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Viefleur [7K]
2 years ago
6

A rectangular box which is 4 in. by 7 in. by 7 in. is covered by foil. How much foil is required

Mathematics
2 answers:
yKpoI14uk [10]2 years ago
8 0

C. 196 sq. In.

Multiply 4×7×7 To find the surface area.

Svet_ta [14]2 years ago
4 0

Answer:

210 sqare inches.

(The correct answer should be 196, but I've done this before and it was 210)

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Pachacha [2.7K]

Answer:

y = -4x - 12

Step-by-step explanation:

y + 4 = -4(x + 2)

y = -4x -8 - 4

y = -4x - 12

6 0
2 years ago
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Eric wants to attend a public four-year university. He estimates that the average cost of one year at this university is $19,500
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Which of the sets of equations represent the two lines graphed?
Oksi-84 [34.3K]

Answer:

B) y = x + 2 and y = -x - 4

Step-by-step explanation:

Let the equation of a straight line with x-intercept 'a' and y-intercept 'b' be

\frac{x}{a}  +  \frac{y}{b}  = 1

The line with positive slope has x-intercept a=-2 and y-intercept b=2.

Its equation is:

\frac{x}{ - 2}  +  \frac{y}{2}  = 1

Multiply through by 2

- x + y = 2

Solve for y,

\boxed {y = x + 2}

For the line with a negative slope,

the x-intercept is a=-4 and the y-intercept is b=-4

Its equation is

\frac{x}{ - 4}  +  \frac{y}{ - 4}  = 1

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x + y =  - 4

Solve for y

\boxed {y =  - x - 4}

4 0
3 years ago
PLEASE HELP!! this is due soon and i rlly need help
egoroff_w [7]

Answer:

Solution given:

r=3km

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=¼*π*3²

=<u>9/4 π or 7.068km²</u>

is a required answer

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MatroZZZ [7]

Answer:

x= -8/3

Step-by-step explanation:

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3 years ago
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