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3 years ago

Please Help! Will mark brainiest. Write the algebraic expression that matches each graph:

Mathematics

1 answer:

natka813 [3]3 years ago

3 0

Looks like y=|x|, same slopes of ±1

We need to shift it right two, that's y=|x-2|

Then we need to shift it down two, that's y=|x-2|-2

Answer: y=|x-2|-2

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What is 140.23 < 140.203 is the answer true or false?

Nitella [24]

Answer:

False

Step-by-step explanation:

140.23 bigger (>) than 140.203

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3 years ago

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Evaluate the following polynomial. (32mn2 + 50m2n) - (10mn2 - 16m2n + 64).

zaharov [31]

I think the answer is 22mn2+66m2n-64 since there are no more like terms

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4 years ago

Explain how to solve 2^x + 1 = 9 using the change of base formula log base b of y equals log y over log b. Include the solution

elena55 [62]

Answer:

$x=2.170$

Step-by-step explanation:

The given equation is $2^{x+1}=9$ .

We take logarithm of both sides to base 2 to get:

$\log_2(2^{x+1})=\log_29$

Apply the power rule of logarithms to get:

$x+1=\log_29$

We now apply the change of base formula:

$x+1=\frac{\log_{10}9}{\log_{10}2}$

$x+1=\frac{0.9542}{0.3010}$

$x+1=3.1701$

$x=3.1701-1$

$x=2.1701$

To the nearest thousandth, $x=2.170$

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3 years ago

HELP! I'm bad at math!!

Nikolay [14]

Answer:

6÷1/4= 24

8÷1/3= 24

1/4÷3= 1/12

3÷1/2= 6

6÷3/5= 10

hope this helped :)

Step-by-step explanation:

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3 years ago

Triangle A B C is shown. Angle A C B is a right angle. The length of the hypotenuse is 20.

kherson [118]

Answer:

The length of BC is needed because it is the side opposite ∠A.

Step-by-step explanation:

Given the right angles triangle as shown in the attachment, we can get sin(A) without using Pythagoras theorem. Instead we will use SOH CAH TOA trigonometry identity.

According to SOH:

Sin(A) = Opposite/Hypotenuse

Sin(A) = |BC|/|AB|

Opposite side of the triangle is the side facing ∠A.

Based on the formula, we will need to get the opposite side of the triangle which is length BC for us to be able to determine sinA since the hypotenuse is given.

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3 years ago

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