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Ronch [10]
4 years ago
15

Write an algebraic expression for the word phrase.

Mathematics
2 answers:
gogolik [260]4 years ago
4 0
I believe the answer is a because in order to find the percentage of something you divide :)
hodyreva [135]4 years ago
3 0

Answer:

the answer would be c. 0.40x

Step-by-step explanation:

Hello, great question. These types are questions are the beginning steps for learning more advanced <u>Algebraic Equations</u>.

Before we can solve this problem we need to turn the percentage into decimal form. We do this by moving the decimal to digits to the left like so...

40.0%    ⇔    0.40

Now that we have the percent in decimal form we can create the algebraic expression. To be able to find the percent of a number, we have to multiply the decimal form of the percent by the given number. That being the case the expression would be....

0.40x

Therefore, the answer would be c. 0.40x

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Why is it so hard and not easy to understand people add so much new things every day
ch4aika [34]

Answer:

your question makes no sense

3 0
3 years ago
The equation of a curve is y = x³ + 4x. Show that the value of y increases when x increases. ² is a decreasing function.​
belka [17]

We will see that f'(x) > 0, which means that f(x) is an increasing function.

<h3>How to prove that the function is increasing?</h3>

For any function f(x), if f'(x) > 0, then f(x) is increasing for any value of x.

Here we have the cubic function:

f(x) = x³ + 4x

If we differentiate this, we get:

f'(x) = df(x)/dx = 3x² + 4.

And notice that x² is always positive, then f'(x) > 0, which means that f(x) is an increasing function.

If you want to learn more about cubic functions:

brainly.com/question/20896994

#SPJ1

7 0
2 years ago
What is the missing constant term in the perfect square that starts with x^2+10x?<br><br>​
natulia [17]

Answer:

+ 25

Step-by-step explanation:

To complete the square

add ( half the coefficient of the x- term )²

the coefficient of the x- term is 5 and 5² = 25, hence

x² + 10x + 25 = (x + 5)² ← perfect square


7 0
3 years ago
Naming triangles by angle measures
forsale [732]

Answer:

???

Step-by-step explanation:

8 0
3 years ago
Y=-5x+30 7x+3y=42 1111
jekas [21]

Step-by-step explanation:

7x+3y=42.

y=-5x+30.

7x+3(-5x+30)=42

7x-15x+90=42

8x=42-90

-8x=-48

x=-48/-8

x=6

y=-5x+30

y=-5×6+30

=-30+30

y=0

(6,0)

5 0
3 years ago
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