solve the expression 7x + 8, x=4

Answers

Answer 1

Answer:

36

Step-by-step explanation:

7x + 8

x = 4

So, 7(4) = 28

28 + 8 = 36

Answer 2
4=x so substitute it in so 7(4) + 8 = 36

7*4=28+8=36

Related Questions

​ \frac{5}{2}\mathrm{g}-\frac{1}{2}\mathrm{g}= 2 5 ​ g− 2 1 ​ g simlily

Answers

Answer:

ok

Step-by-step explanation:

Find the area of the following parallelogram:​

Answers

Answer:

216

Step-by-step explanation:

18 which is the base will be multiplied by the height which is 12 giving you

18 x 12 = 216

36’s square root is what??? This is literally due in 15 minutes!

Answers

Answer:

square root of 36 is 6

Step-by-step explanation:

because 6 x 6 =36

Answer:

the square root is of 36 is 6

look at pic 10 pts will mark brainilest

Answers

Answer:

the answer is 3

Step-by-step explanation:

3x4 equals twelve and twelve minus two is ten so the answer is a: 3

also next time be truthful because you said 10 points But this question is only 5.

YOURE VERY LUCKY I DECIDED TO HELP U.

BC is included between?

Answers

Answer:C

Step-by-step explanation: goobaldy gock

Answer:

the answer is B not C you're welcome

Ethan purchased a new cell phone for $75.00. The costs of the phone is included in his first month's bill. His cell phone plan charges $0.06 for each minute used.

if Ethan has $90.00 to spend on his first month's bill, what is the maximum number of minutes he can use?

A. 80 minutes
B. 250 minutes
C. 1,250 minutes
D. 1,500 minutes​

Answers

Answer:1,250

Step-by-step explanation:

Brianna measures the temperature of two chemical samples. If the first sample measures -8 degrees Celsius and the second sample measures 24 degrees Celsius, what is the average temperature of the two samples? *

Answers

Answer: + 8 degrees

Step-by-step explanation: average (-8+24)/2= 16/2 degrees

Please help!!!!!!!!!!!! Bbb

Answers

Answer:

2x+1

Step-by-step explanation:

the second answer

What she said ^ (2X +1)

A right triangle has a height of 18 inches and a base of 12 inches. Find the area of the triangle in square inches. Enter only the number. The solution is​

Answers

Answer:

A=108in^2

Step-by-step explanation:

The area of a triangle is given by:

[tex]a = \frac{b \times h}{2} [/tex]

So,

[tex]a = \frac{12 \times 18}{2} = 108 \: {in}^{2} [/tex]


Pls help me if I cabbnnnnsbdhdhdjdjxjkxx

Answers

Answer:

33.49 mm³

Step-by-step explanation:

The formula of volume of sphere

[tex] = \frac{4}{3} \pi {r}^{3} [/tex]

The volume of the sphere

[tex] = \frac{4}{3} \times 3.14 \times {2}^{3} [/tex]

[tex] = \frac{100.48}{3} [/tex]

[tex] = 33.4933333...[/tex]

= 33.49 mm³ (rounded to the nearest hundredth)

Complete the square to find
the vertex of this parabola.
x2 - 6x – y + 17 = 0

Answers

Answer:

(3, 8)

Step-by-step explanation:

x² - 6x - y + 17 = 0

x² - 6x = y - 17

x² - 6x + 9 = y - 17 + 9

(x - 3)² = y - 8

The vertex is (3, 8)

The vertex of the parabola given by the equation x² - 6x - y + 17 = 0 is (3, 8).

To complete the square and find the vertex of the parabola given by the equation x² - 6x - y + 17 = 0, we can follow these steps:

1. Rearrange the equation: Move the constant term (17) to the other side of the equation by subtracting it from both sides. This gives us x² - 6x - y = -17.

2. Group the x-terms together: Rearrange the equation so that the x-terms are next to each other. This gives us x² - 6x = y - 17.

3. Complete the square: Take half of the coefficient of x (-6) and square it. Add this value to both sides of the equation. Half of -6 is -3, and (-3)² is 9. So we add 9 to both sides: x² - 6x + 9 = y - 17 + 9.

4. Simplify the equation: On the left side, the expression x² - 6x + 9 can be factored as (x - 3)². On the right side, -17 + 9 simplifies to -8. So the equation becomes (x - 3)² = y - 8.

5. Rewrite the equation in vertex form: The vertex form of a parabola is (x - h)² = 4p(y - k), where (h, k) represents the vertex of the parabola. Comparing this with our equation, we have (x - 3)² = y - 8, which matches the vertex form.

6. Identify the vertex: By comparing the equations, we can see that the vertex of the parabola is at the point (h, k) = (3, 8).

Therefore, by completing the square, we have found that the vertex of the parabola given by the equation x² - 6x - y + 17 = 0 is (3, 8).

To learn more about parabolas;

https://brainly.com/question/21685473

#SPJ4

Parka's and more was having a 10% off sale. Find the amount saved on a rain jacket that regularly costs $74.00.

Answers

Answer:

7.4

Step-by-step explanation:

10% of 74 is 7.4 by moving the decimal over one place. This will save them $7.40

Think the answer is 7.4 hope this helps .

runs 12 miles in 90 minutes. How many minutes does he take per mile?

Answers

Answer:

7.5

Step-by-step explanation:

90 divided by 12

Review
Francisco v
O GRAPHING. FUNCTIONS, AND LINEAR SYSTEMS
Solving a word problem involving a sum and another basic...
A textbook store sold a combined total of 432 physics and biology textbooks in a week. The number of physics textbooks sold was 60 more than the number of
biology textbooks sold. How many textbooks of each type were sold?

Answers

Answer:

246 physics books

186 biology books

Step-by-step explanation:

1) there are 432 total books

2) there are 60 more physics books than biology books

3) 432 - 60 = 372

4) 372 divided by 2 = 186

5) 432 - 186 = 246

Check:

246 + 186 = 432

246 - 186 = 60

hope this helped :)

please help quick please

Answers

Answer:I need help with the same thing.

Step-by-step explanation:

Answer:

I want to say it is b but yeah not sure.

hope I am right

solve 4z+6v=124z+6v=12 for vv

Answers

Answer:

fish stick :DDDD  funny

Step-by-step explanation:

4z +6v = 12z + 6v = 12   :? there is something fishy going on here   :/ what did you mean to ask in the question??

Which of the following sentences describes an equilateral triangle?

A:
Two sides are the same length.

B:
Each angle is less than 90 degrees.

C:
One of the angles equals 90 degrees.

D:
The lengths of all three sides are the same.

Answers

D is the answer “The lengths of all three sides are the same

given that alpha and beta are roots of the quadratic equation ax²+bx+c=0, show that alpha+beta=-6÷a and alphabeta=c÷a​

Answers

Answer:

[tex]\alpha + \beta = -\frac{b}{a}[/tex]

[tex]\alpha \beta = \frac{c}{a}[/tex]

Step-by-step explanation:

Given

[tex]ax^2 + bx + c = 0[/tex]

[tex]Roots: \alpha \& \beta[/tex]

Required

Show that:

[tex]\alpha + \beta = -\frac{b}{a}[/tex]

[tex]\alpha \beta = \frac{c}{a}[/tex]

[tex]ax^2 + bx + c = 0[/tex]

Divide through by a

[tex]\frac{a}{a}x^2 + \frac{b}{a}x + \frac{c}{a} = \frac{0}{a}[/tex]

[tex]x^2 + \frac{b}{a}x + \frac{c}{a} = 0[/tex]

The general form of a quadratic equation is:

[tex]x^2 - (Sum)x + (Product) = 0[/tex]

By comparison, we have:

[tex]-(Sum)x = \frac{b}{a}x[/tex]

[tex]-(Sum) = \frac{b}{a}[/tex]

Sum is calculated as:

[tex]Sum = \alpha + \beta[/tex]

So, we have:

[tex]-(\alpha + \beta) = \frac{b}{a}[/tex]

Divide both sides by -1

[tex]\alpha + \beta = -\frac{b}{a}[/tex]

Similarly;

[tex]Product = \frac{c}{a}[/tex]

Product is calculated as:

[tex]Product = \alpha * \beta[/tex]

So, we have:

[tex]\alpha * \beta = \frac{c}{a}[/tex]

[tex]\alpha \beta = \frac{c}{a}[/tex]

The origin of a coordinate plane is (0,0)
True or False

Answers

Answer:

true

hope it is helpful to you

Answer:

The Answer is gonna be True

1x5x89x78x0x6x8x67x87x897x7799

Answers

Answer:

just use the calculator

The answer is 0 because the equation has something being multiplied by zero, and anything multiplied by 0 is 0, and the same applies to any subsequent multiplications..

Which list shows the numbers NOT in order from greatest to least

Answers

Answer: C.

Step-by-step explanation:

You notice how the number goes from

3.50 to 3.62 to 3.49 to 3.88

hThe 3.49 is out of place. Thus ruining the order of least to greatest.

Answer: Hewo, there your Answer is Below

My answer would Be C

Step-by-step explanation:

I chose this Answer Because, It starts with 3.5 and then 3.62 and then 3.498

Hope this helps you!!

Have a great day!!!

How do I do number 2 and 4 please help

Answers

Answer:

2: 176.8mm

4: ?

Step-by-step explanation:

2: 56 times 3.14 = 175.84 --> Nearest tenth: 176.8

4: I can't see the problem, sorry :(

Answer:

2. 2461.8

4. 86.6

Explanation:

your formula for area is pi×radius^2

you are using 3.14 for pi

and your radius is half way across the circle or half the diameter.

2. 3.14×(28)^2

3.14×784

=2461.8

4.This one shows the diameter so you have to divide it by 2 first.

10.5/2=5.25

radius=5.25

3.14×(5.25)^2

3.14x27.5625

=86.6

I ROUNDED BOTH ANSWERS AT THE END

HELPP!!! 65 points GIVIN

Answers

its 3 1/4 you will thank me later :)

Answer:

the third one

3 1/4

Step-by-step explanation:

Plssss help what is x

Answers

Answer:

x = 4

Step-by-step explanation:

If you do not want to read the explanation go the the next part in bold

Ok so the shorter leg of the triangle is a radius of the circle. ( This is indicated by the point in the middle of the circle.) for the hypotenuse we are given one part of the length (2) The other part also happens to be a radius ( remember that a radius is a line that starts from the center of the triangle to any point of the circumference. ) Also remember that the radius is equal to 3. That being said the hypotenuse = 2+3 which equals 5.  

This triangle then happens to be a right triangle. ( A triangle formed by a tangent line and a radius is a right triangle.) This means that we can use the Pythagorean theorem to solve for x.

Below here is where the work is shown

a² + b² = c². where a and b = legs and c = hypotenuse. We are given the hypotenuse (5) and a leg (3) So we plug in what we are given and solve for the missing information. 5² = 3² + b²  

5² = 25

3² = 9

we would then have 25 = 9 + b²

Next we subtract 9 from each side

25 - 9 = 16

9 - 9 cancels out

Now we have 16 = b²

finally we want to get rid of the ²

To do so we take the square root of each side

[tex]\sqrt{16}=4\\\sqrt{b^2}=b\\b = 4[/tex]

we're left with b = 4 which means that x = 4

T what do you guys think of this (I know this is for help with math but I have no socail media.)​

Answers

Answer:

This is very cute.

Step-by-step explanation:

Answer:

Cute

Step-by-step explanation:

Please help I’ll mark you as brainliest if correct

Answers

Answer:

I think it is option B

Step-by-step explanation:

I dont know if I am right

if I am your welcome

Answer:

16.33 inches

Step-by-step explanation:

circumference = πd = (3.14)(5.2) = 16.33 inches

1. −5tan 2 θ+3=8tanθ+6
2. 2cosθ-3=5cosθ-5

Answers

Answer

(tan x + 3)=5

Step-by-step explanation:

Which of the following is the solution to 8 - 3x =41

A) X=11
B) x=16
C) X=-5
x=-11​

Answers

Answer:

x = -11

Step-by-step explanation:

Because 3 x -11 = -33 and

8 -(-33 = 41

Answer:

x=-11

Step-by-step explanation:

8_3x=41

_3x=41-8

_3x=33

Scroll on _3x For both parties

x=11

28 divided by 6 is?? I’m in the 7th grade helping my little sis out can remeber this stuff

Answers

Answer:

4.6666(repeating)

Step-by-step explanation:

Joanna needs a book to prop up a table leg. There are 8 Math books, 4 science books, and 5 history books. She
randomly selects a book, removing it from the shelf, and then selects another book. What is the probability that
Joanna selected two math books?

Answers

Answer:22% or 64/289

Step-by-step explanation: you take 8/17 which is math books over the total of books and multiply it together. simplify into a percent (if thats allowed)

8/17 x 8/17 = 64/289

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