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2 years ago

5z+2z^3+3z^4 in standard form

Mathematics

1 answer:

julia-pushkina [17]2 years ago

6 0

Answer:

= 3z4 - 2z2 -5z

Step-by-step explanation:

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H(x)=-x^2+10x-16 What is the height of the ball at the time it is thrown

elena-s [515]

Answer:

Step-by-step explanation:

Before the ball is thrown, it is at the ground level. At the ground level, the height is zero. Substitute h = 0 into the equation;

h(x)=-x^2+10x-16

0=-x^2+10x-16

x^2-10x+16 = 0

Factorize

x^2-8x-2x+16 = 0

x(x-8) - 2 (x-8) = 0

x-2 = 0 and x - 8 = 0

x = 2 and 8

At x = 2

h(2) = -2^2 + 10(2) - 16

h(2) = -4 + 4

h(2) = 0

<em>Hence the height of the ball at the time it is thrown is 0m</em>

7 0

3 years ago

What fraction is 2500 of 3600

Delvig [45]

Answer:

25/36

Step-by-step explanation:

put 2500 over 3600 and remove the 0's to simplify it

8 0

2 years ago

Write an equation of the circle with center (-7, -4) and radius 6 .

siniylev [52]

Answer:

(x+7)^2 + (y+4)^2 = 6^2

(x+7)^2 + (y+4)^2 = 36

Step-by-step explanation:

We can write the equation of a circle in the form

(x-h)^2 + (y-k)^2 = r^2

Where (h,k) is the center and r is the radius

(x--7)^2 + (y--4)^2 = 6^2

(x+7)^2 + (y+4)^2 = 6^2

(x+7)^2 + (y+4)^2 = 36

8 0

3 years ago

Trains Two trains, Train A and Train B, weigh a total of 192 tons. Train A is heavier than Train B. The

OleMash [197]

Hi there!

So we know that the two train together is a total of 192 tons and the difference of their weights is 120 tons...

Ok let think...

When we’re looking at the once place, you’ll see a two... this means that the two train both have a ending of 1 since 2 is split into 1...

That would be another clue..

Now let think again...

If it would be 151 and we subtract by 120.. we would get...

$151-120=31$

Well it ends with a 1 so it would be perfect but we have to see if 151 and 31 together adds up with the total of 192..

$151+31=192$

This means that train A could be 151 tons or 31 tons and train B can also be wither 151 tons or 31 tons...

6 0

3 years ago

To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of

postnew [5]

Answer:

The student's GPA for that term is 3.07

Step-by-step explanation:

So this is a problem where we need to compute a weighted arithmetic mean.

To compute the weighted arithmetic mean of a set, we need to multiply each value of the set by their respective weight, add them, and then divide by the sum of the weights.

I will write the set in a {V,W} way, where V is the value(the grade) and W is the weight of V.

So your set G will be

G = {{3.8, 5}, {1.8,3}, {3.1,5}, {3.1,5}}.

Multiplying each value by it's respective weigth and then adding, we have:

3.8*5 + 1.8*3 + 3.1*5 + 3.1*5 = 19 + 5.4 + 15.5 + 15.5 = 55.4

The sum of the weigths is 5 + 3 + 5 + 5 = 18

So the student's GPA for that term, rounded to two decimal places, is: 55.4/18 = 3.07

4 0

2 years ago