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S_A_V [24]
3 years ago
11

What’s the value of the expression?

Mathematics
2 answers:
WITCHER [35]3 years ago
8 0

Answer:

hi how are you

Step-by-step explanation:

Fofino [41]3 years ago
3 0

The answer to the expression is 42.

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PLEASE HELP!!!!
emmasim [6.3K]

Answer:

C

Step-by-step explanation:

Hope this helps

4 0
3 years ago
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What is the center of the data in the dot plot? Number of Minutes to Finish the Quiz mc010-1.jpg
Oliga [24]
The answer is 13. Or the third choice, just took the test.
6 0
3 years ago
Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3
Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

\displaystyle \rho=\frac{m}{V}

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

m=\rho.V

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3

Calculating:

V=523.6\ cm^3

The mass is:

m=8.09 gr/cm^3 \cdot 523.6\ cm^3

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

4 0
3 years ago
Given f(x) = -x – 4, find f(4).<br> I need help
Brums [2.3K]

Answer:

f(4) = -8

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>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -x - 4

f(4) is x = 4

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                  f(4) = -4 - 4
  2. Subtract:                            f(4) = -8
5 0
3 years ago
Over 6 days jim jogged 6.5 miles 5 miles 3 miles 2 miles 2 miles 3.5 miles and 4 miles. What is the mean distance that jum jogge
Marizza181 [45]

Mean means average.

To find the average, add the data then divide it by the amount of individual data you have.

(6.5 + 5 + 3 + 2 + 2 + 3.5 + 5)/2 = mean

27/2 = mean

13.5 = mean

13.5 miles is the mean distance that Jim jogged.

5 0
3 years ago
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