4 years ago

What is the measure of a right Angle

Mathematics

2 answers:

NISA [10]4 years ago

7 0

90 degrees..........................................

mariarad [96]4 years ago

4 0

A right angles measures 90 degrees

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Solve for the roots in simplest form by completing the square 6x^2+120x+2070=0

Kitty [74]

Answer:

Step-by-step explanation:

First, we can divide out the common factor, 6

$6x^2 + 120x + 2070 = 0\\x^2 + 20x + 345 = 0\\$

Now we complete the square

$(x^2 + 20x + (\frac{20}{2})^2) + 345 - (\frac{20}{2})^2\\(x^2 + 20x + 100) + 345 - 100\\(x+10)^2 + 245\\$

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3 years ago

Suppose j and k vary inversely, and k=3 when j=12. Find k when j=18. 2 4 24 36

dolphi86 [110]

Answer:

k = 2.

Step-by-step explanation:

j = c/k where c is a constant.

When k = 3, j = 12 so

12 = c/3

c = 36.

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When j = 18

18 = 36 / k

So 18k = 36

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3 years ago

Simplify the expression using the exponent properties 5 ^ −4 x 5^ −3

vodka [1.7K]

Answer:

$5^{-7}$ or 0.0000128

Step-by-step explanation:

Add the exponents together

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4 years ago

Harry earns 5% commission on his total sales. What was his commission if he had sales of $9,250?

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5% as a decimal is = 0.05
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3 years ago

Awarding branliest for first correct answer

sineoko [7]

Answer:

Step-by-step explanation:

x² - y² = (x + y)(x-y)

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4 years ago