All categories

3 years ago

(X-7)(3x+2) need answer!!

Mathematics

1 answer:

grin007 [14]3 years ago

7 0

Answer: the answer is

=3 $x^{2}$ −19x−14

Step-by-step explanation: (x−7)(3x+2)

=(x+−7)(3x+2)

=(x)(3x)+(x)(2)+(−7)(3x)+(−7)(2)

=3x2+2x−21x−14

=3x2−19x−14

You might be interested in

Factorise fully<br>5ac - 10a2b + 30a

irga5000 [103]

Answer:

5a(c-2ab+6)

Step-by-step explanation:

5a is in all three, then factorise

5 0

3 years ago

Read 2 more answers

An automobile went 84 miles on 6.5 gallons of gasoline. At this rate, how many gallons would be needed to travel 126 miles

luda_lava [24]

Answer:

10 gallons

Step-by-step explanation:

84 ÷ 6.5 =12.9(The unit rate.)

Seeing as one gallon can get you 12.9 miles;

126÷12.9=9.7

So the answers 9.7 gallons, but if you need to round, then 10 to get a whole number.

4 0

3 years ago

Read 2 more answers

Please help me!!

Jobisdone [24]

Answer:

b .because the surface area of the sandwich

8 0

3 years ago

A principal of $3600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 6 years?

zaharov [31]

After 6 years the investment is $5555.88

Step-by-step explanation:

A principal of $3600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 6 years?

The formula used to find future value is:

$A(t)=P(1+\frac{r}{n})^{nt}$

where A(t) = Accumulated amount

P = Principal Amount

r = annual rate

t= time

n= compounding periods per year

We are given:

P = $3600

r = 7.5 %

t = 6

n = 1

Putting values in formula:

$A(t)=P(1+\frac{r}{n})^{nt}\\A(t)=3600(1+\frac{0.075}{1})^{6*1}\\A(t)=3600(\frac{1.075}{1})^6\\A(t)=3600(1.075)^6\\A(t)=3600(1.543)\\A(t)=5555.88$

So, After 6 years the investment is $5555.88

Keywords: Compound Interest formula

Learn more about Compound Interest formula at:

#learnwithBrainly

8 0

3 years ago

Someone pls helpppppppp

frutty [35]

Answer:

well the first one is x^3 y^2 z 7root x^2 z

5 0

3 years ago