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cestrela7 [59]
3 years ago
7

* 20 points * help me please.?????........???!

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
3 0
y=ax^2+bx+c

A parabola is open up if a > 0.
The vertex formula: y=a(x-h)^2+k
(h; k) - the coordinates of the vertex
B.\ y=x^2+10x+24=x^2+2x\cdot5+24=x^2+2x\cdot5+5^2-5^2+24=(x+5)^2-1
Therefore h = -5 < 0
Answer: B. y = x² + 10x + 24.

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Is 20/30 greater than or less than 25/60?
Lemur [1.5K]

20/30 = 0.667

25/60 = 0.4167

therefore 20/30 > 25/60

4 0
3 years ago
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There were 13,531 new products introduced last year. If 87% of the products introduced last year failed to reach their business
kvasek [131]
I'm assuming that since 87% failed, that would the remaining 13% was a success.  If that assumption is correct, than we simply have to take:

.13 * 13531 = 1759.03 products were successful.
7 0
3 years ago
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S_A_V [24]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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Ken's fitness member ship cost $100 to join plus a $25 monthly fee. Ken also used a coupon to get 10% off the monthly fee. What
GREYUIT [131]

The equation that models the total cost is y = 100 + 22.5m

Step-by-step explanation:

Fitness member ship cost = $100

Monthly fee = $25

Discount = 10% on monthly fee

To calculate new monthly fee after discount,  

25 - (25*10%) --> 25 - 2.5 --> $22.5

Number of months = m

Fee in m months = 22.5*m = 22.5m

<u>Equation:</u>

(c) is constant which is the membership fee

(x) is the monthly fee $22.5

(m) is the number of months

(y) is the total cost

So,

y = mx + c

y = m(22.5) + 100

y = 100 + 22.5m

Therefore, the equation that models the total cost is y = 100 + 22.5m

Keyword: Equation

Learn more about equations at

  • brainly.com/question/8955867
  • brainly.com/question/10708697

#LearnwithBrainly

5 0
3 years ago
There are 1,295 students attending a small university.There are 714 women enrolled. What percent of the students are women. Equa
Semenov [28]
If 1295 × p = 714, then you can rearrange the equation to find the percentage.

You have to get p on its own, so you divide 1295 on both sides of the '='.

1295 × p = 714

p = 714 ÷ 1295

p = <span>0.55135135135...

p </span>× 100 = actual percentage

actual percentage = 55.14%
8 0
3 years ago
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