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lidiya [134]
3 years ago
6

REQUIRE URGENT ASSISTANCE like really really, please help

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
7 0

Answer:

cant really help you on #2 but #1 is D

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Write the quadratic equation whose roots are 3 and -1, and whose leading coefficient is 5.
Assoli18 [71]

Answer:

5x² - 10x - 15 = 0

Step-by-step explanation:

Given that the roots are x = 3 and x = - 1, then the factors are

(x - 3) and (x + 1) and the quadratic is the product of the factors, that is

f(x) = a(x - 3)(x + 1) ← a is a multiplier

Here a = 5, thus

f(x) = 5(x - 3)(x + 1) ← expand factors using FOIL

     = 5(x² - 2x - 3) ← distribute parenthesis by 5

     = 5x² - 10x - 15

Thus equation is

5x² - 10x - 15 = 0

6 0
3 years ago
Which function has an inverse that is also a function?
natali 33 [55]

Answer:

Which function has an inverse that is also a function

7 0
2 years ago
Can someone help me !! And PLEASE SHOW YOUR WORK
Alona [7]
The formula for the area of a trapezoid is A=1/2(base one+base two)h
All you have to do is find the base one, base two, and height using the given information and then plug it into the equation.
7 0
3 years ago
What is the answer?​
Mrrafil [7]

Answer:

53°

Step-by-step explanation:

The angle that measures 143 is vertical to the right angle and the ? angle.

Vertical angles have the same measure. <? + <90 = <143

So do 143 - 90 = 53

So the ? angle = 53

Hope this helps ya!!

6 0
3 years ago
The ratio of boys to girls in WIN is 2:3. If there are 8 boys how many girls are there
IRISSAK [1]

If there is 8 boys then there is 12 girls because 2x4=8 boys so 3x4=12 girls.

4 0
2 years ago
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