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marysya [2.9K]
3 years ago
9

This is my sisters homework please help

Mathematics
1 answer:
tankabanditka [31]3 years ago
3 0

Answer: 12n crisp

Step-by-step explanation: you dont know n so you just put 12 with n next to it indicating 12 times n

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Lonna uses 8.2 pints of blue paint and white paint to paint her bedroom walls. 2 5 of this amount is blue paint, and the rest is
vova2212 [387]

Answer:

the number of pints of blue paint did she use for painting her bedroom walls is 1.875 pints

Step-by-step explanation:

The computation of the number of pints of blue paint did she use for painting her bedroom walls is shown below:

= Total pint × blue paint

= 7.5 × (1 - 3 ÷ 4)

= 7.5 ×  1 ÷ 4

= 1.875 pints

Hence, the number of pints of blue paint did she use for painting her bedroom walls is 1.875 pints

5 0
3 years ago
Find a single expression that represents the area of the outer ring of the circle if the area of the whole circle is represented
sp2606 [1]

Answer:  The answer is A_o=2\pi\sqrt{\dfrac{7}{22}(25x^2-12x-9)}.


Step-by-step explanation: Given that the area of the whole circle is represented by the expression

A_c=25x^2-12x-9.

We are to find the area of the outer ring of the circle, i.e., to find the circumference of the circle.

Now, if 'r' represents the radius of the circle, then we have

A_c=\pi r^2\\\\\Rightarrow \dfrac{22}{7}r^2=25x^2-12x-9\\\\ \Rightarrow r^2=\dfrac{7}{22}(25x^2-12x-9)\\\\\Rightarrow r=\sqrt{\dfrac{7}{22}(25x^2-12x-9)}.

Thus, the area of the outer ring is

A_o=2\pi r=2\pi\sqrt{\dfrac{7}{22}(25x^2-12x-9)}.


5 0
4 years ago
PLEASE ANSWER
Irina18 [472]

Answer:

You can by 8 of each item and you will still have money left over

Step-by-step explanation:

small=36

medium=52

large=52

that makes 134

6 0
3 years ago
Is ten a perfect square
Contact [7]
Answer:
 No, it is not a perfect square.
7 0
3 years ago
Use the graph of y=f(x) in the figure to estimate:
solniwko [45]

9514 1404 393

Answer:

  • f(0) ≈ 22
  • f(1) = 10
  • f(b) ≈ -8
  • f(c) = 0
  • f(d)  24

Step-by-step explanation:

This takes graph-reading one step further. You get to estimate the y-value without benefit of minor grid lines. You must mentally divide the 10-unit distance between grid lines into equal spaces. Then estimate how many of those spaces lie between the point and the nearest grid line.

You can do this more precisely by drawing a diagonal line across the grid from one major grid intersection to one that is (5, 1) or (5, -1) major grid points away. Where that line crosses the intermediate grid lines, the vertical measure will be some multiple of 1/5 of the vertical difference between grid points. For example, a line from (0,20) to (5,30) will cross at (1,22), (2,24), (3,26), and (4,28). You can use these reference points to identify the y-values at f(0) and f(d).

Here's our eyeball estimate:

  • f(0) ≈ 22
  • f(1) = 10
  • f(b) ≈ -8
  • f(c) = 0
  • f(d)  24

8 0
3 years ago
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