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3 years ago

NEED HELP! WILL MARK BRAINLIEST FOR IF ANSWERED ALL!

Mathematics

2 answers:

dexar [7]3 years ago

5 0

1. X less than of equal to (<_) -10

2. 2y > -5/2

Mila [183]3 years ago

5 0

Step-by-step explanation:

1) x≤-10

2) 2y>-5/2

y<(-5/2)/2

3)no because they are equal

4)no because we get 11 and it's not≤-9

5)yes, we get -2≥-3

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If the zeros of a quadratic equation are 7 and - 4 , what would be the factors?

noname [10]

Answer:

(x - 7) , (x + 4)

Step-by-step explanation:

given the zeros of a quadratic equation x = a and x = b , then

the corresponding factors are (x - a) and (x - b)

here the zeros are x = 7 and x = - 4 then factors are

(x - 7) and (x - (- 4) ) , that is

(x - 7) and (x + 4)

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2 years ago

Given the following information:

Leno4ka [110]

Answer:

$14,112

Step-by-step explanation:

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3 years ago

Each second for 7 seconds, an elevator descends 5 feet. Find the total change in elevation

Tresset [83]

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4 years ago

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4) A garden is in the shape of a square with a perimeter of

Leni [432]

Answer:

It costs $154.88 to build the fences.

Step-by-step explanation:

Perimeter of square = $4 \times Side$

We are given that A garden is in the shape of a square with a perimeter of 56 feet.

So, $4 \times side = 56$

Side = $\frac{56}{4}=14 feet$

So, Side of square park = 14 feet

One fence is around the perimeter of the garden, whereas the second fence is 2 feet from the first fence on the outside.

Outer length = 14+2+2=18 feet

So, Perimeter of outer fence = $4 \times side = 4 \times 18 = 72 feet$

Cost of fencing 1 foot = $1.21

Cost of fencing 56 feet = $56 \times 1.21=67.76$

Cost of fencing 72 feet = $72 \times 1.21=87.12$

Total cost = 67.76+87.12=154.88

Hence It costs $154.88 to build the fences.

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3 years ago

Solve for r 4r + 8 = 7.2 + 5r

sineoko [7]

Answer: r=0.8

Step-by-step explanation:

4r + 8 = 7.2 + 5r

8=7.2+r

8-7.2=r

0.8=r

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3 years ago

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