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3 years ago

PLEASE HELP!!

Mathematics

1 answer:

ElenaW [278]3 years ago

4 0

Answer:

-1 and -3

(n+7)(n-8)

Step-by-step explanation:

1. Find the Zeros

$f(x)=x^{2} +4x+3$

$f(x)=\left(x+1\right)\left(x+3\right)$

$x+1=0\\x=-1\\x+3=0\\x=-3$

2. Factoring Trinomials

$f(x)=n^{2} -n-56$

$f(x)=\left(n+7\right)\left(n-8\right)$

$n+7=0\\n=-7\\n-8=0\\n=8$

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3 years ago

251-92 is the same as _ - 100

nexus9112 [7]

Answer:

259

Step-by-step explanation:

You could set up an equation that looks like:

$251-92=x-100$

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3 years ago

In a class of 30 students, 19 are studying French (F), 12 are studying Spanish (S) and 7 are studying both French and Spanish. H

Fiesta28 [93]

Answer: There are 14 students not taking any foreign languages.

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4 years ago

A wheel has a radius of 12 cm.

Vladimir [108]

Result: <u>Circumference = 150.72cm</u>

Explanation:

To find the circumference, C, we will use this formula:

C = 2 * 3.14 * r

Substitute:

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Multiply:

2 x 12 = 24

24 x 3.14 = 75.36

___________________________________________________________

And since the question asked for two revolutions.

All we need to do is multiply 75.36 by 2:

75.36 x 2 = <u>150.72</u>

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4 years ago