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Svetach [21]
2 years ago
12

Can I have help with this!!!!!!!!!!

Mathematics
2 answers:
ioda2 years ago
4 0

Answer:

6

Step-by-step explanation:

77julia77 [94]2 years ago
3 0

Answer:

The answer is 19

Step-by-step explanation: 13 scored from 91-100, and 6 scored from 81-90, all you have to do is add them together.

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A parabola $ax^2+bx+c$ contains the points $(-1,0)$, $(0,5)$, and $(5,0)$. Find the value $100a+10b+c$.
victus00 [196]

Answer:

STOP CHEATING ON AOPS WORK!!!!

Step-by-step explanation:

1. pay attention in class

2. ask message board if you need to

3. stop googling answers

4. you paid lots of money for this course so its all going to waste now thanks to your laziness you ugly piece of sH*t

3 0
3 years ago
7.6375 correct to 2 decimal place
ANTONII [103]
7.6375 =

1 Decimal Place = 7.6
<span>2 Decimal Place = 7.64
</span><span>3 Decimal Place = 7.638
</span><span>4 Decimal Place = 7.6375
</span>
So the answer is 7.64   .
The 3 rounds up because 7 is bigger than 5... 

5 0
3 years ago
What is the length of the hypotenuse of the triangle
user100 [1]

Answer: i think the answers D.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A phone manufacturer wants to compete in the touch screen phone market. He understands that the lead product has a battery life
Tasya [4]

Answer:

(a) <em>H₀</em>: <em>μ</em> ≤ 10. vs. <em>Hₐ</em>: <em>μ</em> > 10.

(b) The test statistic value is 1.86.

(c) The critical value to test the phone manufacturer's claim is 1.301.

(d) The battery life of the new touch screen phone is not more than 10 hours.

Step-by-step explanation:

In this case we need to determine the significance of the claim made by the phone manufacturer, that the battery life of the new touch screen phone is more than twice as long as that of the leading product.

The information provided is:

\bar x=10.5\\s=1.8\\n=45

(a)

The hypothesis can be defined as follows:

<em>H₀</em>: The battery life of the new touch screen phone is not more than 10 hours, i.e. <em>μ</em> ≤ 10.

<em>Hₐ</em>: The battery life of the new touch screen phone is more than 10 hours, i.e. <em>μ</em> > 10.

(b)

As the population standard deviation is not provided, we will use a <em>t</em>-test for single mean.

Compute the test statistic value as follows:

 t=\frac{\bar x-\mu}{s/\sqrt{n}}=\frac{10.5-10}{1.8/\sqrt{45}}=1.86

The test statistic value is 1.86.

(c)

The significance level of the test is, <em>α</em> = 0.10.

The degrees of freedom will be:

df=n-1=45-1=44

Compute the critical value as follows:

t_{0.10, 44}=1.301

*Use a <em>t</em>-table for the value.

Thus, the critical value to test the phone manufacturer's claim is 1.301.

(d)

Decision rule:

If the test statistic value is less than the critical value then the null hypothesis will be rejected and vice-versa.

 t = 1.86 > t₀.₁₀, ₄₄ = 1.30

The calculated <em>t</em>-value of the test is more than the critical value.

The null hypothesis will not be rejected.

Thus, it can be concluded that the battery life of the new touch screen phone is not more than 10 hours.

6 0
3 years ago
What number can be added to 9 to get result of 0
Aliun [14]
To solve this problem, we should set up an equation, letting x be the unknown number.

9 + x = 0 

Next, we should subtract 9 from both sides to cancel out the +9 on the left side of the equation and get the variable alone.

x = -9.

Therefore, the number you are looking for is -9.
6 0
3 years ago
Read 2 more answers
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