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jeka94
3 years ago
7

Use mental math to evaluate the expression 6(31)+6(4)-6(15)

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0
Okay this is how i did it, 

6(31) + 6(4)  -  6(15)
 186  +  24   -  90
        = 120
Finger [1]3 years ago
3 0
Remember distributive property
a(b+c)=ab+ac
we can ervers it

6(31)+6(4)-6(15)=6(31)+6(4)+6(-15)=6(31+4-15)=6(20)=120
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Nina [5.8K]
The length of the sky lift is 3.387.05 ft
Step-by-step explanation;
By an online search, i found that the sky lift
rises at an angle of 20.75 degrees.
Then we can think on a triangle rectangle, such
that:
One cathetus is 1200ft, this is the opposite
cathetus to the angle of 20.75°
The length of the ski lift would be the
hypotenuse of this triangle rectangle.
Then we can use the relationship:
Sin(a) = opposite cathetus/hypoteuse.
such that:
a = 20.75°
opposite cathetus=1200ft
then:
sin(20.75°) = 1200ft/hypotenuse
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7 0
3 years ago
Evaluate the function f(x) = -4x + 2, when x = -1.
Mkey [24]

Answer:

Option D

Step-by-step explanation:

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3 0
3 years ago
Which of the following represents "the difference between ten and a number is the sum of eight and a number"? 10 - N(8 + N) 8 -
Setler [38]

Answer:

\Huge \boxed{10-N=8+N}

Step-by-step explanation:

<h2>Algebraic expressions</h2>

Difference: should be subtract.

N: should be a number.

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Therefore, the correct answer is 10-N=8+N.

Hope this helps!

7 0
3 years ago
Read 2 more answers
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3241004551 [841]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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Dominik [7]

Answer:

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Step-by-step explanation:

Given equation:

P = w

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Since P = w

19 = w

Therefore,

w = 19

Lamar need 19 weeks before he will be able to play a total of 19 pieces

3 0
3 years ago
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