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3 years ago

IMPORTANT...................... PLS HELP I REALLY NEED HELP WITH THIS ONE!!!!

Mathematics

1 answer:

professor190 [17]3 years ago

8 0

Answer:

the formula is V=Bh,the second is a triangle, the volume is 96

Step-by-step explanation:

i got it right

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For the function f(x) = (5-6x)^2, fine f^-1

Scorpion4ik [409]

Answer:

f(-1) = 121

Step-by-step explanation:

f(x) = (5-6x)^2 (First we will substitute x for -1)

f(-1) = (5-6(-1))^2 (Then we will combine like terms)

f(-1) = (11)^2 (Then we will square it)

f(-1) = 121 (You are done)

8 0

3 years ago

Find the solution of this system of equations. <br> -2x-6y=-16<br> 4x-6y=-58

Yanka [14]

-(-2x-6y=-16)

2x+6y=16
4x-6y=-58

Y's cancel out, then add the rest

6x=-42

divide both sides by six

x=-7

plug x into any previous equation

2(-7)+6y=16

-14+6y=16

6y=30

y=5

6 0

3 years ago

Read 2 more answers

(3a2 + 2ab + 2b) + (5a2 − 3ab + 9)

ivann1987 [24]

Step-by-step explanation:

$\tt{(3 {a}^{2} + 2ab + 2b) + (5 {a}^{2} - 3ab + 9})$

~While adding , the sign of each term of second expression remains same. So, Remove the unnecessary parentheses :

⤑ $\tt{3 {a}^{2} + 2ab + 2b + 5 {a}^{2} - 3ab + 9}$

~Like terms are those which have the same base. Combine the like terms :

⤑ $\tt{3 {a}^{2} + 5 {a}^{2} + 2ab - 3ab + 2b + 9}$

⤑ $\sf{8 {a}^{2} - ab + 2b + 9}$

$\red{ \boxed{ \boxed{ \tt{ ⟿ Our \: final \: answer : 8 {a}^{2} - ab + 2b + 9}}}}$

Hope I helped ! ツ

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6 0

3 years ago

Read 2 more answers

1.Find the amount in an account where $200 is invested at 3.5% compounded quarterly for a period of 3 years.

spayn [35]

Part 1 :

P = $200

r = 3.5% or 0.035

t = 3

n = 4

Compound interest formula = $P(1+\frac{r}{n})^{nt}$

= $200(1+\frac{0.035}{4})^{3*4}$

= $200(1.00875)^{12}$

= $200\times1.1102$

= 222.04

So, money in the bank will be = 200+222.04 = $422.04

Part 2 :

P = $200

r = 3.5% or 0.035

t = 3

Continuous compound interest formula is =

A = $Pe^{rt}$

Putting e = 2.71828 we get.

A = $200(2.71828)^{0.035*3}$

= $200(2.71828)^{0.105}$

= 200*1.11071 = 222.14

Hence, amount in account after 3 years will be= 200+222.14 = $422.14

6 0

4 years ago

A ball is dropped from a certain height. The function below represents the height f(n), in feet, to which the ball bounces at th

Sedbober [7]

The 0.7 gives the next height of each bounce
For example say first bounce was 7 ft then next bounce will be t*0.7 = 4.9 ft
Then next boune will be 7*(0.7)^2 and so on.

6 0

3 years ago

Read 2 more answers