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3 years ago

Help me on the first question pls

Mathematics

1 answer:

Margaret [11]3 years ago

3 0

To do the first question, simplify the equation, putting like terms together, by adding and subtracting to do this.

Then looking at the equation that you solved for, look and see if there are any other equations that are related in some way to the original solved equation.

Pay close attention to the positive and negative signs.

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If you run 100 meters in 10 seconds, what is your average speed

sertanlavr [38]

Answer:

Yeah it's 10

Step-by-step explanation:

100/10=10

6 0

2 years ago

Graph the image of the figure using the transformation given

Vilka [71]

1,2,5 are the answers I think. I hope this helped

7 0

3 years ago

Melissa had 56 pens and 37 pencils thanks. How many pencils did Melissa have?

lorasvet [3.4K]

Just by adding both of these, pens and also pencils, these actually both signify the same word, "pencils".

We do . . . .

$\boxed{56+37=3}$

(93) should be your correct answer!

7 0

2 years ago

What is the area of the trapezoid? B1=12 B2=6 H=4

Oliga [24]

The formula for the area of a trapezoid is 1/2 (b1 + b2) h
So, take your b1 and b2, 12 and 6, and add them together. You get 18.
Divide this by 2, and you get 9.
Now, multiply 9 by your height, which is 4.
9 x 4 = 36.
The area of the trapezoid is 36 square inches.

3 0

3 years ago

The number of defective units in a production run of 850 circuit boards are normally distributed with 21 defective units and 3 d

Katen [24]

Answer:

82%

Step-by-step explanation:

We let the random variable X denote the number of defective units in the production run. Therefore, X is normally distributed with a mean of 21 defective units and a standard deviation of 3 defective units.

We are required to find the probability, P(17 < X < 25), that the number of defective units in the production run is between 17 and 25.

This can be carried out easily in stat-crunch;

In stat crunch, click Stat then Calculators and select Normal

In the pop-up window that appears click Between

Input the value of the mean as 21 and that of the standard deviation as 3

Then input the values 17 and 25

click compute

Stat-Crunch returns a probability of approximately 82%

Find the attachment below.

5 0

3 years ago