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faust18 [17]
3 years ago
6

I WILL MARK BRAINLIEST!

Mathematics
1 answer:
Bess [88]3 years ago
7 0

Answer:

choice 2

Step-by-step explanation:

since assistive property main meaning is changing the grouping does not change the sum choice 2 would be the best becouse only the grouping changed

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The polynomial function f(x) = 3x5 – 2x2 + 7x models the motion of a roller coaster. The roots of the function represent when th
cupoosta [38]

Answer:

x=0

Step-by-step explanation:

We have been given that a polynomial function f(x)=3x^{5}-2x^{2}+7x models the motion of a roller coaster. Every root of the polynomial represent when the roller coaster is at the ground level.

In order to find all the potential values of x when roller coaster is at the ground level, we find the zeroes of the polynomial by factoring it as shown below:

f(x)=3x^{5}-2x^{2}+7x\\f(x)=x(3x^{4}-2x+7)\\

The zeroes of this polynomial occur when either x=0 or 3x^{4}-2x+7=0.

The equation 3x^{4}-2x+7=0 have no real solutions. Therefore, the only time when the roller coaster is at the ground is at x=0


8 0
3 years ago
Read 2 more answers
What would the correct size of a scale drawing be if the room was 15ft by 20ft and scale was 2in =5ft
kirill115 [55]

Dimensions of the room are = 15 feet by 20 feet

The scale is given as = 5 feet = 2 inches

So, 15 feet = \frac{2}{5}\times15=6 inches

20 feet = \frac{2}{5}\times20=8 inches

Hence, length will be = 8 inches

Width will be = 6 inches

6 0
3 years ago
Which is an x-intercept of the continuous function in the
MAVERICK [17]

Answer:

The x-intercept is (3,0)

Step-by-step explanation:

Hopefully this was helpful!:)

8 0
4 years ago
A salt march harvest mouse ran a 360 cm straight course race in 9 seconds. How fast did it learn
Makovka662 [10]

Answer: 40c m/s  

Solution:  

Mouse ran 360 cm straight course race in 9 seconds.  

We need to find the rate or speed of mouse  

We know the speed formula is distance covered by given time.  

Speed=\frac{Distance}{Time}  

Where,  

Distance = 360 cm  

Time = 9 seconds  

\therefore   speed =\frac{360}{9}

Speed=40 cm/s  

Mouse ran with speed 40 cm/s


6 0
3 years ago
Read 2 more answers
The Height of a ramp is 11 inches and the length of its slanted side it 61 inches. What is the length of the base of the ramp?
o-na [289]

Triangle:

39 degrees, 33 degrees, 108 degrees

Side opposite the 108 degrees is 360 feet.

length asked for is d

Hope this helped you! Brainliest? :)

5 0
4 years ago
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