Ask question

Ask question

All categories

3 years ago

7

(-9.-2). (4.2) Midpoint

1 answer:

Sladkaya [172]3 years ago

6 0

Answer:

(-13/2 , 2)

Step-by-step explanation:

You might be interested in

Solve the linear system by substitution 3c-2y=16<br> 5x+y=18

andrew11 [14]

It's x or c?
...
...
.

6 0

3 years ago

If you multiply two binomials together, and get a Trinomial, factoring the Trinomial would undo the multiplication, and you woul

melisa1 [442]

Answer: False
I hope this helps you !

4 0

3 years ago

A snowmobile traveled 32 miles in 2 1/3 hours.

sergey [27]

Answer:

13.7 mph

Step-by-step explanation:

d = st

<u>Given</u>:

d = 32 miles
t = 2 1/3 hr = 7/3 hr

<u>Find the rate s:</u>

s = d/t
s = 32÷7/3 = 32 × 3/7 = 96/7 ≈ 13.7 mph (rounded)

4 0

2 years ago

A couple needs $55,000 as a down payment for a home. If they invest the $40,000 they have at 4% compounded quarterly, how long w

slava [35]

Answer:

8 years

Step-by-step explanation:

Compound interest formula

$A(t)= A_0(1+\frac{r}{n})^{nt}$

A(t) is the final amount 55000

A_0= 40000, r= 4% = 0.04, for quarterly n=4

$55000=40000(1+\frac{0.04}{4})^{4t}$

divide both sides by 40000

$1375=(1+\frac{0.04}{4})^{4t}$

$1375=(1.01)^{4t}$

Take ln on both sides

$ln(1375)=4tln(1.01)$

divide both sides by ln(1.01)

$\frac{ln 1375}{ln 1.01}=4t$

Divide both sides by 4

t=8.00108

So it takes 8 years

8 0

3 years ago

3(-0.4n-0.7)=-3.2n-2.58

svlad2 [7]

Answer:

$n=-0.24$

Step-by-step explanation:

$3\left(-0.4n-0.7\right)=-3.2n-2.58$

Use distributive property.

$-1.2n-2.1=-3.2n-2.58$

$-1.2n-2.1+2.1=-3.2n-2.58+2.1$

$-1.2n=-3.2n-0.48$

$-1.2n+3.2n=-3.2n-0.48+3.2n$

$2n=-0.48$

$\frac{2n}{2}=\frac{-0.48}{2}$

$n=-0.24$

3 0

3 years ago