Please help me answer this :) and explain how you got your answer ! ( will give brainslt )

Answer:

[tex] \frac{1}{2} [/tex]

Step-by-step explanation:

Its asking for how long did she watch for both videos.

[tex] \frac{3}{8} + \frac{1}{8} = \frac{4}{8} [/tex]

4/8 is half. so simplest form would be

[tex] \frac{1}{2} [/tex]

Answer:

1/2 minutes

Step-by-step explanation:

you add the two fractions together and because they have a common denominator you just add across.

1/8+3/8=4/8

now we simplify

the numerator and denominator can both be divided by 4.

4÷4=1

8÷4=2

1/2

Step-by-step explanation:

Given: Radius , r =21 cm

The angle at the center of the circle, n° =140°

Length of an arc =?

W.K.T Formula, Length of an arc = 2πr( n°÷360°) units

= 2*(22/7)*21*(140°/360°)

= 154/3

= 51.33cm

Answer:

2*(22/7)*21*(140°/360°)

= 154/3

= 51.33cm

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Find 15% of 12,800,

[tex]\frac{15}{100}[/tex] ×[tex]\frac{12,800}{1}[/tex]

= 1,920

9514 1404 393

Answer:

  1/18

Step-by-step explanation:

18 is a suitable denominator for both fractions:

  5/6 = 15/18

  7/9 = 14/18

Then the difference is ...

  5/6 -7/9 = 15/18 -14/18 = (15 -14)/18 = 1/18

Answer:

Step-by-step explanation:

It’s 20 Feet

Answer:

I’m pretty sure it’s -2500

Step-by-step explanation:

Answer:

I think it would be x = -2500

Step-by-step explanation:

You square both sides to get rid of the square root and get -4x = 10000 then divide 10000 by -4 to get -2500

Answer:

Saturday

Step-by-step explanation:

I think

Answer:

i think letter d

Step-by-step explanation:

i hope you know the answer

Answer:

26%

Step-by-step explanation:

Answer:

x mean multiply xd

Step-by-step explanation:

Answer:

x=16

Step-by-step explanation:

Answer:

there are 12 dogs.

Step-by-step explanation:

d= dogs              now plug in the 4 into your equation.

c= cats                  d=3(4)

d+c=16                   d=12

3c+c=16

4c=16                        SO THEREFORE THERE ARE 12 DOGS :)

c=4            

Answer:

i think it might be 15m

Step-by-step explanation:

Answer:

12...you already figured it out but alr

Step-by-step explanation:

Answer:

$67415.73

Step-by-step explanation:

we know that

FV = P(1+r/n)^nt

where FV = future value

P= Present values =$18000

r= rate of interest =9%

n= year. = 15 year

here , the interest is compounded semi-annually

this means  n= 30 , r= 4.5%

plugging the value we have

FV = 18000(1.045)^30= $67415.7264= $67415.73

Answer:

B

Step-by-step explanation:

edge2020

Answer:

B.

Step-by-step explanation: EDGE 2020

Answer:

i think A

Step-by-step explanation:

I think it's ''4 4/5"..

9514 1404 393

Answer:

  18 feet

Step-by-step explanation:

The ladder length represents the hypotenuse of a right triangle with a base of 9 and an unknown height (h). We can find that height by using the Pythagorean theorem.

  9² +h² = 15²

  h² = 225 -81 = 144

  h = √144 = 12

So, the ladder extends 12 feet up the side of the building. That is the height of the roof. The top of the flagpole is 6 feet above that, so the top of the flagpole is ...

  12 ft + 6 ft = 18 ft

above the ground.

The height to the top of the flagpole is 18 feet.

Answer:These are the following dimensions:

1

.

base

=

5

f

t

2

.

hypotenuse

=

15

f

t

3

.

height

=

?

f

t

To solve for the height, use the Pythagorean Theorem, which is:

a

2

+

b

2

=

c

2

where:

a

=

height

b

=

base

c

=

hypotenuse

Substitute your known values into the equation to find the height:

a

2

+

b

2

=

c

2

a

2

+

(

5

)

2

=

(

15

)

2

a

2

+

25

=

225

a

2

=

200

a

=

√

200

a

=

10

√

2

⇒

simplify the radical

a

≈

14.14

f

t

∴

, the ladder goes approximately  

14.14

f

t

up the building

Step-by-step explanation:

Answer:

(-25 + 4 squared) x 7

( -25 + 16) x 7

-9 x 7

-63

Step-by-step explanation:

Answer: D. $43.75

Step-by-step explanation:

Answer:

2m+5

Step-by-step explanation:

the x value is 2 and the y intercept is 5

Answer:

b bro and u get a good day too

Answer:

Pretty sure its C  >:]

Explanation:

    It's the third option because if you put a piece of paper in the corner its a lil more than 90 degrees, so it wouldn't be B (there's a little more white space left). And it obviously wouldn't be A because that's self explanatory, lol.

    And you can't make a perfect square in the inside of the angle so that's another way to tell.

Extra:

I hope you have an amazing day too,, you seem very nice ^-^   good luck on your schoolwork today :]

Answer

what r the options? a b c d?????

i wuld say it is 2.5

Step-by-step explanation:

Answer:

This explanation is not correct

Explanation:

Significance level is the probability that the null hypothesis rejected is in fact true. If we say there is a significance level of 0.10 or 10%(α=0.10 level) then there is a 10% chance of incorrectly rejecting the null hypothesis when there is actually no difference.

If we wish to reach a conclusion on rejection or acceptance of the null hypothesis, we could use the p value(the probability that observed results or more extremee results are true given null hypothesis)which we compare with the significance level to conclude. If the significance level is 0.10 and p value is 0.07(since p value is less than significance level) , we reject the null hypothesis and vice versa.

The significant level, α = 0.05 level specifies a probability of the correctness of the null hypothesis.

Reasons:

The significant level specifies the the likelihood of rejecting a true null

hypothesis, such that a 5% significance level indicates that the risk of

drawing a conclusion that there is a difference in a sample, when the

samples are similar is 5%, and therefore, the probability that null

hypothesis is true is 5% or 0.05.

The level of significance is a specification that indicates the amount of

evidence required within a sample to allow the rejection of the null

hypothesis, and reach a conclusion that the observed effect is statistical

significant at the α = 0.05 level.

Therefore;

The statement by the student that "This means that the probability that the null hypothesis is true is less than 0.05" is correct.

Learn more about hypothesis testing here:

https://brainly.com/question/13122036

Answer:

$45

Step-by-step explanation:

x=1.5(30)

x=45

Answer:

B. 91000

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

Initial no of students = 16,000

Final no of students = 20,000

We need to find the percent increase in enrollment.

The increase in no of students = 20,000 - 16,000

= 4000

Percentage = (increase/initial no of students) × 100

[tex]\%=\dfrac{4000}{16000}\times 100\\\\=25\%[/tex]

Hence, the percent increase is 25%.