please help I will give you brainliest​

Given:

a = 2 and b = -2.

To find:

The value of [tex]a^3+3b^2[/tex].

Solution:

We need to find the value of expression [tex]a^3+3b^2[/tex] at a = 2 and b = -2.

Substituting a = 2 and b=-2 in [tex]a^3+3b^2[/tex], we get

[tex](2)^3+3(-2)^2[/tex]

[tex]=8+3(4)[/tex]

[tex]=8+12[/tex]

[tex]=20[/tex]

Therefore, the value of expression [tex]a^3+3b^2[/tex] at a = 2 and b = -2 is 20.

Answer:

25.731% increase

Step-by-step explanation:

(V2−V1)|V1|×100

=(2.15−1.71)|1.71|×100

=0.441.71×100

=0.25731×100

=25.731%change

=25.731%increase

Answer:

.44=44%

Step-by-step explanation:

just subtract both numbers and you get how much they added but then again it depends so my answer my not be right but give it a try if you like

Answer:

(2,0) , (4,-20) and (-1,-1)

Step-by-step explanation:

Answer:

$616 in debt

Step-by-step explanation:

5.5% is equal to 0.055 so you multiply that by $1400 to get $77.

$77 is the interest rate.

You then multiply $77 by 8 months.

Given:

The equation is

[tex]2(x+14)=40[/tex]

To find:

The solution of the given equation.

Solution:

We have,

[tex]2(x+14)=40[/tex]

Using distributive property, we get

[tex]2(x)+2(14)=40[/tex]

[tex]2x+28=40[/tex]

Subtracting 28 from both sides.

[tex]2x=40-28[/tex]

[tex]2x=12[/tex]

On dividing both sides by 2, we get

[tex]x=6[/tex]

Therefore, the solution of the given equation is x = 6.

Answer:

okay so I am assuming we are dividing okay so here is how we will do it

here are the top and bottom values written more easily

3^n -3^n-1

3^n+1 +3^n

so first we can cancel out the 3^n values then get left with this

3^n-1

3^n+1

now it depends on the instructions but you can leave it like this or you can subtract their powers to get

3^n-2

Step-by-step explanation:

Answer:

[tex]26[/tex]

Step-by-step explanation:

[tex]2n-6[/tex]

Given that:

[tex]n=16[/tex]

To evaluate the expression, we must simply substitute the given value of [tex]n[/tex], which is [tex]16[/tex], for [tex]n[/tex]:

[tex]2(16)-6[/tex]

Multiply:

[tex]32-6[/tex]

Subtract:

[tex]26[/tex]

-

To check your work, simply set the given expression equal to our solution, [tex]26[/tex]:

[tex]2n-6=26[/tex]

Add [tex]6[/tex] to both sides of the equation:

[tex]2n=32[/tex]

Divide both sides of the equation by the coefficient of [tex]n[/tex], which is [tex]2[/tex]:

[tex]n=16[/tex]

Since it matches the given value of [tex]n[/tex], our solution is correct!

Answer:

26

Step-by-step explanation:

This is the answer because:

1) First, we have to substitue the value that stand for n into the equation:

2(16) - 6

2) Next, we have to follow the order of operations in order to find the answer:

1. 2 x 16 = 32

2. 32 - 6 = 26

Therefore, the answer is 26.

Hope this helps! :D

Answer:

$224

Step-by-step explanation:

320(0.3) =96

320-96 = 224

Answer:

The answer is $96.

Step-by-step explanation:

Use friendly precnents and do 320/10=32 then you do 20/10 3 times and then you add them together and you get the answer.

Answer:

The other prson is right. Its parallelogram

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

it does not fall on the line

Answer:

Solution graph is attached in the answer area.

And one possible solution is (9, 2).

9 number of dimes and 2 number of nickels.

Step-by-step explanation:

Given that:

Number of dimes = [tex]a[/tex]

Number of nickels = [tex]y[/tex]

Total number of coins are at most 12 OR total number of coins are lesser than or equal to 12.

i.e. the inequality can be written as:

[tex]a+y \leq 12[/tex] ...... (1)

One dime is worth 10 cents or $0.10.

[tex]a[/tex] number of dimes are worth $0.10[tex]a[/tex].

One nickel is worth 5 cents or $0.05.

[tex]y[/tex] number of nickels are worth $0.05[tex]y[/tex].

Second inequality can be written as:

[tex]0.10a + 0.05 \ge 0.85[/tex]

OR

[tex]2a+y\ge17[/tex] ...... (2)

[tex]a \ge 0, y \ge 0[/tex] ...... (3)

When we graphically represent the inequalities, the graph attached in the answer area represents the answer.

One solution is (9, 2).

9 number of dimes and 2 number of nickels.

Answer:

25

Step-by-step explanation:

percentage calculator 40 is what percent of 160=25;)

Answer:

40/100×160

Step-by-step explanation:

2/5×160

320/5

64

Answer: W is the correct answer just for clarification.

Step-by-step explanation:

Answer:

a= -11

b= -1/5

c= 3 1/8

Step-by-step explanation:

a- a negative plus a negative always equal a negative

Answer:

a. -11

b. -1/5

c. -25/8

Step-by-step explanation:

a. -5 - 6

= -11

b. 2/5 - 3/5

= 1/5

c. -4(1/4) - ( 1(1/8))

= -17/4 - 9/8

= -34/8 - 9/8

= -25/8

Answer:

Step by step in image below. Hope this helps

Step-by-step explanation:

(x+3) x (x+2)

Step-by-step explanation:

it should be *(x+3) x (x+2)* because area of rectangle = length x breadth

Answer:

.00009494949

Step-by-step explanation:

this may be wrong

Answer:

f(x) = [tex]\frac{-h(x) + 7}{4}[/tex]

Step-by-step explanation:

h(x) is defined by the formula,

h(x) = -4f(x) + 7

If the graph attached is of the function 'h' and we have to find the function 'f',

h(x) - 7 = -4f(x)

4.f(x) = -h(x) + 7

f(x) = [tex]\frac{-h(x) + 7}{4}[/tex]

Therefore, function 'f' will be defined by,

f(x) = [tex]\frac{-h(x) + 7}{4}[/tex]

Answer:x=18

Step-by-step explanation:

x=\frac{36}{2}

Answer:

2

Step-by-step explanation:

The scale factor is two since it's 2 times bigger than the actual figure.

Proof:

A to B = 4 units

A' to B' = 8 units

A to C = 3 units

A' to C' = 6 units

See how it keeps multiplying by 2.

4 x 2 = 8

3 x 2 = 6.

Ace Carlos

Answer:

Use cross product to determine if the two ratios form a proportion. Here we can see that 2/16 and 5/40 are proportions since their cross products are equal. Percent means hundredths or per hundred and is written with the symbol, %. Percent is a ratio were we compare numbers to 100 which means that 1% is 1/100.

Step-by-step explanation:

Answer:

0.25y

Step-by-step explanation:

Answer:

[tex]x = 6[/tex]

Step-by-step explanation:

Given

Let y represent the number of meatballs in total and x represents the number of plates.

[tex]y = 30[/tex]

[tex]Rate = 5[/tex] per plate

Required

Determine the value of x

To solve for x, we make use of the following expression.

[tex]y = Rate * x[/tex]

Substitute values for y and Rate

[tex]30 = 5 * x[/tex]

[tex]30 = 5 x[/tex]

Divide through by 5

[tex]30/5 = 5 x/5[/tex]

[tex]6 = x[/tex]

[tex]x = 6[/tex]

Hence, number of plates is 6

Answer:

I think option 3 hope it helps

Step-by-step explanation:

Answer:

∠GEF = 25

Step-by-step explanation:

Here, we want to find the value of the marked angle

Please check the attachment for the diagrammatic representation of the triangle

Mathematically, the sum of opposite interior angles equals the exterior angle

We can have this sum as follows;

∠EFG + ∠GEF = ∠FGH

Thus;

2x + 1 + x + 19 = 6x + 2

3x + 20 = 6x + 2

6x-3x = 20-2

3x = 18

x = 18/3

x = 6

Now , substitute x into the ∠GEF

That will be;

6 + 19 = 25

Answer:

1.25 (2 decimal places)

Step-by-step explanation:

Divide the ounces by 35.274

Answer:

The equation of the line in slope-intercept form is y = -x + 1

Step-by-step explanation:

The slope-intercept form of the linear equation is y = m x + b, where

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where

∵ f(x) = y ⇒ is the function of the set of ordered pairs (x, y)

∴ f(3) = -2 is the point (3, -2)

∴ f(0) = 1 is the point (0, 1)

∴ x1 = 3 and y1 = -2

∴ x2 = 0 and y2 = 1

→ Substitute them in the rule of the slope to find it

∵ m = [tex]\frac{1--2}{0-3}[/tex] = [tex]\frac{1+2}{-3}[/tex] = [tex]\frac{3}{-3}[/tex]

∴ m = -1

→ Substitute it in the form of the equation above

∵ y = -1(x) + b

∴ y = -x + b

∵ b is the value of y at x = 0

∵ at x = 0, y = 1

∴ b = 1

∴ y = -x + 1

∴ The equation of the line in slope-intercept form is y = -x + 1

Answer:

1 1/3 bags of chocolate chips

Step-by-step explanation:

If Alana has 2 1/4 bags of chocolate chips that she wants to use in 3 batches of chocolate chip cookies, then we can say;

2 1/4 bags of cookies = 3 batches of chips

To determine how much of the chocolate chips will she use in each batch of cookies, we can say;

1 bag of cookies = x batches of chips

Equating both expressions

2 1/4 bags of cookies = 3 batches of chips

1 bag of cookies = x batches of chips

Cross multiply

2 1/4 x = 3

9/4 x = 3

9x/4 = 3

9x = 12

x = 12/9

x = 4/3

x = 1 1/3

Hence Alana will need 1 1/3 bags of chocolate chips

Answer:

x = - 0.74

Step-by-step explanation: