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Vaselesa [24]
3 years ago
7

A science teacher wrote the table of values below.

Mathematics
1 answer:
nirvana33 [79]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Took quiz

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dexters weighs 50 kg. His body contains 30.8 kg of oxygen and 4. 9 kg if hydrogen. The rest is made up of other elements. How ma
andrey2020 [161]
50-(30.8+4.9)=14.3 kg.
You start with 50 then you need to subtract 30.8 and 4.9 from it. So you add them together and get 35.7. Then you subract 25.9 from 50 and get 14.3 kg.
4 0
3 years ago
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What is the shortest distance 0.714 meter or 0.224 meter
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0.224 would be the correct answer


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3 years ago
Lindsie is painting on a canvas with dimensions of 3 ft by 4 ft. She wants to make a display model for a gallery that has twice
love history [14]

Answer:

B. 1.4 feet

Step-by-step explanation:

Let, the amount of increase be 'x' ft.

Since, the length and width of the canvas are 4 ft and 3 ft respectively.

Thus, area of the canvas, A_{c} = length × breadth = 4 × 3 = 12 ft²

Since, the area of display model is twice the area of the canvas. We have,

A_{d} = 2 × A_{c}

i.e. A_{d} = 2 × 12

i.e. A_{d} = 24 ft².

As, the length and width of the canvas are increased  by 'x'.

The, length and width of the display model are (x+4) ft and (x+3) ft.

So, we get,

A_{c} = length × breadth = (x+4) × (x+3) = x^{2} +7x+12

Since, A_{d} = 24 ft²

i.e.  x^{2} +7x+12 = 24

i.e.  x^{2} +7x-12=0

Solving the quadratic equation, we get,

i.e. x = -8.4 and x= 1.4

Since, the value of x cannot be negative.

Thus, x = 1.4 feet.

4 0
3 years ago
Yong is measuring two pyramids whose bases are rectangles.
ElenaW [278]

Answer:

Answer is 7/2 cm

Step-by-step explanation:

1. Set a ratio

7=\frac{3V}{l*w}:h=\frac{3V}{l*2w}

2. Move 2w from denominator to LHS (Left hand side)\frac{7}{2}w=\frac{3V}{l}

\frac{7}{2w}=\frac{3V}{l}

3. The four options are 7/4, 7/2, 14 or 28 cm

7 0
3 years ago
the three sides of an equilateral triangle measure x 12, 2x - 5 and 3x - 22 inches. the sides of the triangle measure:
Novay_Z [31]
27.... or whats the x12 ?

4 0
3 years ago
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