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Firlakuza [10]
3 years ago
9

How to factor y=x^2-4x-45

Mathematics
1 answer:
natulia [17]3 years ago
6 0

Answer:

(x+5)(x-9)

Step-by-step explanation:

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This year Martin's income is 1/4 greater than his income from Last year. If s represents his income from last year, what is his
erma4kov [3.2K]

Answer: 1 1/4s or 1.25s

Step-by-step explanation:

From the question, we are informed that this year Martin's income is 1/4 greater than his income from last year. We are further told that his income from last year is represented by s.

Therefore, hus income this year will be:

= s + (1/4 × s)

= s + 1/4s

= 1 1/4s or 1.25s

5 0
2 years ago
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If Amelia would like to double her money in twelve years, how much interest does she need to earn? 6 percent 12 percent 10 perce
sveticcg [70]
We can assign the value "2x" as the amount of money that Amelia which to achieve in twelve years.
So, his initial money is X.
We can try each percent to test if it could double the amount in 12 years.
x+0.06*12years*x=1.72X
x+0.12*12*x=1.44x
x+0.1*12*x=2.2x
x+0.166*12*x=2.992x

Therefore, the answer is 10 percent.
4 0
3 years ago
88π<br> Rational or irrational <br> Good answer i mark brainlest
vladimir1956 [14]

Answer:

Irrational

Step-by-step explanation:

The number is irrational because when you convert it to decimal form, you get 276.4601... a repeating decimal that goes on and on.

6 0
2 years ago
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PLEASE HELP, ASAP (PLEASE, I MEAN THAT AS NICE AS POSSIBLE) GEOMTRY BTW
Yuri [45]

The value of angle x is 127 degrees.

<h3>How to find angles?</h3>

The angle x can be found as follows:

Angle on a straight line is 180 degrees.

Therefore, the sum of 53 degrees and x degrees is 180 degrees.

Therefore,

53 + x = 180°(sum of angles on a straight line)

subtract 53 from both sides of the equation

53 - 53 + x = 180 - 53

x = 127°

Therefore, the angle of x is 127 degrees.

learn more on angles here: brainly.com/question/7153708

#SPJ1

7 0
1 year ago
Y=2/3(x-5)^2
Anvisha [2.4K]

Answer:

  see below

Step-by-step explanation:

The graph opens upward if the sign of the squared term is positive. If that sign is negative, the graph opens downward. The first three equations open upward; the last opens downward.

The line of symmetry is the value of x that makes the squared term zero. Here, that is x=5 for all equations.

<u>y=2/3(x-5)^2</u>:  A, D

<u>y=1/2(x-5)^2</u>:  A, D

<u>y=3/4(x-5)^2</u>:  A, D

<u>y=-4(x-5)^2</u>:  B, D

8 0
3 years ago
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