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3 years ago

Which of the following are not polynomials

Mathematics

1 answer:

tankabanditka [31]3 years ago

5 0

Answer:

B and E

Step-by-step explanation:

A polynomial cant have a variable as a denominator nor a negative/fractional exponent

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Using distributive property what is 3(5 +6) =

Annette [7]

Answer:

3(5 +6) = <em>33</em>

Step-by-step explanation:

3(5+6)

so first you multiply 3 by 5

which is 15

then you multiply 3 by 6

which is 18

and that remains as 15+18

which in total equals <em>33</em>

7 0

3 years ago

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A force of 12 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching i

sattari [20]

Answer:

Work done in stretching the spring = 7.56 lb-ft.

Step-by-step explanation:

Normal length of the spring = 8 in or $\frac{8}{12}$ ft

= $\frac{2}{3}$ ft

If the spring has been stretched to 11 inch then the stretched length of the spring is = 11 in

= $\frac{11}{12}$ ft

Force applied to stretch the spring = 12 lb

By Hook's law,

F = kx [where k is the spring constant and x = length by which the spring is stretched]

12 = k( $\frac{2}{3}$ )

k = 18

Work done (W) to stretch the spring by $\frac{11}{12}$ ft will be

W = $\int\limits^\frac{11}{12} _0 {kx} \, dx$

= $\int\limits^\frac{11}{12} _0 {(18x)} \, dx$

= $18[\frac{x^{2}}{2}]^{\frac{11}{12}}_0$

= 9( $\frac{11}{12}$ )²

= 7.56 lb-ft

6 0

3 years ago

Write 3 additions 3 multiplications 2 division equato that equals the number 42830

alex41 [277]

Answer:

28,550.33333

Step-by-step explanation:

28,550.33333 + 3 = 28,553.33333

28,553.33333 x 3 = 85,659.99999

85,659.99999 ÷ 2 = 42830

6 0

3 years ago

PLEASE HELP !!!!!!!!!!!!

V125BC [204]

The answer would be b - associate w it

3 0

3 years ago

What is the value of X?

Pavel [41]

Step-by-step explanation:

$x = 2 \times 52.5 \degree \\ x = 105 \degree$

4 0

3 years ago

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