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4 years ago

In a scale drawing, the length of the airplane is 7 inches. What is the length of the real airplane? Scale factor: 1 in:9 ft

Mathematics

1 answer:

BartSMP [9]4 years ago

4 0

Answer:

63 ft

Step-by-step explanation:

Multiply your scale factor by 7.

1 in : 9 ft . . . . . . . . . . your scale factor

7·(1 in) : 7·(9 ft) . . . . . indicate the multiplication

7 in : 63 ft . . . . . . . . do the multiplication

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A group pre-orders 8 tickets for a sightseeing tour, even though they don't have the money to pay for them yet. Each ticket cost

katen-ka-za [31]

Answer: -$266

Explanation: -32x8 because of 8 tickets, add 10 to the total debt because of the fee.

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3 years ago

The volume of this regular pentagonal pyramid is 82.5 cubic meters. What is the height of the pyramid?

a_sh-v [17]

the height of the pentagonal pyramid is 5. 70 meters

<h3>Volume of a regular pentagonal pyramid</h3>

The formula for determining the volume of a regular pentagonal pyramid is given as;

V=5/12tan(54°)ha^2

Where

a is the base edge
h is the height

We have the volume to be;

volume = 82. 5 cubic centers

height = h

a = 5m

Substitute the values

$82. 5 = \frac{5}{12}$ × $tan 54$ × $h$ × $5^2$

$82. 5 = 0. 42$ × $1. 3764$ × $25$ × $h$

Make 'h' subject of formula

$h = \frac{82. 5}{14. 45}$

h = 5. 70 meters

The height of the pentagonal pyramid is 5. 70 meters

Thus, the height of the pentagonal pyramid is 5. 70 meters

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1 year ago

The fit line equation is Y = -2.61x +152.51, where x is variable 1 and Y is variable 2. According to the equation, what is the e

egoroff_w [7]

The expected value of y when x is equals to 45 in the equation is 35.06

<h3>How to find variable from an equation?</h3>

The equation is given as follows;

y = -2.61x + 152.51

where

x = variable 1
y = variable 2

Therefore,

when

x = 45

y = -2.61x + 152.51

y = -2.61(45) + 152.51

y = - 117.45 + 152.51

y = 35.06

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2 years ago

( use elimination) on 3x+5y=12 and x-3y=4

Elena L [17]

Answer:

x=4 y=0

Step-by-step explanation:

3x+5y=12

-(x-3y=4)

3x+5y=12

3(-x+3y=-4)

3x+5y=12

-3x+9y=-12

14y=0

y=0

Then, substitute the y into the equation to find x

x-3(0)=4

x=4

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3 years ago

Whih of the following is equivalent to (81m^6)^1/2

Setler [38]

Can you list the answer choices?

$\sqrt{81m^6}$ would be equivalent

4 0

3 years ago

Read 2 more answers