Please please help me if you can I really need it
If you can please answer all of the questions
They should be simple if you know basic geometry
Thank you so much

Answer:

Yes

Step-by-step explanation:

Dan used 2 and 6, and after 3 and 9. If you multiply 2×1.5 = 3, and 6×1.5 = 9, so the ratio is the same and is equal to 1.5

Answer:

Yes

Step-by-step explanation:

2/6 for the first ratio can be reduced to 1/3

3/9 for the second ratio can also be reduced to 1/3

Answer:

d took test

Step-by-step explanation:

egdgxyzydd7fufyfgdvdvxvxhdfrhrhthrueurgrgrhrhrbr

Answer:

3rd option

Step-by-step explanation:

Cavalieri's principle states that two figures which have the same height and  same cross-sectional area have the same volume

the height of the cylinders are both 42

the diameter of both figures is 24 as the diameter of the second cylinder = 12 x 2 = 24

the radius of the cylinders are both equal to 12

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

thus the volumes should be equal

Step-by-step explanation:

How was Toto an expensive deal for grandfather? Do you think it

was a lesson for grandfather?

Answer:

[tex] \displaystyle {r}^{} = 6[/tex]

Step-by-step explanation:

remember that,

[tex] \displaystyle V _{ \rm sphere} = \frac{4}{3} \pi {r}^{3} [/tex]

given that,

thus substitute:

[tex] \displaystyle \frac{4}{3} \pi {r}^{3} = 288\pi[/tex]

divide both sides by 4/3π:

[tex] \displaystyle {r}^{3} = 216[/tex]

cubic root both sides:

[tex] \displaystyle {r}^{} = 6[/tex]

and we are done!

Answer:

Step-by-step explanation:

f(1) = 160

f(n + 1) = -2 * f(n)

n = 1

f(2) = -2*f(1)

f(2) = -2*160

f(2) = - 320

f(3) = - 2*f(2)

f(3) = -2 * - 320

f(3) = 640

f(4) = -2 * f(3)

f(4) = -2 * 640

f(4) = - 1280

Answer:

1.78 hours

Step-by-step explanation:

If t varies inversely with the speed, the formula for that is  t= \frac{k}{r} .  If t = 2 and r = 40, then we can solve for k, the constant of variation.  Multiply both sides by 40 to get  k = 80.  Now we need to find the value for t when r = 45.  Using the k value we just solved for, we will fill in the equation as  t= \frac{80}{45}   for a t value of about 1.78 hours

Answer:

No, it's wrong

[tex] {x}^{2} - 8x - 9 = 0 \\ (x - 9)(x + 1) = 0 \\ x = 9 \: and \: - 1[/tex]

Answer:

Step-by-step explanation:

Answer:

the surface area is 263.76 feet²

hope this helps

have a nice day

answer:

15

step-by-step explanation:

equation: 24 - t

variable: t

replace the variable with the number that represents it (9) & subtract

24 - t = ?

24 - (9) = 15

hope this helped!

Answer:

y = 3x + 1

Step-by-step explanation:

The y - intercept is +1

And the rise over run = 3/1  (because 3 is also 3/1)

Pictures are attached.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

A) y=3x+1

1 is the y-intercept (it is on the y axis)

you start at the 1 on the graph where the line passes through, then go 3 squares up and 1 to the right to land on the line again. This is rise over run, which you rise 3 squares up from 1, then run 1 square to the right. 3/1 = 3

Answer:

The answer is A (8 inch)

Step-by-step explanation:

All if the sides and angles are the same.

Answer:

c. students who eat in the cafeteria

Step-by-step explanation:

it wouldnt help to include people who dont eat the food and therefore wont have an honest opinion about the food. They have to talk to the people who do eat the food, which are those who eat in the cafeteria

Answer:

i will buy wo different with good price  

Step-by-step explanation:

z = x/y

____________

Answer:

A= 100.3

B= 43.5

C =36.2

Step-by-step explanation:

Answer:

The answer for Acellus people is

A = 100.3

B = 43.5

C = 36.2

Step-by-step explanation:

Answer:

[tex]y = \sqrt{ 900 - x\²[/tex]

Step-by-step explanation:

In the complete question, the area of  the roller coaster is:

[tex]x\² + y^2 = 900[/tex]

Required

Solve for y

We have:

[tex]x\² + y^2 = 900[/tex]

Subtract [tex]x\²[/tex] from both sides

[tex]y^2 = 900 - x\²[/tex]

Take positive roots of both sides

[tex]y = \sqrt{ 900 - x\²[/tex]

Answer:

the first

Step-by-step explanation:

i did the test

Answer:

Answer:

Start at zero, then go to the left two times, then go down eight more. The new location would be negative ten.

Step-by-step explanation:

Answer:

45 green marbles

Step-by-step explanation:

Green : Blue : Red = 3 : 7 : 5

Fraction of green marbles = [tex]\frac{3}{3+7+5}=\frac{3}{15}[/tex]

Total marbles = 225

Number of green marbles = [tex]\frac{3}{15}*225[/tex]

                                           = 3 * 15

                                           = 45

Answer:

4x + 8y + 20 = 0

Step-by-step explanation:

Answer:

4th option

Step-by-step explanation:

Given

B (- 5, 3 ) → B' (2, 1 )

The change in the x- coordinates are - 5 → 2 , that is + 7

The change in the y- coordinates are 3 → 1 that is - 2

Then the translation rule is

(x, y ) → (x + 7, y - 2 )

If translation moves point B (-5,3) to point B’ (2,1).  Then (X+7, y-2) is the image of (x,y) under this translation

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

Given,

A translation moves point B (-5,3) to point B’ (2,1).

We need to find the image of  (x,y) under this translation

A graph is translated k units horizontally by moving each point on the graph k units horizontally.

Which means to get B' which translation is used.

B (- 5, 3 ) and  B' (2, 1 )

If we add +7 to x coordinate we will get 2.

When we subtract 2 from B we will get 1

So the translation rule is

(x, y ) → (x + 7, y - 2 )

Hence (X+7, y-2) is the image of (x,y) under this translation

To learn more on Graphs click:

https://brainly.com/question/17267403

#SPJ2

Answer:

a, c, d, e

Step-by-step explanation:

Step-by-step explanation:

180°+63°

=243°

holp it help

Answer:

it's 5

Step-by-step explanation:

Answer:

r = 5

Step-by-step explanation:

if x and y are proportional then 'y = rx' where 'r' is the constant of proportionality

35 = 7r

60 = 15r

100 = 20r

'r' is 5

Answer:

-4

Step-by-step explanation:

[tex](y^4-y^3-3) \times (2y^3-2)=...+[(-1)(-2)+(2)(-3)]y^3+...\\=...+[2-6]y^3+...\\=...+(-4)y^3+...\\[/tex]

so coefficient of y^3=-4