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3 years ago

21 = m + 9; m= 11 solution

Mathematics

1 answer:

Korvikt [17]3 years ago

8 0

The solution is not 11 it should be 12.21-9=12

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16,42 greatest common factor

kozerog [31]

2

42 ÷ 2 = 21
16 ÷ 2 = 8

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42 ÷ 6 = 7
16 ÷ 6 = 2.66
No...

42 ÷ 7 = 6
16 ÷ 7 = 2 2/7
No...

42 ÷ 14 = 3
16 ÷ 14 = 1.1428
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7 0

3 years ago

Round to the nearst tenth

Serga [27]

Answer:

Step-by-step explanation:

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

Write the equation of the line MN, which is formed by the points M(-3,5) and N(2,0)

belka [17]

The equation is <span>y = -x + 2</span>

3 0

3 years ago

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F(x)=-(x+2)^2+3 put in standard form

Natasha_Volkova [10]

Answer:

F(x)=-x^2-4x-1

Step-by-step explanation:

According to PEMDAS, do the exponent part for the parentheses, sense it goes first.

F(x)= -(x^2+4x+4)+3

Then distribute the - sign

F(x)= -x^2-4x-4+3

Then you simplify

F(x)= -x^2-4x-1

8 0

3 years ago

Read 2 more answers