All categories

3 years ago

Please help!! I'll make you Brainliest!!! Thanks!!

Mathematics

1 answer:

tangare [24]3 years ago

3 0

1) C

2) Yes

3) y = 440 - 12x [ Option D ]

Hope this helps!

You might be interested in

Can someone help me with this? its a relatively simple problem for extra credit in algebra 1.

suter [353]

(2x^2+3x+4)(x^3+4x^2+3x)(x+4)

First use the distributive property for the first two:

(2x^5+8x^4+6x^3+3x^4+12x^3+9^2+4x^3+16x^2+12x)(x+4)

And then combine like terms:

(2x^5+11x^4+22x^3+25x^2+12x)(x+4)

Continue use the distributive property:

(2x^6+11x^5+22x^4+25x^3+12x^2+8x^5+44x^4+88x^3+100x^2+48x)

Continue combine like terms:

(2x^6+19x^5+66x^4+113x^3+112x^2+48x)
And that is your final answer.

Hope that help:)

4 0

2 years ago

A container holds 100 teaspoons of water. what might the container look like? include dimensions

Svetlanka [38]

You'll haft to do this one on your own it sounds like a project sorry!!!

5 0

3 years ago

Please help me out with this

adoni [48]

The numbers in the chart are -7.1, -3.4, -1.2, 2.1, and 3.4. So, from greatest to least the numbers will be:

3.4, 2.1, -1.2, -3.4, and then -7.1.

With absolute value, the numbers from greatest to least are:

|7.1|, |3.4|, 3.4, 2.1, |1.2|.

However, this is assuming that Friday is 3.4, which was given information on the last question. Hope this helps!

4 0

3 years ago

The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment

defon

Answer:

t = -1.428

Step-by-step explanation:

Average blood pressure among people with high responsibility jobs = u = 140 mm

Number of people sampled for the study = n = 51

Average blood pressure of the sample = x = 139 mm

Standard deviation of the sample = s = 5 mm

The claim is that practicing yoga decreases the blood pressure. So we have to test that after practicing yoga, the average blood pressure will be lesser than 140. Based on this we can formulate the null and alternate hypothesis as:

Null Hypothesis: $\mu \geq 140$

Alternate Hypothesis: $\mu < 140$

Since population standard deviation is not known, we cannot use z-distribution for this test. We are given the value of sample standard deviation, so t-test will be used for this case.

Test statistic is calculated as:

$t=\frac{x-u}{\frac{s}{\sqrt{n} } }$

Using the values in this formula gives us:

$t=\frac{139-140}{\frac{5}{\sqrt{51}}}\\\\ t=-1.428$

Therefore, the value of test statistic is -1.428

4 0

2 years ago

Determine mBFD.<br> 65<br> 90<br> 220<br> 110

fomenos

Answer: This one is D.110! ☺️

5 0

3 years ago