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3 years ago

M 2 = 40°, m 4 = 150°, m 3 =

Mathematics

2 answers:

butalik [34]3 years ago

8 0

Hello!

First you have to find angle 1

angle 1 and angle 4 are supplementary meaning they add to 180

angle 1 + angle 4 = 180

angle 1 + 150 = 180

angle 1 = 30

The angles in a triangle always add up to 180

angle 1 + angle 2 + angle 3 = 180

30 + 40 + angle 3 = 180

70 + angle 3 = 180

angle 3 = 110

The answer is 110°

Hope this helps!

Crazy boy [7]3 years ago

7 0

The answer is 110° Hope this helps!

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Write the expression in standard form <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B3-15i%7D" id="TexFormula1" title="\

valentina_108 [34]

Answer:

7/78 - 35/78i

Step-by-step explanation:

A complex number is a real number, an imaginary number or a number with both real and imaginary number. Its standard form is:

a + bi

For the expression, 7/ 3-15i 

(7/ 3-15i) (3+15i)

21 - 105i / (234)

7/78 - 35/78i

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3 years ago

3x^2-3x ----------- -3 x^2-9x please give me the simplified answer + explanation

STatiana [176]

You want us to simplify $\frac{3x^2-3x}{x^2-9x}-3$

first, factor top and bottom
$3x^2-3x=3x(x-1)$
$x^2-9x=x(x-9)$

so we have
$\frac{3x(x-1)}{x(x-9)}-3=$
$\frac{3(x-1)}{x-9}-3$
we want to combine fractions so multiply 3 by $\frac{x-9}{x-9}$
$\frac{3(x-1)}{x-9}-\frac{3(x-9)}{x-9}=$
$\frac{3(x-1)-3(x-9)}{x-9}=$
$\frac{3x-3-3x+27}{x-9}=$
$\frac{24}{x-9}$

the simplified answer is $\frac{24}{x-9}$

8 0

4 years ago

Which expression is equal to 7/8

myrzilka [38]

7/8 .. *2 = 15/16

7/8 ...* 5 = 35/40

7/8 ...* 10 = 70/80

You can multiply the numerator and denominator by any number ( must be the same number), to result in an equivalent expression

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4 years ago

HELP ASAP WILL MARK BRAINLIEST IF YOU DONT KNOW DONT ANSWER

astraxan [27]

Answer:

x = 13

48 = 5x - 17

+17 + 17

5x = 65

x = 13

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3 years ago

Need help Arc angles

Anton [14]

The answer may be 26.55 but I might have calculated that wrong. If so, My sincere apologies

4 0

3 years ago