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4 years ago

Can you please solve 2 and 3

Mathematics

1 answer:

Murrr4er [49]4 years ago

7 0

I’m pretty sure that I’m pretty sure that question 2 is 1 minute and 40 seconds. And for number 3 I got B. 0.25 because if you look at where the line makes a direct cross between pounds and dollars that first one is 8 pounds for 2 dollars. If you divide 8 by 2 you will get 0.25. Hope this helped :)

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Mr. Cannon has a piece of land that is 3/7 of an acre. He wants to build 10 houses on his land. How much land does each house ge

sashaice [31]

Answer:

Step-by-step explanation:

3/7 divided by 10 houses= 0.042 acres per house

4 0

3 years ago

Consider the following regression output where the dependent variable is testscores and the two explanatory variables are the st

jeyben [28]

Answer:

The correct option is (A).

Step-by-step explanation:

The multiple linear regression equation is given by, $y=\alpha +\beta _{1} x_{1}+\beta _{2}x_{2}$ , where α = constant and β $_{i}$ = slope coefficients of regression line.

To test if there is a important relationship amid X $_{i}$ and Y, we use the t-statistic test.

The t-statistic for regression coefficient analysis is given by,

$t=\frac{\beta_{i}}{S.E._{\beta_{i}}}$

The regression equation for test scores dependent upon the two explanatory variables, the student-teacher ratio and the percent of English learners is:

$\text{TestScore} = 698.9 - 1.10 \text{ STR} - 0.650 \text{ PctEL}$

A t-test for the significance of the regression coefficient of variable student-teacher ratio (STR) is conducted.

The test statistic is found to be, t = 2.56.

The regression coefficient of variable STR is, 1.10.

Compute the standard error of the regression coefficient as follows:

$t=\frac{\beta_{i}}{S.E._{\beta_{i}}}$

$S.E._{\beta_{i}}=\frac{\beta_{i}}{t}$

$=\frac{1.10}{2.56}\\\\=0.4296875\\\\\approx 0.43$

The standard error of the regression coefficient is 0.43.

Thus, the correct option is (A).

4 0

3 years ago

I really need help I have 20 minutes

nlexa [21]

Answer:

a. -1.7

b. -1.2

c. -0.5

d. 0.6

e. 1.1

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Can someone plz help me!??!

Vaselesa [24]

To solve for x, you simplify both sides of the equation and then isolate the variable.

10x + 12 = $72.00
x = 6

Six people attended the concert.
Check the answer:
(10 • 6) + 12 = 72.00
60 + 12 = 72.00
_____________________________________________________________
Answer: x = 6

8 0

4 years ago

PLEASE HELP!!! Solve the problem by writing an inequality. A club decides to sell T-shirts for $12 as a fund-raiser. It costs $2

igor_vitrenko [27]

Each shirt is bought for eight dollars and sold for twelve, so there is four dollars profit per shirt. The twenty dollar constant, however, needs to be covered by the profit.
The inequality is
100>=4x-20
120>=4x
30>=x
The club needs to sell at least 30 shirts to make a profit of at least $100

6 0

3 years ago

Can you please solve 2 and 3​

Can you please solve 2 and 3