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3 years ago

5+ 2 1/2 + 7 1/2 + 2 1/2+ 7 1/2 +5=

Mathematics

2 answers:

____ [38]3 years ago

7 0

Answer:

its 30.

Step-by-step explanation:

that's all I know.

shusha [124]3 years ago

5 0

Answer should be 30! hope this helps

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Find the slope of the line that passes through the points (2,-20) and (1,-20).

amm1812

Answer:

$\displaystyle m=0$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (2, -20)

Point (1, -20)

Step 2: Find slope m

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

Substitute in points [Slope Formula]: $\displaystyle m=\frac{-20+20}{1-2}$
[Fraction] Subtract/Add: $\displaystyle m=\frac{0}{-1}$
[Fraction] Divide: $\displaystyle m=0$

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3 years ago

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I need help, please and thank you. I know that you have to multiply the diameter by 2 to find the radius, but with the 9 pi, it

andrew11 [14]

Answer:

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Step-by-step explanation:

The area of a circle is given by πr². Note that this uses the radius, not the diameter.

Now, one quarter of this area (ABC) is given to be 9π.

So apparently:

$\frac14 \pi r^2 = 9\pi$

If you solve this:

$\frac14 r^2 = 9$ (divide both sides by π)

$r^2 = 9\cdot4$ (multiply both sides by 4)

r = √36 = 6

so the radius is 6.

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3 years ago

How could you determine whether 21/3 120/12 and 7/9 have the same decimal equivalent

Kipish [7]

ANSWER: To determine if all three of those fractions have the same decimal equivalent, we simply divide the numerator by the denominator. Fractions mean division! So for the first one 21/3 That's 21 divided by 3. That's 7!

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Marrrta [24]

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I could do that because both numbers are divisible by 7, and then they are divisible by 2. You could also have divided them by 14, but I think it's easier to do and explain this way.

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3 years ago

Find the difference or type "impossible"

eduard

Answer:

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2 years ago