WILL GIVE BRIANLEST IF UR RIGHT PLZ SHOW UR WORK need help plz

Answer:

She was driving 51 miles per hour.

Step-by-step explanation:

51 x 4 = 204

204 / 4 = 51

Step-by-step explanation:

Confidence interval is:

CI = x ± CV · SE

where x is the mean, CV is the critical value, and SE is the standard error.

There is no difference between the population means, so x = 0.

The confidence level is 95%, so CV = 1.96.

SE = 0.69.

So the confidence interval is:

CI = 0 ± (1.96) (0.69)

CI = (-1.35, 1.35)

1.74 is outside of the confidence interval, so it is statistically significant.

Answer:

Step-by-step explanation:

same i need help

Answer:

f

Step-by-step explanation:

f

Answer: a=2x 3 b=3y 5 (2x 3 -3y 5) (4x 6 +6x 3 y5 +9y 10)

Step-by-step explanation:

Answer:

the perimeter of triangle abc is 56.4 and the perimeter of triangle GHJ is 14.1 cm the perimeter of triangle DEF

Step-by-step explanation:

Answer:

(i) False. Let A = 30° and B = 60°, then sin (A + B) = sin (30° + 60°) = sin 90° = 1 and, sin A + sin B = sin 30° + sin 60° = 1/2 + √3/2 = 1+√3/2(ii) True. sin 0° = 0 sin 30° = 1/2 sin 45° = 1/√2 sin 60° = √3/2 sin  90° = 1 Thus the value of sin θ increases as θ increases.(iii) False. cos 0° = 1 cos 30° = √3/2 cos 45° = 1/√2 cos 60° = 1/2 cos 90° = 0 Thus the value of cos θ decreases as θ increases.(iv) True. cot A = cos A/sin A cot 0° = cos 0°/sin 0° = 1/0 = undefined.

Step-by-step explanation:

Answer:

It will take him 3 days if every day he earns $95.

95 * 3 = 285

285/95 = 3

Step-by-step explanation:

Hope this helped you! <3

Corrected, the answer is 15.

Answer:

he can do things that well give him money

Step-by-step explanation:

Answer:

below

Step-by-step explanation:

First, you must find the total he has: $10

Then, you must find how much he need: $13

Then, you take the smaller number to take away from the greater number: 13-10

Finally, you subtract those two numbers to find the amount the Juan needs: $3

This value is approximate because we used the approximation pi = 3.14

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

Explanation:

For problems like this, a common approach is to break the figure into smaller pieces. Find the area of each small piece, then add up those individual areas to get the full area we're after.

------------

A = area of triangle

A = 0.5*base*height

A = 0.5*6*8

A = 24 square feet

-----------

B = area of the semicircle with radius r

B = 0.5*(area of full circle with radius r)

B = 0.5*(pi*r^2)

B = 0.5*pi*r^2

B = 0.5*3.14*4^2 .... the diameter is 8, radius is half that

B = 25.12  square feet

--------------

C = area of the full figure

C = A+B

C = 24+25.12

C = 49.12 square feet

Answer:

2x + 3 = 15

x = 6

2(6) + 3 = 15

Step-by-step explanation:

This is the answer because:

1) 2 x 6 = 12, 12 + 3 = 15

2) 2 + 6 + 3 = 11

Therefore, the answer is 2(6) + 3 = 15

Hope this helps!

Answer:

x=6

Step-by-step explanation:

2x+3=15

15-3=12

12/2=6

x=6

Answer:

− 21

Step-by-step explanation:

-7(-3)(-1)

21(-1)

-21

Answer:

a

Step-by-step explanation:

I think it's a I am not sure

Answer:

Karla=16 Luis=18 Maria=21

Answer:

It is $1.50 or $18 per dozen tennis balls

Step-by-step explanation:

1. Divide the total price by the number of tennis balls.

36/24= 1.50

So it cost $1.50 per tennis ball.

2. Then solve by dividing the total price by the number of tennis balls:

36/2= $18

"So it cost $18 per dozen tennis balls"

It is $1.50 or $18 per dozen tennis balls

Answer:

You would multiply 1/4 by 2/2 in order to get a common demoninator. The answer is 1/8.

Step-by-step explanation:

Answer:

A) 0

B) 10

C) 0

D) I dont understand that one

Step-by-step explanation:

~~—☆☆☆——☆☆☆——☆☆☆——☆☆☆——☆☆☆—~~

Answer:

Hello! I hope I’m correct!! :)

Step-by-step explanation:

Solving a:

→ 5 - 5

→ = 0

___________________________

Solving b:

→ 5 + 5

→ = 10

____________________________

Solving c:

→ 5 - 5

→ = 0

_____________________________

For d, there is no answer since you can’t really solve it

Hope this helps! If you have any questions about this, feel free to ask! Have a wonderful day! ^-^

#Thank you so much for using brainly!

Best regard! :D

~By, BrainlyAnime~

~~—☆☆☆——☆☆☆——☆☆☆——☆☆☆——☆☆☆—~~

Answer:

i think its 21

Step-by-step explanation:

Answer:

e ok

Step-by-step explanation:

ill make something after this brain :D

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Answer:

741 miles  in 19 hours

Step-by-step explanation:

Answer:

7 ft per in

Step-by-step explanation:

If she has a scale where 49 feet is represented by 7 inches, then the ratio is:

49 feet to 7 inches  which can be written as:49 ft /7 in = 7 ft / in

So the scale is 7 feet per inch

Answer:

The answer is below

Step-by-step explanation:

The z score is used to determine by how many standard deviations the mean is above or below the raw score. If the z score is positive then the raw score is above the mean while if the z score is negative then the raw score is below the mean. The z score is given by:

[tex]z=\frac{x-\mu}{\sigma}\\ \\\mu=mean, \sigma=standard\ deviation[/tex]

a)

From the normal distribution, 0.5 corresponds to a z score of 0.

z = 0.

b) From the normal distribution, an area of 0.9826 to the left corresponds to a z score of 2.11.

c) An area to the right of 0.1423 = an area of 0.8577 ( 1- 0.1423) to the left.  From the normal distribution, an area of 0.8577 to the left corresponds to a z score of 1.07

Answer: Height = 14

Step-by-step explanation: 10.5 / 0.75 = 14

Answer:

The height is 14 inches

Answer:

[tex]y = \frac{4}{3}x[/tex]

Step-by-step explanation:

Given:

Variation: Direct Variation.

This can be represented as:

[tex]y\ \alpha\ x[/tex]

[tex]y = 16; x = 12[/tex]

Required

Write out the equation

First, the variation has to be converted to an equation

[tex]y\ \alpha\ x[/tex]

[tex]y = kx[/tex]

Where k represents constant of variation.

Substitute 16 for y and 12 for x

[tex]16 = k * 12[/tex]

Solve for k

[tex]k = \frac{16}{12}[/tex]

[tex]k = \frac{4}{3}[/tex]

To get the equation, we simply substitute 4/3 for k in [tex]y = kx[/tex]

[tex]y = \frac{4}{3}x[/tex]

This question is incomplete

Complete Question

In a test with a mean of 100 and a standard deviation of 10, what is the standard score for a test score of 120?

Answer:

The standard score = 2

Step-by-step explanation:

The formula for Test (T) score is given as:

T score = zσ + μ

z = Standard or z score = ??

Standard deviation (σ) = 10

Mean (μ) = 100

Test score = 120

120 = 10z + 100

120 - 100 = 10z

20 = 10z

z = 20/10

z= 2

Therefore, the standard score = 2

Answer:

so the answer is  

x = -6/5, - 14/ 5

Step-by-step explanation:

i hope this is what your looking for

Answer:

5/6 and -26/5

Step-by-step explanation:

-16 divide -2 = 8

Add 8 = 16

Remove absolute value

Positive 16 - 10 = 6

Divide 5 = 6/5

Negative -16 - 10 = -26

Divide 5 = -26/5

Answer:

[tex]if \: {i}^{k} = 1. \: \iff\:then \: k = 0 .\\ if \: {i}^{k} = i. \: \iff\: then \: k = 1. \\ if \: {i}^{k} = - 1. \: \iff\: then \: k = 0 \: and \:i = - 1 . \\ if \: {i}^{k} = - i. \: \iff \:then \: k = 1 \: and \: i = - i.[/tex]

Step-by-step explanation:

♨Rage♨

Answer: The answer is 2.4

Step-by-step explanation:Hope this helps

Answer:

Step-by-step explanation:

73% is shaded

Equivalent ratio 73/100 times 2

146/200 is the ratio

0.73 is the decimal

73/100 is the fraction

Answer:

73%

Step-by-step explanation: