What is AC? Giving brainliest

Answers

Answer 1

4/AC = AC/9
AC ^2 = 36
AC = 6

Related Questions

NEED HELP ASAP!!!Of all the students who tried out for volleyball, 83% made the team what fraction of the students who tried out did NOT make the team?

Answers
4/5
1/5
3/4
1/3

Answers

Answer:I think it’s 1/5 but if u have another attemp and it’s wrong somehow do 1/3

Step-by-step explanation:

Answer:

3/4 or 1/3

Step-by-step explanation:

after 4 new students joined a class,the class had 32 students.Which equation can be used to find n,the number of students in the class before the 4 new students joined

Answers

Answer....
The answer is

what is x 4(x-2)=2(x+1)

Answers

X = 5

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

X=5

4(x-2)=2(x+1)

4x-8=2x+2

+8 +8

4x=2x+10

-2x -2x

2x=10

2x 2x

X=5

what is the mean of this data set? 11,12,16,11,15,19,13

Answers

Answer:

13.857142

Step-by-step explanation:

Took a lot of math.

what is the answer?

plz help

Answers

Answer:-516

Step-by-step explanation:

Answers:

The simplified expression is -4x The value is -516

===========================================

Explanation:

To simplify this, we combine the coefficients. This works because all of the terms have 'x' in them and nothing else (they are all like terms). We can think of this problem as trying to evaluate -12+14-6. This simplifies to -4

So -12x+14x-6x simplifies to -4x

Afterward, we replace x with 129 to get

-4x = -4*129 = -516

Leanna is making a craft and needs 12 yards of ribbon. If 2 yards of ribbon cost $1.25, how much will 12 yards cost?

Answers

Answer:

$7.50

Step-by-step explanation:

2 yd= 1.25

we have 12 yd so 12/2= 6

6*1.25= 7.50

There are 4 games at the carnival Kevin played all the games in 24 minutes. How many minutes did he spend at each game if he spent an equal amount of time at each?

Answers

Answer:

6 minutes at each game

Step-by-step explanation:

24 minutes divided by 4 games, if he spends and equal amount of time at each game it would be 24/4=6

Answer:

Step-by-step explanation:

24/4=6

The probability that it will rain tomorrow is 0.65

What is the probability that it will not rain tomorrow?

Answers

0.65 = 65% SO THE ANSWER IS 0.45 or 45%

Answer:

.35%

Step-by-step explanation:

100% - .65% = .35%

and sorry for asking but, if this is right could i please get a thanks & brainliest recently a moderator deleted ALL my answers (over 400 answers) causing me to lose over 3k points so id appreciate it alot thanks xoxo

PLEASE SOMEONE HELP ME WITH THIS PROBLEM

Answers

Answer:

1.28

2. -3.5

3.-10.5

Step-by-step explanation:

1.-0.0035 · 12000+70= 28

2. -0.0035 ·21000+70=-3.5

3. -0.0035 ·23000+70=-10.5

I hope this helps

What is the volume?
1 mm
1 mm
1 m

Answers

Answer:

volume equals length times width times height

Step-by-step explanation:

I dunno this answer... pwease help... if you're smart

Answers

Answer:

H: (2, 14)

O: (4,15)

U: (6,14)

S: (2,10)

E: (6,10)

Step-by-step explanation:

the image on the grid is after doin x- 1 and y-7

to get the preimage do the inverse , x + 1 , y + 7

note- a coordinate is written as (x,y)

so, add 1 to all the x's and 7 to all the y's on the coordinates on the grid!

Why is the y - intercept of the function f(x) =4-5x

Answers

Answer: (0,4)

Step-by-step explanation:

The answer would be (0,4)

If this helps any please mark me brainliest!

Help me please, Due Today.

Answers

Answer:

D,F and E,G are parallel

Step-by-step explanation:

slove with cool mind

The ratio of boys to girls is 2 to 3. There are 10 boys. How many girls are in the club?

Answers

Answer:

15 girls.

Step-by-step explanation:

Hope this helps!

Answer:

15 girls

Step-by-step explanation:

2:3 ratio

If you know the amount of boys, then 2x=10, x=5

Now you know that the scale factor is 5

So, multiply 5*3 to get the amount of girls

Complete the proof.
Prove: AUWX - AUW
A)
AAS
B)
ASA
C)HL
D)
SAS

Answers

Answer:D) SAS

Step-by-step explanation:

USA test prep

2) In a random survey of 500 women, 315 said they would rather be poor and thin than rich and fat; in a random survey of 400 men, 220 said they would rather be poor and thin than rich and fat. Is there sufficient evidence to show that the proportion of women who would rather be poor and thin than rich and fat is greater than the proportion of men who would rather be poor and thin than rich and fat

Answers

Answer:

Since the calculated value of Z= 0.242887 is less than Z (0.05) = 1.645 and falls in the critical region we reject the null hypothesis and conclude that there is not sufficient evidence to show that the proportion of women who would rather be poor and thin than rich and fat is greater than the proportion of men who would rather be poor and thin than rich and fat.

Step-by-step explanation:

Here

p1= proportion of women who would rather be poor and thin than rich and fat

p1= 315/500= 0.63

p2= proportion of men who would rather be poor and thin than rich and fat

p2= 220/400= 0.55

1) Formulate the hypothesis as

H0: p1>p2 against the claim Ha: p1 ≤ p2

2) Choose the significance level ∝0.05

3) The test Statistic under H0 , is

Z= p1^ - p2^ / sqrt( pc^qc^( 1/n1 + 1/n2))

pc^= an estimate of the common proportion

pc ^ = n1p1^ + n2p2^/ n1+n2

4) The critical region is Z≤ Z (0.05) = 1.645

5) Calculations

pc^ = 315+ 220/ 500+400= 535/900

pc^= 0.5944

and qc^= 1-0.5944= 0.4055

Thus

Z = 0.63-0.55/ sqrt ( 0.5944*0.4055( 1/500+ 1/400))

Z= 0.08/ sqrt (0.24108 (900/2000))

Z= 0.08/√0.10849

Z= 0.242887

Conclusion :

help please will mark brainliest

Answers

Answer:

I think 1, 4, 5 and 7

Step-by-step explanation:

Approximate 589.57 to the nearest whole number..

Answers

Answer:

590.00

Step-by-step explanation:

Im guessing SORRY

Fernando had 2 children. Each of their children had 2 children, and each of these
He had 2 children. How many grandchildren did Fernando have?

Answers

Answer:

4 grand children

Step-by-step explanation:

Answer:

6 grandkids

Step-by-step explanation:

fernando has 2 kids and each had their own sets of kids so

1 fernando's kid 1 fernando's kid

2 grandchildren 2 grandchildren

=4 grandchildren in total

you said the grandchildren had kids as well so

2+4=6

Which of the following transformations shows that figure C is congruent to figure C'?A.reflection in the x-axis
B.rotation 90 counterclockwise about the origin
C.rotation 180 counterclockwise about the origin
D.rotation 270 counterclockwise about the origin

Answers

Answer: D.rotation 270 counterclockwise about the origin

Step-by-step explanation:

A chemist examines 17 sedimentary samples for lead concentration. The mean lead concentration for the sample data is 0.268 cc/cubic meter with a standard deviation of 0.069. Determine the 80% confidence interval for the population mean lead concentration. Assume the population is approximately normal. Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Answers

Answer:

The critical value that should be used in constructing the confidence interval is T = 1.337.

The 80% confidence interval for the population mean lead concentration is between 0.246 and 0.29 cc/cubic meter.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 17 - 1 = 16

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 16 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.8}{2} = 0.9[/tex]. So we have T = 1.337, which is the crical value.

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 1.337\frac{0.069}{\sqrt{17}} = 0.022[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 0.268 - 0.022 = 0.246 cc/cubic meter

The upper end of the interval is the sample mean added to M. So it is 0.268 + 0.022 = 0.29 cc/cubic meter

The 80% confidence interval for the population mean lead concentration is between 0.246 and 0.29 cc/cubic meter

I WILL MARK BRAINLIST, HELP PLEASE

Answers

Answer:

Step-by-step explanation:

hope it helped you in any way

9a + 18c. What is the value of the expression when a = −5 and c = −1?

Answers

1. plug in the numbers for the variables, like this: 9(-5)+18(-1)

2. solve
Hopefully this helps! Let me know if you need more explanation.

Simplify (1/2)^4
1/10
1/8
1/4

Answers

Answer:

1/8

Step-by-step explanation:

[tex] \bigg( \frac{1}{2} \bigg)^{4} = \\ \\ = \frac{1}{8} [/tex]

It’s actually 1/16 as 2^4=16

The enrolment of our school is 800. If 35 % are girls
a. What fraction are girls?
b. What fraction are boys?

Answers

Answer:

a 7/20. B 13/20

Step-by-step explanation:

800 X 35% = 280

280/800=7/20

Answer:

a. 280/800 (or 7/20 simplified)

b. 520/800 (or 13/20 simplified)

Step-by-step explanation:

a. 800 × 0.35 = 280

Fraction of girls = total girls/total enrollment = 280/800 (or 7/20 simplified)

b. Total boys = Total enrollment - total girls = 800 - 280 = 520

Fraction of boys = total boys/total enrollment = 520/800 (or 13/20 simplified)

The value of a boat is depreciating at a rate of 7% per year. In 2006, the boat was worth $17,300. Find the value of the boat in 2011. Enter the exponential decay function for this situation.
The exponential decay function is y = .

In 2011 the boat will be worth $ .

Answers

Answer:

Step-by-step explanation:

[tex]V=Ar^t\\ \\ V=17300((100-7)/100)^t\\ V=17300(0.93)^{(y-2006)}\\ V(2011)=17300(0.93)^{(2012-2006)}=\$ 11192.29[/tex]

is of 12 equal to 9?
no

Answers

Answer:

12=9

Obviously

.................

Previous studies reported that teenagers spent 8.5 hours per week, on average, on the phone. This mean is supposed to have increased, to test this hypothesis, a random sample of 500 teenagers were interviewed about how many hours per week they spent on their phones. The sample mean was 10.5 hours with a sample standard deviation of 2.35. Conduct a hypothesis test. The null and alternative hypotheses are:

Answers

Answer:

Since the calculated value of Z= 19.029 is much greater than Z (0.05) = 1.645 and falls in the rejection region we reject the null hypothesis and conclude that mean of teenagers spending time on phone per week has increased.

Step-by-step explanation:

1) Formulate the null and alternate hypothesis as

H0 : μ≤ 8.5 against the claim Ha: μ > 8.5

2) Choose the significance level ∝ =0.05

3) The test statistic under H0 is

Z= x`- μ/ s/√n

4) The rejection region is Z≥ Z(0.05)= 1.645

5) Computing the value of Z from sample information we get

Z= 10.5-8.5/ 2.35/ √500

Z= 2/ 2.35/ 22.361

Z= 19.029

26 points!!

feet. What is the volume of the box?
A box has a length of 4 feet, a width of 24 feet, and a height of 1
O A 17 cubic feet
OB. 8 cubic feet
O C. 8 - cubic feet
OD. 35 cubic feet

Answers

Answer:

yes

Step-by-step explanation:

Um none of those because it would be 96 cubic feet. V = L x W x H if you multiply 4 x 24 x 1 it equals 96

Simplify
-3(2.5-k)+0.5(7+8k)

Answers

Answer:

-7•5+3k+3•5+4k

-7•5+3•5+4k+3k

-4+7k

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