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natka813 [3]
3 years ago
6

Super easy question please help!

Mathematics
2 answers:
dusya [7]3 years ago
3 0

d. you already answered it. why do you need help? I'm confused. Is this a trick?

Gala2k [10]3 years ago
3 0

Answer:

D

Step-by-step explanation:

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16.8 - (-23.72)+(-31.3) = x
KatRina [158]

Let's solve  your equation step-by-step

16.8-(-23.72)-31.3=x

Step 1:simplify both sides of the equation

16.8-(-23.72)-31.3=x

16.8+23.72+-31.3=x

(16.8+23.72+-31.3)=x (combine like terms)

9.22=x

9.22=x

Step 2: flip the equation

Answer: x=9.22

5 0
3 years ago
What is the solution to the system of equations? x=4y 6 x-3y=4
ahrayia [7]
If you graph the two equations then you will find that they intersect at (-2,-2).

You then have to check your answer.

x=4y+6
(-2)=4(-2)+6
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x-3y=4
(-2)-3(-2)=4
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4=4

8 0
3 years ago
Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the dail
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Daily temp(in F) Cakes sold

 

42 39

45 52

48 31

54 61

59 72

62 35

64 61

65 34

67 58

75 45

84 24

To find whether there is an association between these two let us find the correlation coefficient between these two variables.

r=-0.1975

Since |r|<0.5, correlation is weak.  

Let us test the hypothesis r =0

H0:r=0

Ha:r not equals 0

Test statistic = \frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{-0.1975\sqrt{11-2} }{\sqrt{1-0.1975^2} }\\=\frac{-0.5625}{{0.9803} } \\=-0.5738

p =0.298

Since p value >0.10, at 90% significance level we accept that there is no association.

6 0
3 years ago
P-(2q+7) when p=10 and q=3​
tatuchka [14]

Answer:

-3

Step-by-step explanation:

6 0
3 years ago
What is the solution to the inequality 7x + 2 &lt; –3x + 1?
Likurg_2 [28]

Answer:maybe ask missturky5000

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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