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vichka [17]
4 years ago
8

Can someone PLEASE answer 7,8,9 PLEASEEE I need answerss!! I will love you FOrEVERR

Mathematics
1 answer:
m_a_m_a [10]4 years ago
6 0
7) 3; distributive
8) 4; -5x and 9x^2
9) 1; twice the sum of a number and four
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Order the distances from least to greatest:
Luba_88 [7]

Step-by-step explanation:

5.5

23/4 =5.75

sqrt 28 =5.29

5 1/2 = 5.5

so from least to greatest will be :

sqrt 28 - 5.5 and 5 1/2 then 23/4

7 0
3 years ago
What is (10y+6) (8y-6) ?
ANEK [815]

Answer:

y = 3/4 or y = -3/5

Step-by-step explanation:

Solve for y:

(8 y - 6) (10 y + 6) = 0

Hint: | Find the roots of each term in the product separately.

Split into two equations:

8 y - 6 = 0 or 10 y + 6 = 0

Hint: | Look at the first equation: Factor the left hand side.

Factor constant terms from the left hand side:

2 (4 y - 3) = 0 or 10 y + 6 = 0

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by 2:

4 y - 3 = 0 or 10 y + 6 = 0

Hint: | Isolate terms with y to the left hand side.

Add 3 to both sides:

4 y = 3 or 10 y + 6 = 0

Hint: | Solve for y.

Divide both sides by 4:

y = 3/4 or 10 y + 6 = 0

Hint: | Look at the second equation: Factor the left hand side.

Factor constant terms from the left hand side:

y = 3/4 or 2 (5 y + 3) = 0

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides by 2:

y = 3/4 or 5 y + 3 = 0

Hint: | Isolate terms with y to the left hand side.

Subtract 3 from both sides:

y = 3/4 or 5 y = -3

Hint: | Solve for y.

Divide both sides by 5:

Answer: y = 3/4 or y = -3/5

4 0
4 years ago
Help! ASAP ONLY IF YOU KNOW ty!
agasfer [191]

Answer: 115 degrees

Step-by-step explanation:

Since a kite has one pair of opposite angles which are congruent, W and Y must be congruent because X and Z are not.

The sum of the angles in any quadrilateral is 360 degrees. We know two of the angles as 90 degrees and 40 degrees, so the sum of the other two angles must be 360-90-40 = 230 degrees.

We know that W and Y must be equal so each of them is equal to 230/2 degrees = 115 degrees.

4 0
3 years ago
How long would nate have to swim to.lose 3 pounds if swimming uses 100 calories in 15 minutes
lutik1710 [3]

Answer:

Step-by-step explanation:

3,500 calories = 1 lb, so to loose 3 lbs

3,500 x 3 = 10,500

10,500  divided by 100 = 105 minutes

105 minutes, or 1.75 hours

Hope this helps ;/

5 0
4 years ago
Please help me on the last one :D
Sindrei [870]

Answer: A=1/4 πd^2

Plug diameter into D solve for A

Step-by-step explanation:

Formula for area of a circle. Area = 1/4 pie•diameter squared

8 0
3 years ago
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