All categories

2 years ago

100 POINTS IF YOU GUESS RIGHT PLEASE HELP

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

6 0

Answer:

5 and 3

Step-by-step explanation:

Let the numbers be x and y.

We have:

x + y = 8
x - y = 2

Sum the two and find x:

2x = 10
x = 5

Find y:

y = 5 - 2
y = 3

You might be interested in

PLEASE HELP I DONT WANNA FAIL MY QUIZ!!!

Gwar [14]

Answer: 2.5 ft.

Step-by-step explanation: We know that the wall is 10ft and each poster is 1 1/4 ft, so subtract both posters from the wall, 10-2.5 = 7.5, then divide 7.5 by 3 since we need 3 lengths, and we get 2.5ft. So for x, it would be 2.5ft.

x=2.5

Hope this helps!

3 0

3 years ago

Read 2 more answers

Given f(x)-x-5,solvr for x when f (x)=4

malfutka [58]

Answer:

-1-x

Step-by-step explanation:

i think im not sure

6 0

3 years ago

Find the exact value of cos(7\pi /12)

Naya [18.7K]

7π/12 lies in the second quadrant, so we expect cos(7π/12) to be negative.

Recall that

$\cos^2x=\dfrac{1+\cos(2x)}2$

which tells us

$\cos\left(\dfrac{7\pi}{12}\right)=-\sqrt{\dfrac{1+\cos\left(\frac{7\pi}6\right)}2}$

Now,

$\cos\left(\dfrac{7\pi}6\right)=-\cos\left(\dfrac\pi6\right)=-\dfrac{\sqrt3}2$

and so

$\cos\left(\dfrac{7\pi}{12}\right)=-\sqrt{\dfrac{1-\frac{\sqrt3}2}2}=\boxed{-\dfrac{\sqrt{2-\sqrt3}}2}$

7 0

3 years ago

To the nearest tenth, what is the area of a circle whose diameter is 4.4 feet?

Vaselesa [24]

Answer:

15.21= 15.2 when rounded

Step-by-step explanation:

the formula for finding the area of a circle with the diameter is
A= 1/4 × π ×d^2

6 0

2 years ago

Read 2 more answers

(18÷3)2+((17+3)+5_2)

Paul [167]

Answer:

35, Hope I got right

Step-by-step explanation:

6×2+20+3

12+23

3 0

3 years ago