Three increased by two times a number is the same as five less than nine times the number.

From up to down in justification :

1) Subtraction property of equality

2) Simplification

3) Subtraction property of equality

4) Simplification

5) Division property of equality (( I'm not sure))

6) Simplification

Answer:

Subtract

simp

subtract

simp

multiply

simp

Step-by-step explanation:

Answer:

D - cos(157)

Step-by-step explanation:

Cos sum angle identity

cos(A+B) = cosAcosB - sinAsinB

103+54=157

The correct answer to the question is Cos 157

There are two ways to solve this question:

Evaluate: Cos103Cos54 – Sine103Sine54

This can be obtained as follow:

Cos103Cos54 – Sine103Sine54

= –0.1322 – 0.7883

Next, we shall evaluate each option given in the question to see which will be equivalent to –0.9205. This is illustrated below:

Sine 49 = 0.7547

Cos 49 = 0.6561

Sine 157 = 0.3907

From the above evaluation, we can see that Cos 157 is equivalent to Cos103Cos54 – Sine103Sine54

Thus, Cos 157 is the correct answer to the question.

Again, we can apply the addition formula from trigonometry.

Cos (A – B) = CosACosB + SineASineB

Cos (A + B) = CosACosB – SineASineB

Sine (A + B) = SineACosB + SineBCosA

Sine (A – B) = SineACosB – SineBCosA

Comparing

Cos103Cos54 – Sine103Sine54 with the formula given above, it is very clear that:

Cos103Cos54 – Sine103Sine54 = Cos 157

Cos103Cos54 – Sine103Sine54 = –0.9205

Therefore, Cos 157 remains the correct answer to the question.

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Answer:

Undefined.

Step-by-step explanation:

When using the formula y2-y1/x2-x1, the result comes out as -4/0. Any number over a 0 is undefined.

The required amount of money that a customer be charged is, $25.55.

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

We have to given that;

The markup on a restaurant meal is 250%.

And, A meal cost $7.30 to produce.

Now, The markup price on the meal is given by,

⇒ 250% of $7.30

⇒ 250/100 × $7.30

⇒ 5/2 × $7.30

⇒ $18.25

Therefore, The amount of money that a customer be charged before tax and tip is,

⇒ $7.30 + $18.25

⇒ $25.55

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Answer:

Hats cost $15, T-Shirts cost $25, Jackets cost $45

If this was helpful please mark brainliest, have a great day!

Answer:

∠L = 54°

Step-by-step explanation:

5x + 2x + 3x = 180 (all angles in a triangle add up to 180)

10x = 180

x = 18°

∠L = 3x

sub x = 18

3(18) = 54

∠L = 54°

Easy buddy....

[tex] - 6 \times ({ - 2})^{ - 3} \times ({4})^{2} = [/tex]

[tex] - 6 \times ({ - \frac{1}{2} })^{3} \times 16 = \\ [/tex]

[tex] - 6 \times ( - \frac{1}{8}) \times 16 = \\ [/tex]

16 simplifies to by 8 and equals 2

[tex] - 6 \times ( - 2) = 12[/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

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Answer:

x inntercept is 2

Step-by-step explanation:

Answer:

y = 1/2x -.5

Step-by-step explanation:

We know that is the line is parallel to the equation then the slopes are going to be the same we just have to find the a different y-intercept.

It's a simple as this just plug the points into the equation you have like this.

(-7,-4) (PLUG IN)

-4 = 1/2(-7) +b (I do plus be so we can get another y intercept)

-4 = -3.5 + b (add 3.5 on each side)

-.5 = b

the equation parallel to the first one is...

y = 1/2x -.5

Answer:

b

Step-by-step explanation:

b

Answer:6/12

Step-by-step explanation: you find the common denominator (12 in this case) and multiply 3 by 4 to get that,then you multiply one to get 4.And finally you can add (terrible explanation)

Answer:

D) 1,020 square units

Step-by-step explanation:

36x48=1728

24x32=768

6x10=60

1728-768+60=1020 square units

Answer:

102.5 is the answer sorry if u get I wrong

Answer:

should be around 3.9 exact answer is 3.864

Step-by-step explanation: subtract the percentage from the original depth

Answer:

x = 6/7

Step-by-step explanation:

Answer:

option b: square root

Step-by-step explanation:

just got correct on edge 2020

The family of the function belongs to square root.

We can solve this by understanding some types of functions

This is an expression that relates two variable to one another.

In this question, we are looking for the family of the equation.

The function given is

[tex]y = (x + 2)^\frac{1}{2} + 3[/tex]

The options given here are

This is a polynomial that the variable have the highest power of 2. An example of this is [tex]y = ax^2 + bx + c[/tex]

This a function in which the variable is a square root to the main function.

An example of this is [tex]y = \sqrt{x}[/tex]

This is a function in which one of the variable has an exponential function to the other. An example of this is [tex]y = 2e^x[/tex]

This is a function in which one of the variable is inverse to the other one. An example of this is [tex]y = \frac{1}{x}[/tex]

From the above explanation, we can see that the function

[tex]y = (x + 2)^\frac{1}{2} +3\\y = \sqrt{x+2} + 3[/tex]

is a square root function

Learn more on functions here;

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I have no idea whether those numbers are correct, and I'm not gonna bother looking them up.

But you gave us a speed and a distance, and you asked for a time.

We can just go ahead and use the formula:  Time = (distance) / (speed) .

IF your numbers are true, then

Time = (distance) / (speed)

Time = (3.55 x 10⁹ mi) / (1.25 x 10⁷ mi/min)

Time =  (3.55 x 10⁹ / 1.25 x 10⁷) minutes

Time =  2.84 x 10² minutes

Time = 284 minutes

Time = 4 hours 44 minutes

Answer:

-28

Step-by-step explanation:

Remember the order of operations: pemdas (parenthesis, exponent, multiply, divide, add, subtract). Just simplify the expression.

22 - 53 + 3

(22-53) + 3

-31 + 3

-28

Answer:

Your answer is: -28

Simplify the expression.

Step-by-step explanation:

Hope this helped : )

Answer:

20 lbs cost $10

Step-by-step explanation:

36 lbs= $180

x        = $10

Let's use the cross method

36*10 = 180x

360 = 180x

360/180 = 180x/180

20= x

20 lbs cost $10

I know, I was also shocked with the answer but trust me :) I checked the answer. Hope this helps!

Answer:

D)y=5x³ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

Answer:

y = 5x^3

Step-by-step explanation:

If there is an exponent other than 1 on a variable, then it is not linear.

Answer: y = 5x^3 since the exponent on x is 3.

Answer:

Step-by-step explanation: The answer is

6y+10

Answer:

The answer is 6y + 10

Answer:

110     Brainliest please

Step-by-step explanation:

(13x5)+(15x3)=110

Answer: B

Step-by-step explanation:

The simplified equation that is equivalent to the given equation is 16x - 5 = -47. The correct answer is option B.

The equation is given as follows:

15x - 5 + x = -47

A solution to an equation, as we know, is a variable value that, when substituted into the equation, provides a true claim.

To simplify the equation 15x - 5 + x = -47, we can combine the like terms on the left side of the equation.

Combining the terms with 'x', we have:

15x + x - 5 = -47

16x - 5 = -47

Therefore, the simplified equation that is equivalent to the given equation is 16x - 5 = -47.

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Step-by-step explanation:

A pentagonal prism is a prism having two pentagonal bases and five rectangular sides. It is a heptahedron.

The regular right pentagonal prism is uniform polyhedron . Its dual polyhedron is the pentagonal dipyramid.

The surface area and volume for the right regular pentagonal prism of unit edge length are

S = 5+1/2sqrt(5(5+2sqrt(5)))

(1)

V = 1/4sqrt(5(5+2sqrt(5))).

Answer:

Let's see what to do buddy...

Step-by-step explanation:

_________________________________

Step (1)

First we find the diameter ((h)) of the rectangle on the floor using the Pythagorean theorem.

So we have :

[tex] {h}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex] {h}^{2} = 64 + 9 [/tex]

[tex] {h}^{2} = 73 [/tex]

[tex]h = \sqrt{73} [/tex]

_________________________________

Step (2)

Now we another using of Pythagorean theorem for finding d :

[tex] {d}^{2} = {h}^{2} + {c}^{2} [/tex]

[tex] {d}^{2} = 73 + 16 [/tex]

[tex] {d}^{2} = 89 [/tex]

[tex]d = \sqrt{89} [/tex]

[tex]d = 9.4[/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

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Answer: False

Step-by-step explanation:

Two negatives equals a positive

Answer:

FALSE

Step-by-step explanation:

Answer:

4 packs of medium cups and 6 packs of large cups

Step-by-step explanation:

1.80x + 2.40y = 21.60

1.80(4) + 2.40(6) = 21.60

7.2 + 14.4 = 21.60

21.60 = 21.60

Answer:

Ivy bought 4 packs of medium cups, and 6 packs of large cups.

Step-by-step explanation:

To solve this problem, we will have to use a system of equations. Our first equation will represent the cups, and our second equation the costs.

Let [tex]m[/tex] equal medium cups.

Let [tex]l[/tex] equal large cups.

[tex]m+l=10[/tex]

[tex]1.80m+2.40l=21.60[/tex]

Let's use substitution to solve this system.

Subtract [tex]l[/tex] from both sides of the first equation:

[tex]m=10-l[/tex]

Let's substitute [tex]10-l[/tex] into the second equation for [tex]m[/tex]:

[tex]1.80(10-l)+2.40l=21.60[/tex]

Distribute [tex]1.80[/tex] into [tex](10-l)[/tex]:

[tex]18-1.80l+2.40l=21.60[/tex]

Combine like terms:

[tex]18+0.6l=21.60[/tex]

Subtract [tex]18[/tex] from both sides of the equation:

[tex]-0.6l=3.60[/tex]

Divide by the coefficient of [tex]l[/tex], which is [tex]0.6[/tex]:

[tex]l=6[/tex]

Ivy bought 6 packs of large cups.

_

Let's substitute [tex]6[/tex] into the first equation to find the number of medium cup packs:

[tex]m+6=10[/tex]

Subtract [tex]6[/tex] from both sides of the equation:

[tex]m=4[/tex]

Ivy bought 4 packs of medium cups.

_

We can check our work 2 ways; by substituting our solved values into the initial equations.

1st Equation Check:

[tex](4)+(6)=10[/tex]

[tex]10=10[/tex]

2nd Equation Check:

[tex]1.80(4)+2.40(6)=21.60[/tex]

[tex]7.2+14.4=21.60[/tex]

[tex]21.60=21.60[/tex]

Our answers are correct!