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3 years ago

When sawyer went to sleep, the temperature outside was -2°

1 answer:

6 0

When Sawyer went to sleep it was -2.

Overnight the temperature dropped -15 degrees more.

-2 + -15 = -17

When Sawyer woke up, the temperature was -17 degrees.

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Help with math homework pls!

Svetach [21]

the correct answer is a^6

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4 years ago

The area of a rectangle is 3,878 square centimeters. If the rectangle has a width of 14 centimeters, what is its length?

astra-53 [7]

Answer:

277 cm

Step-by-step explanation:

$A=l*w\\3,878=l*14\\l=\frac{3,878}{14} \\l=277$

7 0

3 years ago

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Semmy [17]

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3 years ago

Which of the following correctly expresses sin (70) + sin(30) as a product?

JulsSmile [24]

Answer:

2sin50 cos20

Step-by-step explanation:

We need to write sin (70) + sin(30) as a product. The formula used here is :

$\sin A+\sin B=2\sin (\dfrac{A+B}{2})\cos(\dfrac{a-b}{2})$

Here, A = 70 and B = 30

So,

$\sin 70+\sin 30=2\sin (\dfrac{70+30}{2})\cos(\dfrac{70-30}{2})\\\\\sin 70+\sin 30=2\sin 50\cos20$

So, the value of sin (70) + sin(30) is 2sin50 cos20. Hence, the correct option is (c).

7 0

3 years ago

If one of the roots of the quadratice quation x2+kx-12=0is4,what is the value of k?

uysha [10]

<h3>Given Equation:</h3>

$\huge \purple {\rm { {x}^{2} + kx - 12 = 0}}$

<h3>Value:</h3>

$\huge \purple {\rm {x = 4}}$

$\huge \purple {\rm {The \: value \: of \: k.}}$

<h3>Solution:</h3>

$\huge \purple {\rm { {(4)}^{2} + k(4) - 12 = 0}}$

$\huge \purple {\rm {or, \: 16 + 4 k - 12 = 0}}$

$\huge \purple {\rm {or, \: 4k = - 4}}$

$\huge \purple {\rm {or, \: k = \frac{ - 4}{4} = - 1}}$

<h2>Answer:</h2>

$\huge \purple {\sf {The \: value \: of \: k \: is \: -1}}$

3 0

3 years ago

Read 2 more answers