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Svet_ta [14]
3 years ago
9

How do I prepare for the PSAT? Every time I take a practice test, I get stuck on a problem that is within my topic range, but fo

r some reason I cannot understand it. Whenever I look at the explanation, I get it, but I cannot do it on my own. Any idea how I can efficiently prepare for it?
Mathematics
1 answer:
melamori03 [73]3 years ago
8 0

Answer:

Maybe you can have someone read it to you to see if you can answer it that way after you answer it on your own a cupple of times

Step-by-step explanation:

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The area of a squared lawn and rectangular vegetable garden are equal.The perimeter of lawn is 24 m and its side is twice the br
rjkz [21]

Answer:

g=12

Step-by-step explanation:

4(2y)=24

8y=24

y =  \frac{24}{8}

y=3

{4y}^{2}  = yg

Since we know the value of y we substitude

{4 \times 3}^{2}  = 3g

36=3g

g=12

6 0
2 years ago
How many vertices does a sphere have?
Vinvika [58]
Hello, a sphere has zero vertices.
5 0
3 years ago
Cannonballs are stacked In a pyramid shape with a base of 5 cannonballs on a side. How many cannonballs in all are in the stack
Vadim26 [7]

Answer:

The total number of balls in the pyramid will be 55.

Step-by-step explanation:

Cannonballs are stacked In a pyramid shape with a base of 5 cannonballs on a side.

Therefore, at the base, the number of balls is 5².

In the layer above the base layer, there are 4 balls on each side.

So, in the layer above the base layer, the number of balls is 4².

Similarly, in the next levels, the number of balls will be 3², 2² and 1.

Therefore, the total number of balls in the pyramid will be (5² + 4² + 3² + 2² + 1) = 55. (Answer)

3 0
3 years ago
Suppose we fit a regression line to predict the number of incidents of skin cancer per 1,000 people from the number of sunny day
Jet001 [13]

Answer: The incidence of skin cancer (melanoma) has been underestimated.

Step-by-step explanation: The frequency of melanoma is more than 20 times higher in whites than in black Americans. In general, the risk of melanoma in the course of life is approximately 2.6% (1 in 38) for whites, 0.1% (1 in 1.000) for black people and 0.58% (1 in 172) for Hispanics. the risk for each person can be affected by a different number of factors.

6 0
3 years ago
Solve for x:90 - 3/2x ≤30.<br> Will Mark Brainliest
Drupady [299]

Answer:

45

Step-by-step explanation:

3 over 2 so then you take the 30 over 1 then the 2 at the bottom you divide the 30 and the 2 and you get 15 then you take the 15 times 3 and that is your answer 45.

8 0
3 years ago
Read 2 more answers
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