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Hunter-Best [27]
4 years ago
15

I NEED HELP!!!!!!!!!!!!

Mathematics
1 answer:
mart [117]4 years ago
4 0

Answer:

n=7

Step-by-step explanation:

I feel like you need the answer now so i'm not gonna write one.

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What is the equation in slope-intercept form that passes through the points (-4, 47) and (2, -16)?
Whitepunk [10]

Answer:

y = 10.5x - 37

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

Equality Properties

Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-4, 47)

Point (2, -16)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{-16-47}{2+4}
  2. Subtract/Add:               m=\frac{63}{6}
  3. Simplify:                        m=\frac{21}{2}

<u>Step 3: Find y-intercept </u><em><u>b</u></em>

  1. Define:                    y = 21/2x + b
  2. Substitute:              -16 = 21/2(2) + b
  3. Multiply:                  -16 = 21 + b
  4. Isolate <em>b</em>:                 -37 = b
  5. Rewrite:                   b = -37

<u>Step 4: Write linear equation</u>

<em>Combine all parts.</em>

y = 21/2x - 37

y = 10.5x - 37

And we have our final answer!

5 0
3 years ago
Figure on the left is a trapezoid. All angles in the figure on the right are right angles. All dimensions are in centimeters.
IRISSAK [1]
The area of the trapezoid is 221. You get that by multiplying 13 and 17. The area of the figure on the right is 119. You get that by subtracting 5 from fourteen to give you 9. Then you multiply 9*11=99. After you have that done you need to figure out the little square, which is 5*4=20. Add 99+20=119.

Hope this helps 
5 0
3 years ago
A circle has a radius of 9 cm.
stira [4]

Radius = 9cm

So,

Area of circle = πr²

= π(9)²

= π × 81 cm²

= 81π cm²

8 0
3 years ago
Read 2 more answers
To which sets of numbers does 1 1/2 belong to
baherus [9]

Answer:

A rational number because it's negative it can't be natural and cuz it's fraction it can't be whole nor integers.

<em>p.s. thanks to salma1148 for the answer</em>

7 0
3 years ago
A 14.5-gallon gasoline tank is 3434 full. How many gallons will it take to fill the tank? Write your answer as a mixed number.
max2010maxim [7]
This is a multiplication of fractions.  If the tank is 3/4 full, and the tank holds 14.5 gal, then we need to multiply 14.5 * 3/4 First, convert 14.5 to 14 1/2 = 29/2 as an improper fraction Now, we have 29/2 * 3/4 = 87/8 = 10 7/8 gal That's how much gas is in the tank now. However, we want to know how much is needed to fill the tank. That can be determined by subtracting 10 7/8 from the amount that the tank can hold when full, which is 14.5 or 14 1/2. 14 1/2 - 10 7/8 can be re-written using improper fractions 29/2 - 87/8       We need a common denominator, which is 8 116/8 - 87/8 = 29/8 = 3 5/8 gal That's how much is needed to fill the tank
6 0
4 years ago
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