need help i will ark u brainiest if you answer these

Answer:

THe reason u need the ±  is so that way u know that it is both neg and positive also it helps the teacher grade the work.

Hopefully this helps u out if u need more help pls feel free to text me back

Step-by-step explanation:

Answer:

A —6

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation

Multiply 5 for 2x then get 10x then -6 add for both sides 24+6= 30

10x = 30

_         _

10       10

x=3

Answer:

7:50

Step-by-step explanation:

% means /100

14 % =

[tex]14 \% \\ \frac{14}{100} [/tex]

Cross cancel common factor : 2

[tex] = \frac{7}{50} [/tex]

Write in ratio form

[tex] \frac{7}{50} \: or \: 7:50[/tex]

☽------------❀-------------☾

Hi there!

~

[tex]14[/tex]% [tex]= \frac{5}{8}[/tex]

5/8 stays the same even if its in  simplest form​. Simplify 5/8 reduces the fraction 5/8 to the lowest form. You can change the numerator or denominator to simplify any other fraction.

❀Hope this helped you!❀

☽------------❀-------------☾

Answer:

[tex] \boxed{\sf a. \ 6x + 5} [/tex]

Given:

f(x) = -2x + 5

To Find:

f(-3x)

Step-by-step explanation:

[tex]\sf Evaluate \ f(x) \ by \ substituting \ in \ the \\ \sf value \ of \ x = -3x \ into \ f(x): \\ \sf f( - 3x) = -2( - 3x) + 5 \\ \\ \ \ \ \ \ \ \ \ \ \ \ \ \sf = 6x + 5[/tex]

Answer:

72 sq. inches

Step-by-step explanation:

We are trying to find the area of the shaded part, and so we start with finding the area of the entire half that is marked (the area with measurements). The length is 8 in, as seen on the bottom, and the height is 12 in, as seen on the side. 8 * 12 = 96, so the entire portion from the shaded part to the very right is 96 sq. inches. Now we have to take out the white triangle part to find the area of the shaded part. Area of a triangle = 1/2*base * height, so we multiply 1/2 * 12 * 4, which gets us 24. Now that we know the area of the triangle, we subtract it from the previous area we got, which was the area of the shaded part plus the triangle (96). 96 - 24 = 72, so the area of the shaded portion is 72 sq. inches. Hope this helps!

Answer:

203

Step-by-step explanation:

estimate 28.5 = 29

estimate 7.1 = 7

there for 29 x 7 = 203

The required estimated value of the given expression is 202.

The estimate is defined as a rough view calculation that helps to predict where the product value lies.

Here,
Given expression,
=  (28.5)(7.1)
Multiplying the number under the parenthesis,
Gives,
= 202.35

Now, rounding the numbers, Since the number after the decimal place is close to zero,
= 202.

Thus, the required estimated value of the given expression is 202.

Learn more about round the decimal here;

brainly.com/question/867784

#SPJ3

Fine arts= 85 students

History= 51 students

Both subjects=23 students

Only Fine arts=85-23=62 students

Only History=51-23=28 students

Hope you found it helpful.

Answer:

[tex]k (3x^3 + 8x - 2) = 12x^3 + 32x - 8[/tex]

Step-by-step explanation:

Set up the composite result function.

k (F (x))

Evaluate k (F (x)) by substituting in the value of into.

[tex]k (3x^3 + 8x - 2) = 4 (3x^3 + 8x - 2)[/tex]

Apply the distributive property

[tex]k (3x^3 + 8x - 2) = 4 (3x^3) + 4 (8x) + 4(-2)[/tex]

Simplify

       Multiply 3 by 4.

            [tex]k (3x^3 + 8x - 2) = 12x^3 + 4 (8x) + 4(-2)[/tex]

       Multiply 8 by 4.

             [tex]k (3x^3 + 8x - 2) = 12x^3 + 32x + 4(-2)[/tex]

      Multiply  4 by -2.

              [tex]k (3x^3 + 8x - 2) = 12x^3 + 32x - 8[/tex]

Answer:

I think right answer is C

Step-by-step explanation: I hope that I am right Hope this helped

The multiplication of (2.4)(–1.8) and (0.6)(–0.4) gives negative values option third is correct.

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

As we know, by the arithmetic operation rule

Multiplication of two negative values is positive.

Multiplication of one negative and one positive value is negative.

Multiplication of two positive values is positive.

In option third:

(2.4)(-1.8) = -4.32

(0.6)(-0.4) = -0.24

Thus, the multiplication of (2.4)(–1.8) and (0.6)(–0.4) gives negative values option third is correct.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ2

Answer:

31.80 in total

Step-by-step explanation:

multiply 30 by 0.0 and get 1.8, then add that o 30! hope this helps!

Answer:

3(x + 1) + 6 = 33

3x+3+6=33

3x+9=33

3x=33-9

3x=24

x=24/3

x=8

Step-by-step explanation:

hope it help ^_^

Answer:

8 is the right answer of this question

Answer:

A is 180

B is 270

C 270

D is 90

E is 270

F is 180

G is 180

H is 90

I is 270

Step-by-step explanation:

Answer:

16.6

Step-by-step explanation:

By the property of intersecting secants outside of a circle, we have:

[tex]5 \times (5 + x) = 6 \times (6 + 12) \\ 25 + 5x = 6 \times 18 \\ 25 + 5x = 108 \\ 5x = 108 - 25 \\ 5x = 83 \\ x = \frac{83}{5} \\ x = 16.6[/tex]

Answer:

2.743 × 10^7

Step-by-step explanation:

The reason as to why 10 is to the 7th power is because the number that you turn into scientific notation (27430000), needs to be in ones form. Which is 7 decimal places away.

Answer:

Step-by-step explanation:

[tex]x^2 - 7x + 9 = 0\quad\implies\quad a=1\,,\ b = -7\,,\ c=9\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-7)\pm\sqrt{(-7)^2-4\cdot1\cdot9}}{2\cdot1}=\dfrac{7\pm\sqrt{49-36}}2\\\\x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2[/tex]

Answer:

The correct option is;

The graph of h(x) passes the horizontal line test

Step-by-step explanation:

In order to determine if a function has an inverse, and also if the inverse of the function is also a function, the function can be tested by drawing an horizontal line the graph of the function and viewing to find the following conditions;

A graph of a function that is intersected at only one point in all places (vertically) by an horizontal line indicates that the function has an inverse that is also a function, while a graph of a function that is intersected at more than one point in some places (vertically) by an horizontal line indicates that the function does not have an inverse that is also a function.

Answer:

D

Step-by-step explanation:

EDGE 2020

Answer:

46 and 48

Step-by-step explanation:

Answer:

Number of nickels: 14

Number of dimes: 31

Total money: $3.80

Step-by-step explanation:

Let number of nickels be x

Number of dimes is 2x+3

Total coins = 45

So add the number of nickels and dimes and it equals 45

x+2x+3=45

3x=45-3=42

x=42/3=14 nickels

Substitute the value of x=14 in 2x+3 to find number of dimes

2(14)+3=28+3=31 dimes

Total money is 14 nickels + 31 dimes

Nickels = 0.05 and dimes is 0.10

14(0.05)+31(0.10)=0.7+3.1=3.8

Answer:

C

Step-by-step explanation:

3(k+8)=21

3k+24=21

3k=-3

k=-1

Answer:

Step-by-step explanation:

3k + 24 = 21

3k = -3

k = -1

answer is C

Answer:  The picture is attached with the answer and the explanation.

Step-by-step explanation:

Answer: -3 is natural and a whole number can be equivalent to the natural numbers

Step-by-step explanation:

Look at this picture this will help!

Answer:

b,a,c

Step-by-step explanation:

just took it

Answer:

1:B

2:A

3:C

is correct

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Step-by-step explanation:

10x² - 5x + 10

x = -3

10(-3)² -5(-3) + 10

= (10×9) + 15 + 10

= 90 + 15 + 10

= 115

Answer:

x= 4/5a

Step-by-step explanation:

5=5/ax+1

Step 1: Multiply both sides by a.

5a=a+5x

Step 2: Flip the equation.

a+5x=5a

Step 3: Add -a to both sides.

a+5x+−a=5a+−a

5x=4a

Step 4: Divide both sides by 5.

5x/5=4a/5

x= 4/5a

Hope this helps!

Answer:

3 + 2k

Step-by-step explanation:

1/5(15+10k)

distribute

1/5 * 15 + 1/5 * 10k

3 + 2k

Answer:

3 + 2k

Step-by-step explanation:

First, I am going to explain what the distributive property is. Lets say he had the expression a(b + c). We can "distribute" the a to the b and c:

a(b + c) = ab + ac

We can apply the distributive property to the expression 1/5(15 + 10k):

1/5(15 + 10k)

= (1/5)(15) + (1/5)(10k)

= 3 + 2k

By using the distributive property, we found the expression 3 + 2k.

I hope you find my answer helpful.