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3 years ago

12

What are the factors of 16x²-12x+20?

1 answer:

bixtya [17]3 years ago

4 0

That should be the answer

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Empirical rule (statistics)Help please!!!

emmasim [6.3K]

The empirical rule you're referring to is the 68-95-99.7 rule, which asserts that for a normal (bell-shaped) distribution, approximately 68% of the distribution lies within 1 standard deviation of the mean; 95% lies within 2 standard deviations of the mean; and 99.7% lies within 3 standard deviations of the mean.

Let $X$ be the random variable denoting vehicle speeds along this highway. We want to find $P(61$ . To use the rule, we need to rephrase this probability in terms of the mean and standard deviation.

Notice that $61=70-9=70-3\cdot3$ , and $79=70+9=70+3\cdot3$ . In other words, 61 and 79 both lie exactly 3 standard deviations away from the mean, so $P(61$ .

8 0

3 years ago

Sally has 8 apples and her brother stole 4. how many does she have left

sergiy2304 [10]

Answer: Sally has 4 apples.

Step-by-step explanation: If she started off with eigth apples and her brother has stolen four apples, then she has four apples left.

8-4=4

Hope this helps you out! ☺

-Karleif-

7 0

3 years ago

My family and I are so confused on this! Help please!

-BARSIC- [3]

Answer:

10) Correct

11) Each row is equal to 12 when you multiply them together.

12) 24

Step-by-step explanation:

12) You multiply 4*3*2 to get the volume of 24, which is also the number of cubes needed to make the shape.

<u>Please</u><u> give</u><u> brainliest</u><u> if</u><u> I</u><u> helped</u><u>!</u><u> </u><u>:</u><u>)</u>

3 0

2 years ago

HELPPP PLEASEEE ILL GIVE B IF CORRECT AND EXPLAIN

timurjin [86]

Answer: 60 degrees

Explanation: If all angles are same, each angle is 60 degrees and adds up to 180.

6 0

3 years ago

Read 2 more answers

Name the solid and find its volume. Use 3.14 as the approximate value of pi.

sineoko [7]

It is given in the question that the solid is a cone with height of 16 units and radius of 7 units .

The formula of volume of cone is

$V = \frac{1}{3} \pi r^2 h$

To find the volume, we substitute the given values of r and h and use 3.14 for pi. That is

$V = \frac{1}{3} *3.14*7^2 *16 = 820.6 \ units \ cube$

And that's the required volume of the cone .

7 0

3 years ago