4 years ago

Identify the domain and range of the function f(x) = x2 - 10x + 21

Mathematics

1 answer:

My name is Ann [436]4 years ago

5 0

Idk sorry I am not that good at math :)

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Use the number line below, where RS = 7y +5. ST = 3y +5, and RT = 70. a. What is the value of y?

NeTakaya

Answer:

Step-by-step explanation:

7y+5+3y+5=70

10y+10=70

10y=60

y=6

7(6)+5= 42+5= 47

3(6)+5= 18 + 5 =23

47+23= 70

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3 years ago

Simplify this radical 3√12 and this one 2√(48x^3 )

MakcuM [25]

For number one you should get 6√3

4 0

3 years ago

How do I find the measure of the interior angle?

nataly862011 [7]

Answer:

see the explanation

Step-by-step explanation:

we know that

The sum of the interior angles in any polygon is given by the formula

$S=(n-2)180^o$

where

n is the number of sides of the polygon

step 1

Find the sum of the interior angles in the given polygon

we have

$n=5\ sides$

substitute

$S=(5-2)180^o=540^o$

step 2

Find the value of x

we know that

$-3x+125+(45-x)+(-x+90)+80=540$

solve for x

$-5x+340=540$

$-5x=200\\x=-40$

step 3

Find the measure of each interior angle

substitute the value of x

Angle A

$-3(-40)=120^o$

Angle B

$80^o$

Angle C

$-(-40)+90=130^o$

Angle D

$45-(-40)=85^o$

Angle E

$125^o$

3 0

3 years ago

Can you help me with this...thank you

mr_godi [17]

You solve by with by altitude! Hope it helps

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3 years ago

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Please help me and I’ll give you brainiest!!!!!!!!!

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Answer:

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Explain:

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