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adoni [48]
3 years ago
8

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Mathematics
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

y = 4(x + 2)^2 - 20.

or in standard form it is

y = 4x^2+ 16x - 4.

Step-by-step explanation:

The equation in vertex form will be:

y = a(x + 2)^2 - 20   where a is some constant.

The y-intercept is (0, -12) so:

-12 = a(0 + 2) - 20

2a = -12 + 20 = 8

a = 4.

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Luke’s dad need 165 for a new suitcase. If he saves an equal amount for 3 weeks, how much does save each week?
goldenfox [79]
This is easy the answers 55 you just need to divide

165 ÷ 3 = ?

Step 1: Look at the multiplications of three can you make a group with an answer close to one? if not look at 16 and the multiplications of three is there a number close to 16 or exact?

Step 2: In this case 5 × 3 = 15, so 15 is close to 16.


Step 3: Now you need to subtract 16 and 15, 16 - 15 = 1.


Step 4: Like there's no number that has 1 as a answer, you need to lower the 5.


Step 5: Once you lower the five it makes 15 in the in the multiplications of three is there something close to 15 or exact? Yes there is a number that can make 15, it's 5 × 3 so 15 take away 15 makes zero so your answer will be simple, 55.

So Luke's dad needs to save $55 each week.

(sorry if their is spelling errors)
4 0
3 years ago
A lottery game has balls numbered 1 through 15. What is the probability of selecting an even numbered ball or a 13?
LiRa [457]

Answer:

8 / 15

Step-by-step explanation:

Sample space = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}

Required outcome :

Even numbers = (2, 4, 6, 8, 10, 12, 14) or 13

Total required outcomes = 8

Probability = required outcome / Total possible outcomes

P(even number or 13) = 8 / 15

4 0
3 years ago
Maria received a $90 gift card for a coffee store. She used in buying some coffee that costs $7.81 per pound. After buying the c
sergiy2304 [10]

Answer:

Im not sure but im going to try

Step-by-step explanation:

First you subtract $7.81 from $90 until you get to $50.95 and then you count how many times you subtract and your answer is 5 pounds of coffee.

5 0
3 years ago
Read 2 more answers
Which values of a and b in the exponential function y = a times b^x would result in the following graph
harina [27]

Answer:

a

Step-by-step explanation:

i just took the test

6 0
3 years ago
Sum is 9 product is 8
bekas [8.4K]
The answer is eight and one.
Sum: 8 + 1=9
Product:8*1=8
5 0
3 years ago
Read 2 more answers
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