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konstantin123 [22]
3 years ago
13

Which expression can be used to check the answer to 56➗(-4)=-4?

Mathematics
1 answer:
Drupady [299]3 years ago
8 0

Answer:

-14 × -4

Step-by-step explanation:

56 ÷ -4 = -4        

To check your answer to a problem you will start with the answer you got when you divided times the answer to the problem, will give you the number you started with.

  -14 × -4 = 56      

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2x=14<br>Find the value of x.​
Rashid [163]

Answer:

<h3>ᎪꪀsωꫀᏒ</h3>

x= 7

Step-by-step explanation:

2x=14

x= 14/2

x= 7

6 0
3 years ago
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Which graph represents the solution<br><br>8 - 3x ≥ -4​
Vedmedyk [2.9K]

Answer:

3rd option

Step-by-step explanation:

8 - 3x ≥ - 4 ( subtract 8 from both sides )

- 3x ≥ - 12

divide both sides by - 3 , reversing the symbol as a result of dividing by a negative quantity.

x ≤ 4

since ≤ the circle on number line is solid ( not open )

since less than 4 then arrow points left away from 4

the solution is shown on the third graph

6 0
1 year ago
Five males with an​ X-linked genetic disorder have one child each. The random variable x is the number of children among the fiv
Dahasolnce [82]

Answer and Explanation:

Given : Five males with an​ X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the​ X-linked genetic disorder.

To find :

a. Does the table show a probability distribution?

b. Find the mean and standard deviation of the random variable x.

Solution :

a) To determine that table shows a probability distribution we add up all six probabilities if the sum is 1 then it is a valid distribution.

\sum P(X)=0.029+0.147+0.324+0.324+0.147+0.029

\sum P(X)=1

Yes it is a probability distribution.

b) First we create the table as per requirements,

x      P(x)         xP(x)           x²            x²P(x)

0    0.029         0              0                0

1     0.147        0.147           1              0.147

2    0.324       0.648         4              1.296

3    0.324       0.972         9              2.916

4    0.147        0.588        16              2.352

5    0.029       0.145         25            0.725

   ∑P(x)=1      ∑xP(x)=2.5               ∑x²P(x)=7.436

The mean of the random variable is

\mu=\sum xP(x)=2.5

The standard deviation of the random sample is

Variance=\sigma^2

\sigma^2=\sum x^2P(x)-\mu^2

\sigma^2=7.436-(2.5)^2

\sigma^2=7.436-6.25

\sigma^2=1.186

\sigma=\sqrt{1.186}

\sigma=1.08

Therefore, The mean is 2.5 and the standard deviation is 1.08.

5 0
3 years ago
Evaluate 5/8-(1/4)2=
ValentinkaMS [17]

Answer:

0.125

Step-by-step explanation:

(5 divided by 8) - ((1 divided by 4) x 2) = 0.125

3 0
3 years ago
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On a coordinate plane, triangle A B C and parallelogram G H J K are shown. Triangle A B C has points (2, 0), (1, negative 6), (n
valentina_108 [34]

Answer:

The area of △ABC is 2 square units greater than the area of parallelogram GHJK.

Step-by-step explanation:

4 0
3 years ago
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