All categories

3 years ago

PLEASE HELP ASAP! Will give BRAINLIEST! Please answer correctly! No guessing!

Mathematics

2 answers:

nikdorinn [45]3 years ago

7 0

Answer:

Step-by-step explanation:

recall that for an exponential function in the form

f(x) = Aˣ

if 0 < A < 1, then as x increases, the function f(x) gets closer and closer to zero (i.e it approaches zero)

but

if A < 0, then as x increases, the function f(x) continues to grow bigger and bigger (i.e it approaches infinity)

Hence for a function to be increasing (i.e f(x) grows bigger and bigger), the value of A must be greater than 1.

If we look at all our choices, only 1 choice has the value of A greater than one, which is choice C.

zimovet [89]3 years ago

4 0

Answer:

c.) 5^x

Step-by-step explanation:

graphing calc.

You might be interested in

Is 2 (x-y) and 2x-2y equivalent

MArishka [77]

Answer:

yes

Step-by-step explanation:

2(x-y) you distribute the 2 to whats inside the parenthesis

2x-2y

4 0

3 years ago

What is the solution of the system when just looking at the equations? No Graph!

Kaylis [27]

The slope-intercept form: y = mx + b

m - slope

b - y-intercept

y = 5x + 2 and y = 5x – 8

m = 5 m = 5

b = 2 b = -8

When comparing equations:

1. Put in slope-intercept form.

2. Compare the slopes and the y-intercepts!

This system has no solution.

Because we have the same slopes and different y-intercepts.

If the slopes are the same and the y-intercepts are the same, then that system has infinitely many solutions.

If the slopes are different, then that system has one solution.

6 0

3 years ago

Please solve I need help!

ladessa [460]

24 is the answer welcome !

5 0

3 years ago

If (a,b) is the vertex of the parabola whose equation is y= (x+3)^2 +3, what is the value of a+b?

Lerok [7]

The vertex is (-3,3),so a =-3, b=3. a+b=0

6 0

3 years ago

Hypothesis Testing for Means with Small Samples

Scorpion4ik [409]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is

X: volume of root beer in a Windsor Bottling Company can.

A sample of n=24 cans was taken and their contents measured, resulting:

X[bar]= 11.4 oz

S= 0.62 oz

Assuming that the variable has a normal distribution X~N(μ;σ²), the parameter of interest is the average contents of the root beer cans of the Windsor Bottling Company (μ)

The claim is that the population mean content of the cans is different from 12 oz, symbolically: μ ≠ 12

The statistical hypothesis (Null and alternative) have to be complementary, exhaustive and mutually exclusive. The null hypothesis is the "no change" hypothesis and always carries the "=" sign.

If the claim is μ ≠ 12, its complement is μ = 12, the expression carrying the "=" sign will be the null hypothesis and its complement will be the alternative hypothesis:

H₀: μ = 12

H₁: μ ≠ 12

α: 0.05

To test the population mean of this normal population, you have to apply a one sample t-test, with statistic:

$t= \frac{X[bar]-Mu}{\frac{S}{\sqrt{n} } } ~t_{n-1}$

$t_{H_0}= \frac{11.4-12}{\frac{0.62}{\sqrt{24} } } = -4.74$

This test is two-tailed, using the critical value approach, you have to determine two rejection regions. Meaning, you'll reject the null hypothesis to small values of the statistic or to high values of the statistic.

$t_{n-1;\alpha /2}= t_{23;0.025}= -2.069$

$t_{n-1;1-\alpha /2}= t_{23;0.975}= 2.069$

The decision rule is:

If $t_{H_0}$ ≤ -2.069 or if $t_{H_0}$ ≥ 2.069, then you reject the null hypothesis.

If -2.069 < $t_{H_0}$ < 2.069, then you do not reject the null hypothesis.

The value is less than the left critical value, the decision is to reject the null hypothesis.

Then you can say that with a 5% significance level, there is significant evidence to reject the null hypothesis, then the average amount of root beer of the Windsor Bottling Company is different from 12 oz, this means that the claim about the amount of root beer in the cans is correct.

I hope it helps!

6 0

3 years ago