Help me please, i am terrible at math

Answer:

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

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:

Graph C

Step-by-step explanation:

Answer:

19.8

Step-by-step explanation:

Answer:

D is the equivalent expression

Answer: x = -2, x = 2

Step-by-step explanation:

Solve using square roots!

Answer:

They won't both be rational but that's about it. If one is rational and the other is not then the result is certainly irrational. Subtracting two irrational numbers might produce a rational value but it might also not. Consider: a=1+2–√, b=2–√ and a=3–√, b=2–√.

Step-by-step explanation:

Answer:

Rational number minus irrational number will result in an irrational number respectively : 2 - √3 is an irrational number. And it's consequent results [ Addition ] will also result the same : Aslike : 2 + √3 is also an irrational number. If you dig deep into the question it is similar to the basic odd minus odd or even minus even.

Hope this helps <3

Answer:

12%

Step-by-step explanation:

Tax = 36.96 - 33 = 3.96

Tax rate = 3.96/33 * 100 = 12%

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:

22

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:

120 cm

Step-by-step explanation:

multiply 10 and 12 and you get 120

Answer: I would say C

Step-by-step explanation: 12x10=120 :)

Answer:

The area is 3710 square yards.

Hope this helps!

Mark me brainliest if I'm right.

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:

it's 4.75 × 10^17

brainiest please

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:

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:

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:

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:

Step-by-step explanation:

Given formula:    y= -4x^2+24x+2

max height given by the derivative of above formula,  being equal to zero

0 = -8t +24

8t = 24

t = 3

at 3.0000000 seconds there will be a max in the rockets height ( that was nice of who ever figured out this formula to make it so easy )

y = height

y= -4*3^2+24*3+2

h = -36 +72 +2

h = 38  feet?   we were not told if the formula is in feet.  ( assume that it is , but double check it)

Nice ! so Allie gets an A  :)  A for Awesome Allie,   :DDDD

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:

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:

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:

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: 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.

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:

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: