Photo is above need help no work needed just the answer thank you

Answer:

f(- 2) = - 1

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x), that is

f(- 2) = 2(- 2) + 3 = - 4 + 3 = - 1

For [tex]2^{x}[/tex] + 3, then

f(- 2) = [tex]2^{-2}[/tex] + 3 = [tex]\frac{1}{4}[/tex] + 3 = 3.25

Answer:

1/10 or 10%

Step-by-step explanation:

The possible outcomes are below

1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T, 5H, 5T

Since there are 10 possible outcomes, the probability of spinning a 5 and flipping a coin that lands on heads is 1/10 or 10%.

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Answer:

There are infinite solutions because there is always another number between any two numbers,

Step-by-step explanation:

This is because in the given equation >8 and x < 10 we are not told of the unique numbers we are searching for be it a decimal or a larger number searching for a unit of 9. ie) 8.0009 or searching for specific 9's.

Answer:

The last statement would be right.

Step-by-step explanation:

In The graph it proves that When mike runs 200 meters it would take him 32 seconds and when Brian runs the 200 meters it would take him 40 seconds.

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Answer:

D

Step-by-step explanation:

Squaring 121 will still be a real number, a rational number, and an integer. Therefore, it is not an irrational number.

Answer:

Water needed for pool = 486 cubic feet

Plastic liner required for the pool = 298.3 feet

Step-by-step explanation:

Top view of the pool is a composite figure, having one rectangle and a trapezoid.

1). Water needed for the pool = volume of the pool

Volume of the pool = Area of the base × Depth

                               = (Area of the rectangle + Area of the trapezoid)× depth  

Area of the trapezoid = [tex]\frac{1}{2}(b_{1}+b_{2})\times h[/tex]

                                    = [tex]\frac{1}{2}(11+9)\times (12-1.5)[/tex]

                                    = 105 ft²

Area of the rectangle = Length × width

                                    = 11 × 1.5

                                    = 16.5 ft²

Now, volume of the pool = (105 + 16.5) × 4

                                          = 121.5 × 4

                                          = 486 cubic feet

b). Liner required = surface area of the pool excluding top

                             = Surface area of the walls + Area of the pool base

                             = (Perimeter of the pool) × depth + area of the base

                             = (12 + 11 + 1.5 + 10.7 + 9)×4 + 121.5

                             = 176.8 + 121.5

                             = 298.3 square feet

Therefore, amount of water required = 486 cubic feet

liner needed = 298.3 square feet                                  

a. Water needed for pool = 486 cubic feet.

b. Plastic liner required for the pool = 298.3 feet.

a.

Water needed for the pool = volume of the pool

Here

Volume of the pool = Area of the base × Depth

= (Area of the rectangle + Area of the trapezoid)× depth  

So,

Area of the trapezoid = 0.5 × (b1 + b2) × h

= 0.5 × (11 + 9 )(12 -1.5)

= 105 ft²

Now the area of the rectangle

= Length × width

= 11 × 1.5

= 16.5 ft²

Now, volume of the pool = (105 + 16.5) × 4

 = 121.5 × 4

= 486 cubic feet

b). Liner required = surface area of the pool excluding top

= Surface area of the walls + Area of the pool base

= (Perimeter of the pool) × depth + area of the base

= (12 + 11 + 1.5 + 10.7 + 9)×4 + 121.5

= 176.8 + 121.5

= 298.3 square feet

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-40s+5.4t+0.1

Step-by-step explanation:

Answer:

C. 53.7%

Step-by-step explanation:

1.16÷2.16=53.7

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Your answer would be C. 53.7% !

This is because if you take 1.16 divided by 2.16 you get 53.7!

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Answer:

x=-5

Step-by-step explanation:

-8x-6x-3=67

-14x=70

x=-5

Answer:

x = -5

Step-by-step explanation:

Solve for x:

-8 x - 3 (2 x + 1) = 67

-3 (2 x + 1) = -6 x - 3:

-6 x - 3 - 8 x = 67

Grouping like terms, -6 x - 8 x - 3 = (-8 x - 6 x) - 3:

(-8 x - 6 x) - 3 = 67

-8 x - 6 x = -14 x:

-14 x - 3 = 67

Add 3 to both sides:

(3 - 3) - 14 x = 3 + 67

3 - 3 = 0:

-14 x = 67 + 3

67 + 3 = 70:

-14 x = 70

Divide both sides of -14 x = 70 by -14:

(-14 x)/(-14) = 70/(-14)

(-14)/(-14) = 1:

x = 70/(-14)

The gcd of 70 and -14 is 14, so 70/(-14) = (14×5)/(14 (-1)) = 14/14×5/(-1) = 5/(-1):

x = 5/(-1)

Multiply numerator and denominator of 5/(-1) by -1:

Answer:  x = -5

Answer:

Step-by-step explanation:

Given

Height of the rocket is given by

[tex]h=128t-16t^2[/tex]

[tex]h=8\times 16t-16t\times t[/tex]

(a)Greatest common factor in each term is [tex]16t[/tex]

(b)

[tex]h=8\times 16t-16t\times t[/tex]

[tex]h=16t(8-t)[/tex]

(c)

After [tex]t=4\ s[/tex]

[tex]h=16\times 4(8-4)[/tex]

[tex]h=256\ m[/tex]

after [tex]t=6\ s[/tex]

[tex]h=16\times 6(8-6)[/tex]

[tex]h=192\ m[/tex]

Thus after [tex]4\ s[/tex] height of rocket is greater .

Answer:

X = -15

Step-by-step explanation:

X/5+2 = -1

Subtract 2 from each side

X/5+2-2 = -1-2

X/5 = -3

Multiply each side by 5

X/5 *5 = -3*5

X = -15

Answer:

x =-15

Step-by-step explanation:

[tex]\frac{x}{5}[/tex] +2 = -1

x/5 = -3

5 (x/5) = - (5)

x = -15

Answer is 2 and 3/4

-Dhruva;)

Answer:

it's............ a cube

Answer:

a huskie and 112 oz

Step-by-step explanation:

1 pound = 16 ounces

? pound = 775 ounces

Answer:

Total no. of balls = 8

Red balls = 3

Yellow balls = 2

Green balls = 3

Now,

P (picking a yellow ball) = 2/8 = 1/4

P (picking a green ball) = 3/8

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Answer:

Converse of the Pythagorean Theorem

The Pythagorean Theorem states that if a triangle is a right triangle, then, the sum of the squares of the lengths of the  legs is equal to the square of the length of the hypotenuse.

That is, if a and b are legs and c is the hypotenuse, then

a2 + b2  =  c2

The converse of the Pythagorean Theorem states that if a2 + b2  =  c2, then the triangle is a right triangle.

Step-by-step explanation:

Answer:

The Flower Garden is not in the shape of a right Δ

Step-by-step explanation:

~ To prove that this garden is in the shape of a right triangle, it can be done so through contradiction ~

Pythagorean Theorem is applied to a right triangle, so we can say that the two legs are 10 and 7 feet, the hypotenuse being 13, knowing it is the longest side;

a^2 + b^2 = c^2,

10^2 + 7^2 = 13^2,

100 + 49 = 169,

149 ≠ 169,

So the Flower Garden will not be in the shape of a right Δ

Answer: 44 cubic ft.

Step-by-step explanation: First, we need to find the area of the whole bed, by doing length x width x height

2 x 12 x 6 = 144

Now, we simply subtract 100 from 144

Hope this helps :)

Answer:

2[tex]\pi[/tex]r

Step-by-step explanation:

Answer:

C= 2πr 0r C= 2πd

Step-by-step explanation:

Answer: 286 minutes

Step-by-step explanation:

x : # of months that has gone by

0.24x : cost of the 24 cent plan after "x" minutes

39.95 + 0.10x : cost of the 10 cent plan after "x" minutes

1. 39.95 + 0.10x > 0.24x

2. 39.95 > 0.24x - 0.10x

3. 39.95 > 0.14x

4. 285.36 > x

x must be AT LEAST 286 minutes for plan #2 (39.95 + 0.10x) to be a better deal

Answer:

286 minutes.

Step-by-step explanation:

Plan one: .24x

Plan two: 39.95 + .10x

When x = 286, the price of plan one is $68.64, which is higher than plan two which is $68.55. This makes the second plan preferable after 286 minutes of use.

Answer:

I saw this question in me answer option c.

Answer:

Yes

Step-by-step explanation:

Substitute by x = 3, you will find that y = - 9 + 4 = - 5

Then it lies on the line

Answer:

sim

Step-by-step explanation:

Substitua por x = 3, você descobrirá que y = - 9 + 4 = - 5

Então está na linha

Answer:

k = 143

Step-by-step explanation:

The sum of the 3 interior angles of a triangle = 180°, thus

k = 180 - (27 + 10) = 180 - 37 = 143

Answer:

range- 19

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

Answer:Statement for Account B is incorrect.

Step-by-step explanation:

Interest for Account B should be 300 x 1.8% = $5.40

The account B is incorrect. The interest of account B is $5.40.

The crediting of cash flows associated with an investment or deposit is referred to as "simple" interest.

In finance and economics, interest is the payment of an amount above the repayment of the principal sum by a borrower or deposit-taking financial institution to a lender or depositor at a specific rate by a borrower or depositor.

Given that you deposit $100 in Account A with a simple interest rate of 3.4% and $300 in Account B with a simple interest rate of 1.8%. One year later, you get a bank statement, that shows the interest for Account A is $3.40 and the interest for Account B is $540.00

SImple interest for account A,

SI = ( 100 x 3.4 ) / 100

SI = $3.4

Simple interest for account B,

SI = ( 300 x 1.8 ) /100

SI = $5.4

Simple interest for account B is incorrect.

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Answer:

[tex] \dfrac{1}{16} [/tex]

Step-by-step explanation:

Definition of a negative exponent:

[tex] a^{-n} = \dfrac{1}{a^n} [/tex]

This problem:

[tex] 4^{-2} = \dfrac{1}{4^2} = \dfrac{1}{16} [/tex]

The right answer is 1/16

look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

Mean: 4.3142

Mode: 4.3

Range: 4.1

Step-by-step explanation:

5.1 + 3.7 + 3.1 + 4.3 + 7.2 + 4.3 + 2.5 = 30.2

30.2 ÷ 7 = 4.3142

Answer:

Step-by-step explanation:

First step to finding the mean, is to add all of the numbers up.

5.1 + 3.7 + 3.1 + 4.3 + 7.2 + 4.3 +2.5 = 30.2

The next step is to divide the total against the amount of numbers in the sequence. Since there are 7 numbers in this sequence, you will divide 30.2 by 7.

30.2 / 7 = 4.3 (rounded to the nearest tenth)

The mean of the data set is 4.3

To find the mode, you will look for the number of the set that appears most frequently. I suggest putting the numbers in order of least to greatest, as this keeps them sorted and organized.

2.5, 3.1, 3.7, 4.3, 4.3, 5.1, and 7.2

Looking at these numbers, you can see that 4.3 pops up twice in the data set. This will be the mode, because it is the number that appears most frequently.

To find the range, you take the greatest number in the data set, and subtract it by the smallest.

7.2 - 2.5 = 4.7

That means that 4.7 is the range of the data set.

- Answered by, Inspire with a lowercase L, because the regular word "Inspire" was alreadt taken

Answer:

375 as the whole number and 375.4 as a decimal.

Step-by-step explanation:

number = 298(1.08)^n , where n is the number of years

so when n = 3

population = 298(1.08)^3 = appr 375

The approximate population be after 3 years is  375 as the whole number and 375.4 as a decimal.

Given that,

Based on the above information, the calculation is as follows:

[tex]= 298(1.08)^n[/tex]

Here n is the number of years

n = 3

So,

[tex]= 298(1.08)^3[/tex]

= 375

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Answer: 6.75 feet.

Step-by-step explanation: 4.5 x 1.5

Answer:

c

Step-by-step explanation:

1)

15 + 7n - 8 + 3n = 7n + 3n + 15 - 8 = (7 + 3)n + 15 - 8 = 10 n + 7

Associative Property of Addition

2)

12n + 2 (4 n + 2) = 12 n + 8 n + 4 = (12 + 8) n + 9 = 20 n + 9

Distributive Property of Equality

3)

15 n + (17 n + 9) = (15 n + 7 n) + 9 = (15 + 7) n + 9 = 22 n + 9

Addition Property of Equality,

4)

12 n + 6 + 7 n = 12 n + 7 n + 6 = (12 + 7) n + 6 = 19 n + 16

Associative Property of Addition

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

The property used is the Associative Property of Addition, which allows us to regroup the terms without changing their order.

We grouped the terms (7n + 3n) and (15 - 8) together as (7 + 3)n and simplified them to get 10n + 7.

The property used is the Distributive Property of Multiplication over Addition, which allows us to distribute a factor to each term inside a parenthesis.

We distributed 2 to (4n + 2) to get 8n + 4, and then combined like terms to get,

12n + 8n + 4 = 20n + 4.

The property used is the Addition Property of Equality, which allows us to add the same quantity to both sides of an equation without changing its value.

We added 9 to both sides of the equation to get 15n + (17n + 9) + 9 = 15n + 17n + 18, which simplifies to 22n + 9.

The property used is the Associative Property of Addition, which allows us to regroup the terms without changing their order.
We grouped the terms (12n + 7n) and (6) together as (12 + 7)n and (6), and simplified to get 19n + 6.

Therefore,

15 + 7n - 8 + 3n = 7n + 3n + 15 - 8 = (7 + 3)n + 15 - 8 = 10 n + 7

Associative Property of Addition

12n + 2 (4 n + 2) = 12 n + 8 n + 4 = (12 + 8) n + 9 = 20 n + 9

Distributive Property of Equality

15 n + (17 n + 9) = (15 n + 7 n) + 9 = (15 + 7) n + 9 = 22 n + 9

Addition Property of Equality,

12 n + 6 + 7 n = 12 n + 7 n + 6 = (12 + 7) n + 6 = 19 n + 16

Associative Property of Addition

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