Select all that apply! Pleaseee I need help!!!!

Answer:

no

Step-by-step explanation:

it does not have any (0,0) value

Given:

[tex]\cos^4 \alpha+\sin^4\alpha=\dfrac{1}{4}(3+\cos 4 \alpha)[/tex]

To prove:

The given statement.

Proof:

We have,

[tex]\cos^4 \alpha+\sin^4\alpha=\dfrac{1}{4}(3+\cos 4 \alpha)[/tex]

[tex]LHS=\cos^4 \alpha+\sin^4\alpha[/tex]

[tex]LHS=(\cos^2 \alpha)^2+(\sin^2 \alpha)^2[/tex]

[tex]LHS=(\cos^2 \alpha+\sin^2\alpha)^2-2\sin ^2\alpha\cos^2 \alpha[/tex]     [tex][\because a^2+b^2=(a+b)^2-2ab][/tex]

[tex]LHS=(1)^2-2(1-\cos^2 \alpha)\cos^2 \alpha [/tex]      [tex][\because \cos^2 \alpha+\sin^2\alpha=1][/tex]

[tex]LHS=1-2\cos^2 \alpha+2\cos^4 \alpha [/tex]

Now,

[tex]RHS=\dfrac{1}{4}(3+\cos 4 \alpha)[/tex]

[tex]RHS=\dfrac{1}{4}[3+(2\cos^2 2\alpha-1)][/tex]        [tex][\because \cos 2\theta=2\cos^2\theta -1][/tex]

[tex]RHS=\dfrac{1}{4}[2+2\cos^2 2\alpha][/tex]

[tex]RHS=\dfrac{1}{4}[2+2(2\cos^2 \alpha-1)^2][/tex]        [tex][\because \cos 2\theta=2\cos^2\theta -1][/tex]

[tex]RHS=\dfrac{1}{4}[2+2(4\cos^4 \alpha-4\cos \alpha+1)][/tex]        [tex][\because (a-b)^2=a^2-2ab+b^2][/tex]

[tex]RHS=\dfrac{1}{4}[2+8\cos^4 \alpha-8\cos \alpha+2][/tex]

[tex]RHS=\dfrac{1}{4}[4+8\cos^4 \alpha-8\cos \alpha][/tex]

[tex]RHS=1+2\cos^4 \alpha-2\cos \alpha[/tex]

[tex]RHS=1-2\cos^2 \alpha+2\cos^4 \alpha [/tex]

[tex]LHS=RHS[/tex]

Hence proved.

Answer:

F&H are vertical angles, D&H are corresponding angles, E&H are adjacent angles, and B&H are alternate interior angles.

Step-by-step explanation:

Hope this helps. Tell me if you need and explanation.

Answer: F&H are vertical angles, D&H are corresponding angles, E&H are adjacent angles, and B&H are alternate interior angles.

Step-by-step explanation:

Hope this helps. Tell me if you need and explanation.

Answer:

-2x-3x=4

-5x=4

x= -4/5

Step-by-step explanation:

Answer:

Sheet metal costs $20 per square foot.

Step-by-step explanation:

7.6x - 2.3x = 106

We are finding the value of x.

5.3x = 106

Divide both sides by 5.3.

x = 106 ÷ 5.3

x = 20

                                       Answer and Explanation

__________________________________________________________

__________________________________________________________

Sheet metal costs 20 dollars per square foot, and we can figure this out by multiplying the 20 by the numbers and subtracting them.

__________________________________________________________

[tex]7.6x-2.3x=106[/tex] but what does x equal? ( 20 )

[tex]7.6\cdot20[/tex] = [tex]152[/tex]

[tex]2.3\cdot20[/tex] = [tex]46[/tex]

__________________________________________________________

[tex]152-46[/tex] = [tex]106[/tex]

Which is the same in the question, so x = 20.

__________________________________________________________

Hope this helps! <3

__________________________________________________________

I'm not too sure but I think it's option

1. No, because only one angle of the triangle is congruent.

Answer:

A

Step-by-step explanation:

Becuase 4 divided that number is 2

6 divided by 3 is 2

and so on

Answer:

-6x - 8

Step-by-step explanation:

-2(3x+4) = -6x - 8

this means the -6x - 8 is equivalent

Answer:

M = 9

Step-by-step explanation:

94 = 31 + 7m

63 = 7m

9 = m

Hope this helps. Pls give brainliest.

Answer:

X intercepts (-30,0)

Y intercepts (0,-3)

Answer:

The answer is 17.

Step-by-step explanation:

[tex]12+\frac{k}{8}[/tex] when k=40

[tex]12+\frac{40}{8}[/tex]

12 + 5

17

Hope that helps and please give me brainliest!!

Answer:

C

Step-by-step explanation:

First of all, we can see for both of the slopes, the Y intercept is both -4, and +4. Now that we know that information, we can go on to "mx" or the slope. now since we've narrowed down the answers, we have C and D left. Now in C, the x for "x+4" doesn't specifically say the value. Now for the equation below x+4 (for C) shows -2x-4, which does show the value of X, which is correct, because it shows in the graph that there's -2x. Now on D, they put the negative symbol on X, which doesn't say the value, but there's no negative in "2x-4" for 2x. and there's no slope that goes through positive 2. Therefore it would be C.

Answer:

The different ways a football team cold score 63 points are by having;

1) 3 touchdowns and 14 field goals

2) 6 touchdowns and 7 field goals

Step-by-step explanation:

The given parameters are;

The worth of each touchdown = 7 point

The worth of each field goal = 3 points

The number of touch down ≥ 1

The number of field goals ≥ 1

Let x represent the number of touchdowns and let y represent the number of field goals, we have;

7·x + 3·y = 63...(1)

x + y ≥ 2...(1)

Making y the subject of the equation, 7·x + 3·y = 63, gives;

3·y = 63 - 7·x

y = 21 - (7/3)·x

Making y the subject of the inequality, x + y ≥ 2, gives;

y ≥ 2 - x

From the attached graph created with Microsoft Excel, we have the points where x ≥ 1, that have a whole number value of y ≥ 0 as follows;

1) When x = 3, y = 14 gives 7×3 + 3×14 = 63

2) When x = 6, y = 7 gives 7×6 + 3×7 = 63

Therefore, the different ways a football team cold score 63 points are;

1) 3 touchdowns and 14 field goals

2) 6 touchdowns and 7 field goals.

Answer:

63 points

1) 3 touchdowns and 14 field goals

2) 6 touchdowns and 7 field goals

Answer:

The correct Option is Option A

Account B because the principal of Account B is $300 and the principal for Account A is $150

Step-by-step explanation:

Interest earned from Account A = $ 4.50

Interest earned from Account B = $22.50

Time t = 18 months

Interest rate for Account A = 2%

Interest rate for Account B = 5%

We need to find which account has greater principal

The formula used to calculate principal is: [tex]Interest=Principal\times r \times t[/tex]

where r is rate and t is time

Finding Principal for Account A:

Interest earned from Account A = $ 4.50

Time t = 18 months = 1.5 years

Interest rate for Account A = 2% = 0.02

Putting values and finding Principal

[tex]Interest=Principal\times r \times t\\4.50=Principal\times0.02\times1.5\\Principal=\frac{4.50}{0.02\times1.5} \\Principal=\frac{4.50}{0.03} \\Principal=150[/tex]

So, The Principal Amount for Account A = $150

Finding Principal for Account B:

Interest earned from Account B = $ 22.50

Time t = 18 months = 1.5 years

Interest rate for Account A = 5% = 0.05

Putting values and finding Principal

[tex]Interest=Principal\times r \times t\\22.50=Principal\times0.05\times1.5\\Principal=\frac{22.50}{0.05\times1.5} \\Principal=\frac{22.50}{0.075} \\Principal=300[/tex]

So, The Principal Amount for Account B = $300

So, the correct Option is Option A

Account B because the principal of Account B is $300 and the principal for Account A is $150

Answer:

All answers apply

Step-by-step explanation:

Although it may seem like it doesnt, the absolute value of -12 is just 12, which ends up still being less than 14.

Absolute value takes away the negative and leaves positive number as a result.

Answer:

all of them since it's absolute value all numbers are below 14

Answer:

560

Step-by-step explanation:

2 x (40+30) x 4

2 x 70 x 4

560

hope this helps, pls mark brainliest :D

560

Step-by-step explanation:

2 x (40+30) x 4

2 x 70 x 4

560

Answer:

The answer would be C, hope i helped

Step-by-step explanation:

First you have to get x by itself. So you do 90-90= 0 and 30-90= -60 which gets:

90 - 3/2x < 30       to     -3/2x < -60

Then, you do -3/2 - (-3/2)= 0 and do the same to -60. -60 - (-3/2) = -58.5

which makes it look like      

X = -58.5

-58.5 is a smaller number than -40 which means, when you fill it in for x it works      

-58.5 ≤ -40

P.S. to put a line under the < and > you    (≤ and ≥)   hold option then click on which ever one you need

Answer:B 19.1 feet

Step-by-step explanation:

The value of the x is 19.1 feet.

"It is an ordered pair of numbers a and b, written [tex]\frac{a}{b}[/tex] where b does not equal 0."

"When two ratios are equal then they are said to be in proportion."

For given question,

A small triangle has a base of 1.7 feet and height of 9.3 feet.

A larger triangle has a base of 3.5 feet and height of x feet.

Since it is the enlargement of the triangle, the sides of both the triangle must be in proportion.

[tex]\Rightarrow \frac{1.7}{3.5}= \frac{9.3}{x}\\\\\ \Rightarrow 1.7\times x=3.5\times 9.3\\\\ \Rightarrow 1.7\times x=32.55\\\\ \Rightarrow x=19.14[/tex]

Therefore, the value of the x is 19.1 feet.

Learn more about the ratio and proportion here:

https://brainly.com/question/26974513

#SPJ2

Answer:

t+b_< 155

Step-by-step explanation:

Answer:

x≥25

Step-by-step explanation:

Step one:

given data

Jaxon must sell at least 49 rolls of wrapping paper to support the robotics club fundraiser

We are told that he has already sold 24 rolls of wrapping paper.

Step two:

let x be the number of rolls remaining to be sold,

hence,

x≥49-24

x≥25

Therefore the inequality for the situation is  x≥25

which reads that x must be greater than or equal to 25

Answer:

decrease

Step-by-step explanation:

Answer:

decrease

Step-by-step explanation:

Answer:

its eight on the y axis

Step-by-step explanation:

Answer:

i got you fam

Step-by-step explanation:

its b fam because the top x value goes by 1 then 2 and the y value goes from 2 to 4  

Answer: 141 i think

Step-by-step explanation:

Step-by-step explanation:

yes dear. .............

Answer:

80%

Step-by-step explanation:

Hope this helps :)