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3 years ago

I need help asap:/.......

Mathematics

1 answer:

Lady_Fox [76]3 years ago

3 0

2x+4x=12 and y=-1/2x+3

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PLEASE HELP DUE IN AN HOUR NO LINKS PLEASE.

Korolek [52]

Answer:

y = 3/2 when x = 15

Step-by-step explanation:

y = k / √1+x

2 = k / √1+8 = k/3

k = 6

y' = 6 / √1+15 = 6/4 = 3/2

5 0

3 years ago

Help ASAP please! ill mark brainliest

kotegsom [21]

Answer:

Step-by-step explanation:

i think it is 2

6 0

3 years ago

Read 2 more answers

The original price of a set lunch was 30 dollars. It is now sold at a 20%

Ivenika [448]

Find out the total discount percentage that students receive.

20% + 10% = 30%

30/100 x 30 = 9 dollars

30 - 9 = 21 dollars (Final answer)

5 0

3 years ago

Read 2 more answers

What is the decimal equivalent of the 15/8

ElenaW [278]

Answer:

A) 15.8

Step-by-step explanation:

10/8 = .80

15+ .80 = 15.8

6 0

3 years ago

A 10 inch cookie cake is divided into 8 slices. What is the area of 3 slices

brilliants [131]

Answer:

The area of 3 slices is $\frac{75}{8}\pi\ in^2$ or approximate $29.4\ in^2$

Step-by-step explanation:

<em>Find out the area of the cookie cake</em>

The area of the circle (cookie cake) is

$A=\pi r^{2}$

we have

$r=10/2=5\ in$ ----> the radius is half the diameter

substitute

$A=\pi (5)^{2}$

$A=25\pi\ in^{2}$

Remember that the area of the complete cookie cake subtends a central angle of 360 degrees

If the cake is divided into 8 slices

then

The central angle of each slice is equal to

360/8=45°

The central angle of 3 slices is equal to

3(45°)=135°

By proportion

Find out the area of 3 slices

Let

x ----> the area of 3 slices

$\frac{25\pi}{360}=\frac{x}{135}\\\\x=25\pi(135)/360\\\\x=\frac{3,375}{360}\pi\ in^2$

Simplify

$\frac{75}{8}\pi\ in^2$ ----> exact value of the area of 3 slices

Find out the approximate value of the area of 3 slices

assume

$\pi =3.14$

substitute

$\frac{75}{8}(3.14)=29.4\ in^2$

5 0

4 years ago