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3 years ago

Please solve these for 20 points : solving formulas for a variable

Mathematics

1 answer:

Digiron [165]3 years ago

6 0

6. (A/pi = r^2)
7. [(P - 2l)/2 = w]
8. [C/(2pi)= r]
9. (2A/h = b)
10. (E/c^2 = m)

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HEEEEEEEEEEEEEEEEEELP photo attached for real this time

vladimir2022 [97]

Twice a number increased by 5= 2x+5

5 decreased by twice a number= 5-2x

twice the difference of a number and 5= 2(x-5)

Twice the sum of a number and 5= 2(x+5)

Five subtracted from twice a number= 2x-5

Twice a number, less 5= 2x-5

7 0

3 years ago

What is the slope? First, determine the slope. (200,14) (225,16)

Maksim231197 [3]

Answer:

$\displaystyle m=\frac{2}{25}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

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

Step-by-step explanation:

Step 1: Define

Point (200, 14)

Point (225, 16)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [SF]: $\displaystyle m=\frac{16-14}{225-200}$
[Fraction] Subtract: $\displaystyle m=\frac{2}{25}$

7 0

3 years ago

Explain how, in general, riemann sum approximations to the area of a region under a curve change as the number of subintervals

Lyrx [107]

As you increase the subintervals the area will be closer and closer to the real value. In other words your approximation gets better.

As you increase the intervals, there will be more rectanagles and the added area of these rectangles are converging towards the actual area under the curve.

5 0

3 years ago

Simplify 2.5x+0.1x-0.01x=

Pavlova-9 [17]

PEMDAS
2.5x + 0.1x = 2.6x
2.6x - 0.01x = 2.59x

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3 years ago

Please help me i need help bad .

Hoochie [10]

Answer:

I think the answer is D. 4

4 0

3 years ago