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2 years ago

25 pts

Mathematics

2 answers:

Solnce55 [7]2 years ago

8 0

Answer:

490lbs.

Step-by-step explanation:

kirill [66]2 years ago

8 0

Answer:

490 lbs

Step-by-step explanation:

times means multiplication, so 35 times means 14 rows of 35 (and vice versa).

14 x 35

490

(Check the attached file for a full count)

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The translation shown in the graph moves the figure to the right. What kind of translation is shown?

Elena-2011 [213]

the figure go to the left

6 0

3 years ago

Complete each trinomial such that it can be rewritten in the form

lukranit [14]

Answer:

Step-by-step explanation:

1.5x^2+6x+.... so that it can be rewritten in the form a(x+b)^2

Let .... be C

1.5x^2+6x+C

=1.5(x^2+4x+(C/1.5))

Compare above with 1.5(x+2)^2 = 1.5(x^2+4x+4)

C/1.5=4

C=6

So the expression should be 1.5x^2+6x+6

It can be rewritten to 1.5(x+2)^2

8 0

1 year ago

A company that manufactures baseball bats believes that its new bat will allow players to hit the ball 30 feet farther than its

NeX [460]

Using the t-distribution, it is found that the 99% confidence interval for the true difference between the mean distance hit with the new model and the mean distance hit with the older model is (-25.4, 40.4).

We will find the standard deviation for each sample, hence, the t-distribution will be used.

For each sample, the mean, standard deviation and sample sizes are given by:

$\mu_1 = 259.6, s_1 = 18.72, n_1 = 10$

$\mu_2 = 252.1, s_2 = 30.95, n_2 = 10$

The standard error for each sample is given by:

$s_{e1} = \frac{18.72}{\sqrt{10}} = 5.92$

$s_{e2} = \frac{30.95}{\sqrt{10}} = 9.79$

The distribution of the differences has mean and standard error given by:

$\overline{x} = \mu_1 - \mu_2 = 259.6 - 252.1 = 7.5$

$s = \sqrt{s_{e1}^2 + s_{e2}^2} = \sqrt{5.92^2 + 9.79^2} = 11.44$

The interval is:

$\overline{x} \pm ts$

The critical value for a 99% two-tailed confidence interval, with 10 + 10 - 2 = 18 df, is t = 2.8784.

Then:

$\overline{x} - ts = 7.5 - 2.8784(11.44) = -25.4$

$\overline{x} + ts = 7.5 + 2.8784(11.44) = 40.4$

The 99% confidence interval for the true difference between the mean distance hit with the new model and the mean distance hit with the older model is (-25.4, 40.4).

To learn more about the use of the t-distribution to build a confidence interval, you can check brainly.com/question/25675821

8 0

1 year ago

Simplify -5+8, 7-9 please

nikklg [1K]

3,-2 hope this helps

8 0

2 years ago

The ad for Company Clothes stated “$5 more than twice” as much as our competitor. Company Clothes offered a $45 discount. What w

Juliette [100K]

Answer:20$

Step-by-step explanation:

2x20=40

40+5=45

6 0

3 years ago