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Answer:

11

Step-by-step explanation:

30% of 30 = 0.3 * 30 = 9

1/3 of 30 = 30/3 = 10

30 - 9 - 10 = 11

Answer: 11

Answer:

see explanation

Step-by-step explanation:

The n th term of a geometric sequence is

= a

where a is the first term and r the common ratio

Both a and r have to be found

Given a₃ = - 2, then

ar² = - 2 → (1)

Given a₇ = - 32, then

a = - 32 → (2)

Divide (2) by (1)

= , that is

= 16 ( take the fourth root of both sides )

r = 2 ← common ratio

Substitute r = 2 into (1)

a × 2² = - 2, that is

4a = - 2 ( divide both sides by 4 )

a = -  ← first term

Hence

= -  ← explicit formula

and

= -  ×  = - 0.5 × 512 = - 256

Step-by-step explanation:

Answer:

C 50pi

Step-by-step explanation:

Now, 2pi*r = 10pi. Thus 2r = 10. Thus, as the diameter of the circle is the diagonal of the square, the side of the square = = --> Area = = 50 sq. units

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

(5-2)/(x-1) = 3

x=-2

Answer:

D. 0

Step-by-step explanation:

the slope of the line is negative reciprocal to the slope of the other line 1/3=> -3

(5 - 2)/(x - 1) = -3

=> 3/(x - 1) = -3

=> x - 1 = -1

=> x = 0

Answer: B and C

Step-by-step explanation: Hope this help :D

Answer:

30 in

Step-by-step explanation:

See attached image.

The length of AB is 17 (radius).  The length of AC is 8 (given info).

AC splits segment BD in half, so point C is the midpoint of segment BD.

AC is perpendicular to the chord, so triangle ABC is a right triangle.  You now have a right triangle with a leg of length 8 and hypotenuse of lenght 17.

The Pythagorean Theorem:  (leg)^2 + (leg)^2 = (hypotenuse)^2.

[tex]8^2+(BC)^2=17^2\\\\64+(BC)^2=289\\\\(BC)^2=225\\\\BC=\sqrt{225}=15[/tex]

That's half the length of the chord, so double that to get 30 inches for the full length of the chord BD.

Answer:

Dimension of the enclosure is 56.56 ft * 14.14 ft

Step-by-step explanation:

Given -

Let us suppose that x is the length of steel fence and y is the length of one side of pine boards

We know that - xy = 800.

y = 800/x

Let us say that  C is the cost of fence

                = 3x + 6(2y) = 3x + 12y = 3x + 12(800/x)

C = 3x + 9600x-1, x > 0

C' = 3 - 9600x-2 = (3x2-9600)/x2

C' = 0 when 3x2 = 9600

                  x2 = 3200

                  x = √3200 ft ≈ 56.56 ft

So, the cost is minimized when x ≈ 56.56 ft and y = 800/x ≈ 14.14 ft

Answer:

Number of gallons of blue paint = 40 gallons

Number of gallons of red paint = 25 gallons

Step-by-step explanation:

We are given the ratio:

Blue paint : Red paint =

8 : 5

Sum of proportion = 8 + 5 = 13

If the customer need 65 gallons of paint,

a) Number of gallons of blue paint needed =

8/13 × 65 gallons = 40 gallons

b) Number of gallons of red paint needed =

5/13 × 65 gallons = 25 gallons

Therefore:

Number of gallons of blue paint = 40 gallons

Number of gallons of red paint = 25 gallons

Answer:

did you forget a picture?

Step-by-step explanation:

Answer: first post the picture

Step-by-step explanation:

1. Take the picture

2. Post it on Brainly

3. Get your answer

Answer:

1. F(-5) = -9

2. F(-4) = -7

3. F(1) = 3

4. F(3) = 7

5. F(5) = 11

Step-by-step explanation:

For each problem, F(x) is replaced with x.

An example is F(-5) = 2x + 1 (your first question).

To solve this, you replace x with -5.

This creates F(-5) = 2(-5) +1

We just simplify by multiplying -5 by 2 and then adding 1.

-5 times 2 equals -10. -10 plus 1 equals -9.

Your final answer for this example problem would be F(-5) = -9.

This applies to all problems as such -- F(x) where x inside the parentheses replaces all x values in the equation.

Hope this helped!!

Answer:

12%

Step-by-step explanation:

Tax = 36.96 - 33 = 3.96

Tax rate = 3.96/33 * 100 = 12%

Answer:

21%

Step-by-step explanation:

The sum of the 13% who play football and the 8% who play golf would be 21%

.13 + .08 = .21

Answer:

See Explanation

Step-by-step explanation:

Given

Luanne

[tex]Salt = 3\ cups[/tex]

[tex]Gallon = 1[/tex]

Fiona

[tex]Salt = 2\ cups[/tex]

[tex]Gallon = 3[/tex]

The question is incomplete, as the options are not given.

However, possible comparison that can be made are

(a) The unit amount of salt

(b) Whose solution is more concentrated with salt

(a) The unit amount of salt

To do this, we divide the amount of salt by the number of gallons.

[tex]Unit = \frac{Salt}{Gallon}[/tex]

For Luanne

[tex]Unit = \frac{3}{1}[/tex]

[tex]Unit = 3 cups/gallon[/tex]

For Fiona

[tex]Unit = \frac{2}{3}[/tex]

[tex]Unit = 0.67cups/gallon[/tex]

(b) Whose solution is more concentrated with salt

By comparing the result in (a)

We have:

[tex]Unit = 3 cups/gallon[/tex] --- Luanne

[tex]Unit = 0.67cups/gallon[/tex] --- Fiona

Luanne unit amount implies that there are 3 cups in every gallon of water;

Fiona unit amount implies that there are 0.67 cups in every gallon of water;

[tex]3 >0.67[/tex]

Hence, Luanne solution is more concentrated with salt

Answer:

C. 50 mph

Step-by-step explanation:

Total miles - 600

Total hours - 12

Therefore, 600/12 = 50

Ans: 50 mph

pls mark me brainliest :)

Answer: x = -2, x = 2

Step-by-step explanation:

Solve using square roots!

Answer:

D is the equivalent expression

Answer:

15% discount

Step-by-step explanation:

1 - (102/120)

1 - 0.85 = 0.15 = 15%

Answer:

hola!!thanks for the fact 81,300 from scientific notation

Answer:

N = 5/6

Step-by-step explanation:

4/5 N= 2/3.  Find N (solve for N).  

Isolate N.  To do this, multiply both sides of the equation by (5/4):

(5/4)(4/5)N= (5/4)(2/3)

becomes N = 10/12, or N = 5/6.

Answer:

occurred during the same period of time

Step-by-step explanation:

The word "while" indicates two events ("I was studying" and "she was making dinner") happening at the same time.

Answer:

Graph C

Step-by-step explanation:

Answer:

19.8

Step-by-step explanation:

Answer:

it's 4.75 × 10^17

brainiest please

Answer:

her mother drives 142 miles more than her brother.

Step-by-step explanation:

227 + 337 = 564 miles in total driven

¼ of 564 miles = 136 miles (what her brother drives of the 564 miles)

564 - 136 = 428 left

her mother drives 428-150 miles from Wednesday = 278

278-136=142

(plz mark branliest)

Answer:

do u have answer choices or did u come up with anything that can help me out a lil bit

Step-by-step explanation:

mrk me brainliest plz

Answer: 2 ounce

Step-by-step explanation:

Given

16 ounce of the box is shared by Sue and Bill

Sue has eaten [tex]\frac{5}{8}[/tex] of the box

Bill has eaten [tex]\frac{1}{4}[/tex] of the box

total cereal eaten by them is

[tex]\Rightarrow \dfrac{5}{8}+\dfrac{1}{4}=\dfrac{5}{8}+\dfrac{2}{8}\\\\\Rightarrow \dfrac{7}{8}[/tex]

So, they have eaten this much of the box. Amount left in the box is

[tex]\Rightarrow 1-\dfrac{7}{8}\\\\\Rightarrow \dfrac{1}{8}[/tex]

In ounce it is

[tex]\Rightarrow 16\times \dfrac{1}{8}\\\\\Rightarrow 2\ \text{ounce}[/tex]

Answer:

The answer is most likely A

Hope this helps if t does please consider giving brainliest

Cya on the next one!

Step-by-step explanation:

Answer: Mean

Step-by-step explanation: the mean, is the average or the expected value that measures the central value of a data set. It is found by adding all of the values in the data set and dividing it by the number of values.

please see in the photo for the answer , thanks :-)