2^9 - 2^4 = 496

when you multiply exponents, you just add the two (4 and 5) and keep the coefficient the same.

when you multiply by an exponent (^2), you multiple the exponents and keep the coefficient the same.

8 0

3 years ago

A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for t

hoa [83]

Answer:

Since p value <0.1 accept the claim that oven I repair costs are more

Step-by-step explanation:

The data given for two types of ovens are summarised below:

Group Group One Group Two

Mean 85.7900 78.6700

SD 15.1300 17.8400

SEM 1.9533 2.3840

N 60 56

Alpha = 10%

$H_0: \mu_1 - \mu_2 =0\\H_a: \mu_1 - \mu_2> 0$

(Right tailed test)

The mean of Group One minus Group Two equals 7.1200

df = 114

standard error of difference = 3.065

t = 2.3234

p value = 0.0219

If p value <0.10 reject null hypothesis

4) Since p value <0.1 accept the claim that oven I repair costs are more

3 0

4 years ago

1/3x^2+2 what does the graph look like

Anna11 [10]

Answer:

The answer in the procedure

Step-by-step explanation:

we have

$\frac{1}{3}x^{2} +2$

This is a vertical parabola open upward with the the vertex at (0,2)

The vertex is a minimum

The y-intercept is the point (0,2) (value of y when the value of x is equal to zero)

The graph does not have x-intercepts, therefore the solutions of the quadratic equation are complex number

using a graphing tool

see the attached figure

4 0

4 years ago

Which Expression has a value of 39?

cluponka [151]

I believe d is the answer
:)

4 0

4 years ago