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Maurinko [17]
2 years ago
5

IM SO DUMB I NEED HELP

Mathematics
1 answer:
alexdok [17]2 years ago
6 0

Answer:

76.0m^2 (you have to have the .0 since it says to round to the nearest <em>tenth</em>)

Step-by-step explanation:

The formula for the surface area of a rectangular prism is:

A=2(wl+hl+hw)

So just plug in the values.

Height= 4

Width=2

Length=5

A=2((2)(5)+(4)(5)+(4)(2))\\A=2(10+20+8)\\A=2(38)\\A=76m^2

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Please answer my question thank you.
Andrews [41]
A. terminating
b. repeating
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i think
8 0
3 years ago
Read 2 more answers
Find the product of the given complex number and its conjugate.<br> 1/5+4i
nasty-shy [4]

Answer:

-15.96

Step-by-step explanation:

A conjugate is a binomial with the sign inside changed. So the conjugate of (1/5 + 4i) is (1/5 - 4i)

Set the original and the conjugate next to each other and F.O.I.L. Multiply the first numbers of each binomial, the 1/5 and the 1/5 to get 1/25. This is the "F."

Multiply the outer members, the 1/5 and the 4i to get - 60i. This is the "O."

Multiply the inner  numbers  ( the + 4i and the 1/5) to get + 60i. This is the "I."

Multiply the positive 4i and the negative 4i to get 16i squared

The positive 60i and the negative 60i cancel each other out.

The i squared changes into - 1. This makes the 16 negative.

Add 1/25 to - 16 to get - 15.96

4 0
3 years ago
Pls pls i need help with this
Scrat [10]

Answer:

5+8=13

5/13

Lisa's fraction is 5/13

6 0
3 years ago
Please help me out with this
Naddik [55]

Answer:

(x - 5)² + (y + 3)² = 16

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (5, - 3) and r = 4, so

(x - 5)² + (y - (- 3))² = 4², that is

(x - 5)² + (y + 3)² = 16

3 0
3 years ago
If you scale a figure by less than 1 or less than 100%, does the new copy increase or decrease in size? *​
nasty-shy [4]

Answer:

Decrease

Step-by-step explanation:

It gets smaller because it is 100% is full size, so less would make it smaller

3 0
2 years ago
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