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olga2289 [7]
3 years ago
14

Which of the following expressions shows how to rewrite 4 - 5 using the addtive inverse and displays the expression correctly on

a number line

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
5 0

Answer: 4 - 5 = 4 + (-5) = -1

Step-by-step explanation:  You have to make the 5 into a negative number using parenthesis and do the math.

aev [14]3 years ago
3 0

Answer:

4+(-5)

Step-by-step explanation:

Here is the number line

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Zach wants to build a slanted skateboard ramp. He knows he wants the ramp to form a 15 degrees angle with the ground and be 4 fe
Fynjy0 [20]

Answer: The ramp would be 15.5 feet long.

Step-by-step explanation: Please refer to the attached diagram for details.

Angle C shows the angle to be formed by the ramp from the ground, which is 15 degrees. Also, from the ground, it’s going to be four feet tall, which is line AB. The top of the ramp is point A, which makes line AC the entire length of the ramp. Since we have a reference angle (angle C) and two sides, the opposite and the hypotenuse, we shall apply the trigonometric ratio.

SinC = opposite/hypotenuse

Sin 15 = 4/b

By cross multiplication we now have

b = 4/Sin15

b = 4/0.2588

b = 15.4599

Approximately b = 15.5

Therefore the length of the ramp would be 15.5 feet

6 0
3 years ago
20 minute deadline. right answers only.
emmainna [20.7K]
The answer has to be 1
4 0
3 years ago
Solve for s in terms of q,r,and t. r=s+q-t
IgorC [24]
Answer; r=s+q-t —-> S=t-q+r
5 0
2 years ago
Find the area of the parallelogram shown below.60 squ
ArbitrLikvidat [17]

Answer:

A

Step-by-step explanation:

The area for a parallelogram is given by the formula:

A=bh

Where b is the base length and h is the vertical height.

The base length is 6 and the height is 10 (if you flip the figure 90 degrees). So:

A=6(10)

Multiply:

A=60\text{ units}^2

Our answer is A.

And we're done!

7 0
3 years ago
7y - 2y + 8 = 19 + 4y
Alex777 [14]

7y - 2y + 8 = 19 + 4y

7y - 2y - 4y = 19 - 8

1y = 19 - 8

1y = 11

Ans is y = 11
6 0
3 years ago
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