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diamong [38]
3 years ago
5

The difference of a number and 9 •write as a algebraic expression

Mathematics
1 answer:
otez555 [7]3 years ago
5 0

Answer:

x - 9

Step-by-step explanation:

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Simplify 7 - (-4) + 3(-6)
jeka94

Answer:

-7

Step-by-step explanation:

7 - (-4)= 11

            +

3(-6)= -18

=-7

8 0
3 years ago
Read 2 more answers
The graph of y = Vx is translated 3 units to the left and 4 unitsdown.
Bezzdna [24]
You isolate the v and move 3 units down to the left which leads u to 10. Hope this helped
7 0
3 years ago
Heights​ (cm) and weights​ (kg) are measured for 100 randomly selected adult​ males, and range from heights of 133 to 193 cm and
yawa3891 [41]

Answer:

The weight of an adult male who is 172 cm tall is 89.36 kg.

Step-by-step explanation:

The regression equation representing the relationship between height and weight of a person is:

\hat y=-105+1.13x

Here

<em>y</em> = weight of a person

<em>x</em> = height of a person

The information provided is:

\bar x=167.90\ cm\\\bar y=81.47\ kg\\r (X, Y) = 0.228\\p-value=0.023\\\alpha =0.05

The hypothesis to test the significance of the correlation between height and weight is:

<em>H₀</em>: There is no relationship between the height and weight, i.e. <em>ρ</em> = 0.

<em>Hₐ</em>: There is a relationship between the height and weight, i.e. <em>ρ </em>≠ 0.

Decision rule:

If the <em>p</em>-value of the test is less than the significance level, then the null hypothesis will be rejected and vice-versa.

According to information provided:

<em>p</em>-value = 0.023 < <em>α</em> = 0.05

The null hypothesis was rejected at 5% level of significance.

Thus, concluding that there is a relationship between the height and weight.

Compute the weight of an adult male with height, <em>x</em> = 172 cm as follows:

\hat y=-105+1.13x

  =-105+(1.13\times 172)\\=-105+194.36\\=89.36

Thus, the weight of an adult male who is 172 cm tall is 89.36 kg.

5 0
3 years ago
What is the approximate circumference of a circle with radius 3?
mart [117]
I’m guessing C, but I’m not for sure
6 0
3 years ago
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B. Translate each word into algebraic eqaution. (Use any letter)
Paraphin [41]

Answer

1. 9

1. 13

1. 147

1. 7/3

1. 9

Step-by-step explanation:

Algebraic equations

1. 2x=18

2. x-5=8

3. (x/7)=21

4. 3x+5=12

5. 2x=18

4 0
2 years ago
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