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Usimov [2.4K]
3 years ago
7

Please can someone help me

Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Answer:

C those who vote for the ballot tend to be from district 2

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Keith plans to buy a car in the future.He currently has $3000 saved up to buy a car. How much money does he need to save per mon
Brut [27]

Answer:

about $709 per month

Step-by-step explanation:

Okay, so in order to solve this question, we should follow this formula:

3,000 + 24x \geq 20,000

where 24 is the amount of time we have and x is the variable we are using as to show the unknown amount of money earned per month.

3,000 + 24x \geq 20,000

-3,000               -3,000

24x \geq 17,000

/24           /24

x \geq approximately 709 dollars

so, we substitute x for 709

3,000 + 24(709) \geq 20,000

3,000 + 17,016 \geq 20,000

20,016 \geq 20,000

which is true

Hope this helps :)

3 0
3 years ago
Item 16 A sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. What is the difference of the vol
Zigmanuir [339]

Answer:

672\pi \text{ cm}^3.

Step-by-step explanation:

We have been given that a sphere has a radius of 8 centimeters. A second sphere has a radius of 2 centimeters. We are asked to find the difference of the volumes of the spheres.      

We will use volume formula of sphere to solve our given problem.

\text{Volume of sphere}=\frac{4}{3}\pi r^3, where r is radius of sphere.

The difference of volumes would be volume of larger sphere minus volume of smaller sphere.

\text{Difference of volumes}=\frac{4}{3}\pi(\text{8 cm})^3-\frac{4}{3}\pi(\text{2 cm})^3

\text{Difference of volumes}=\frac{4}{3}\pi(512)\text{ cm}^3-\frac{4}{3}\pi(8)\text{ cm}^3

\text{Difference of volumes}=\frac{4}{3}\pi(512-8)\text{ cm}^3

\text{Difference of volumes}=4\pi(168)\text{ cm}^3

\text{Difference of volumes}=672\pi\text{ cm}^3

Therefore, the difference between volumes of the spheres is 672\pi \text{ cm}^3.

3 0
4 years ago
Add. (6x^2-2x)+(5x-7)
dolphi86 [110]

Answer:

6x^2 + 3x - 7

Step-by-step explanation:

  • 6x^2 - 2x + 5x -7
  • 6x^2 + 3x -7

it's easy..

8 0
3 years ago
Read 2 more answers
Simplify each expression. State any excluded values, Show your work.
Lerok [7]

Answer:

\frac{3x^{4}+10x^{2} }{5}

Step-by-step explanation:

2x^{2}  + x^{3}(\frac{6x}{10} )

2x^{2}  + x^{3}(\frac{3x}{5} )

2x^{2}  + \frac{3xx^{3}}{5}

\\ 2x^{2}  + \frac{3x^{4}}{5}

\frac{5(2x^{2} )}{5}   + \frac{3x^{4}}{5}

\frac{5(2x^{2} )+3x^{4}}{5}

\frac{10x^{2} +3x^{4}}{5}

\frac{3x^{4}+10x^{2} }{5}

5 0
3 years ago
What is the number in scientific notation? ​0.000000000093
alex41 [277]
The question is asking to convert the said number or decimal value in a scientific notation form  and base in my further calculation and understanding about the said problem, the answer would be 9.3 x 10^-12. I hope you are satisfied with my answer and feel free to ask for more 
4 0
3 years ago
Read 2 more answers
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