so its not possible for it to be 12.

Answer:

Step-by-step explanation:

Step one:

given data

principal=$880

rate= 3%

final amount = $893.2

time t= 6 months =0.5 years

Step two:

Required

Simple interest

SI=PRT/100

SI=880*3*0.5/100

SI=1320/100

SI=13.2

She paid Simple interest of $13.2

Answer:

sylvia is biking home (segment 1) she is traveling at a constant rate of a mile every 15 minutes, she then takes a 20 minute break relizing she dropped something, she goes back and finds it ten minutes later (3) then she bikes home at a rate of 7 miles per 30 minutes.

Step-by-step explanation:

Answer:

Simplifying

y = 12x + 25

Reorder the terms:

y = 25 + 12x

Solving

y = 25 + 12x

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying

y = 25 + 12x

Step-by-step explanation:

I tried

Answer:

Therefore, the birds visited the feeder = 96

Step-by-step explanation:

Five out of eight birds that visited the feeder ate the birdseed.

i.e. the ration is: 5/8

Given that 60 birds ate the birdseed today.

Note that if we multiply '5' by '12', we get the number 60.

Now, all we need to is to also multiply '8' by '12' to maintain the initial ratio which is 5/8.

i.e. (5×12) / (8×12) = 60/96

Therefore, the birds visited the feeder = 96

Answer:

Step-by-step explanation:

triangles have always total degrees as  180 degrees

let the 3 rd angle be x

so , 70 + 62 + x = 180

70 + 62 = 132

132 + x = 180

x = 180 - 132

x = 52 degrees

part b =  sorry i could not see the part b question clearly

Answer:

f(x)= -2/5x-4

Step-by-step explanation:

-2/5 is the slope and -4 is the y intercept

Answer:

x>-33/2

Step-by-step explanation:

this is because you must solve the equation. when you divide by a negative number in order to get the x alone the sign of the inequality flips.

Answer:

[tex]x > \frac{ - 11 - 22}{2} [/tex]

Step-by-step explanation:

Step 1: Subtract 7x7x from both sides.

−11<9x+22.−7x

Step 2:Simplify 9x+22.-7x9x+22.−7x to 2x+22.2x+22.

−11<2x+22.

Step 3:Subtract 22.22. from both sides.

−11−22.<2x

Step 4:Divide both sides by 22.

[tex] \frac{ - 11 - 22}{2} < x[/tex]

Step 5, Switch sides.

[tex] x > \frac{ - 11 - 22}{2} [/tex]

I hope it helps you.

Answer:

h = — 10.071

Step-by-step explanation:

Look at the picture for my work.

Answer:

They are all not a function

Step-by-step explanation:

a function can only have one output.

3 in this set has 3 outputs and 7 in this set has 3 outputs aswell

Answer:

I can try

Step-by-step explanation:

Answer: C) Cannot be done

Taking the square root of a negative number is not possible unless you involve complex numbers. If your teacher has not introduced that topic yet, then you just simply say "cannot be done" or something along those lines.

Answer:

Step-by-step explanation:

First one

Answer:

A

Step-by-step explanation:

Answer:

4 ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Step-by-step explanation:

12÷3=4

Answer:

0.7 is a decimal and 70/100 or 70% is the percentage for 35/50.

Step-by-step explanation:

Hope this helps!

Answer:

76.2 cm

Step-by-step explanation:

If you convert, said inches, it wouldn't be an exact number, but it would equal 76.2.

Answer:

∠P

Step-by-step explanation:

∠P is between NP and PE

Answer:

d

Step-by-step explanation:

is answer sd