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3 years ago

Simplify the expression (5+3i)(4-4i) need help ASAP! Please

Mathematics

1 answer:

natita [175]3 years ago

5 0

the answer is.... B.) 9-1

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Can Someone help me with this Question?

LuckyWell [14K]

Answer:

y=C-Ax÷B

Step-by-step explanation:

Ax+By=C

-Ax -Ax

By= C-Ax

—————

y=C-Ax

——–

5 0

3 years ago

Use the net to find the surface area of the prism 8in 15in 17in 9in

exis [7]

Answer:

The surface area of the prism is 480 in².

Step-by-step explanation:

Given:

The prism dimensions are 8in 15in 17in and 9in.

Now, to find the surface area:

So, to get the surface area we put formula:

a=8in, b=15in, c=17in and h=9in.

Surface area = 2A+(a+b+c)h.

Whereas, $A=\sqrt{s(s-a)(s-b)(s-c)}$

And, $s=\frac{a+b+c}{2}$

Now, we find s first:

$s=\frac{a+b+c}{2}$

$s=\frac{8+15+17}{2}$

$s=\frac{40}{2}=20.$

Then, we get A :

$A=\sqrt{s(s-a)(s-b)(s-c)}$

$A=\sqrt{20(20-8)(20-15)(20-17)}$

$A=\sqrt{20(12)(5)(3)}$

On solving we get:

$A=\sqrt{3600}=60.$

Now, putting the value of A in the formula to get the surface area:

$Surface area = 2A+(a+b+c)h.$

$Surface area = 2\times 60+(8+15+17)9.$

$Surface area = 120+(40)9.$

$Surface area = 120+360.$

$Surface area = 480\ in^2.$

Therefore, the surface area of the prism is 480 in².

6 0

3 years ago

80 is 8% of what amount please help me I really need it!

Bad White [126]

80=8%
divide both sides by 8
10=1%
times 100 both sides
1000=100%
the number is 1000

6 0

3 years ago

Read 2 more answers

Solve the system of equations below.

Kaylis [27]

Answer:

(11,6)

Step-by-step explanation:

I just took the test and it was this answer.

7 0

3 years ago

Can someone help me out plz

Flauer [41]

Answer:

Around 59.69026

Step-by-step explanation:

C = Circumference (What we are looking for)

R = 9.5yd (Radius)

C = 2(Pie [I can't find the symbol])r
C = 2(Pie)9.5
C ≈ 59.69026

6 0

3 years ago