How many questions would I have to miss on a 25 question test to get 88% ?

Answers

Answer 1
Answer: let's start with the question, how many questions do you need to get 88%?

so were are looking for
?/25 = 88% and 88% is also 0.88 so we can multiply 25 by 0.88

we get 22


But this doesn't here. the question asks us how many mistakes do you need. you can just subtract 22 from 25

25-22= 3
you need 3 misses to get 88%

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Quadratic graph find a and b

Answers

Answers:  a = -9 and b = -2

Reason

The template y = (x+a)^2 + b is very close to the vertex form y = c(x-h)^2+k where the vertex is (h,k). The vertex represents either the highest point or the lowest point on the parabola (depending if the parabola opens downward or upward).

In this case h = 9 and k = -2. Also, c = 1.

So we go from y = c(x-h)^2+k to y = 1(x-9)^2+(-2) which can be rewritten as y = (x+(-9))^2+(-2)

Compare that with y = (x+a)^2+b and you'll find that a = -9 and b = -2

I don't know how i would even go about this question without more information

Answers

Because the trapezoid is isosceles, the desired angle is equal to 180-31=149.

The area of a rectangle is represented by 5x^2+19x+12. What is the length?

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5x^2+19x+12=5x^2+15x+4x+12=5x(x+3)+4(x+3)\n\n=(x+3)(5x+4)\n\nAnswer:x+3\ *\ 5x+4

Is 9/12. Bigger than 3/4?

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No it is the same and u will tell is u simplify 9/12 down 
No,9/12 is equal to 3/4 because when you find the LCM of the number it is three then you multiply the number to 3/4 and you get 9/12.



or 9/12 is = to 3/4

Sam has 12 black and white photos and 18 color photos.he wants to put the photos in equal rows so each row has either black and white photos only or color photos only. in how many rows can Sam arrange the photos

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The question is asking us to determine the number of rows in which Sam can arrange his 12 black and white and 18 color photos. Sam wants to put them in the equal rows so that each row has either black and white photos only or color photos only. We have to find the GCF ( the Greatest Common Factor ) of 18 and 12. GCF ( 18, 12 ) = 6. So there should be 6 photos in each row if they have to be equal ( the equal number of photos in every row ). 18 = 6 * 3 and 12 = 6 * 2. Therefore the number of the rows is : 3 + 2 = 5. Answer: Sam can arrange his photos in 5 rows.

Answer:


Step-by-step explanation:

First you have to find the GCF (greatest common factor) and the GCF is 6

Then you have to multiply 3×6 = 18, 2×6 = 12

Next add 3 + 2 = 5 because I added the first digits of the multiplying thinge

Write it like this (if you want):

Sam can arrange his photos in 5 rows

Rational algebraic expression is an expression that is the ratio of two​

Answers

Answer:

A rational expression is a ratio of two polynomials. The domain of a rational expression is all real numbers except those that make the denominator equal to zero.

Step-by-step explanation: