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3 years ago

Math word problem. What's the equation I use?

1 answer:

3 0

You would have to find the proportionality of the two. If his shadow is 3 feet long, and the tree's shadow is 9 that means it is proportioned by 3. So the height of the tree would be 15.

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Square root of 2x-4 if x=5 write the reciprocal of the expression in simple radical form with a rational denominator

Elenna [48]

If x = 5, then its 6... square root of six is not able to be simplified.
so it would be 1 / sqrt 6

4 0

4 years ago

If f(x)=2x+5x and g(x)=3x-5,find (f+g)(x)

kati45 [8]

The answer is $(f+g)(x)=10x-5$

Step-by-step explanation:

Given that $f(x)=2x+5x$ and $g(x)=3x-5$

To find : $(f+g)(x)$

Now, assign the value $g(x)=3x-5$ in $(f+g)(x)$

$(f+g)(x)=(f+3x-5)$

Also, assign the value $f(x)=2x+5x$ in $(f+g)(x)$

$(f+g)(x)=(2x+5x+3x-5)$

Now, adding the like terms , we get,

$(f+g)(x)=10x-5$

Thus, the value of $(f+g)(x)$ is $(f+g)(x)=10x-5$

3 0

4 years ago

Read 2 more answers

What percent of 120 is 20?

Aneli [31]

Answer:

16.67

Step-by-step explanation:

Step 1: We make the assumption that 20 is 100% since it is our output value.

Step 2: We next represent the value we seek with x.

Step 3: From step 1, it follows that 100%=20.

Step 4: In the same vein.

Step 5: This gives us a pair of simple equations

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

Step 7: Taking the inverse (or reciprocal) of both sides yields

6 0

3 years ago

Read 2 more answers

An ice cream store with 12 different flavors sell one and two scoop ice cream cones. A boy sitting outside the store counted 11

eduard

The answer is b and e

6 0

3 years ago

Read 2 more answers

Simplify the following expression.

Sloan [31]

Answer: $3x^{2}+12x$

Step-by-step explanation:

1. To solve simplify the expression given in the problem, you must apply a property of exponents called Quotient of powers, which states that when you divide two powers that have the same base, you must subtract the exponents.

2. Keeping this property on mind, you can rewrite the expression as following and simplify:

$\frac{-12x^{3}}{-4x}-\frac{48x^{2}}{-4x}=3x^{2}+12x$

7 0

3 years ago