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2 years ago

3.) 4+(15+26)=(4+15)+26

Mathematics

1 answer:

Alisiya [41]2 years ago

8 0

Answer:

<h2>90 Hope this helps! Please consider marking brainliest.</h2>

Step-by-step explanation:

Use pemdas:

(15+26)=41

(4+15)=19

Rewrite the question: 4+41+19+26= 90

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Answer:

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3 years ago

What is the simplest form of this expression?<br> 4(-n-3) + 7

Serga [27]

Answer:

− 4 n − 5

Step-by-step explanation:

Simplify the expression.

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3 years ago

Read 2 more answers

Pythagoras help needed please

boyakko [2]

Answer:

See explanation

Step-by-step explanation:

Find the diagonal of the square. The side of the square is 5 cm long. By the Pythagorean theorem,

$\text{Diagonal}^2=\text{Side}^2+\text{Side}^2\\ \\\text{Diagonal}^2=5^2+5^2\\ \\\text{Diagonal}^2=25+25\\ \\\text{Diagonal}^2=50\\ \\\text{Diagonal}=\sqrt{50}=5\sqrt{2}\approx 7.07\ cm$

If the square (being inside the circle) touches the circle, then the diagonal of the square is exactly the diameter of the circle. The diameter of the circle is twice the radius of the circle, so

$\text{Diameter}=2\times 5=10\ cm$

Since the diagonal is shorter than the diameter, the square can fit into the circle without touching the circle.

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3 years ago

A lake initially contains 3000 fish. Suppose that in the absence of predators or other causes of removal, the fish population in

katrin [286]

Let x = number of months.

Let y = total number of fish in pond.

6% of 3,000 = 180 fish

We can use an equation to help us with this problem.

y = 3,000 + 180x - 400x. Combine like terms.

y = 3,000 - 220x. Plug 9 in for x.

y = 3,000 - 220(9). Solve for y

y = 1,020.

There are 1,020 fish in the pond after 9 months.

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3 years ago

How do you multiply two fractions with different denominators?

IgorLugansk [536]

If you are multiplying fractions it doesn't matter if there are different denominators because you multiply straight across.

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3 years ago