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4 years ago

Solve for x in the equation x-4=7

Mathematics

2 answers:

Lera25 [3.4K]4 years ago

7 0

What you do first is add 4 to both sides of the equation to get x alone and you get x=11. X is equal to 11.

TEA [102]4 years ago

6 0

Answer:

$x=11$

Step-by-step explanation:

we have

$x-4=7$

Solve for x

Adds $4$ both sides

$x-4+4=7+4$

$x=11$

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Phantasy [73]

Answer:

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3 years ago

What are the factors of x2 – 100?

Molodets [167]

Answer:

(x - 10)(x + 10)

Step-by-step explanation:

x² - 100 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

x² - 100

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3 years ago

F(x) = 3x+1 and f ^-1 = x-1/3

Lostsunrise [7]

They are inverses of one another; is there an actual question there somewhere?

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3 years ago

Ryan is putting a clothesline in his rectangular backyard. He wants to put it between two trees on the edge of his property. He

Rama09 [41]

Answer:

25m

Explanation:

The first figure attached is the sketch of the property mentioned on the question, where all the lengths listed are in meters.

The second figure attached identifies a right triangle whose hypotenuse, c, is the smallest length that the clothesline can measure; and the legs measure 20m, and 20m - 10m = 15m.

Now, you can use the Pythagorean theorem to find the smallest length of the clothesline:

$c^2=(20m)^2+(15m)^2\\\\c^2=625m^2\\\\c=\sqrt{625m^2} \\\\c=25m\longleftarrow answer$

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3 years ago

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kondor19780726 [428]

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4 years ago

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