3 years ago

Take your time to answer this question, I have till tomorrow.

Mathematics

1 answer:

Bad White [126]3 years ago

6 0

it’s the 2 dark purple triangles

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I need a little more help ok

Elenna [48]

Answer:

84+(x+9)=180

Step-by-step explanation:

84º+(x+9)º = 180º, so x+93 = 180, so x=87. Hope this helps!

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3 years ago

Where do the parentheses go and solve 3×14=3×2×7=3×2×7=×7

grin007 [14]

Answer:

I don't think this is a real math equation.

Step-by-step explanation:

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3 years ago

Identify the solutions to the quadratic equation.<br> Check all that apply.<br> x2 + 4x - 21 = 0

Vika [28.1K]

Answer:

C and D

Step-by-step explanation:

(X-3)(X+7)=0

X-3=0 X+7=0

X=3 X=-7

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3 years ago

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What is the slope of a line that contains the points (1 -2) and (4, -3).

Naddika [18.5K]

Answer:

$-\frac{1}{3}$

Step-by-step explanation:

Use the definition of slope:

$m=\frac{y_2-y_1}{x_2-x_1}\\$

Replace the values in the equation and solve:

$m=\frac{-3-(-2)}{4-1} \\m=\frac{-1}{3}\\m=-\frac{1}{3}$

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3 years ago

Solve the equation 5=1/2 v-3 <br><br> v=?

olya-2409 [2.1K]

5=1/2v-3
5=1/2v
+3 +3
8=1/2v
/1/2 /1/2
16=v

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3 years ago