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Slav-nsk [51]
3 years ago
10

Write a system of equations with the solution (-3,-8) in standard form.

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
3 0

Answer:

y=2x-2

y=3x+1

Step-by-step explanation:

To solve this I will be using the point slope formula

It is as follows

y-y₁=m(x-x₁)

We can choose any m value so I will be choosing m=2

(x₁,y₁) will be (-3,-8) respectively because all we want is for the line to pass through that point

so we have

y-(-8)=2(x-(-3)

We can simplify this to

y+8=2(x+3)

y+8=2x+6

y=2x-2

We then repeat this process but choose a new m (the m value doesn't really matter as long as it's not 0)

I will choose 3

so we have

y-(-8)=3(x-(-3))

Which gives u

y+8=3(x+3)

y+8=3x+9

y=3x+1

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Answer: C (ED 2020)

Step-by-step explanation:

C, s + c = 2.75

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3 years ago
Marjorie needs to calculate how much water a cylindrical tank will hold. The tank is 9 feet high and has a diameter of 5 feet. H
aniked [119]

Answer:

The volume of the cylindrical tank is 176.625 cubic feet.

Step-by-step explanation:

Given : The tank is 9 feet high and has a diameter of 5 feet.

To find : Marjorie needs to calculate how much water a cylindrical tank will hold ?

Solution :

The volume of a cylinder is V=\pi r^2 h

The diameter is d=5 feet

The radius is r=\frac{d}{2}

r=\frac{5}{2}=2.5 feet.

The height is h=9 feet.

Substitute the value in the formula,

V=3.14\times (2.5)^2\times 9

V=3.14\times 6.25\times 9

V=176.625

The volume of the cylindrical tank is 176.625 cubic feet.

8 0
3 years ago
Read 2 more answers
Evaluate a^4 - 6b + 3b ÷ ac for a=-2, b=6, c=3
UNO [17]

Answer:

-47

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

a⁴ - 6b + 3b ÷ ac

<em>a</em> = -2

<em>b</em> = 6

<em>c</em> = 3

<u>Step 2: Evaluate</u>

  1. Substitute in variables:                                                                                     (-2)⁴ - 6(6) + 3(6) ÷ (-2)(3)
  2. Exponents:                                                                                                        16 - 6(6) + 3(6) ÷ (-2)(3)
  3. Multiply:                                                                                                             16 - 36 + 18 ÷ (-2)(3)
  4. Divide:                                                                                                               16 - 36 - 9(3)
  5. Multiply:                                                                                                             16 - 36 - 27
  6. Subtract:                                                                                                            -47
8 0
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kondaur [170]

Answer:

123.4

Step-by-step explanation:

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3 0
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Answer:

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