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3 years ago

The length of one base of a trapezoid is 19 meters and the length of the median is 23 meters. Find the length of the other base,

Mathematics

2 answers:

RUDIKE [14]3 years ago

7 0

Answer:

Step-by-step explanation:

19+x/2=23

19+x=46

x=27

or 19-23=4

23+4=27

faust18 [17]3 years ago

6 0

The answer is 27 I hope this helps

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The paint used to make lines on roads must reflect enough light to be clearly visible at night. Let µ denote the true average re

musickatia [10]

Answer:

(a) P-value = 0.001

Conclusion: The average reflectometer reading for the new type of paint under consideration is greater than 20.

(b) P-value = 0.036

Conclusion: The average reflectometer reading for the new paint under consideration is 20

Step-by-step explanation:

The test is a one-tailed test because the alternate hypothesis is expressed using greater than.

(a) n = 16, t = 3.3, a = 0.05

Cumulative area of the test statistic t is 0.9995

P-value = 1 - 0.9995 = 0.0005 = 0.001 (to 3 decimal place)

Conclusion:

Reject H0 because the P-value 0.001 is less than the significance level 0.05.

(b) n = 8, t = 1.8, a = 0.01

Cumulative area of the test statistic t is 0.9641

P-value = 1 - 0.9641 = 0.0359 = 0.036 (to 3 decimal places)

Conclusion:

Fail to reject H0 because the P-value 0.036 is greater than the significance level 0.01

5 0

3 years ago

Randy can buy 6 gallons of gas for $18 or 7 gallons of gas for $21. how much do you think he would pay for 8 gallons of gas?

lesantik [10]

18/6 = 3 dollars per gallon

8 x 3 = 24

8 gallons would cost $24

answer is C

6 0

3 years ago

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You pick one card at random from a standard deck of 52 playing cards.You pick a black card.what is the probability as a fraction

zhannawk [14.2K]

Fraction:
1/52.
Decimal:
0.019230769.
Persent:
1.9230769

6 0

3 years ago

Read 2 more answers

A bar of soap weighs 3.8 ounces. the ingredient glycerin makes up 0.4 of the weight of the soap. what is the weight of the glyce

ExtremeBDS [4]

To find the amount of glycerin in the bar of soap, simply multiply 3.8oz by 0.4. The answer is 1.52oz

4 0

4 years ago

Which of the following have the correct solution? Check all

Neko [114]

Step-by-step explanation:

To do this, we will substitute the x values to their corresponding equations,

$2x + 5 \\ = 2(7) + 5 \\ = 14 + 5 \\ = 19$

Given 2x + 15 = 19

Calculated 2x + 15 = 19

Given = Calculated, this solution is correct.

$3 + x + 2 -x \\ = 3 + 3 + 2 - 3 \\ = 8 - 3 \\ = 5$

Given 3 + x + 2 - x = 16

Calculated 3 + x + 2 - x = 5

Given not equal to calculated, this solution is incorrect.

$\frac{x + 2}{5} \\ = \frac{8 + 2}{5} \\ = \frac{10}{5} \\ = 2$

Given (x+2)/5 = 2

Calculated (x+2)/5 = 2

Given = Calculated, this solution is correct.

$6 = 2x - 8 \\ 2x - 8 = 6$

$2x - 8 \\ = 2(7) - 8 \\ = 14 - 8 \\ = 6$

Given 2x - 8 = 6

Calculated 2x - 8 = 6

Given = Calculated, this solution is correct.

$14 = \frac{1}{3} x + 5 \\ \frac{1}{3} x + 5 = 14$

$\frac{1}{3} x + 5 \\ = \frac{1}{3}(18) + 5 \\ = \frac{18}{3} + 5 \\ = 6 + 5 \\ = 11$

Given 1/3x + 5 = 14

Calculated 1/3x + 5 = 11

Given not equal to Calculated, this solution is not correct.

Therefore the Correct solutions are 1,3 and 4.

8 0

3 years ago