2 years ago

-54/87 simplified to a fraction

Mathematics

1 answer:

Sauron [17]2 years ago

8 0

Answer:

-18/29

Step-by-step explanation:

54 ÷ 3 = 18 - numerator

84 ÷ 3 = 29 - denominator

-54/84 = -18/29

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The temperature outside was -12 °. The temperature dropped 3 degrees. What is the new temperature?

tigry1 [53]

Answer:

-15

Step-by-step explanation:

the new temperature since it went down

-12-3= -15

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3 years ago

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Please help: In Δ ABC, sin A=88, sin B=42, and a =17, find the length of b.

iren2701 [21]

Answer:

Step-by-step explanation:

Use the law of sines.

$\frac{sin A}{a} = \frac{sin B}{b} \\$

Plug values in.

$\frac{sin88}{17} = \frac{sin42}{b}\\$

Cross multiply.

$bsin88 = 17sin42\\b = 11.38$

Hope that helps.

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3 years ago

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Please help ASAP !!!

enot [183]

Answer: x=3

Step-by-step explanation:

To solve this problem you must apply the proccedure shown below:

- Multiply both sides of the equation by 3:

$3(2x-3)=3(\frac{x^2}{3})\\6x-9=x^{2}$

- Now you must make the equation equal to zero as following:

$6x-9=x^{2}\\x^{2}-6x+9=0$

- Factor it, as you can see below. Therefore, you obtain the following result:

$(x-3)(x-3)=0\\(x-3)^2=0\\x=3$

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3 years ago

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The correct simplification of (7x3y3)2.

anyanavicka [17]

49 x^6 y^6
Assuming the 2 is an exponent.
I had the same question.
Just square everything.
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3 years ago

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What is the value of the expression f(–3)? -15 3 -3 15

arlik [135]

Answer:

Option A, -15

Step-by-step explanation:

Step 1: Look at the function that needs to be outputted when x = -3

Since x = -3, that means it falls into the first category of x ≤ -3

Step 2: Carry out the instructions

The function for the first category is $-x^{2} + 2x$

$f(-3) =-(-3)^{2}+2(-3)$

$f(-3) = -(9) - 6$

$f(-3) = -15$

Answer: Option A, -15

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2 years ago