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mixas84 [53]
3 years ago
13

What's the answer to this problem?

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
7 0
The answer is to this is D
sukhopar [10]3 years ago
6 0
I am pretty sure it is D
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Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. Multiply the first equa
Kryger [21]

Answer:

Multiply the first equation by 4.

Step-by-step explanation:

4(x+y=3) which gives

4x+4y=12

and

4x-y=7

Then subtract the two equations and the x variable will be eliminated.

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3 years ago
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A map has a scale of 1 cm : 20 km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a kilometer, what is the actu
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3 years ago
Find the slope of the line 7x-4y=10
Harman [31]

Answer:

The slope is m=(7/4)

Step-by-step explanation:

we know that

The equation of the line into slope intercept form is equal to

y=mx+b

where

m is the slope

b is the y-coordinate of the y-intercept

In this problem we have

7x-4y=10

so

Convert to slope intercept form

Isolate the variable y

4y=7x-10

y=(7/4)x-(10/4)

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The slope is m=(7/4)

5 0
3 years ago
Find the volume of the following square pyramid<br> PLEASE HELP
trapecia [35]

Answer:

Answer:

85t

Step-by-step explanation:

1. Volume of a cone: 1. V = (1/3)πr2h 2. Slant height of a cone: 1. s = √(r2 + h2) 3. Lateral surface area of a cone: 1. L = πrs = πr√(r2 + h2) 4. Base surface area of a cone (a circle): 1. B = πr2 5. Total surface area of a cone: 1. A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

hope this helps

4 0
3 years ago
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