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3 years ago

CAN SOMEONE PLEASE HELP ME!!

Mathematics

1 answer:

QveST [7]3 years ago

3 0

<h2>A) Wrong</h2><h2>B) Wrong</h2><h2>C) Right </h2><h2>D) Right</h2><h2>C and D is right because when you solve the problem it ends up as - 12 - 6f. </h2><h2>But to me it is mostly C. </h2><h2>I hope this helps. </h2><h2>I tried my best </h2><h2><u>Have a great dayyyy!!! :) </u></h2>

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An airplane took 5 hours to travel 3,420 kilometers.how many kilometers did the plane travel in one hour

tino4ka555 [31]

Answer:

684 Hours.

Step-by-step explanation:

If the plane travelled that distance in 5 hours, then all you need to do is divide the distance by 5 to get the distance travelled in one hour. This is obviously presuming that the speed travelled was constant or that this is an average figure.

3420/5 = 684.

8 0

3 years ago

Read 2 more answers

An orange juice producer buys oranges from a large orange grove that has one variety of orange. The amount of juice squeezed fro

strojnjashka [21]

Answer:

a) 0.10565

b) The two values = 4.61712 and

4.78288

c) 4.64088

Step-by-step explanation:

The z score formula we use to solve when given a random number of samples=

The formula for calculating a z-score is is z = (x-μ)/σ/√n

where x is the raw score

μ is the population mean

σ/√n is standard error

σ is the population standard deviation

n = random number of samples

a. What is the probability that the sample mean amount of juice will be at least 4.60 ounces?

z = (x-μ)/σ/√n

x = 4.60

μ = 4.70

σ = 0.40

n = 25

z = 4.60 - 4.70/0.40/√25

z = -0.10/0.40/5

z = -1.25

P-value from Z-Table:

P(x ≤ 4.60)

= P(x ≤ 4.60)

= P(z = -1.25)

= 0.10565

Therefore, the probability that the sample mean amount of juice will be at least 4.60 ounces is 0.10565

b. The probability is 70% that the sample mean amount of juice will be contained between what two values symmetrically distributed around the population mean?

The probability of 70% = 0.70

The z score for 0.70 = 1.036

This means, -1.036 and +1.036 gives a probability (0.70) or confidence level of 70%

We are to find x(raw score)

We solve using z score formula

For z = +1.036

z = (x-μ)/σ/√n

x = ?

μ = 4.70

σ = 0.40

n = 25

1.036 = x - 4.70/0.40/√25

1.036 = x - 4.70/0.08

Cross Multiply

1.036 × 0.08 = x - 4.70

0.08288 = x - 4.70

0.08288 + 4.70 = x

x = 4.78288

For z = -1.036

z = (x-μ)/σ/√n

x = ?

μ = 4.70

σ = 0.40

n = 25

-1.036 = x - 4.70/0.40/√25

-1.036 = x - 4.70/0.08

Cross Multiply

-1.036 × 0.08 = x - 4.70

-0.08288 = x - 4.70

-0.08288 + 4.70 = x

= 4.61712

Therefore, the two values = 4.61712 and

4.78288

c. The probability is 77% that the sample mean amount of juice will be greater than what value?

We are told to find the value that the sample mean is greater than

The z score for a P(x > z)

= P(x > 0.77)

= -0.739

Using z score formula, we find x first

z = (x-μ)/σ/√n

x = ?

μ = 4.70

σ = 0.40

n = 25

-0.739 = x - 4.70/0.40/√25

-0.739 = x - 4.70/0.08

Cross Multiply

-0.739 × 0.08 = x - 4.70

-0.05912 = x - 4.70

-0.05912 + 4.70 = x

x = 4.64088

Therefore, the value that the probability is 77% that the sample mean amount of juice will be greater than is 4.64088

5 0

3 years ago

What is the equation pie fully?

avanturin [10]

Had to copy and paste due to not knowing a very large part of the number, obviously the number is ∞
<span>pi=3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825 34211 70679 82148 08651 32823 06647 09384 46095 50582 23172 53594 08128 48111 74502 84102 70193 85211 05559 64462 29489 54930 38196 44288 10975 66593 34461 28475 64823 37867 83165 27120 19091 45648 56692 34603 48610 45432 66482 13393 60726 02491 41273 72458 70066 06315 58817 48815 20920 96282 92540 91715 36436 78925 90360 01133 05305 48820 46652 13841 46951 94151 16094 33057 27036 57595 91953 09218 61173 81932 61179 31051 18548 07446 23799 62749 56735 18857 52724 89122 79381 83011 94912 98336 73362 44065 66430 86021 39494 63952 24737 19070 21798 60943 70277 05392 17176 29317 67523 84674 81846 76694 05132 00056 81271 45263 56082 77857 71342 75778 96091 73637 17872 14684 40901 22495 34301 46549 58537 10507 92278...... </span>

4 0

3 years ago

By running the same software on a computerthat is 40% faster, how many more frames per second can be displayedthan on the slower

labwork [276]

Answer:

Step-by-step explanation:

Let the current display rate be f (in frames per second). If the new computer is 40% faster, then the new display rate will be 1.40f (frames per second).

8 0

2 years ago

Factor this polynomial expression. X^2 + 8x + 16

andrezito [222]

Answer:

D. (x + 4)(x + 4)

Step-by-step explanation:

The poynomial x^2 + 8x + 16 is a perfect trinomial.

Perfect trinomials are when the square root of the first term, multiplied by the square root of the third term, multiplied by 2, is equal to the middle term.

In trinomial ax² + bx + c, it is perfect when:

(2) (√(ax²)) (√c) = bx

In x² + 8x + 16,

2(√x²)(√16) = 8x

The formula for a perfect trinomial is:

ax² ± bx + c = (√(ax²) ± √c)(√(ax²) ± √c) = (√(ax²) ± √c)²

Open up two brackets. Square the first and last term, and they are either added or subtracted based on the sign before the middle term.

In x² + 8x + 16,

(√x² + √16)² = (x + 4)² = (x + 4)(x + 4)

3 0

3 years ago