Ask question

Ask question

All categories

3 years ago

7

Please help I will give brainliest A.3 B.6 C. 9 D. 12

2 answers:

Lapatulllka [165]3 years ago

4 0

Answer:

Step-by-step explanation:

I don't know if this is right but I tried my best, the left radius should be 0.95, then the right side should probably be 1.91, my guess is probably 3? If not, it should be 9.

Katyanochek1 [597]3 years ago

3 0

Answer:

A is the answer

You might be interested in

The height of a stuntperson jumping off a building that is 20 m high is modeled by the equation h = 20 -57, where t is the time

cupoosta [38]

A stuntman jumping off a 20-m-high building is modeled by the equation h = 20 – 5t2, where t is the time in seconds. A high-speed camera is ready to film him between 15 m and 10 m above the ground. For which interval of time should the camera film him?

Answer:

$1\leq t\geq \sqrt{2}$

Step-by-step explanation:

Given:

A stuntman jumping off a 20-m-high building is modeled by the equation

$h =20-5t^{2}$ -----------(1)

A high-speed camera is ready to making film between 15 m and 10 m above the ground

when the stuntman is 15m above the ground.

height $h = 15m$

Put height value in equation 1

$15 =20-5t^{2}$

$5t^{2} =20-15$

$5t^{2} =5$

$t^{2} =1$

$t =\pm1$

We know that the time is always positive, therefore $t=1$

when the stuntman is 10m above the ground.

height $h = 10m$

Put height value in equation 1

$10 =20-5t^{2}$

$5t^{2} =20-10$

$5t^{2} =10$

$t^{2} =\frac{10}{5}$

$t^{2} =2$

$t=\pm\sqrt{2}$

$t=\sqrt{2}$

Therefore ,time interval of camera film him is $1\leq t\geq \sqrt{2}$

7 0

3 years ago

Solve the following equation <br><br> 1/x-1+1/x+2=3

disa [49]

Answer:

x = 1

Step-by-step explanation:

Solve for x over the real numbers:

-1 + 2 + 1/x + 1/x = 3

-1 + 2 + 1/x + 1/x = 1 + 2/x:

1 + 2/x = 3

Bring 1 + 2/x together using the common denominator x:

(x + 2)/x = 3

Multiply both sides by x:

x + 2 = 3 x

Subtract 3 x + 2 from both sides:

-2 x = -2

Divide both sides by -2:

Answer: x = 1

6 0

4 years ago

A worker at one farm is paid $486 for the week, plus $0.03 for every pound

Natali5045456 [20]

Answer:sorry this probably is t the most helpful but the closest i could get was 399 lbs. it’s is st$497.7 for one and $$497.8.

Step-by-step explanation:

5 0

3 years ago

PLZ HELP ASAP (tysm and have a great day ) :D

Furkat [3]

Answer:

u = 1

Step-by-step explanation:

7 0

3 years ago

3(-8m - 1) + 5 (m + 8)

Vlada [557]

Step-by-step explanation:

3(-8m-1) + 5(m+8) (remove the parentheses)

-24m - 3 + 5m + 40 (collect like terms and calculate)

-19m + 37

7 0

3 years ago