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zzz [600]
2 years ago
5

9 is subtract from the product of 7 and 3​

Mathematics
1 answer:
Rus_ich [418]2 years ago
8 0

Answer:

12

Step-by-step explanation:

The given statement is,"9 is subtract from the product of 7 and 3​".

The product of 7 and 3 means, we need to multiply 7 and 3. So,

7 × 3 = 21

9 is subtract from the product of 7 and 3​ means, 21 - 9 = 12.

Hence, the value of 9 is subtract from the product of 7 and 3​ is 12.

You might be interested in
Find the distance between the points (2, 7) and (6, 0).
maw [93]

Answer:

8.06

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√(6 - 2)² + (0 - 7)²

√(4)² + (-7)²

√(16) + (49)

√65

= 8.06

3 0
3 years ago
A college chemistry instructor thinks the use of embedded tutors will improve the success rate in introductory chemistry courses
Yuliya22 [10]

Answer:

Step-by-step explanation:

Hello!

The chemistry instructor tested the hypothesis that the proportion of students that passed the introductory chemistry class is better with an embedded. If the known proportion for this population is 65%, the tested hypothesis is:

H₀: p=0.65

H₁: p>0.65

The calculated statistic is Z=2.52 and the associated p-value: 0.0059

Remember:

The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).

In this case:

P(Z≥2.52)=0.0059

There is no significance level, the most common one is α: 0.05 so I'll use it as an example.

To make a decision using the p-value you have to compare it to the α.

If p- value>α then you support the null hypothesis (In this case, you can say that there is no change in the proportion of students that passed the introductory chemistry class with an embedded tutor.)

If p-value≤α your decision will be to reject the null hypothesis (In this case, there is significant evidence to say that there is an improvement in the success rate of the introductory chemistry class with an embedded tutor?

Since the p-value:0.0059 is less than the significance level 0.05, you will decide to reject the null hypothesis.

I hope you have a SUPER day!

8 0
3 years ago
The motion of a ship riding at anchor can be modeled by y=25-4 cos (pi/6)t, where y is the water depth in feet and t is the time
balandron [24]

Answer: 29 feet (deepest) at 6 am

              21 feet (shallowest) at Midnight & Noon

<u>Step-by-step explanation:</u>

y = -4 cos (π/6)t +25

Amplitude (A) = 4    

-A means it is a reflection over the x-axis (starts at minimum)<em> </em>

Period = 2π/B   →  Period = 12

Phase shift = C/B   →  Phase Shift = 0

Midline (D) = 25

Midline (D) ± Amplitude (A) = Max & Min

Max: 25 + 4 = 29

Min: 25 - 4 = 21

Change the coordinates of y = cos (x) as follows:

  • x-value: Add C then divide by B
  • y-value: Multiply by A then add D

Note that the equation shows: A = -4, B = π/6, C = 0, D = 25

\begin{array}{c|ccc|cl}\underline{\quad x\quad}&\underline{\quad y\quad}&&\underline{\quad (x+C)/B\quad}&\underline{\quad Ay+D\quad}\\0&1&&0&21&minimum\\\pi&0&&3&25&midline\\\pi &-1&&6&29&maximum\\3\pi/2&0&&9&25&midline\\2\pi&1&&12&21&minimum\\\end{array}

5 0
3 years ago
Hurry please!!!! I can’t decide
sesenic [268]

Answer:

Change 2 to 3 and the last one will be 2

Step-by-step explanation:

I believe a triangular prism will be 1/2 instead of 1/3 because of the side differences between a triangular prism and a Pyramid

Hope this Helped

4 0
2 years ago
Hiiii<br> how are you today?
Evgen [1.6K]

Answer:

Im good thx for askkin

Step-by-step explanation:

hbu

5 0
2 years ago
Read 2 more answers
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