All categories

2 years ago

I GIVE BRAINLILEST

Mathematics

1 answer:

stich3 [128]2 years ago

6 0

Answer:

96 kilograms

Step-by-step explanation:

32x3=96 just trust me I don'T know how to explain

You might be interested in

What is a equivalent expressions 3(6x+4)

Contact [7]

Answer: 18x + 12

Step-by-step explanation:

3 ( 6x + 4 )

3 x 6x = 18x

3 x 4 = 12

18x + 12

4 0

2 years ago

(−7, 5) and (7, 5) on the coordinate grid below show the positions of two players of a football team: A coordinate plane is show

galina1969 [7]

Answer:

Player 1's position is Player 2's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

Step-by-step explanation:

When you reflect a point (x, y) across the y-axis, the y-coordinate remains the same, but the x-coordinate gets the opposite sign: it becomes (-x, y).

Thus, if a point P, say, (7,5) is reflected across the y-axis, its reflection P' becomes(-7,5)

3 0

2 years ago

Estimate each product 5/7×1/9=

Cerrena [4.2K]

Multiply it out to get 5/7*1/9=5/63. This is an exact value of the product.

8 0

2 years ago

F(x)=−1/2(x−2)(x+6)<br><br> rewrite the function in vertex form

Whitepunk [10]

Answer:

tell me this question in a more clearer way then ill message the answer

Step-by-step explanation:

6 0

2 years ago

An ammunition producer claims his best product has an average lifespan of exactly 18 years. A skeptical product evaluator asks f

DochEvi [55]

Answer:

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 50 - 1 = 49

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.9}{2} = 0.95$ . So we have T = 1.6766

The margin of error is:

$M = T\frac{s}{\sqrt{n}} = 1.6766\frac{8}{\sqrt{50}} = 1.9$

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 15 - 1.9 = 13.1 years

The upper end of the interval is the sample mean added to M. So it is 15 + 1.9 = 16.9 years

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

8 0

2 years ago