which pairs of lines were parallel?
A. a and b
B. a and c
C. c and d
D. b and d

Answer:

I'm pretty sure it's 3

Step-by-step explanation:

h=3(V/πr2)

I just plugged it into this equation

Answer:

Abbe: 10%, or [tex]\frac{1}{10}[/tex]

Morgan: 11.1% or [tex]\frac{1}{9}[/tex]

(The 1 repeats forever)

Hope this helps!

Answer:

48

Step-by-step explanation:

In pemdas, powers and roots always come first

3 * 2^t

3 * 2^4

3 * 16

Then simplify the rest

48

Answer:

x = 43.5 or x = 87/2

Step-by-step explanation:

(x - 3)2 = 81

2x - 6 = 81

2x = 87

x = 43.5

Complete question :

Online photos: A poll surveyed 1765 internet users and found that 865 of them had posted a photo or video online. Can you conclude that less than half of internet users have posted photos or videos online? Use the α 0.01 level of significance and the P-value method with the TI-84 calculator.

1. State the appropriate null and alternate hypotheses.

2. Compute the P-value.

Answer:

H0 : p = 0.5

H1 : p < 0.5

P value = 0.200454

Step-by-step explanation:

Given that :

Claim : Less than half internet users have posted photos or videos online.

Sample Proportion (p) = 865 / 1765 = 0.4900

The null hypothesis : H0 : p = 0.5 (that is half of internet users have posted photos online.

The alternative hypothesis : H1 : p < 0.5 (that is less than half of internet users have posted photo or video ;

P = 0.5

q = 1 - 0.5 = 0.5

The test statistic :

Z = p - p0 / sqrt(p0 * (q/n))

Z = (0.49 - 0.5) / sqrt(0.5 * (0.5/1765))

Z = - 0.01 / sqrt(0.5 *0.0002832)

Z = - 0.01 / sqrt(0.0001416)

Z = - 0.01 / 0.0119013

Z = - 0.8402443

The corresponding p value from the z statistic score at α = 0.01

= 0.200454

Answer:

I think it's dilated by a scale factor of 5. Because the black one is 3 squares long and the purple one is 15. So divide those and you get 5! and to check just multiply 5x3 to find the length of the purple one!

Step-by-step explanation:

Hope this helps! please mark brainliest! :)

Answer:

A) Null hypothesis; H0: μ = 3500

Alternative hypothesis;Ha μ ≠ 3500

B) t = -1

C) the rejection region will be;

p-value < 0.05

D) Conclusion is that there is no sufficient evidence to support the claim that Ankara U. students average is not 3500 calories per day.

Step-by-step explanation:

We are given;

Population mean; μ = 3500

Population standard deviation; σ = 500

Sample mean; x¯ = 3400

Sample size; n = 25

We want to find enough evidence to conclude that Ankara U. students average is not 3500 calories per day.

Thus, the hypothesis is defined as;

A) Null hypothesis; H0: μ = 3500

Alternative hypothesis;Ha μ ≠ 3500

B) sample size is less than 30, thus we will use a t-test.

Formula for the test statistic is;

t = (x¯ - μ)/(σ/√n)

t = (3400 - 3500)/(500/√25)

t = -100/(500/5)

t = -1

C) since the sample is small, let's assume a significance level of 0.05.

Thus,the rejection region will be;

p-value < 0.05

D) from online p-value from t-score calculator attached using;

t = - 1; DF = 25 - 1 = 24; significance level = 0.05 and two tailed hypothesis, we have;

p-value ≈ 0.3273

This is greater than the significance value of 0.05.

Thus, we will fail to reject the null hypothesis and conclude that there is no sufficient evidence to support the claim that Ankara U. students average is not 3500 calories per day.

Answer:

-7

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

|13-15|=|-2|=2

|-5|=5

2-5=-3

Answer:

x = 5, AB = 27, BC = 19

Step-by-step explanation:

From the diagram

AB + BC = AC , substitute values

4x + 7 + 3x + 4 = 46 , that is

7x + 11 = 46 ( subtract 11 from both sides )

7x = 35 ( divide both sides by 7 )

x = 5

Thus

AB = 4x + 7 = 4(5) + 7 = 20 + 7 = 27

BC = 3x + 4 = 3(5) + 4 = 15 + 4 = 19

Answer:

1. x = 5

2. AB= 27

3. BC = 19

Step-by-step explanation:

Solving for X:

The entire segment is 46. Parts AB and BC make up the whole thing. So, to find x, add both expressions and set them equal to 46.

4x+7+3x+4=46 (combine like terms)

7x+11=46 (subtract 11 from both sides)

7x = 35 (divide by 7)

x = 5

Finding AB:

Plug 5 in for x and evaluate the expression.

4(5)+7

20 + 7= 20

AB is 27

Finding BC:

Plug in 5 for x and evaluate the expression.

3(5)+4

15+ 4=19

Check your work.

Add the values of AB and BC to make sure they add up to 46, which is AC.

27 + 19 = 46, so this is correct.

Answer:

The answer would be A.

Fun Fact - Cats have fewer toes on their back paws.

Like most four-legged mammals, they have five toes on the front, but their back paws only have four toes. Scientists think the four-toe back paws might help them run faster.

Answer:

A

Step-by-step explanation:

They are both negative and that helps it.

Hope this helps!!!

The  values of g and h to make the expression g×h negative are g=−1; h=1 and g=1; h=−1.

An expression is combination of variables, numbers and operators.

The given expression is g×h where g and h are real numbers

The expression g×h is negative when either g or h is negative.

Since multiplying two negative numbers results in a positive number

The only way for the expression to be negative is if one of the numbers is negative and the other is positive.

So when g=−1 and h=1

The expression  g×h = -1×1 = -1.

when g=1 and h=-1

The expression  g×h = 1×-1 = -1.

Hence,  g=−1; h=1 and g=1; h=−1 are the  values of g and h to make the expression g×h negative

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ3

Answer: 7

They are seven points away from each other.

Starting on L, you have one. For every time you jump over one, you add one to your final answer. By the time you reach R, you'll be seven points away from L.

Hope this helps.

Answer:

5.00 -2.40= 2.60

2.60-1.33= 1.27

The answer is 1.27

Step-by-step explanation:

Answer:

85°

Step-by-step explanation:

x+32°+63°=180°(being sum of interior angle of triangle)

x=180°-95°

:. x=85°

Answer:

A linear pair is a pair of adjacent angles formed when two lines intersect

Answer:

20 I think

Step-by-step explanation:

I mean I would say it is 20

Answer:

she ran 0.325 more on tuesday then tursday

Step-by-step explanation:

because i know

Answer:

The correct answer is the last option (d.)

Step-by-step explanation

The value of the expression is -24.

Since the equation is [tex]4^2-5\times 2^3[/tex]

So, the value should be

[tex]= 4^2-5\times 2^3\\\\[/tex]

= 16 - 5(8)

= 16 -40

= -24

Here we use PEDMAS

P denotes for parenthesis

E denotes for exponents

D means divide

M means multiply

A means addition

S means subtraction

Therefore, we can conclude that The value of the expression is -24.

Learn more about expression here: https://brainly.com/question/2860139

Answer:

Results below

Step-by-step explanation:

Equation of the line

A straight line can be written in the form:

y = ax + b

Where a and b are constants and x is the independent variable.

The essential condition for an equation to be linear is that the x must be powered to the exponent 1, which is usually not written.

From the equations presented in the table:

[tex]y = x^1+2[/tex] is linear because the exponent of the x is 1

y = 5(x+2) = 5x + 10 is linear with a=5 and b=10.

y = x is linear with a=1 and b=0

[tex]y = x^2+1[/tex] is not linear because the exponent of x is 2

[tex]y = x(x) = x^2[/tex] is not linear because the exponent of x is 2

The table below summarizes the results

Answer:

21/33

Step-by-step explanation:

Multiply both numbers by 3

Answer:

24 ounce one

Step-by-step explanation:

You divide 3.9 by 24 round it to 6 times .52 to 6 it is 3.12

2.63<3.12

Answer:

1:4 & 6:24

Step-by-step explanation:

hope this help ☆

Answer:

12:48  and  36:144

i think its B ......

The difference of the polynomials (5x3 + 4x2) – (6x2 – 2x – 9) is 5x3 – 2x2 + 2x + 9.

A polynomial is an expression consisting of variables and coefficients,

5x3 + 4x2 - (6x2 - 2x - 9)

= 5x3 + 4x2 - 6x2 + 2x + 9

= 5x3 - 2x2 + 2x +

Answer:

There are 4

Step-by-step explanation:

You have the 1st 2nd 3rd and 4th quadrant.

They go from top right to top left then bottom left then to bottom right.

Answer:

34191.7πin³/sec

Step-by-step explanation:

Volume of circular come = 1/3pi x r² x h

When we differentiate this formula we have

dv/dt = 1/3π[r²dh/dt + 2rhdr/dt]

We have the following information

r = 138

H = 143 inch

dr/dt = 1.4

dh/dt = -2.8

When we plug into the formula

1/3π[130² x -2.8 + 2x138x143x1.4]

= 34191.7πin³/sec

Answer:

B.) - ⅖ -⁴⁄₃ᵖ and

D.) -⁴⁄₃ᵖ + (- ⅖)

Step-by-step explanation:

-⁴⁄₃ᵖ - ⅖ is equivalent to - ⅖ -⁴⁄₃ᵖ and -⁴⁄₃ᵖ + (- ⅖)

Thus, The answer is - ⅖ -⁴⁄₃ᵖ and -⁴⁄₃ᵖ + (- ⅖)

-TheUnknownScientist

Answer:

B. 7n

Step-by-step explanation:

Gina popped 7 times more than Sam, the keyword is times, so u have to multiply the amount of balloons Sam poppes, n, with 7

If it said Gina popped 7 balloons more, then it would be 7 + n