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joja [24]
2 years ago
5

Juan lives 100 m away from billy. what is juans average speed if he reaches billys home in 50 seconds

Mathematics
1 answer:
alexandr1967 [171]2 years ago
6 0

Answer:

3 meters per second

Step-by-step explanation:

Average speed = Total distance/ Total time

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Choose the correct description of the graph of the compound inequality: (5 points) x − 3 < −7 or x + 5 greater than or equal
marusya05 [52]

Answer:

the answer would be a number line with an open circle on -4, a closed circle on 3, and shading in between.

Step-by-step explanation:

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3 years ago
In a set of 25 aluminum castings, four castings are defective (D), and the remaining twenty-one are good (G). A quality control
lianna [129]

Answer:

The sample space for selecting the group to test contains <u>2,300</u> elementary events.

Step-by-step explanation:

There are a total of <em>N</em> = 25 aluminum castings.

Of these 25 aluminum castings, <em>n</em>₁ = 4 castings are defective (D) and <em>n</em>₂ = 21 are good (G).

It is provided that a quality control inspector randomly selects three of the twenty-five castings without replacement to test.

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!(n-k)!}

Compute the number of samples that are possible as follows:

{25\choose 3}=\frac{25!}{3!\times (25-3)!}

      =\frac{25\times 24\times 23\times 22!}{3!\times 22!}\\\\=\frac{25\times 24\times 23}{3\times 2\times 1}\\\\=2300

The sample space for selecting the group to test contains <u>2,300</u> elementary events.

6 0
3 years ago
Mandy shaded the fraction strip below to represent a fraction Shade the fraction strip below so that it represents a fraction th
Aleksandr-060686 [28]

Your question is missing the figure, so the figure for your question is attached below:

Answer:

shade 2 strips out of 4 to get fraction strip equivalent to Mandy's fraction strip

Step-by-step explanation:

As Mandy shaded the 3 trips out of the total six strips. It shows the fraction of  \frac{3}{6}

and \frac{3}{6}=\frac{1}{2}

To shade the given fraction strip so that it represents a fraction that is equivalent to Mandy's fraction strip, we should shade 2 stripes out of 4 that is equivalent to \frac{1}{2}

i.e. \frac{2}{4}=\frac{1}{2}

My Fraction Strip is equivalent to Mandy's Fraction Strip because both are equal to \frac{1}{2}

5 0
3 years ago
Let f(x) = x2 − 3x − 7. Find f(−3).
MrRa [10]
Answer is:
f(-3) = 11
5 0
2 years ago
Read 2 more answers
What is the product of 3 1/2 x 1/5
vesna_86 [32]

Answer:

7/10

Step-by-step explanation:

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