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3 years ago

Some one factor 4x^2+12x+8

2 answers:

8 0

4x²+12x+8
= (2x+4)(2x+2)

To see if the answer it correct, use foil method to multiply those two factor,
4x²+4x+8x+8 = 4x²+12x+8
Thus, it is correct.

Zinaida [17]3 years ago

5 0

It stays the same right

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Jasmine purchased 3 bags of hot cheetos and 2 packs of sour patch kids from the vending machine and spent 5.25. Michael also loa

Charra [1.4K]

Answer:

cost of a bag of hot Cheetos = 0.75 and cost of a pack of sour patch kids = 1.5

Step-by-step explanation:

Let the cost of a bag of hot cheetos be c

Let the cost of a pack of sour patch kids be k

Thus, for Jasmine, the equation will be;

3c + 2k = 5.25 - - - - (eq1)

For Michael, the equation will be;

7c + 3k = 9.75 - - - - - (eq2)

We will use method of elimination to solve this.

Multiply (eq 1) by 3 and (eq 2) by 2 to give;

9c + 6k = 15.75 - - (eq4)

14c + 6k = 19.5 - - -(eq5)

Subtract (eq4) from (eq 5) to get;

5c = 19.5 - 15.75

5c = 3.75

c = 3.75/5

c = 0.75

Put 0.75 for c in (eq 4) to get;

9(0.75) + 6k = 15.75

6.75 + 6k = 15.75

6k = 15.75 - 6.75

6k = 9

k = 9/6

k = 1.5

Thus; cost of a bag of hot Cheetos = 0.75 and cost of a pack of sour patch kids = 1.5

7 0

3 years ago

alissa's monthly budget is $1500. she spends 30% on rent. How much does she spent on the rent? A)$250 B)300 C)450 D)500

I am Lyosha [343]

1500 × 0.30 = $450 (C)

3 0

3 years ago

Read 2 more answers

Word Problem: The Merryweathers want a new square rug for their living room. If the living room is 20 ft x 16 ft, will the squar

forsale [732]

Square root of 289 = 17 ft

so this rug would not fit the room because one side is 16 ft long.

5 0

3 years ago

Don’t mind the writing. Just trying to see if this is right?

LuckyWell [14K]

Answer:

Step-by-step explanation:

Yep you are 100% correct grate job!!

4 0

3 years ago

Read 2 more answers

The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th

marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is $\pi=0.29$

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

$\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224$

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

$z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25$

8 0

3 years ago