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polet [3.4K]
3 years ago
10

A²+10ab-75b²factorize this plzzz

Mathematics
1 answer:
Blizzard [7]3 years ago
5 0

a^2+10ab-75b^2=\\\\a^2-5ab+15ab-75b^2=\\\\a(a-5b)+15b(a-5b)=\\\\(a+15b)(a-5b)

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Dale deposits $4000 into an account that pays simple interest at a rate of 6% per year. How much interest will he be paid in the
BartSMP [9]

Answer:

$1200

Step-by-step explanation:

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7 0
3 years ago
Which function describes this table of values? x:10,5,0,-5 y:8,4,0,-4
katrin [286]

Answer:

First option

Step-by-step explanation:

You can plug in values and verify.

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3 0
3 years ago
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Please help me with these two, and please explain how to do it. Thank you.
pychu [463]

Answer:

So for number 1 we can use the trigonometry to find out the radius/diameter of the circle then we can use the formula to get the area then we divide by 2 because its half of a circle. So we can get that the cos(68) = 7/x x being the diameter. We then can multiply it by x on both sides. That gives xcos(68) = 7. So then we can do the inverse and get x = cos^-1(68)*7. That gives us approx 18.686 as the diameter, we can divide by 2 and get 9.343. So then we can use the formula which is A = pi*r^2. So that gives us 87.291*pi 274.233. Then if we divide by 2 we get 137.12 that is the answer to first question.

I was able to simplify it into the factored form for number 2.(x-1)^2+(y-2)^2=sqrt(17))^2. Therefore using the circle equation formula we can determine that the center is 1,2. The radius is sqrt(17). We square it and we get 17. So that means that the area is pi*17. Then we get 51.407 as the area.

<h2><u>Answer to 1: 137.12 round to tenth and you get 137.1</u></h2><h2><u></u></h2><h2><u>Answer to 2: </u></h2><h2><u>Center: 1,2 </u></h2><h2><u>Area: 51.407.</u></h2>
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Step-by-step explanation:

The distance was 10 ;-;.

Tip: use desmos for this

4 0
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daser333 [38]
The smallest is 65. The largest is 74.
5 0
3 years ago
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