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2 years ago

PLEASE HELPPPP ILL MARK BRAINLIEST

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

7 0

Coordinate 1 is : (0,3)
Coordinate 2 is : (-4,-2)
Coordinate 3 is : (-1,-5)
Coordinate 4 is (4,0)
Hope this helps!

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The dolphin show was attended by 445 teenagers. Out of these, 136 were girls. What was the percentage of boys in the audience?

Luden [163]

Answer:

69.44%

Step-by-step explanation:

136 girls. 309 boys

309/445 = .69438

.69438 * 100 = 69.44%

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3 years ago

A box has a volume of 192 cubic inches, a length that is twice as long as its width, and a height that is 2 inches greater than

Volgvan

Answer:

Length = 8 inches

Width = 4 inches

Height = 6 inches

Step-by-step explanation:

Volume of the box = 192 cubic inches

Volume of a box = length × width × height

Let

Width = x

Length = 2x

Height = x + 2

Volume of a box = length × width × height

192 = 2x * x * (x + 2)

192 = 2x^2 (x + 2)

192 = 2x^3 + 4x^2

Divide through by 2

96 = x^3 + 2x^2

Subtract 96 from both sides

x ^3 + 2x^2 - 96 = 0

Factorise

(x - 4) (x^2 + 6x + 24) = 0

x^2 + 6x + 24 has no real x-value

So,

Divide both sides by (x^2 + 6x + 24).

0 ÷ (x^2 + 6x + 24) = 0

So,

(x - 4) = 0

x = 4

Width = x = 4 inches

Length = 2x

= 2(4)

= 8 inches

Height = x + 2

= 4 + 2

= 6 inches

Check:

Volume of a box = length × width × height

= (8 * 4 * 6) inches

= 192 inches

4 0

4 years ago

Colored pencils:3.75<br> discount Rate: 35%<br> tax rate: 6%

belka [17]

Answer:

$2.58

Step-by-step explanation:

3.75 - 35% = 2.44 + 6%=

6 0

4 years ago

sierra walks her dog twice a day her evening walk is two and a half as far as her morning walk at the end of the week she walk h

andriy [413]

Answer:

The Is 32 Steps

Step-by-step explanation:

Because She Twice Day with Her Dog and 30 million

3 0

3 years ago

The equation c = 2.95g shows how much it costs to buy gas at a gas station on a certain day. In the equation, c represents the c

Alexxandr [17]

The equation c = 2.95g shows how much it costs to buy gas at a gas station on a certain day. In the equation, c represents the cost in dollars, and g represents

(a) four (gallons of gas, cost) pairs that fit this relationship.

Plug in some values for g and find out C

c = 2.95g

g= 1, C= 2.95(1) = 2.95

g= 2, C= 2.95(2) = 5.9

g= 3, C= 2.95(3) = 8.85

g= 4, C= 2.95(4) = 11.8

four pairs are (1,2.95) (2,5.9) (3,8.85) (4,11.8)

2. Create a table or graph of the relationship.

Use the above points we got from part (a) for graphing

The graph is attached below

(3) What does 2.95 represent in this situation?

g= 1, C= 2.95(1) = 2.95

This means when 1 gallon purchased then the cost is 2.95 dollars

2.95 represents the cost of 1 gallon of gas

(4) Jada's mom remarks, "You can get about a third of a gallon of gas for a dollar."

c = 2.95g

c is the cost , and g is gallons

cost is 1 dollar so we replace c with 1

1 = 2.95 g

Divide by 2.95 on both sides

$g=\frac{1}{2.95}$

That is one third of a gallon of gas

So she is correct.

8 0

4 years ago