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goldfiish [28.3K]
3 years ago
7

_56 by 7 answer choice is A)-9. B)-8 C)7 D)8

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

Divide 56 by 7? In that case, let's use our tables.

7*2=14

7*3=21

7*4=28

7*5=35

7*6=42

7*7=49

7*8=56

Find your answer? ANswer is D.

strojnjashka [21]3 years ago
6 0
56 divided by 7 equals D) 8


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If f(x)=5(x-3)+4 what is the value of f(2)?
algol13

Answer:

-1

Step-by-step explanation:

6 0
4 years ago
A local bake shop sells cookies and cakes.On monday , sean bought 3 cookies and 5 cakes and spent $78.75 on tuesday , sean bough
Bond [772]

Answer:

The price of one cookie is $1.25 and the price of one cake is $15.

Step-by-step explanation:

Let $x be the price of one cookie and $y be the price of one cake.

1. On Monday, Sean bought 3 cookies and 5 cakes, then he spent $(3x+5y) and this is $78.75. Thus,

3x+5y=78.75.

2. On Tuesday, Sean bought 8 cookies and 2 cakes, then he spent $(8x+2y) and this is $40. Thus,

8x+2y=40.

3. Solve the system of two equations:

\left\{\begin{array}{l}3x+5y=78.75\\8x+2y=40\end{array}\right.

Multiply the first equation by 2 and the second equation by 5 and subtract them:

2(3x+5y)-5(8x+2y)=2\cdot 78.75-5\cdot 40,\\ \\6x+10y-40x-10y=157.5-200,\\ \\-34x=-42.5,\\ \\x=\$1.25.

Then

8\cdot 1.25+2y=40,\\ \\2y=40-10,\\ \\y=\$15.

8 0
3 years ago
Which is an equation of the line that has a slope of 1/2 and passes through the point (2, 4)?
irina1246 [14]

Answer:  y = \frac{1}{2}x +3  (Choice A)

Work Shown:

y - y_1 = m(x - x_1)\\\\y - 4 = \frac{1}{2}(x - 2)\\\\y - 4 = \frac{1}{2}x + \frac{1}{2}(- 2)\\\\y - 4 = \frac{1}{2}x - 1\\\\y = \frac{1}{2}x - 1+4\\\\y = \frac{1}{2}x +3\\\\

Explanation: I started with the point-slope form. Then I plugged in the given slope m = 1/2 and the point (x1,y1) = (2,4). Afterward I solved for y.

The answer is in slope-intercept form y = mx+b

3 0
1 year ago
7. Classical linear model assumptions for time series Consider the following stochastic process {(x1, x2, x3, . . . , xk, yt): t
iogann1982 [59]

Answer:

Options are missing.

The options for the above question are:

TS.1: Linear in parameters.

TS.2:No perfect collinearity

TS.3: Zero conditional mean.

TS.4: Homoskedasticity.

TS.5: No serial correlation

TS.6: Normality.

Hence the correct answer is TS1 to TS 5

Step-by-step explanation:

Assumptions TS 1 to TS 5 are the minimum set of assumptions needed to for the OLS estimates to be the best linear unbiased estimators conditional on explanatory variables for all time periods.

The assumptions of Normality is not needed for the estimators to show the BLUE property

3 0
3 years ago
What's the measure of Z1 if Z CBD = 75° and ZABC = 135°?
Paladinen [302]

Answer:

60°

Step-by-step explanation:

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135-75

=60

4 0
3 years ago
Read 2 more answers
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