3 years ago

I need help with this problem

Mathematics

2 answers:

Serga [27]3 years ago

6 0

Angles of a triangle is equal to 180
180-52+62=66
angle sum on a straight line is 360
360-66=294

Alja [10]3 years ago

4 0

Its answer choice C would you like me to explain how i worked the problem?

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Answer

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Step-by-step explanation:

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3 years ago

Find the smallest zero of f(x+5)

podryga [215]

ANSWER

1. k=13

2. x=-10

EXPLANATION

The given function is

$f(x) = {x}^{2} + 3x - 10$

To find f(x+5), plug in (x+5) wherever you see x.

This implies that:

$f(x) = {(x + 5)}^{2} + 3(x + 5) - 10$

Expand:

$f(x) = {x}^{2} + 10x + 25+ 3x + 15- 10$

Simplify to obtain

$f(x) = {x}^{2} + 13x + 30$

We now compare with,

$f(x) = {x}^{2} + kx + 30$

This implies that:

$k = 13$

To find the smallest zero of f(x+5), we equate the function to zero and solve for x.

${x}^{2} + 13x + 30 = 0$

${x}^{2} + 10x + 3x + 30 = 0$

$x(x + 10) + 3(x + 10) = 0$

$(x + 3)(x + 10) = 0$

$x = - 10 \: or \: x = - 3$

The smallest zero is -10.

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Alona [7]

Hmmm this is a little hard I believe c

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Evaluate 0! + 1!. 0 1 2

wel

Answer:

Step-by-step explanation:

0! + 1!

= !1 / 1 + 1!

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