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4 years ago

PLS! HELP ME ! PICTURE DOWN BELOW!

Mathematics

1 answer:

poizon [28]4 years ago

5 0

Answer:

4 <x<12

Step-by-step explanation:

The smallest x could be is the difference of the other sides 8-4 = 4 and the largest is the sum of the other sides 8+4 =12

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Can some one help me this stuff is hard

klemol [59]

B does. Use the like test!

4 0

3 years ago

On an eight question true-false quiz, a student guesses each answer. What is the probability that he/she gets at least one of th

Fantom [35]

Answer:

$P[at\ least\ 1] = 0.9961$

Step-by-step explanation:

Given

$Questions = 8$

$Quiz\ Type = True\ or\ False$

Required

Probability that s/he gets at least one correctly

First, we calculate the probability of answering a question correctly

Since, there are just 2 choices (true or false), the probability is:

$P(correct) = \frac{1}{2}$

Similarly, the probability of answering a question, wrongly is:

$P(wrong) = \frac{1}{2}$

The following relationship exists, in probability:

$P[at\ least\ 1] = 1 - P[none]$

So, to calculate the required probability.

First, we calculate the probability that he answers none of the 8 questions correctly.

$P[none] = p(wrong)^8$

$P[none] = (\frac{1}{2})^8$

Substitute $P[none] = (\frac{1}{2})^8$ in $P[at\ least\ 1] = 1 - P[none]$

$P[at\ least\ 1] = 1 - (\frac{1}{2})^8$

$P[at\ least\ 1] = 1 - \frac{1}{256}$

Take LCM

$P[at\ least\ 1] = \frac{256 - 1}{256}$

$P[at\ least\ 1] = \frac{255}{256}$

$P[at\ least\ 1] = 0.9961$

<em>Hence, the probability that s/he gets at least one correctly is 0.9961</em>

6 0

3 years ago

Polygon ABCD is dilated by a scale factor of 2 with the center of dilation at the origin to create polygon A′B′C′D′. If the endp

stira [4]

Answer:

34 units

Step-by-step explanation:

5 0

3 years ago

What is the surface area of the figure?

Zielflug [23.3K]

Answer:

90 ft

Step-by-step explanation:

Times the length by the width of one side: 6 x 3= 18

Times 18 by 4 to get the surface area of the 4 rectangular sides: 18 x 4= 72

Times 3 by 3 to get the bottoms surface area: 9

Times 9 by 2 to get both the top and bottoms surface area: 18

Add 72+18 to get the total surface area: 90 ft

5 0

3 years ago

Read 2 more answers

You have recorded your car mileage and gasoline use for 5 weeks. Estimate the number of miles you can drive on a full 15-gallon

I am Lyosha [343]

Answer:

325 miles to the nearest mile.

Step-by-step explanation:

Average gasoline consumption over the 5 weeks

= miles travelled / gasoline used

= (198 + 115 + 154 + 160 + 132) / (9 + 5 + 7 + 8 + 6)

= 21.69 miles per gallon.

Estimate of number of miles you can drive on 15 gallons

= 15 * 21.69

= 325 miles.

4 0

4 years ago