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sergey [27]
3 years ago
15

What is the factored form of 4x2 + 12x + 5? A. (2x + 4)(2x + 3) B. (4x + 5)(x + 1) C. (2x + 1)(2x + 5) D. (4x + 1)(x + 5)

Mathematics
2 answers:
skad [1K]3 years ago
8 0
Using the calculator to solve the quadratic equation given above, the roots that can be obtained is -1/2 and -5/2. Hence the answer should be C. Another way to solve this is to get the factors such that the sum is equal to the second term and the third term is the product of the factors
Ivanshal [37]3 years ago
6 0
4x^2 + 12x + 5 =
(2x + 1)(2x + 5)
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Ok needed asap and likee go in order
Ksenya-84 [330]

Answer:

4. A

5. B

6. C

Step-by-step explanation:

4.

In total there are 12 possible shakes.

The combinations are:

ice cream - pineapple - peanuts

ice cream - pineapple - granola

ice cream - strawberry - peanuts

ice cream - strawberry - granola

ice cream - banana - peanuts

ice cream - banana - granola

yogurt - pineapple - peanuts

yogurt - pineapple - granola

yogurt - strawberry - peanuts

yogurt - strawberry - granola

yogurt - banana - peanuts

yogurt - banana - granola

Therefore the chance is 1/12 for the combination ice cream, pineapple and granola.

5.

To find the total possible outcomes, count the last value in the tree diagram. There are 8 possible outcomes.

6.

Find the total number of balls by adding each of the colours.

1 + 3 + 8 = 12

There is 1 red ball. The probability of getting a red ball out of the total is 1/12.

The probability in words ordered in comparison to the fractions:

impossible-----unlikely------------likely-------------certain

0/12------------ 1/12--5/12--------7/12---11/12----------12/12

Since 1/12 is between 1/12 and 5/12, the possibility is unlikely.

8 0
4 years ago
The measures of the three angles whose sum is 120° are in the extended ratio 2:5:8 find the exact angle measures
hoa [83]

Answer:

ans is 16°,40°and64°

let ratio be 2x,5xand 8x

Step-by-step explanation:

their sum=120°

2x+5x+8x=120

15x=120

x=120/15=8°

2x=2×8=16°

5x=5×8=40°

8x=8×8=64°

7 0
3 years ago
The measure of the perimeter of a triangle is 37s+ 42. It is known that two of the sides of the triangle hare measures of 14s+ 1
ale4655 [162]

Answer:

13s+6

Step-by-step explanation:

the length of the third side =

37s+42- (14s+16+10s+20) =

37s+42 - 24s -36 =

13s+6

7 0
3 years ago
The total cost of an item including sales tax is directly proportional to its price. If the total cost of a $32 item is $33.60 ,
pav-90 [236]
Let the total cost of the item be represented by C and the price be represented by P, then given that t<span>he total cost of an item including sales tax is directly proportional to its price, thus</span>

C\propto P \\  \\ \Rightarrow C=kP

where k is a constant.

Given that <span>the total cost of a $32 item is $33.60, thus

33.60=32k \\  \\ \Rightarrow k= \frac{33.60}{32} =1.05

Therefore, the total cost on a $55 item is given by

C=1.05\times55=\$57.75</span>
3 0
4 years ago
Can there be more than,less than,or exactly one cup of water in a kitchen sink?
yulyashka [42]

Hello! Welcome to Brainly!

There would be more than.

A kitchen sink can hold approximately nine gallons of water.

Hope this helps you out fam!

~theLocoCoco

4 0
3 years ago
Read 2 more answers
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