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3 years ago

5x + 2 – 2(x - 1) = 3x + 4 PLS HELP !

Mathematics

1 answer:

Snezhnost [94]3 years ago

8 0

Answer:

5x + 2 - 2(x - 1) = 3x + 4

⇔ 5x + 2 - 2x + 2 = 3x + 4

⇔ 3x + 4 = 3x + 4

⇔ 4 = 4

⇒ infinite solutions

Step-by-step explanation:

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Can someone help me with this question?

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Yes, the answer is both of them. tell me if you want to know why

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3 years ago

In a choir, the ratio of boys to girls is 5 to 6. There are 10 boys in the choir. What is the total number of boys and girls in

lidiya [134]

Answer:

Step-by-step explanation:

Boys to Girls

5 to 6

10 to ?

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2 × 10^12 red blood cells have a total mass of 90 grams.

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3 years ago

A number cube with the numbers 1 to 6 is rolled. What is the theoretical probability of rolling the number 3?

mr_godi [17]

<h3>Answer:</h3>

$\frac{1}{6}$

<h3>Step-by-step explanation:</h3>

There are 6 possible options: $\text{1, 2, 3, 4, 5, 6}$

There is 1 option out of those 6 that we are finding: $\text{3}$

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3 years ago

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What is the area of a triangle for one of the legs being 3in and the hypotenuse being 9in

elena55 [62]

The area of a triangle for one of the legs being 3 inches and the hypotenuse being 9 inches is 12.727 square inches

<em><u>Solution:</u></em>

Given that to find area of a triangle for one of the legs being 3 inches and the hypotenuse being 9 inches

From given information,

Let "c" = hypotenuse = 9 inches

Let "a" = length of one of the leg of triangle = 3 inches

To find: area of triangle

<u><em>The area of triangle when hypotenuse and length of one side of triangle is given:</em></u>

$A = \frac{1}{2} a \sqrt{c^2 - a^2}$

Where, "c" is the length of hypotenuse

"a" is the length of one side of triangle

Substituting the given values we get,

$A = \frac{1}{2} \times 3 \times \sqrt{9^2 - 3^2}$

$A =\frac{1}{2} \times 3 \times \sqrt{81-9}\\\\A =\frac{1}{2} \times 3 \times \sqrt{72}\\\\A =\frac{1}{2} \times 3 \times 8.48528\\\\A = \frac{1}{2} \times 25.45584\\\\A = 12.727$

Thus area of triangle is 12.727 square inches

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3 years ago