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andrew11 [14]
3 years ago
9

Please help with these three math questions!!!! I really need it

Mathematics
2 answers:
nikdorinn [45]3 years ago
4 0
1. is 9
and the other ones i dont really know

BARSIC [14]3 years ago
3 0
2.  replace the x by 2  and work it out 
= 7(2) - 5

3.  that cost $7.50 each  and $0.25 is taken off the cost of  any number you perchasse

so it 0.75n - 0.25

4.  Hint  the  second  (y) values are obtained from the first (x) values by multiplying  by 2
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Find the Unit Rate.<br> The Johnson family traveled 840 miles in 15 hours.
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Heya!

Here's your answer!!

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Two sides of a trapezoidal are 25 meters. The third side is 40 meters. The fourth side is 20 meters shorter than the longest sid
Aloiza [94]

Answer:

110

Step-by-step explanation:

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3 years ago
Find the area of the right triangle. If necessary, round to the nearest tenth.
Ne4ueva [31]

Answer:

B - 150 yd

Step-by-step explanation:

Obviously the first step is to find the missing measurement. To do this, you use the Pythagorean theorem; <em>a² + b² = c².</em>

In this case, let's label the the missing side A, the height B, and the hypotenuse C.

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The next step is to subtract 15² (225) from 25² (625), which will give you the result of X².

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Now you know X² = 400, you can find the square root of 400 to give you the length of the triangle.

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<u>The missing length of the triangle is 20 yards. </u>

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Or,

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<u>And there's your answer. Don't forget to add the units.</u>

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<h2>Hope this helped.</h2>
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3 years ago
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