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3 years ago

Question 19 is already answered I really only need question 20 answered :))

Mathematics

2 answers:

Whitepunk [10]3 years ago

8 0

Answer:

110

Step-by-step explanation:

I would put 7c and 9t because c would mean you're putting car down for both numbers on the first question...

7c + 9t

7(8) + 9(6)

56 + 54

110

deff fn [24]3 years ago

7 0

110, because you multiply 7x8 then 9x6. after that add up the sums of the others

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Answer: i need a pic

Step-by-step explanation:

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3 years ago

Factor this polynomial. -3x^2-5x-2

vovikov84 [41]

Answer:

$-(3x+2)(x+1)$

Step-by-step explanation:

Lets factor the trinomial $-3x^2-5x-2$ step-by-step:

Step 1. Since all the terms are negative, we can factor -1 out

$-3x^2-5x-2=-1(3x^2+5x+2)$

Step 2. Split the middle term of $3x^2+5x+2$

$5x=3x+2x$ , so $3^2+5x+2=3x^{2} +3x+2x+2$

Step 3. Group common terms

$(3x^2+2x)+(3x+2)$

Step 4. Factor each parentheses

$x(3x+2)+(3x+2)$

Step 5. Factor the common binomial

$(3x+2)(x+1)$

Now, we can put it all together:

$-3x^2-5x-2=-(3x+2)(x+1)$

3 0

3 years ago

1.Solve the equation 2x^2+10x=0 . Check your solution(s) and state the final solution set.

Setler [38]

2x^2 + 10x = 0

we can take out x from both terms and we get:
x(2x + 10) = 0

now either x has to be equal to 0 or 2x + 10 has to be equal to zero in order for equation to be equal to 0.

one solution is x=0 as stated above

other is:
2x + 10 = 0
2x = -10
x = -10/2 = -5

Answers are x=0 and x = -5.

3 0

3 years ago

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kati45 [8]

Answer:

18,20,22

Step-by-step explanation:

18,20,22 are consecutive even numbers that sum to equal 60.

6 0

3 years ago

Read 2 more answers

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Delicious77 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Question 19 is already answered I really only need question 20 answered :))￼

Question 19 is already answered I really only need question 20 answered :))