find the sum of 8a+2b-4 and 3b-5. write. in expanded form and then standard form​

Answers

Answer 1

Answer:  2^3

Step-by-step explanation:


Related Questions

Helpp (please tell me if you can’t see the numbers so I can tell you them)

Answers

Answer:

-6 is the y coordinate

Step-by-step explanation:

6. What is the value of n? 3/8n - 1/3 = 5/6

Answers

Answer:

n= 3 1/9

Step-by-step explanation:

3/8n= 5/6 + 1/3

3/8n = 7/6

n = 7/6  ÷ 8/3

n=28/9

n= 3 1/9

Answer:

I think it's 3 1/9

Step-by-step explanation:

3/8n-1/3=5/6

×3. ×8. ×4

9/24n-8/24=20/24

+8/24. +8/24

9/24n=28/24

÷9/24. ÷9/24

n=28/24÷9/24

n=28/24×24/9

n=672/216

n=28/9

n=3 1/9

Don's favorite cheese snack come in a box of 6 pieces. Each piece is in the shape of a triangular prism that is 4 cm tall. The triangular base has an area of 20 cm. Find the volume of all of the cheese in the box in cubic centimeters.

Don's favorite cheese snack come in a box of 6 pieces. Each piece is in the shape of a triangular prism that is 4 cm tall. The triangular base has an area of 20 cm. Find the volume of all of the cheese in the box in cubic centimeters.



Answers

Answer:

the answer is 80 cubic cm.

Step-by-step explanation:

it is simply height X width so 20 X 4= 80 meaning the answer is 80 cm

When 500 pesos is compounded monthly at 4% interest rate fo 3 years, what is the frequency of conversion?

Answers

Answer:

The answer is "562.432"

Step-by-step explanation:

Given:

[tex]P= 500\\\\r= 4\%\\\\n= 3 \ years\\\\\text{frequency of conversion}\ (A)=?[/tex]

Using formula:

[tex]\to A=P(1+r)^n[/tex]

       [tex]= 500(1+4\%)^3\\\\= 500(1+\frac{4}{100})^3\\\\= 500(1.04)^3\\\\=500 \times 1.124864\\\\= 562.432[/tex]

Suppose you have a bag that contains 2 black and 8 striped marbles. You select one marble, replace it, and then select another. Find the probability that you will select two black marbles in a row.

P(black & black) =

Answers

Answer:

2/10 (1/5)

Step-by-step explanation:

to do this, you know that the marble is put back, so you have an equal chance each time. then, find how many black marbles there are, and go from there.

Find the value of x. Write your answer as a simplified radical if necessary.

Answers

Answer:

x=5

Step-by-step explanation:

The right angle opposite is the hypotenuse

The 30° is the opposite

SohCahToa

Soh = Sin because you got Opposite and Hypotenuse (because you're trying to find the side, you'd do the opposite of dividing, which is times)

10×sin(30)=5

PLZ PLZ PLZ ANSWER THIS!!!!

Answers

Answer:

a.

Step-by-step explanation:

girls 60/50

boys 40/50

40/50 is 10

Graph the equations
Y=400+50x
Y=300+25x

1.) from the graph at what time will the they have the same height

I’ll give u brainlist pls help

Answers

Answer:

We conclude that, at 4 minutes, both will have the same height which is 200 feet.

Step-by-step explanation:

Given the system of equations

[tex]y=400+50x[/tex]

[tex]y=300+25x[/tex]

Important Tip:

The point of intersection of the two lines would give us the point at which both have the same height.

Graphing the system of equations

The graph of the equation y = 400 + 50x

First, determine the y-intercept of the equation y = 400 + 50x by substituting x = 0

[tex]y = 400 + 50x[/tex]

[tex]y = 400 + 50(0)[/tex]

[tex]y = 400 + 0[/tex]

[tex]y = 400[/tex]

Thus, we determine that the ordered pair (0, 400) represents the y-intercept of the equation y = 400 + 50x.

Next, determine the x-intercept of the graph of the equation y = 400 + 50x by substituting y = 0

[tex]y = 400 + 50x[/tex]

[tex]0=400+50x[/tex]

switch sides

[tex]400+50x=0[/tex]

Subtract 400 from both sides

[tex]400+50x-400=0-400[/tex]

Simplify

[tex]50x=-400[/tex]

Divide both sides by 50

[tex]\frac{50x}{50}=\frac{-400}{50}[/tex]

Simplify

[tex]x=-8[/tex]

Thus, we determine that the ordered pair (-8, 0) represents the x-intercept of the equation y = 400 + 50x.

Important Tip:

The point at which the graph crosses the y-axis is called the y-intercept. The point at which the graph crosses the x-axis is called the x-intercept.

The red graph on the diagram represents the equation y = 400 + 50x having the y-intercept (0, 400) and x-intercept (-8, 0)

Please check the attached diagram.

The graph of the equation y = 300 + 25x

Now, determine the y-intercept of the equation y = 300 + 25x by substituting x = 0

[tex]y = 300 + 25x[/tex]

[tex]y = 300 + 25(0)[/tex]

[tex]y = 300 + 0[/tex]

[tex]y = 300[/tex]

Thus, we determine that the ordered pair (0, 300) represents the y-intercept of the equation y = 300 + 25x.

Next, determine the x-intercept of the graph of the equation y = 300 + 25x by substituting y = 0

[tex]y=300+25x[/tex]

[tex]0 = 300 + 25x[/tex]

switch sides

[tex]300+25x=0[/tex]

Subtract 300 from both sides

[tex]300+25x-300=0-300[/tex]

Simplify

[tex]25x=-300[/tex]

Divide both sides by 25

[tex]\frac{25x}{25}=\frac{-300}{25}[/tex]

Simplify

[tex]x=-12[/tex]

Thus, we determine that the ordered pair (-12, 0) represents the x-intercept of the equation y = 300 + 25x.

The blue graph on the diagram represents the equation y = 300 + 25x having the y-intercept (0, 300) and x-intercept (-12, 0)

Please check the attached diagram.

Analyze the POINT OF INTERSECTION:

As we already know that the point of intersection of the two lines would give us the point at which both have the same height.

The diagram indicates that:

at x = -4, the value of y = 200.

It is the point where both lines meet.

Thus, the point of intersection of the two lines is:

(x, y) = (-4, 200)

Conclusion:

As x represents the time in minutes and y represents the height in feet.

Thus, we conclude that at x = 4 minutes, both will have the same height i.e. y = 200 feet

Therefore, we conclude that, at 4 minutes, both will have the same height which is 200 feet.

Solve:
log2 (x + 5) = 3

Answers

Answer:

simplified is -2

Step-by-step explanation:

......

Answer:

First one is 2^5 = 3x+5

Second is x = 2

Third one is x^3 = 64

last one is x = 4

mehjgsgwqididhdgascccknska

Answers

Answer:

Yo, thx for the free points man

Step-by-step explanation:

(points on a circle) PLEASE HELP THIS IS DUE TONIGHT
A circle is centered at C(0,0)C(0,0)C, left parenthesis, 0, comma, 0, right parenthesis. The point M(0,\sqrt{38})M(0,38 )M, left parenthesis, 0, comma, square root of, 38, end square root, right parenthesis is on the circle.

Where does the point N(-5,-3)N(−5,−3)N, left parenthesis, minus, 5, comma, minus, 3, right parenthesis lie?

Answers

Answer:

Inside the circle, a distance of [tex]\sqrt{34}[/tex] from the center of the circle.

Step-by-step explanation:

Center of circle is at (0,0)

One point of the circle is at (0,[tex]\sqrt{38}[/tex])

Since the only known point is in the y-axis, the radius of the circle must be [tex]\sqrt{38}[/tex].

[tex]\sqrt{38}[/tex] = 6.164

So the point (-5,-3) is still inside the circle as the distance from point (-5,-3) to the center of the circle is [tex]\sqrt{(5)^2+(-3)^2}[/tex] or [tex]\sqrt{34}[/tex] which is less than the radius of the circle.

Point N(-5, -3) lies inside the circle.

We have,

To determine the location of point N(-5, -3) in relation to the given circle centered at C(0, 0), we can calculate the distance between point C and point N.

- If the distance is equal to the radius of the circle, then N lies on the circle.

- If the distance is greater than the radius, N lies outside the circle.

- If it is smaller, N lies inside the circle.

Let's calculate the distance between C(0, 0) and N(-5, -3):

Distance = √[(x2 - x1)² + (y2 - y1)²]

= √[(-5 - 0)² + (-3 - 0)²]

= √[25 + 9]

= √34

Since the distance (√34) is less than the radius of the circle, which is √38 (distance between C and M), we can conclude that the point N(-5, -3) lies inside the circle centered at C(0, 0).

Thus,

Point N(-5, -3) lies inside the circle.

Learn more about Circle here:

https://brainly.com/question/11833983

#SPJ2

The complete question:

Given that a circle is centered at C(0, 0) and passes through the point M(0, √38), determine the location of the point N(-5, -3) in relation to the circle. Does point N lie inside, outside, or on the circle?

evaluate -7 5/8 + (-6 1/4)

Answers

Answer:

exact form:

-111/8

Decimal form:

-13.875

Mixed Number Form:

-13 7/8

Answer:

-5.875

Step-by-step explanation:

primero se resuelve el paréntesis

1/4 =0.25

y se multiplica por el -6

0.25x-6= -1.5

luego se resuelve el otro lado

primero dividimos

5/8=0.625

y se multiplica por -7

0.625x-7= -4.375

y para finalizar se suman los dos lados

-4.375 + -1.5

= -5.875

Help me number 4 asap

Answers

Answer:

B

Step-by-step explanation:

Answer:

the answer is b. -4y+1

Step-by-step explanation:

b -4y+1

Nolan uses 3 yard of string. He cuts the string into pieces that are 1/6 yard long. How many pieces does Nolan have?

Answers

Answer:

.5 yards or 18 in

Step-by-step explanation:

3 yards = 108 in

1/6 yards = 6 in

108in/6in= 18in

18in=.5yards

solve in systems by substitution y=x+2 and 3x+3y=6

Answers

Answer:

x = 0, y = 2

Step-by-step explanation:

Substitute the first equation into the second equation so 3x + 3(x+2) = 6. Simplify this to get x = 0. Plug x = 0 back into the first equation to get y = 2.

Answer:

x = 0, y = 2

Step-by-step explanation:

y = x + 2

3x + 3y = 6

3x + 3(x + 2) =6

3x + 3x +6 = 6

6x = 0

x = 0

y = x + 2 = 0 + 2 = 2

The ratio of the perimeter of a square A and square B is 4:3. The side of square B is 3 m less than the side
of square A. What is the length of the side of square A?
please answer

Answers

Answer:

x = 12

Step-by-step explanation:

x = length of side of square A

'x-3' represents length of side of square B

Perimeter of square A = 4x

Perimeter of square A = 4x - 12

we can set up the following proportion based on ratio of 4:3

4x / 4 = 4x - 12 / 3

cross-multiply:

4(3x) = 4(4x-12)

12x = 16x - 48

-4x = -48

x = 12

Anybody good in geometry and know how to do this? Free Brainliest and points .

Answers

Answer:

im guessing the answer  would be C but im not sure

before hand sorry if you get it wrong

Step-by-step explanation:

Answer:

i think its b

Step-by-step explanation:

х = Зу
2x + 4y = 10
Substitution

Answers

Answer:

y=1

x=3

Step-by-step explanation:

Multiply 2x by three because if you substitute to y, you would have the multiply.

Write what is left. 6y+4y=10

Combine like terms   10y=10

y=1

x=3

Check      3=3(1)

                     6+4=10

So this solution is correct

if 5 workers can build 5 cars in 5 days how many days would it take for 7 workers to build 7 cars

Answers

Answer:

7 days

Step-by-step explanation:

It would also take 7 days

if the cost of the wallpaper was $771.12 , what was the cost , in dollar , of the wallpaper per square foot​

Answers

Answer:

$0.72

Step-by-step explanation:

:)

If
[tex] \frac{3 + \sqrt{2} }{3 - \sqrt{2} } [/tex]
=a+b×
[tex] \sqrt{2} [/tex]
, find the values of a and b.

With Full Workings.
Please hurry!​

Answers

Answer:

The answer is

[tex] a = \frac{11}{7} \\ b = \frac{6}{7} [/tex]

Step-by-step explanation:

[tex] \frac{3 + \sqrt{2} }{3 - \sqrt{2} } \times \frac{3 + \sqrt{2} }{3 + \sqrt{2} } \\ = \frac{9 + 3 \sqrt{2} + 3 \sqrt{2} + 2}{9 - 3 \sqrt{2} + 3 \sqrt{2} - 2 } \\ = \frac{11 + 6 \sqrt{2} }{7} \\ = \frac{11}{7} + \frac{6}{7} \sqrt{2} \ [/tex]

In comparison

Then

[tex]a = \frac{11}{7} \\ b = \frac{6}{7} [/tex]

Determine whether the sequence is arithmetic. If it is, determine the common difference.
--12, 10, 32, 54,...

Answers

Answer:

The sequence is arithmetic

Step-by-step explanation:

Here we want to determine the sequence is arithmetic

If the sequence was arithmetic, the difference between the terms would be constant

We have this as;

10-(-12) = 22

32-10 = 22

54-32 = 22

As we can see, the difference is constant and so we have it that the sequence is arithmetic

Use the word bank to identify the correct vocabulary word that goes with circle J below.

Answers

Answer:

HDE is the semicircle

EH is the diameter

A flat rate shipping box is in the shape of a rectangular prism you estimate the volume of the box 350 in.³ you measure the box and find that has a length of 10 inches a width of 9 inches and a height of 4.5 inches find the percent error round your answer to the nearest 10th of a percent

Answers

Answer:14.4

Step-by-step explanation:

Will give, Branliest.

Thanks,
:) ​

Answers

Answer:

250p-195

Step-by-step explanation:

did the quiz

Answer:

250p-195

~Sophia

What's the number that is halfway between numbers 0 and 121?

Answers

Halfway Between 0 and 121

Halfway Between

When you ask "What number is halfway between 0 and 121?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=0 and Y=121.

Halfway Between Line

To find the number halfway between 0 and 121, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 0 and 121 into our formula, we get:

(0 + 121)/2 = 60.5

Thus, the number halfway between 0 and 121 is 60.5

Answer:

solution given;

half way between 0 and 121=?

let a=0

and

b=121

we have

halfway =[a+b]/2=[0+121]/2=60.5

half way between 0 and 121 is 60.5

Pablo is buying tile to install in his bathroom. The
sketch of his floor is shown.
How much tile must Pablo purchase to cover his
bathroom floor?
6 ft
O 24 square feet
O 30 square feet
O 45 square feet
90 square feet
6 ft
3 ft
9 ft

Answers

Answer:

45 so C

Step-by-step explanation:

Its right on edge

2/3 (6a+9)

plsss i need it asap

Answers

Answer:

4a +6

Step-by-step explanation:

Simplify the expression

Hope it helps! :)

Please mark me brainliest

Answer:

4a+6

Step-by-step explanation:

To simplify you need to:

2/3(6a+9)=

4a+6

Directions: Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work

Activity: You will use the GeoGebra geometry tool to explore how a line parallel to one side of a triangle divides the other two sides of the triangle. Go to
segments parallel to sides of a triangle e, and complete each step below. If you need help, follow these instructions for using GeoGebra.

Question 1: Check the box labeled Show Segment Parallel to BC. Notice that DE intersects two sides of AABC creating a smaller triangle. AADE. How is
AADE related to AABC? How do you know?

Answers

Angle D and angle B are congruent because they are corresponding angles. Angle E and C are also congruent because they are corresponding angles.

Complete the following statement: |-13| __ -(-13)​

Answers

|-13| = 13

Whenever || is used, the outcome of the number inside the bracket will always be positive
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