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3 years ago

Im struggling on this can someone explain it to me

Mathematics

1 answer:

AleksandrR [38]3 years ago

6 0

Answer:

B. 31°; 106° and 43°.

Step-by-step explanation:

1) the rule is:

(5x-7)+(3x+1)+(11x-4)=180°;

2) if to solve this equation, then x=10°;

3) if x=10, then after the substitution the answer is 43;31;106.

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A 20-foot flagpole casts a 6-foot Shadow how tall is a nearby building that casts a 30-foot shadow

Viefleur [7K]

The building would be 100ft tall. You have to take 20/6 = ?/30 The difference between 6 and 30 is x5. Then all you have to do is 20x5 and you get 100ft.

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4 years ago

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1 and 2 are supplementary.If m1 = (3x-17) and m2= (5x+21) find the value of x

torisob [31]

Answer:

Step-by-step explanation:

m1 + m2 = 180

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3x + 5x + 21 - 17 = 180

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3 years ago

Last month, Ari's neighbors paid him to take care of their cat when they went on vacation. He spent $5 of his earnings on an

IgorC [24]

Answer:

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Step-by-step explanation:

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I hope this helps :)

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3 years ago

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Find an equation for the line that passes through the points (-5,-6) and (1,3).

navik [9.2K]

Answer:

y=3/3x+3/2

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4 0

3 years ago

Please answer!!

HACTEHA [7]

Answer:

See below

Step-by-step explanation:

$f(x)=3x^2+6x-24\\\\f(x)=3(x^2+2x-8)\\\\f(x)+3(9)=3(x^2+2x-8+9)\\\\f(x)+27=3(x^2+2x+1)\\\\f(x)=3(x+1)^2-27$

Here, we can see that the vertex of the parabola is $(-1,-27)$ when we compare to the equation $y=(x-h)^2+k$ with vertex $(h,k)$ .

A second point you could plot is the y-intercept, when $x=0$ :

$f(0)=3(0+1)^2-27\\\\f(0)=3-27\\\\f(0)=-24$

So, your y-intercept is $(0,-24)$ .

8 0

2 years ago