Twice a first number decreased by a second number is 22. The first number increased by four times the second number is - 7.

Answer:

1)D

2)A

Step-by-step explanation:

1)[tex]-7a-2x+5a-6x\\-7a+5a-2x-6x\\-2a-8x[/tex]

The last choice is the correct answer.

2)

[tex]16bc-8ab=8b(2c-a)[/tex]

The answer is the first choice

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Answer:

6 rectangles and 10 shapes

Step-by-step explanation:

Answer: 4333.51

Step-by-step explanation:

The value after 81 months is 4333.51.

Given initial value=P=1700

Time=t=81 months= [tex]\frac{81}{12} =6.75[/tex] years.

Doubling time = d = 5 years.

So, the value after 6.75 years is:

[tex]A=P(2)^{\frac{t}{d} } \\A=1700(2)^{\frac{6.75}{5}}\\ A=4333.50613289\\A=4333.51[/tex]

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Answer:

Hi! The correct answer is -5/6

Step-by-step explanation:

~Simplify the Expression~

Answer:

5s² + 9

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

7s² + 9 + -2s²

Step 2: Simplify

Answer:

b

Step-by-step explanation:

Answer:

yes it for sure

Step-by-step explanation:

the 2AM 3has and the same 3AM are a different 3person than you would be in a different type and you are a good thing to be in a different person and then use

Step-by-step explanation:

5:1 = 5

1

= 5 × 30

1

any standing alone is on one so

6 × 30

1 1

180

1

180

Answer:

2:3

Step-by-step explanation:

2 : 3

divide both numbers by 14

Answer:

1). Parallelogram.

2). I don't know what they are asking for number two.

3). 2/3

4). Center of Mass

Step-by-step explanation:

I asked for help

Answer:

Reduce them

Answer:

The numbers are 1 and 5

Step-by-step explanation:

Answer:

The numbers are 5 and 1.

Step-by-step explanation:

First, define your variables.

[tex]x=first number\\y=second number[/tex]

Next, use the information given to make the linear system.

[tex]x+y=6\\x-y=4[/tex]

Finally, use elimination to solve for the first number then substitute to find the second number.

[tex]x+y=6\\x-y=4\\-------[/tex]

[tex]2x=10\\x=5[/tex]

[tex]5+y=6\\y=1[/tex]

Answer:

262.5 are expected

Step-by-step explanation:

do 70 divided by 80 and that gives you 0.875

then multiply 300 x 0.875 = 262.5 people

Answer:

Step-by-step explanation:

the answer is 270

hope this helps

Answer:

c 270

Step-by-step explanation:

it just flips around the center

Answer:

Sue takes 3.3 hours to kayak 11 miles & marty takes 3.5 hours on her horse

Step-by-step explanation:

Sue's kayaking path is the hypotenuse of a right triangle.

so we use a squared + b squared = c squared

10.5^2+3.2^2=c^2

110.25+10.24=c^2

120.49=c^2

10.9768=c

and then because it said to round to the nearest tenth that would be 11.0 miles.

She's going at an average speed of 3.3 mph

that means it takes her about .3 hours to do 1 mile

so it would take her 3.3 hours to go 11 miles

marty is going at an average speed of 7 mph

so she takes 0.14 hours to go 1 mile

0.14 x 25 = 2.5

Answer:

The equation is:

72 = (b - 1)*b = b^2 - b

And the solution to this problem is:

b = 9

So we have 9 bottles in each one of the longer rows.

Step-by-step explanation:

Let's use the variables:

b =  number of bottles in the longer rows

a = number of bottles in the shorter rows.

We know that the total number of bottles in the crate will be equal to the product between a and b.

then:

72 = a*b

And we also know that

"e rows across the width of the crate hold 1 bottle less than the rows across the length of the crate."

This means that

a = b - 1

Now, we could replace this in the above equation to get:

72 = (b - 1)*b = b^2 - b

Then we have the quadratic equation:

b^2 - b - 72 = 0

The solutions of this equation can be found if we use Bhaskara's formula, the two solutions are:

[tex]b = \frac{1 +- \sqrt{(-1)^2 - 4*1*(-72)} }{2*1} = \frac{1 +- 17}{2}[/tex]

Then we have two solutions:

b = (1 - 17)/2 = -16/2 = -8  (this is a negative number, and has no meaning in our case, then this solution can be discarded)

the other solution is:

b = (1 + 17)/2 = 18/2 = 9

This is our solution, the larger rows have 9 bottles each.

Answer:

x° = 130°

Step-by-step explanation:

m∠1 = 180° - 50° = 130°

m∠3 = x° = 130°

Answer:

≈62°

Step-by-step explanation:

sin B = opp

             hyp

sin B = 15/17

sin B = .88235

arcsin B ≈ 61.9°

Answer: 0

Yurrrrrrr

Step-by-step explanation:

Answer:

TY

Step-by-step explanation:

also the answer for 6x5x7x5x7x8x6x45x6x8x7x55x6x6x6x6x0 is 0

6x5x7x5x7x8x6x45x6x8x7x55x6x6x6x6x0 = 0

Answer:

$62.5

Step-by-step explanation:

Given that:

Initial value of account = $125

Percentage growth of account = 750% of initial value

Worth of account now : (750% of $125) = (750/100) * $125 = 7.5 * $125 = $937.5

Amount less than $1000 in account :

$1000 - $937.5 = $62.5

Answer: (-5, -5)

Step-by-step explanation: Reflection is a transformation in which there is a flip of the figure, object or point.

In our case, the point is reflected over the x-axis. When this happens, the y-coordinate of the point "flips", turning negative. So, thepoint reflected over the x-axis is (-5, -3).

Translation is also a transformation. In this transformation, the object figure or point moves a fixed distance, without changing the shape. When it is translated horizontally, the x-coordinate changes: if it is to the right, we add units; if it is to the left, we subtract units.

When the translation is vertical, the y-coordinate changes: if it is up, add units; If it's down, subtract units.

After the reflection, the now point (-5, -3) is translated down 2 units. Then, the change will be:

(-5, -3) = (-5, -3-2) = (-5, -5)

The final coordinates for the point, after reflection and translation, is (-5,-5).

Answer:

one bgejeyjyegarnurgenehm47

To compute the limit

[tex]\displaystyle\lim_{x\to0}\frac{e^x-\sin x-1}{x^4+7x^3+8x^2}[/tex]

notice that when x = 0, both the numerator and denominator converge to 0. Apply l'Hopital's rule once gives

[tex]\displaystyle\lim_{x\to0}\frac{e^x-\cos x}{4x^3+21x^2+16x}[/tex]

but again, this returns the indeterminate form 0/0. Applying again gives

[tex]\displaystyle\lim_{x\to0}\frac{e^x+\sin x}{12x^2+42x+16}[/tex]

so that the numerator converges to e⁰ + sin(0) = 1, and the denominator converges to 12•0² + 42•0 + 16 = 16.

So the limit is 1/16.

Answer:

f(2)          <       g(3)

The correct option is;

1. <

Step-by-step explanation:

The given function parameters are;

f(x) = 3·x - 1, g(x) = 2·x² - 3

For f(x) = 3·x - 1, when x = 2, we have;

f(2) = 3·x - 1 = 3 × 2 - 1 = 5

For g(x) = 2·x² - 3, when x = 3, we have;

g(3) = 2 × 3² - 3 = 18 - 3 = 15

Therefore, we have;

f(2) = 5 < g(3) = 15

Which gives;

f(2) < g(3)

===========================================================

Explanation:

The x coordinate of point C is x = 7

The x coordinate of point D is x =  -1

Add up these x coordinates to get 7+(-1) = 6

Then cut that result in half: 6/2 = 3

The x coordinate of the midpoint is 3

The y coordinate of the midpoint is found in a similar fashion. You should find the midpoint is located at (3, -3.5) which is the same as saying (3, -7/2) since -7/2 = -3.5

Answer:

6

Step-by-step explanation:

divide both sides of the equals by 5 to get p on its own

5p divided by 5 = p

30 divided by 5 = 6