1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vaselesa [24]
3 years ago
10

Expanding bracketss!!

Mathematics
1 answer:
saul85 [17]3 years ago
5 0

Answer:

10x²+28x+15

Step-by-step explanation:

(2x²+3)(4x+5)-8x(x²-2)=

8x³+12x+10x²+15-8x³+16x=

10x²+28x+15

You might be interested in
Meal=$40 find the total cost​
zepelin [54]

Answer:

Step-by-step explanation:

You want to leave a 15% tip on a meal that cost $48.

First, convert the 15% to an actual number that can be used in a calculation. For percents,this is always done by simply dividing the percent (in this case 15%) by 100%.So, the conversational term "15%" becomes 15% / 100% = 0.15 in terms of a real mathematical number.

Second, you need to find out what 15% of your $48 meal cost is.This is always done by multiplying 0.15 by $48.00, or

0.15 x $48.00=$7.20.

So, the amount of tip you are going to leave is $7.20.

This makes the total cost of your meal (to write on your charge slip or other payment)

$48.00 + $7.20 = $55.20.

i hope this may come to use to your rude a    s    s  

7 0
3 years ago
Please help me with this
horrorfan [7]

Answer:

\dfrac{4000\pi}{3} ft³

Step-by-step explanation:

First, let's figure out how to get the <em>volume </em>of a sphere from its <em>surface area</em>. If r is the radius of our sphere, then

The formula for a sphere's surface area is A = 4\pi r^2

The formula for a sphere's volume is V=\frac{4}{3}\pi r^3

So to get from area to volume, we have to <em>divide the area by 3 </em>and then <em>multiply it by r.</em> Mathematically:

V=\frac{A}{3}r

Before we solve for V though, we need to find the radius of our sphere. Thankfully, we're given the surface area - 400\pi ft² - so we can use the area formula to find that radius:

A=4\pi r^2=400\pi\\r^2=100\\r=10

And now that we have our radius, we can put it into our volume formula to find

V=\frac{A}{3} r=\frac{400\pi}{3}(10)=\frac{4000\pi}{3} ft³

4 0
3 years ago
(1,2) and (7,9) I need to find the slope of that
ehidna [41]

Answer:

7/6 is your slope,,,,,

8 0
3 years ago
Read 2 more answers
What’s the answer to 8-(-4)
mash [69]

Answer:

+ 12

Step-by-step explanation:

8 - (- 4) = 8 + 4 = 12

8 0
3 years ago
Read 2 more answers
You start at (10, 1). You move down 1 unit and left 7 units. Where do you end?
solmaris [256]

Translation in right or left causes the x coordinate to change while translation in up or down causes the y coordinate to change.

Moving left or down causes the coordinates to be going negative.

Moving right or up causes the coordinates to be positive.

Original point (10, 1).

Down 1 unit:

(10, 1 - 1) = (10, 0)

Left 7 units:

(10 - 7, 0) = (3, 0)

You end at (3, 0)

5 0
3 years ago
Other questions:
  • What is 110 raised to the 76th power.
    9·1 answer
  • Find the measure of the numbered angle.
    9·2 answers
  • Why is it useful to factor polynomial expressions for a given scenario?
    8·1 answer
  • How can I get Y result?<br>5y+38 = 180
    6·2 answers
  • Javier bought 48 sport cards at a yard sale.Of the cards 3\8 were basketball cards.How many cards were baseball cards?
    12·2 answers
  • A bucket contains one green block, one red block, and two yellow blocks. You choose one block from the bucket. Find the theoreti
    14·1 answer
  • Ford and GM pick up trucks are being tested for fuel efficiency, which is commonly measured in miles per gallon (mpg). The fuel
    7·1 answer
  • Shirts cost $9.00 each. There is a 9% sales tax. If Mrs. Meagher buys three shirts, how
    11·1 answer
  • How much interest does Ms. Paris earn on an $1800 loan for 6 months with a simple interest rate of 8.5%?
    13·1 answer
  • Find the surface area
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!