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4 years ago

8

The temperature in Anchorage, Alaska, was -3°C in the afternoon. After the sun went down,the temperature dropped 6 degrees. What

was the temperature after the sun went down? Enter your answer in the box.

1 answer:

OverLord2011 [107]4 years ago

3 0

Answer: -9°C

Step-by-step explanation: subtracting integers is basically adding the second integer‘s opposite to the first integer

-3 - 6

-3 + -6

= -9

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What is x squared minus 18x equal to negative 32

lisabon 2012 [21]

Answer:

x=16

x=2

Step-by-step explanation:

$x^2-18x=-32\\x^2-18x+32=0\\(x-16)(x-2)=0\\\\x-16=0\\x=16\\\\x-2=0\\x=2$

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3 years ago

Use technology or a z-score table to answer the question.

Drupady [299]

Answer:

C

Step-by-step explanation:

Finding the z-score:

z = (x - μ) / σ

z = (66 - 57) / 9

z = 1

Using a z-score table or calculator:

P(z < 1) = 0.8413

84.13% of 4000 is:

0.8413 (4000) = 3365.2

Rounding up to the nearest whole number, approximately 3366 students will score less than 66. Answer C.

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3 years ago

Fill in the blanks to solve 48 x 8.<br> 48 x 8<br> = 40 eights + 8<br> eights

kozerog [31]

Question is:

Fill in the blanks to solve $\frac{48}{x} =8$ .

Answer:

$x = 6$

Step-by-step explanation:

Given

$\frac{48}{x} =8$

Required

Solve

Multiply both sides by x

$x * \frac{48}{x} =8*x$

$48 =8*x$

Make x the subject

$x = \frac{48}{8}$

$x = 6$

4 0

3 years ago

Simplify: sin^2xcos^2x-cos^2x

shtirl [24]

Answer:

-cos^4(x)

Step-by-step explanation:

Step 1: Use the Pythagorean identity : 1=cos^2(x) + sin^2(x)

1-sin^2(x) = cos^2(x)

-1+sin^2(x) = -cos^2(x)

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Step 2: Factor out common terms cos^2(x)

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Ans: -cos^4(x)

8 0

2 years ago

C - 7 = 12 :((((((((((((((((((((((((((((((((((((((((((((((((((((((

m_a_m_a [10]

C-7=12
C=12+7
Then C= 19

4 0

3 years ago