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mars1129 [50]
3 years ago
8

Please solve this will mark brainliest and follow -Thanks

Mathematics
1 answer:
Artemon [7]3 years ago
6 0
It is false because -53 does not equal -32.
First you have to add 42 to -95 then you have to subtract 57 from 25.
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1 . fraction bar a fraction in which the numerator is smaller than the denominator 2 . numerator the number under the fraction l
11Alexandr11 [23.1K]

Answer:

The number under the fraction line tells how many equal parts the whole was broken into

8 0
2 years ago
I will give you a good amount of points if you answer this correct​
Colt1911 [192]

Answer:

I think the answer is B. The equation has infinitely many solutions.

Step-by-step explanation:

4(3x + 4) = 15x + 12 - 3x + 4

*group like terms so 4(3x+4) = 15x - 3x + 12 + 4

*add similar elements 15x - 3x = 12x

*add the numbers 12 + 4 = 16

*Expand to 12x + 16 - 16 = 12x + 16 - 16

*You simplify 12x = 12x

*Subtract 12x from both sides

*Then Simplify which is 0

Which means Both sides are equal to 0

True for all X

5 0
3 years ago
3x+4/7-5x-4/7=3/7<br> A- (2)<br> B (-2)<br> C (4/3)<br> D (-4/7)
oksano4ka [1.4K]
That  one is realy hard
5 0
3 years ago
An economist conducted a study of the possible association between weekly income and weekly grocery expenditures. The particular
kolezko [41]

Answer:

42.1% of variation in the response is explained by the regression line

Step-by-step explanation:

Correlation coefficient is a measure which tells us that how strongly are two variables under study are linearly related to each other i.e correlation coefficient gives the strength of linear association between the variables.

If the magnitude of correlation coefficient is closer to 1, it indicates a strong linear relationship. If the magnitude of correlation coefficient is closer to 0, it indicates a weak linear relationship.

There is another variable known as "Coefficient of Determination", which is equal to square of Correlation Coefficient. Coefficient of Determination tells us that what percentage of variation in the response of the study can be explained by the regression line.

This means, for this question we need to calculate the Coefficient of Determination.

Correlation coefficient = r = 0.649

Coefficient of Determination = R = r² = (0.649)²= 0.421 = 42.1 %

This means that 42.1% of variation in the response is explained by the regression line.

5 0
3 years ago
For passing Grade 8, you received a $150 gift card. You want to purchase a skateboard for $78.50 and a helmet for $32.00. a) Sal
Yuki888 [10]

Answer:

a) $14.37 sales tax

b) $25.13 left on gift card

Step-by-step explanation:

Purchases: 78.50 + 32.00 = 110.50

Sales tax: 13%:

1% of 110.50 = 1.1050

1.1050 x 13 = 14.365

rounded to 2 decimal places: $14.37

Total cost: 110.50 + 14.37 = $124.87

Gift card: 150.00 - 124.87 = 25.13

3 0
3 years ago
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