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4 years ago

Help math hurry! 20min left!!! 5 questions!

Mathematics

1 answer:

Thepotemich [5.8K]4 years ago

3 0

1 - 3
2 - 3
3 - C
4 - D
5 - C

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What percentage of 40 is 8?

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Answer:

20%

Step-by-step explanation:

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3 years ago

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Algebra 1 CR-8

antiseptic1488 [7]

$\mathrm{Domain\:of\:}\:x^2+2x-15\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

$\mathrm{Range\:of\:}x^2+2x-15:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:-16\:\\ \:\mathrm{Interval\:Notation:}&\:[-16,\:\infty \:)\end{bmatrix}$

$\mathrm{Axis\:interception\:points\:of}\:x^2+2x-15:\quad \mathrm{X\:Intercepts}:\:\left(3,\:0\right),\:\left(-5,\:0\right),\:\mathrm{Y\:Intercepts}:\:\left(0,\:-15\right)$

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3 years ago

10(x – 9) > -270<br> How do I do this ?

Ilia_Sergeevich [38]

Answer:

x > -18

Step-by-step explanation:

10 ( x - 9 ) > -270

Treat the inequality like an equation,

Distribute first:

10 ( x - 9 ) > - 270

10x - 90 > -270

Inverse operations:

10x - 90 > -270

+90 +90

10x > -180

/10 /10

x > -18

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3 years ago

Find the value of each expression 12a+c-b

FinnZ [79.3K]

Answer:

We need more info, take a picture of the qustion

Step-by-step explanation:

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3 years ago

How many students studied more than 20 minutes

Crank

9 students.
4 studied 21 minutes,
2 studies 22 minutes,
1 studied 23 minutes,
and 2 studied 30 minutes.
Hope this helps you:)

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3 years ago

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