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3 years ago

I need help PWEASEEEE

Mathematics

2 answers:

Anton [14]3 years ago

8 0

Answer:

Step-by-step explanation:

From the number line, we can see that the blue line points to all values to the left of 5. This means all values less than 5.

Also, note that since the blue dot is closed, the inequality includes 5.

Therefore, the inequality that represents the graph is all values less than or equal to 5.

In notation, this is:

$x\leq 5$

The answer is B

Verizon [17]3 years ago

8 0

Answer:

your answer is B. $x\leq 5$

Step-by-step explanation:

$x\leq 5$ means that your arrow should be point left which means less than the line under the less than means that the don´t should be shaded in

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The College Board provided comparisons of Scholastic Aptitude Test (SAT) scores based on the highest level of education attained

poizon [28]

Answer:

a. $H_{0}:$ u1≤u2

$H_{a} :u1>u2$

b P<0.05 rejected H

Step-by-step explanation:

College High School

485 442

534 580

650 479

554 486

550 528

572 524

497 492

592 478

487 425

533 485

526 390

410 535

515

578

448

469

The mean is the average . the sum of number over the number of observation

x1=525

x2=487

s.d1=59.42

s.d2=51.74

n1=16

n2=12 $\alpha =0.05$

Determine the hypothesis

$H_{0}:$ u1≤u2

$H_{a} :u1>u2$

find the degree of freedom $(\frac{s1^2}{n1} +\frac{s2^2}{n2} )^2/(\frac{s1^2}{n1} )^2/n1-1+(s2^2/n2)^2/n2-1\\\\(\frac{59.42^2}{16} +\frac{51.7476^2}{12} )^2/(\frac{59.42^2}{16} )^2/16-1+(51.74^2/12)^2/12-1$

p-value is the probability of obtaining the value of the test statistics. In the column of t-value in the row df=25

0.025<P<0.05

if the P value is actually less than or the same as the significant level, then the null hypothesis is rejected

P<0.05 rejected H

8 0

3 years ago

Help omggg help omgg

kenny6666 [7]

Answer:

Θ = 84°

Step-by-step explanation:

using the identity

cosx = sin(90 - x) , then

cos6° = sin(90 - 6)° = sin84°

that is Θ = 84°

4 0

3 years ago

Need help now due today

san4es73 [151]

a) The variable in the inequality is x.

b) The inequality symbol needed < ( or >)

c) The constant is 8.

d) The inequality is f(x)<8x .

Step-by-step explanation:

Given,

The person can make less than $8 per hour

To find the correct inequality for this situation.

Let us take,

The person works for x hours.

If the total income of the person for x hours is f(x)

Then, the inequality will be

f(x)<8x

3 0

3 years ago

14. Find the average of the 1000 whole numbers

steposvetlana [31]

Answer:

500.5

Step-by-step explanation:

The average of a set of numbers is the sum of the numbers divided by the number of numbers.

The sum of all whole number form 1 to n is n(n + 1)/2.

The sum of all whole numbers from 1 to 1000 is

1000(1000 + 1)/2 = 1000(1001)/2 = 500,500

The average is the sum of the numbers divided by the number of numbers.

average = 500,500/1000 = 500.5

5 0

4 years ago

Which would be the next step in solving for matrix A?

Lady_Fox [76]

Answer:

A=(16 -5 0 -9)-(3 -4 -11 24)

Step-by-step explanation:

The solution process for any algebraic expression is to "undo" what is done to the variable. Here, matrix A has (3 -4 -11 24) added to it. The next step is to undo that addition, by subtracting that amount from both sides of the equation. The result is ...

A = (16 -5 0 -9)-(3 -4 -11 24)

_____

We assume there are typos in the answer choices listed here.

8 0

3 years ago