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4 years ago

Given the function g(x)=−2x−8, evaluate g(−3).

Mathematics

1 answer:

prohojiy [21]4 years ago

4 0

Answer:

g=-2

Step-by-step explanation:

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3 years ago

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Find the national root of x^4+3x^3+3x2-3x-4=0

ozzi

Using a graphic tool.
<span>see attached graphic</span>
<span>
the solutions are
x1=-2
x2=0.811

</span>check

for x=-2

x^4+3x^3+3x2-3x-4

(-2) ^4+3(-2) ^3+3(-2) ^2-4=16+(-24)+12-4=0 ok

For x=0.811

(0.811) ^4+3(0.811) ^3+3(0.811) ^2-4=0.4326+(1.6002)+1.9731-4=0 ok

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4 years ago

Please help ! I’ll mark brainliest ! Have a great day :)

Misha Larkins [42]

Answer: I'm not sure about the first question, I've never been good at equations. The second one is asking for 15x30 = 450. She will make 450 dollars for 15 hours of work.

Step-by-step explanation:

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3 years ago

The number of students in a class is 60. The number of boys is seven-fifths the number of girls. Find the number of boys in the

Fynjy0 [20]

Step-by-step explanation:

Let the number of girls = x

Therefore, no. of boys = $\frac{7}{5} \times x$

$\because \: no \: of \: boys + no \: of \: girls \: = 60 \\ \\ \therefore \: \frac{7}{5} x + x = 60 \\ \\ \therefore \: \frac{7x + 5x}{5} = 60 \\ \\ \therefore \: \frac{12x}{5} = 60 \\ \\ \therefore \: x = 60 \times \frac{5}{12} \\ \\ \therefore \: x = 5 \times 5 \\ \\ \therefore \: x = 25 \\ \\ \therefore \: \frac{7}{5} x = \frac{7}{5} \times 25 = 7 \times 5 = 35 \\$

Thus, no of boys in the class is 35.

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3 years ago

It is exponent laws what is the answer

Aleonysh [2.5K]

Use all the top to multiply by it Then divide by the buttom.

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3 years ago

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