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2 years ago

Determine the perimeter of a square with a diagonal of √72 centimeters

1 answer:

const2013 [10]2 years ago

7 0

The correct answer is 23.6
First find the length of the square root of 72 which is 8.4
Next divide 8.4 by the square root of to to find the length of a side 5.9
Multiply 5.9 by 4 to get 23.6

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Find the volume of the cylinder in terms of pi.

Allushta [10]

Answer:

$\large\boxed{V=81\pi\ in^3}$

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have r = 3in and H = 9in. Substitue:

$V=\pi(3^2)(9)=\pi(9)(9)=81\pi\ in^3$

5 0

2 years ago

Lee watches TV for 3 hours per day. During that time, the TV consumes 250 watts per hour. Electricity costs (12 cents)/(1 kilowa

lana66690 [7]

<h2>184 cents in a month. </h2><h2>All you have to do is multiply 12 cents by 3 hours.Making it 36.</h2><h2>Then multiply 36 by 30.</h2>

7 0

2 years ago

If p, q are zeroes of polynomial f(x) =2x^2-7x+3,find the value of p^2+q^2

Elza [17]

Answer:

p^2 + q^2 = 22/9.

Step-by-step explanation:

For a quadratic function ax^2 + bx + c if the zeroes are A and B then

A + B = -b/a and AB = c/a.

2x^2 - 7x + 3

Now p and q are the zeroes of the above function so

p + q = 7/3 and pq = 3/2.

Now p^2 + q^2 = (p + q)^2 - 2pq

= (7/3)^2 - 2* 3/2

= 49/9 - 3

= 49/4 - 27/9

= 22/9.

4 0

2 years ago

Find mFE<br> A) 52°<br> C) 76°<br> B) 93°<br> D) 112°

mixer [17]

Answer:

76 degrees

Step-by-step explanation:

GE = 180 since it is a straight line

GE = GR + FE

180 = 7x+6 +6x-8

Combine like terms

180 = 13x-2

Add 2 to each side

182 = 13x

Divide by 13

182/13 = 13x/13

14 =x

We want FE

FE = 6x-8

FE = 6(14) -8

=84 -8

=76

3 0

2 years ago

Write the product as a trinomial.

ddd [48]

1. 2r-5
2. -21r-50
3. 4r-50
4. 14r+50
5. 19r-50

8 0

2 years ago