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madreJ [45]
3 years ago
12

Can someone help me with this question

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

360 inches or 30 feet

Step-by-step explanation:

A scale factor is the value which multiplied by a number scales the number larger or smaller. The blueprint has a wall height of 8 in. Using the scale factor 45, the actual height is 8*45 = 360 inches.

360 inches/ 12 inches  is 30 feet.

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Solving a word problem using a quadratic equation with rationa...
choli [55]

Answer:

length : 8 m

width : 13/2 = 6.5 m

Step-by-step explanation:

area of rectangle = l(ength)×w(idth) = 52

l = 2w - 5

=> (2w - 5)×w = 52

=> 2w² -5w - 52 = 0

we know, when transforming this quadratic equation into a multiplication of two expressions of w, that we need to have 2w and w (to make 2w²), and then which 2 numbers multiply to 52 and add to -5 (when one is multiplied by 2 due to 2w) : -13 and 4

=> (2w - 13)×(w + 4) = 0

=> 2 solutions for w :

2w-13 = 0

2w = 13, w = 13/2

w+4 = 0, w = -4

negative values for a side length of a shape do not make sense, so the only usable solution is w = 13/2

=> l = 2w - 5 = 13 - 5 = 8

8 0
3 years ago
Graph the ellipse with equation x squared divided by 16 plus y squared divided by 4 = 1.
Juli2301 [7.4K]

Answer:

See attached image.

Step-by-step explanation:

To easily solve this question, we use a graphing tool, or a calculator to plot the graph of the ellipse.

(1/16)*x^2  +  (1/4)*y^2  = 1

Please see image below

7 0
3 years ago
Read 2 more answers
An angle measures 15 degrees more than its complement. Find the measures of the two angles
kap26 [50]

Answer:

The first angle is 37.5° and the second would be 52.5°

Step-by-step explanation:

Angles are complementary when their sums add up to 90°.

x+(x+15) = 90\\x+x+15=90\\x+x=75\\x=37.5

The first angle is 37.5° and the second would be 52.5°, after we plug in x.

<em>Have a nice day. Feel free to ask questions. Spread The Love.</em>

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Answer:

4.9

Step-by-step explanation:

100% of 2.45 is 2.45.

We add 2.45 + 2.45 which is <u>4.9. </u>

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8 0
3 years ago
Oliver read for 450 minutes this month. His goal is to read for 10% more minutes next month. If Oliver meet his goal, how many m
Digiron [165]
945 minutes.

10% of 450 is 45. 450 + 45 = 495. 450 + 495 = 945.
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3 years ago
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