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ikadub [295]
3 years ago
15

Rewrite in simplest terms: 3(2p - 5) - 6p

Mathematics
1 answer:
mylen [45]3 years ago
7 0

-15

Reason:

First, use the distributive property

3(2p - 5) - 6p = 6p - 15 - 6p = -15

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Which numbers are opposites? 23 and 32 58 and −85 34 and −34 I don't know.
Lynna [10]

Answer:

23 and 32, 58 and -85

7 0
2 years ago
Write expression as a sine or cosine of an angle.<br>cos 94° cos 18° + sin 94° sin 18° ​
MArishka [77]
<h3>Answer:  cos(76)</h3>

=========================================================

Explanation:

The original expression is of the pattern cos cos + sin sin. This pattern matches the second identity in the hint. Specifically, we'll say the following:

cos(A - B) = cos(A)cos(B) + sin(A)sin(B)

cos(A)cos(B) + sin(A)sin(B) = cos(A - B)

cos(94)cos(18) + sin(94)sin(18) = cos(94 - 18)

cos(94)cos(18) + sin(94)sin(18) = cos(76)

----------

We can verify this by use of a calculator. Make sure your calculator is in degree mode.

  • cos(94)cos(18) + sin(94)sin(18) = 0.24192
  • cos(76) = 0.24192

Both expressions give the same decimal approximation, so this helps confirm the two expressions are equal. You could also use the idea that if x = y, then x-y = 0. Through this method, you'll subtract the left and right hand sides and you should get (very close to) zero.

6 0
2 years ago
Jocelyn estimates that a piece of wood measures 5.5 cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn's
morpeh [17]
The percent error is -2.1352% of Jocelyn's estimate. May I have Brainless
8 0
3 years ago
Read 2 more answers
An equation for annealing soda-lime glass is y(t)=−14t+500 , where t is time in minutes and y is the temperature of the glass in
beks73 [17]

An equation for annealing soda-lime glass is y(t)=−14t+500 , where t is time in minutes and y is the temperature of the glass in ˚C.

To find the y intercept , we plug in 0 for t

y intercept is the value , where time is 0 minutes

so we plug in 0 for t  and find out y(0)

y(t)=−14t+500

y(0)=−14(0)+500 = 500

When t=0 , the value of y = 500

So , y intercept is (0,500)


4 0
3 years ago
Convert the quadratic equation y=−4(x−3)(2x+4) from factored form to standard form.
Katyanochek1 [597]

Answer:

y = -8x² + 8x + 48

Step-by-step explanation:

y= −4(x−3)(2x+4)

y = -8x² + 8x + 48

4 0
3 years ago
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