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2 years ago

(3x - 4) - (x - 5) Subtract. Subtract linear expressions.

Mathematics

1 answer:

Tasya [4]2 years ago

6 0

In order to subtract here, we must first distribute a -1 to each term in the 2nd set of parentheses.

3x - 4 - x + 5

Now, we can simply add like terms.

2x + 1 is the simplified form of the given expression.

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The slope of a line that passes through points (-1, -3) and (-2,5) is:

sweet [91]

Answer:

m = -8

Step-by-step explanation:

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2 years ago

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alexira [117]

Answer: -1

Step-by-step explanation:

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2 years ago

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3 cm 7 cm 4 cm 8 cm area

ryzh [129]

Answer:

672 square inches

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1 year ago

PLEASE HELP!!

PSYCHO15rus [73]

Answer:

The bird is approximately 9 ft high up in the tree

Explanation:

The required diagram is shown in the attached image

Note that the tree, the cat and the ground form a right-angled triangle

Therefore, we can apply special trigonometric functions

These functions are as follows:

$sin(\alpha)=\frac{opposite}{hypotenuse} \\ \\ cos(\alpha)=\frac{adjacent}{hypotenuse} \\ \\tan(\alpha)=\frac{opposite}{adjacent}$

Now, taking a look at our diagram, we can note the following:

α = 25°

The opposite side is the required height (x)

The adjacent side is the distance between the cat and the tree = 20 ft

Therefore, we can use the tan function

This is done as follows:

$tan(\alpha)=\frac{opposite}{adjacent}\\ \\ tan(25)=\frac{x}{20}\\ \\x=20tan(25) = 9. 32 ft$ which is 9 ft approximated to the nearest ft

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2 years ago

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