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3 years ago

Isolate the variable for x/5=7.5 1 x=35 2 x=1.5 3 x= 37.5 4 x= 2.5

Mathematics

1 answer:

monitta3 years ago

6 0

Answer:

3, x=37.5

Step-by-step explanation:

Since you need to get x alone, you need to get rid of the ÷5. to do this, you need to do the opposite. ×5.

multiply both sides by 5 and you get

x= 7.5(5)

x= 37.5

so the answer would be

3, x=37.5

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3 years ago

What number should be added to both sides of the equation to complete the square? x2 – 6x = 5

choli [55]

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The formula for the number you need to add to complete the square is (b/2)^2. In this case, b = -6, so:

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3 years ago

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Usimov [2.4K]

Answer:

$\bold{a=5\,,\quad b=-4\frac27}$

Step-by-step explanation:

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3 years ago

!!! Help ASAP please!!!!In DEF, sin D = 24/26 What is cos E?

Georgia [21]

Answer:

Step-by-step explanation:

Cosine is the ratio of "adjacent" to "hypotenuse"

With respect to the Angle E, the adjacent side is FE and the hypotenuse (always opposite side to 90 degree angle) is DE.

We are given DE = 26, but we need FE. We will solve for FE using Pythagorean Theorem, which tells us:

leg^2 + another leg^2 = hypotenuse^2

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$10^2 + FE^2 = 26^2\\100+FE^2=676\\FE^2=576\\FE=24$

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7 0

3 years ago