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Viktor [21]
3 years ago
9

Find the product. Tell which strategy you used. 32 x 25 =

Mathematics
1 answer:
tatiyna3 years ago
3 0
800 the strategy I used was adding 32 over and over 25 times
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From a shipment of 400 light-bulbs, a sample of 80 was selected at random and tested. If 32 light-bulbs in the sample were found
denis-greek [22]
80 x 5 = 400
32 x 5 = 160
so you have about 160 <span>defective bulbs</span>
4 0
3 years ago
Are the following ordered pairs in a proportional relationship? (2,3) and (10,16)
gavmur [86]
The answer A yes (2.3)
8 0
3 years ago
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A trapezoid has a height of 6 feet. The measures of the bases are 12 units and 18
Alik [6]

The area of this trapezoid is 90 square feet.

<h3>Explanation : </h3>

Before we know the answer, let's we know the formula first. The formula for count the area of trapezoid is :

\boxed {\bold {A = \frac {(a+b) \times h}{2}}}

If :

  • A = area of trapezoid
  • a = bottom bases of trapezoid
  • b = top bases of trapezoid
  • h = height of trapezoid

Okay, let's we count its :

We know that :

  • a = bottom bases of trapezoid = 18 feet
  • b = top bases of trapezoid = 12 feet
  • h = height of trapezoid = 6 feet

Question : A = area = ... ?

Answer :

A = \frac {(a+b) \times h}{2} \\ A = \frac {(12+18) \times \cancel6}{\cancel2} \\ A = 30 \times 3 = 90  \: {ft}^{2}

<u>Subject</u><u> </u><u>:</u><u> </u><u>Mathematics</u>

<u>Keyword</u><u> </u><u>:</u><u> </u><u>Count</u><u> </u><u>The</u><u> </u><u>Area</u><u> </u><u>of</u><u> </u><u>a</u><u> </u><u>shape</u>

8 0
2 years ago
PLEASE HELP! WAYYY OVERDUE!!!
In-s [12.5K]

Answers:

  • Red = negative skew
  • Yellow = symmetric
  • Blue = positive skew

================================================

Explanation:

A symmetric distribution is where we have the left half be a mirror copy of the right half. In other words, we have symmetry going on.

For the yellow team, note the distance between Q1 and the median is 1 unit (47-46 = 1), and so is the distance from the median to Q3  (48-47 = 1). So the box portion has perfect symmetry. You should find that the whiskers are also perfectly symmetric as well using a similar technique of finding the distances and comparing them.

Overall, the entire box-and-whisker plot for the yellow team is perfectly symmetric.

---------------

If a distribution isn't symmetric, then it's skewed in some way. If the right side is pulled longer than the left, then we consider it "skewed to the right" aka "positively skewed". So that applies to the blue team. The red team has negative skew because its left tail is longer than the right tail.

6 0
2 years ago
Find the product of (–d + e)(4e + d). Which statements are true? Check all that apply.
Bogdan [553]

Hello!

This is a question about multiplying to get a polynomial answer.

Here we can use two strategies, which will get you the same strategy.

One is using a Punnett Square, and the other would be FOILing.

I personally like Punnett Squares, but I will use FOILing for the sake of being online.

FOIL stands for First, Outside, Inside, Last, which describes how the terms should be multiplied.

Let's multiply the first terms.

(-d + e)(4e + d)

-4de

The outside terms.

(-d + e)(4e + d)

-d^2

The inside terms.

(-d + e)(4e + d)

4e^2

The last terms.

(-d + e)(4e + d)

de

Now you just add them together to find the polynomial.

-d^2+4e^2-4de+de

-d^2+4e^2-3de

There are three terms in the product, and the product is degree 2, since the highest degree of the equation (the highest power any term is raised to) is 2.

Hope this helps!

4 0
3 years ago
Read 2 more answers
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