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Dvinal [7]
3 years ago
7

Is anyone bored, and just wants to play some imessage games?solve for x: x2 + 9x + 14 = 0

Mathematics
1 answer:
Hitman42 [59]3 years ago
7 0

Answer:

x = - 7, x = - 2

Step-by-step explanation:

Given

x² + 9x + 14 = 0

Consider the factors of the constant term (+ 14) which sum to give the coefficient of the x- term (+ 9)

The factors are + 7 and + 2, since

7 × 2 = 14 and 7 + 2 = 9, thus

(x + 7)(x + 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x + 2 = 0 ⇒ x = - 2

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Find the solution to the system of equations y=−7x+3y=−x−3​
babunello [35]

Answer:

x=1, y=-4. (1, -4).

Step-by-step explanation:

y=-7x+3

y=-x-3

-------------

-7x+3=-x-3

-7x-(-x)+3=-3

-7x+x=-3-3

-6x=-6

6x=6

x=6/6

x=1

y=-1-3=-4

3 0
3 years ago
Mark is in training for a bicycle race. He needs to ride 50 km a week as part of his training. He rode 18.23 km on Monday and 13
konstantin123 [22]
The answer is B-about 18km


This is because you round 18.23 to 18km


then you round 13.94 to 14km


you add these rounded numbers together


you take it away from 50km


the answer would then me 18km


but it be ABOUT because that was only a rough estimate because it was rounded
5 0
3 years ago
Read 2 more answers
A survey is taken among customers of a fast-food restaurant to determine preference for hamburger or chicken. Of 200 respondents
kicyunya [14]

Answer:

                          Hamburger       Chicken

Adults                    65                        60         125

children                 55                        20          75

                             120                        80         200

a)What is the probability that a randomly selected individual is an adult?

Total no. of adults = 125

Total no. of people  200

The probability that a randomly selected individual is an adult = \frac{125}{200}=0.625

b) What is the probability that a randomly selected individual is a child and prefers chicken?

No. of child prefers chicken = 20

The probability that a randomly selected individual is a child and prefers chicken= \frac{20}{200}=0.1

c)Given the person is a child, what is the probability that this child prefers a hamburger?

No. of children prefer hamburger = 55

No. of child = 75

The probability that this child prefers a hamburger= \frac{35}{75}=0.46

d) Assume we know that a person has ordered chicken, what is the probability that this individual is an adult?

No. of adults prefer chicken = 60

No. of total people like chicken = 80

A person has ordered chicken, the probability that this individual is an adult= \frac{60}{80}=0.75

3 0
3 years ago
The chart below shows conversion between gallons and fluid ounces.
Ainat [17]
<h3>Answer:  768</h3>

======================================================

Explanation:

To go from gallons to fluid ounces (abbreviation fl oz), we multiply by 128

For example, 2 gallons becomes 2*128 = 256 fl oz as shown in the table.

Another example: 3 gallons = 3*128 = 384 fl oz.

Therefore, 6 gallons would be 6*128 = <u>768</u> fl oz.

To go in reverse, from fl oz to gallons, we divide by 128.

5 0
1 year ago
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Can someone help me with number one
kherson [118]
The relationship is not proportional because the boys and girls are in different grades and they are in different activities.
5 0
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