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
aev [14]
3 years ago
5

Multiply: (4x – 7)(2x – 9)

Mathematics
2 answers:
ra1l [238]3 years ago
5 0
<span><span>(<span><span>4x</span>−7</span>)</span><span>(<span><span>2x</span>−9)
</span></span></span><span>=<span><span>(<span><span>4x</span>+<span>−7</span></span>)</span><span>(<span><span>2x</span>+<span>−9</span></span>)
</span></span></span><span>=<span><span><span><span><span>(<span>4x</span>)</span><span>(<span>2x</span>)</span></span>+<span><span>(<span>4x</span>)</span><span>(<span>−9</span>)</span></span></span>+<span><span>(<span>−7</span>)</span><span>(<span>2x</span>)</span></span></span>+<span><span>(<span>−7</span>)</span><span>(<span>−9</span>)
</span></span></span></span><span>=<span><span><span><span>8<span>x2</span></span>−<span>36x</span></span>−<span>14x</span></span>+63
</span></span><span>=<span><span><span>8<span>x2</span></span>−<span>50x</span></span>+<span>63</span></span></span>
harina [27]3 years ago
4 0
Hello there!


Let's use foil.

First: 4x * 2x = 8x^2

Outside: 4x * -9 = -36x

Inside: -7 * 2x = -14x

Last: -7 * -9 = 63

Now, let's combine these.

8x^2 - 36x - 14x + 63

Finally, we can simplify this

8x - 50x + 63



I hope I helped!

Let me know if you need anything else!

~ Zoe
You might be interested in
The wholesale price for a pair of shoes is $3.50. A certain department store marks up the wholesale price by 60%. Find the price
Harrizon [31]

Answer:

Step-by-step explanation:

markup is 3.50(0.60) = $2.10

sales price is 3.50 + 2.10 = $5.60

one could also just multiply the wholesale price by 1.60

3.50(1.60) = $ 5.60

8 0
2 years ago
30 points! Find the four arithmetic means between -17 and 32.
bearhunter [10]

Answer: - 7.2 , 2.6 , 12.4 and 22.2

Step-by-step explanation:

Let the arithmetic means be p , q , r ,s , therefore , the sequence becomes:

-17 , p , q , r , s , 32

The first term (a ) = -17

Last term (L) = 32

common difference (d) = ?

number of terms (n ) = 6

We will use the formula for calculating the last term to find the common difference. That  is

L = a + (n - 1 ) d

Substituting the values , we have

32 = -17 + (6-1) d

32 = -17 + 5d

32 + 17 = 5d

49 = 5d

Therefore: d = 9.8

We can therefore find the values of p , q , r , and s

p is the second term , that is

p = a + d

p = -17 + 9.8

p = -7.2

q = a + 2d

q = - 17 + 19.6

q = 2.6

r = a + 3d

r = - 17 + 29.4

r = 12.4

s = a + 4d

s = - 17 + 39.2

s = 22.2

Therefore : the arithmetic means are : - 7.2 , 2.6 , 12.4 and 22.2

8 0
3 years ago
The Class Earned $3 A Day For One Week For Their School Trip. How Much Money Did They Have By The End Of The Week?
zzz [600]
$21 because 3$x$7(numbers of days in a week)is $21. I hope this helps :)
6 0
3 years ago
WILL MARK BRANLIEST 50 POINTS PLEASE HELP ( CORRECT ANSWER )<br><br> Simplify. 30k2 + 6k 5k + k
Vera_Pavlovna [14]
Simplified answer would be 60k^2+k

and you get that answer by combining like terms, Good Luck! 

8 0
3 years ago
Read 2 more answers
Is the graph a linear function, non linear function, or relation
serious [3.7K]

a LINEar function has well, the graph of a straight line, so this isn't that.

is it a relation? well, yes, because the y-value correlates with the x-value, so one depends or relates to the other.

is it a non-linear function?  well, a function has to pass the <u>vertical line test</u>, meaning if we draw vertical lines they must touch the graph only once on their way down.... and in this case it seems they do, so it is non-linear clearly, and it's also a function.

7 0
3 years ago
Other questions:
  • 5.
    5·1 answer
  • Solve using a proportion. Round to the nearest hundredth.
    14·1 answer
  • What is the ratio of 168 and 439
    12·1 answer
  • I NEED HELP REALLY FAST!!!! PLEASE!!!!
    5·2 answers
  • If a solid has faces that consist of 2 equilateral triangles and 3 congruent rectangles, what type of solid is it?
    13·1 answer
  • Abigail’s car used 9 gallons to travel 378 miles. How many gallons of gas would she need to travel 210 miles?
    11·2 answers
  • A jet plane traveling at 550 mph overtakes a propeller plane traveling at 150 mph that had a 3​-hour head start. How far from th
    7·1 answer
  • The average temperature at the South Pole is -49.62°C, and the average temperature at the North Pole is -34.68°C. How much highe
    12·1 answer
  • Mohammed and Sultan are standing 15 meters apart on a straight road, both of them are sighting a gate of a building with angle 5
    10·1 answer
  • PLS HELP I WILL GIVE 50 POINTS!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!