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3 years ago

Find surface area of shape.

Mathematics

1 answer:

svp [43]3 years ago

3 0

SA = 2 x pi x r (h + r)

SA = 2 x 3.14 x 5 (8 + 5)

SA = 31.4 (13)

SA = 408.2

SA = 408

The answer is B) 408 m².

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In which pair do both decimals represent rational numbers?

Assoli18 [71]

Answer:

its A

Step-by-step explanation:

Trust me

3 0

3 years ago

Y = 4x – 10

aev [14]

Answer:

(3,2)

Step-by-step explanation:

y = 4x – 10

y = 2

Substitute the second equation into the first

2 = 4x-10

Add 10 to each side

2+10 = 4x-10+10

12 = 4x

Divide each side by 4

12/4 =4x/4

3 = x

The solution is

(3,2)

3 0

3 years ago

Read 2 more answers

How can I solve this ?

Nostrana [21]

Multiply 2,500 by 1.50 which is B.

3 0

3 years ago

Read 2 more answers

Factor the trinomial step by step & explain 2x^2+ 5x + 3

Colt1911 [192]

Answer:

One way to factor equation is to find the zeros. Its obvious that x=-1 is solution for this. So one factor is (x+1)

the next factor should include 2x at first (because we have 2x^2 in the equation which can not be made any other way)

Let's suppose the factor is (x+1)(2x+b)

Since we do not know what is b open the brackets 2x^2+bx+2x+b. If this is equal to 2x^2+5x+3 then b=3. We are left with (x+1)(2x+3)=2(x+1)(x+3/2)

Would go for other shorter solutions, but they require some deeper understanding like Horner's scheme,Fermat's Theorem or even deeper which I assume You will not understand)

8 0

3 years ago

Help me with this pleaseee…!

masya89 [10]

Answer:

All real numbers

Step-by-step explanation:

We can start out by knowing that the domain of a graph is, the side, to side from the x axis directions.

We can see that the line continues of the graph shown, meaning it is infinite. Meaning the answer is the domain is all real numbers.

We can double check by seeing that the other options don't work or aren't enough:

$x\geq 2\\and\\x\leq 2\\and\\x\geq -4$

The first wouldn't work becuase, yes that is part of the answer, but not the whole answer. The same goes for the others as well, they are on the line and are correct, but the best, and full answer is "All real numbers"

3 0

2 years ago