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valentina_108 [34]
3 years ago
15

Ahmed is riding the elevator in a building. The building has floors above and below ground level. Ahmed uses the expression belo

w to describe his movement.
6 + (negative 8)
Mathematics
1 answer:
bekas [8.4K]3 years ago
8 0

Answer:

Ahmed moved 6 floors up, then moved 8 floors down. Because of that he is now 2 floors below ground level.

Step-by-step explanation:

Hey there!

8 - 6 = 2

~I hope I helped you! :)~

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PLEASE! GEOMETRY
Rzqust [24]

GF = GH
<F = <H
<E=<G
or
<EGF = <HGJ

answer
<span>e) AAS
</span><span>d) ASA</span>
8 0
3 years ago
Read 2 more answers
If A=30°, a=12, b=28 how many triangles can be constructed?
Fofino [41]

Check the picture below.

recall the ambiguous SSA case, as the "12" side moves, it ends up with two supplementary angles on the base.

3 0
3 years ago
Will give brainlyist
Katarina [22]

Answer:

Your answer is D

Step-by-step explanation:

First you find which graph has a plot at (4,7) Which the only one with that is D

Then you find (-2,-5). D, again, is the only one with that.

Lastly you find (0,9). D is, again, the only one who has that.

5 0
2 years ago
Read 2 more answers
How to solve it I am very confused
a_sh-v [17]

Answer:

Answer:

53/12+28/3=13/34

Solution with Steps

53/12+28/3=?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(53/12, 28/3) = 12

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(53/12×1/1)+(28/3×4/4)=?

Complete the multiplication and the equation becomes

53/12+112/12=?

The two fractions now have like denominators so you can add the numerators.

Then:

53+112/12=165/12

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 165 and 12 using

GCF(165,12) = 3

165÷3/12÷3=55/4

The fraction

55/4

is the same as

55÷4

Convert to a mixed number using

long division for 55 ÷ 4 = 13R3, so

55/4=13 3/4

Therefore:

53/12+28/3=13/34

Solution by Formulas

Apply the fractions formula for addition, to

53/12+28/3

Reduce by dividing both the numerator and denominator by the Greatest Common Factor GCF(495,36) = 9

49/5÷93/6÷9=554

Convert to a mixed number using

long division for 55 ÷ 4 = 13 R3, so

554=1334

Therefore:

53/12+28/3=13 3/4

So I Believe 13 3/4  or 55/4

I hope this isn't wrong.

6 0
3 years ago
The Wall Street Journal Corporate Perceptions Study surveys readers and asks how each rats the quality of management and the rep
ololo11 [35]

Answer:

Step-by-step explanation:

\text{The data given for the quality measurement and other criteria can be seen below:}

Quality management      Excellent      Good      Fair      Total

Excellent                             40                   25         5             70

Good                                   35                    35        10            80

Fair                                       25                   10         15             50

Total                                    100                   70        30           200

The null and alternative hypothesis:

\mathbf{H_o: \text{the quality management and reputation are independent} }

\mathbf{H_a: \text{the quality management and reputation are not independent} }

The expected value is calculated by using the formula:

E=\dfrac{row  \ total \times column  \ total }{table \  total}

After using the formula to calculate the table above; we have:

The expected values of the data to be:

Quality management     Excellent         Good      Fair      Total

Excellent                            35                  24.5       10.5      70

Good                                  40                   28         1.2         80

Fair                                     25                  17.5        7.5         50

Total                                   100                  70        30           200

Degree of freedom = ( row - 1 ) × ( column -1 )

= (3 - 1 ) \times (3 -1)

= 2\times 2

=4

\text{The p-value at level of significance of 0.05 and degree of freedom of 4 =  }\mathbf{0.0019}

Decision rule: To reject the \mathbf{H_o} if the p-value is less than the ∝

Conclusion: We reject the \mathbf{H_o} and conclude that quality management and reputation are not independent.

(B)\text{The P-value here implies that in case that there is no dependence between the two ratings, }\text{the probability that they will seem to show at least this kind of strong dependence is 0.0019.}

\text{Thus, the probability that they will seem to show at least this kind of strong independence is =}\mathbf{0.0019}

8 0
2 years ago
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