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2 years ago

Elijah is going to spin a spinner 180 times.

Mathematics

2 answers:

ella [17]2 years ago

8 0

Answer:

Step-by-step explanation:

Because the spinner is divided into 4 equal sections, they all have an equal chance of being landed on. Therefore, you must do 180*1/4 which is 45. This means that's Elijah's prediction of 60 of the spins will result in 3 is too high.

Nataliya [291]2 years ago

4 0

Answer:

Step-by-step explanation:

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Find the surface area of this cube. Be sure to include the correct unit in your answer.

Alexxx [7]

Answer:

486 cm

Step-by-step explanation:

9×9=81

there are 6 faces

81×6=486

7 0

1 year ago

You are considering developing a regression equation relating a dependent variable to two independent variables. One of the vari

lys-0071 [83]

Answer:

Step-by-step explanation:

a. How many dummy variables are needed to represent the categorical variable?

We need 1 less dummy variable than outcomes for the categorical variable.

categorical variable has 2 outcomes

So, we need 2-1 = 1 dummy variable.

Answer: 1

Note: If our categorical variable had 5 outcomes, we would need 5-1 = 4 dummy variables.

b. Write the multiple regression equation relating the dependent variable to the independent variables.

Note: Depending your your professor, this can be written one of the following ways...

yhat = a + b1 x1 + bx2

yhat = b0 + b1 x1 + b2 x2

yhat = beta0hat + beta1hat x1 + betahat2 x2

where x1 is the ratio variable

and x2 is the dummy variable

c. Interpret the meaning of the coefficients in the regression equation.

b0 = the predicted value of y when x1 and x2 both equal 0.

b1 = the change in y when x1 increases by 1 unit holding x2 constant.

b2 = the predicted difference in y between the two possible outcomes of the categorical variable holding x1 constant.

7 0

3 years ago

Which of the following is a radical equation?

MrMuchimi

It is A because it can’t be B and it can’t be C and it can’t be D so my answer is A

5 0

3 years ago

Help plz!! The function h(t)=-16t^2+22t+4 models the height (h) of a football t seconds after it is thrown. The question ask to

Black_prince [1.1K]

If you're familiar with the quadratic equation
$\frac{ -b \pm \sqrt{b^2-4ac}}{2a}$

well, $\frac{ -b}{2a}$ is the x component of the vertex, in your case, the vertex is the highest point

figure out what t is at the highest point, and then substitute that back into the equation in order to determine height

x=t in this problem

8 0

2 years ago

Convert; 3 tons 675 pounds is equal to how many pounds

Rainbow [258]

1 ton = 2000 pounds. 2000 x 3 = 6000. 6000 + 675 = 6675. So there are 6675 pounds.

7 0

3 years ago

Read 2 more answers