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3 years ago

Tony drove at an average speed of 44.2 miles per hour of 2.12 hours. How many miles did he travel all together

Mathematics

1 answer:

stiv31 [10]3 years ago

6 0

Answer:

110.5

Step-by-step explanation:

there are 24 hours in a day so .12 would be equal to 1/2 or .5 and 44.2 times 2.5 is 110.5

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Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated

Illusion [34]

Answer:

$x=-2,0,3$

Step-by-step explanation:

We have been given a function $f(x)=15x^3-15x^2-90x$ . We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

$15x^3-15x^2-90x=0$

Now, we will factor our equation. We can see that all terms of our equation a common factor that is $15x$ .

Upon factoring out $15x$ , we will get:

$15x(x^2-x-6)=0$

Now, we will split the middle term of our equation into parts, whose sum is $-1$ and whose product is $-6$ . We know such two numbers are $-3\text{ and }2$ .

$15x(x^2-3x+2x-6)=0$

$15x((x^2-3x)+(2x-6))=0$

$15x(x(x-3)+2(x-3))=0$

$15x(x-3)(x+2)=0$

Now, we will use zero product property to find the zeros of our given function.

$15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0$

$15x=0\text{ (or) }x-3=0\text{ (or) }x+2=0$

$\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0$

$x=0\text{ (or) }x=3\text{ (or) }x=-2$

Therefore, the zeros of our given function are $x=-2,0,3$ .

7 0

4 years ago

long beach calif has an elevation of -7 new orleans louisiana is 8 feet below sea level. which city has a lower elevation?

svet-max [94.6K]

Answer:

New Orleans Louisiana is lower

Step-by-step explanation:

California: 7 below sea level

Louisiana: 8 below sea level

5 0

4 years ago

The relationship between fahrenheit and celsius scales is given by F=9/5C+32. Determine the value in celsius when F=-3?

IgorLugansk [536]

-3 = 9C/5 + 32

9C/5 = - 32 - 3

9C/5 = - 35

9C = - 175

C = -175/9

C = - 19.44

5 0

3 years ago

I’ll mark you brainliest!!!!! Which point is a solution to the inequality represented by this graph?

Amiraneli [1.4K]

Answer:

A is a solution because it is in the shaded area.

Step-by-step explanation:

5 0

3 years ago

Which of the following describes a situation in which the total distance a baseball player travels is zero meters from his start

ipn [44]

The first one
Running forward is adding
Running opposite direction is subtracting
5-5
5-6
6-5
6-0

5-5 is the only one that equals 0

5 0

3 years ago