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Free_Kalibri [48]
3 years ago
11

What is the value of the expression below when w = 3?4w2 – 7w – 8​

Mathematics
1 answer:
fredd [130]3 years ago
4 0

Step-by-step explanation:

w=3

4w^2-7w-8

4*3^2-7*3-8

4*9-21-8

4*9-29

36-29

7

hope this helps

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If any two rows of matrix are equal the determinent of the matrix is
dimaraw [331]

Answer:

Then the determinant is 0.

Step-by-step explanation:

Determinant  of ( 1  2 )      =   1*2 - 2*1   = 0

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4 0
3 years ago
Find the circumference given the area = 113.1 ft². Use 3.14 for π as necessary.
olga_2 [115]

The circumference of the circle is 37.68 ft

Step-by-step explanation:

Given,

The area of the circle is 113.1 sq ft

To find the circumference of the circle we need to find the radius of the circle first

Formula

The area of circle with radius r is = πr^{2} sq unit

The circumference of circle with radius r is = 2πr unit

Let us take the radius of the circle is r ft

According to the problem,

πr^{2} =113.1

or, r^{2} = \frac{113.1}{3.14}

or, r^{2} = 36.01 = 36 (approx)

or, r = \sqrt{36}

or, r = 6

Now,

The circumference of the circle is 2×3.14×6 ft = 37.68 ft

5 0
3 years ago
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sleet_krkn [62]

Answer:

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3 years ago
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6 0
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Shtirlitz [24]
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—— —-
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3 years ago
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