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Hoochie [10]
3 years ago
12

Help me pls I need help with this test

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
7 0

Answer:

question 7 is A

Step-by-step explanation:

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How do i graph fractions? <br>please help
MissTica
Actually it's 
y = \frac{x+4}{3}

it's a line. so 2 points is enough

choose x so that x+4 would be divisible by 3 :)
1) x = 2, then y = (2+6) / 3 = 2 - sketch point (2,2)
2) x = 5, then y = (5+4) / 3 = 3 - sketch point (5,3)
3) line goes though those points. use ruler :) 
7 0
3 years ago
One root of f(x) = x + 10x2 – 25x – 250 is x = -10. What are all the roots of the function? Use the Remainder Theorem.
Natalka [10]

Answer:

-10

-5

5

Step-by-step explanation:

From the answers given, you probably mean f(x) = x^3 + 10x2 – 25x – 250

The Remainder Theorem is going to take a bit to solve.

You have to try the factors of 250. One way to make your life a lot easier is to graph the equation. That will give you the roots.

The graph appears below. Since the y intercept is -250 the graph goes down quite a bit and if you show the y intercept then it will not be easy to see the roots.

However just to get the roots, the graph shows that

x = -10

x = - 5

x = 5

The last answer is the right one. To use the remainder theorem, you could show none of the answers will give 0s except the last one. For example, the second one will give

f((10) = 10^3 + 10*10^2 - 25*10 - 250

f(10) = 1000 + 1000 - 250 - 250

f(10) = 2000 - 500

f(10) = 1500 which is  not 0.

==================

f(1) = (1)^3 + 10*(1)^2 - 25(1) - 250

f(1) = 1 + 10 - 25 - 250

f(1) = -264 which again is not zero

3 0
3 years ago
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My Hero Acadmeia season 5 is out!!!!
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Step-by-step explanation:

In many parts of the world, the year is made up of four different seasons. These seasons are spring, summer, fall, and winter. Each has its own pattern of weather and varying hours of sunlight during the days. The northern and southern parts of Earth have different seasons at the same time.

6 0
3 years ago
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The log of x cubed times y squared simplified
tresset_1 [31]

Answer:

log(x^{3}y^{2}) = 3 log x+2 log y

Step-by-step explanation:

Step 1:-

using logarithmic formula log(ab)=log a+log b

so given log(x^{3} y^{2} ) = log (x^{3} )+log(y^{2} )

now simplify

                                              = 3 log x+2 log y

<u>Answer:</u>-

log(x^{3}y^{2})= [tex]3 log x+2 log y

4 0
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The formula d = rt. Find how long it takes an airplane to fly 375 at 500 miles per hour
8090 [49]
375=500t 375/500=t 0.75=t
8 0
3 years ago
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