Simplify the expression: 3(2x2 + 7x + 4) - 8x2 + 15

Answer:

[tex]n = 5[/tex]

Step-by-step explanation:

Given

[tex]2.54n = 12.7[/tex]

Required

Find n

We have:

[tex]2.54n = 12.7[/tex]

Divide both sided by 2.54

[tex]\frac{2.54n}{2.54} = \frac{12.7}{2.54}[/tex]

[tex]n = \frac{12.7}{2.54}[/tex]

[tex]n = 5[/tex]

Answer:

[tex]\frac{5x-7}{3}[/tex]

Step-by-step explanation:

Given

[tex]\frac{4x - 5}{2} - \frac{2x - 1}{6}[/tex]

Required

Express as a fraction

[tex]\frac{4x - 5}{2} - \frac{2x - 1}{6}[/tex]

Take LCM

[tex]\frac{3(4x - 5) - (2x - 1)}{6}[/tex]

Open bracket

[tex]\frac{12x - 15 - 2x + 1}{6}[/tex]

Collect like terms

[tex]\frac{12x - 2x- 15 + 1}{6}[/tex]

[tex]\frac{10x-14}{6}[/tex]

Simplify

[tex]\frac{5x-7}{3}[/tex]

Answer:

y = 4x +2

Step-by-step explanation:

The formula/equation for slope-intercept form is: y=mx+b. M stands for slope and b stands for the y-intercept.

In this question, you're already given the slope, 4, so luckily, you don't need to find that. However, you need to find the y-intercept, or otherwise known as b in the slope-intercept formula.

Given coordinates: (6, 26) ---> (6 is the x-intercept, and 26 is the y-intercept)

Slope: 4

Plug those values into y=mx+b

26 = 4(6) + b

26 = 24 + b

Subtract 24 on both sides to isolate out b.

2 = b

Now that you've found the y-intercept, plug in your stuff to form your slope-intercept equation/formula.

y = 4x + 2

Answer:

twenty four

Step-by-step explanation:

Answer:

256??? I think???

9514 1404 393

Answer:

  x = 20

Step-by-step explanation:

Corresponding sides are proportional:

  x/15 = 24/18

  x = 15(24/18) = 15(4/3)

  x = 20

Answer:

According to the property of corresponding sides

x1/x2 = y1/y2

x/15 = 24/18

x/15 = 4/3

x = 4 × 15/3

x = 4 × 5

x = 20

[tex] \\ [/tex]

Answer:

a hour is 60 minutes he was at the party for three hours so 60 times 3 = 180

Answer:

180 minutes

Step-by-step explanation:

60 minutes are in a hour he was gone for 3 hours so its 60x3=180

Answer:

$100 left over

Step-by-step explanation:

well she starts off with $300 but then spends $125 so thats

300-125= 175 she made another $250 purchase so we subtract again then added $175

175+175-250 = $100

Answer:

B. DE = 58

Step-by-step explanation:

The base angles (<F and <E) of the ∆DEF are congruent/equal. This means that ∆DEF is an isosceles triangle.

This implies that, the two sides (DF and DE) that are opposite to the base angles are congruent/equal.

DE = 40 (given) => option B is INCORRECT

Therefore:

8x - 24 = 40

Solve for x

8x - 24 + 24 = 40 + 24

8x = 64

8x/8 = 64/8

x = 8 (option C is CORRECT)

Let's find DF and FE:

DF = 8x - 24

Plug in the value of x

DF = 8(8) - 24

DF = 64 - 24

DF = 40 (Option D is CORRECT)

FE = 6x + 10

FE = 6(8) + 10

FE = 48 + 10

FE = 58 (Option A is CORRECT)

The only incorrect statement is:

B. DE = 58

Answer:j

Step-by-step explanation:

Answer:

the consecutive numbers are: 23, 25, 27, 29, 31.

Step-by-step explanation:

23+25+27 is 75

29+31 is 60

75-60 is 15

Answer:

3864

Step-by-step explanation:

multiply 4200 by .92 to get 92% or 100% -8%

Answer:

a. No

b. Yes

c. No

d. Yes

e. Yes

Step-by-step explanation:

3(x+2) simplified is equal to (3)x+(3)2 which is simplified to 3x+6.

a. 3x+2 is not the same as 3x+6 so it is false.

b. 3(2+x) is simplified to (3)2+3(x) which is simplified to 6+3x or 3x+6 which is equal to 3x+6 so it is true.

c. 3x+2x is simplified to 5x which is not equal to 3x+6 so it is false.

d. x+2x+2+4 is simplified to 3x+6 which is equal to 3x+6 so it is true.

e. x+x+x+1+1+1+1+1+1 is simplified to 3x+6 which is equal to 3x+6 so it is true.

If this answer has helped you please mark as brainliest

Answer:

Angle 1: 45

Angle 2: 90

Segment AC: 10

Segment AD: 7.1

Using the tangent ratio, the value of x, to the nearest tenth, is: 5.5.

Given a right triangle with a missing length, x, we have the following:

∅ = 70°

Opposite side length = 15

Adjacent side length = x

The tangent ratio to be applied is:

Tan ∅ = opp/adj

Plug in the values

Tan 70 = 15/x

x(tan 70) = 15

x = 15/tan 70

x ≈ 5.5

Learn more about the tangent ratio on:

https://brainly.com/question/4326804

#SPJ1

Answer:

Sequence: 13, 20, 27

Rule: Tn = 7n + 6

Step-by-step explanation:

The 3 other numbers that can form an arithmetic progression is 13, 20, 27...

The nth term of an arithmetic progression is expressed as;

Tn = a + (n-1)d

a is the first term = 13

n is the number of terms

d is the common difference = 20 - 13 = 27 - 20

d = 7

Substitute

Tn = 13 + (n-1)(7)

Tn = 13 + 7n - 7

Tn = 7n+13-7

Tn = 7n + 6

This gives the required rule

Answer:

i think the answer is c i hope it helps

Answer:

10/24

Step-by-step explanation:

5/12 x 2 =?

5x2=10

12x2=24

so 10/24 is the correct answer.

Answer:

Find the value of one the subtract it from 180

Step-by-step explanation:

Solve for X in interesting lines by finding the value of one adjacent angle and subtracting it from 180 degrees.

Answer: The Pacing Method:

Use Edulastic to help convey weekly expectations and track student progress along the way

You can set up Edulastic to function as your check-in-tool with students, and Edulastic will help you in gathering student data during this process (#Edulasticforthewin!). This can help in estimating student participation grades and preparing reports to supervisors. It can also help with pacing and students staying on task.

When I was a high school science teacher I would structure “Check ins” with my students on written handouts that students had to present to me for my signature (upon meeting and discussing project updates, hearing feedback from me etc.). If I had access to Edulastic tools then, I could have instead coordinated these check ins digitally and privately using Edulastic. They could check-in on their own time, at home or at school. That makes things a heck of a lot more efficient than having students form a line waiting to talk to me at my desk! You can set this up to occur at the every other day mark, weekly mark, biweekly, or even monthly mark depending upon length and scope of a project in place.

Check out how this might look in Edulastic:

Step-by-step explanation:

Answer:

A = 20.5 sq units

Step-by-step explanation:

you have the height of 5 but need to figure out the base

we can use the Pythagorean Theorem two times to find it

1) a² + 5² = 7²

a² = 49-25

a = [tex]\sqrt{24}[/tex] = [tex]\sqrt{4}[/tex]·[tex]\sqrt{6}[/tex] = 2[tex]\sqrt{6}[/tex]

2) b² + 5² = 6²

b² = 36-25

b = [tex]\sqrt{11}[/tex]

Base = 2[tex]\sqrt{6}[/tex] + [tex]\sqrt{11}[/tex]

A = 1/2 x 5· (2[tex]\sqrt{6}[/tex] + [tex]\sqrt{11}[/tex])

A = 2.5 · (2[tex]\sqrt{6}[/tex] + [tex]\sqrt{11}[/tex])

A = 2.5(8.2)

A = 20.5

Answer:

X = 10.7

Step-by-step explanation:

25^2 - 16^2 = 369 which squared is approximately 19.2. We need X which is the smaller side so we minus 22^2 from 19.2^2 which is 115.36 which is squared to 10.7

Answer:

19nhours

Step-by-step explanation:

Answer:

huh

Step-by-step explanation:

Answer:

x = +1 and -1

Step-by-step explanation:

y = (x + 1) (x - 1)

=> x + 1 = 0 and x - 1 = 0

=> x = -1 and x = +1

Hope this helps!

Answer:

[tex] \int \: e {}^{x {}^{2} } dx \\ y = {e}^{ {x}^{2} } \\ ln(y) = {x}^{2} \\ \frac{dy}{y} = 2xdx \\ dy/2x = {e}^{ {x}^{2} } dx \\ \int \: d( {e}^{ {x}^{2} } ) = \int {e}^{ {x}^{2} } .2xdx \\ \frac{{e}^{ {x}^{2} } }{2x} = \int \: {e}^{ {x}^{2} } dx \\ \int \: {e}^{ {x}^{2} } dx \: = \frac{1}{2x} {e}^{ {x}^{2} } + c[/tex]

Answer:

0

Step-by-step explanation:

Pink isn't on the spinner, and so he doesn't have any chance of spinning it.

Answer:

00%

Step-by-step explanation:

There is no color pink in one of the sections, meaning there is zero probability it will land on pink.

Answer:

A. 64

B. 1

Step-by-step explanation:

A. 2^6x. 2^6(1). 2^6=64.

b. 5^0x=5^0=1.

Please mark as brainliest

Answer:

Sonya got 16 questions correct.

Step-by-step explanation:

8/10=80%

80%×20=16

(To check)

16/20=80%

Answer:

-14.7

Step-by-step explanation:

Answer:

- 14.7

Step-by-step explanation:

- 4² + 1.3

- 16 + 1.3

- 14.7