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4 years ago

4 Student is 20% of ____ students

Mathematics

2 answers:

luda_lava [24]4 years ago

5 0

Answer:

4 Student is 20% of 20 students

Step-by-step explanation:

if 4 = 20% then 1 = 5% to get a hundred percent then you need to multiply by 20

so 20

4 Student is 20% of 20 students

Art [367]4 years ago

4 0

Answer:

4 Student is 20% of _20___ students

Step-by-step explanation:

20% of x = 4

20% = 0.20

of means multiplication so

0.2 * x = 4

x = 4 / 0.2 = 40 /2 =20

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Factoring using GCF 15cd + 30c^2d^2

olchik [2.2K]

Answer:

15cd(1 + 2cd)

Step-by-step explanation:

greatest common factor is 15cd

$15cd*1 + 15cd*2cd\\= 15cd(1 + 2cd)$

8 0

2 years ago

A baseball is hit into the air, and its height h in feet after t seconds is given by h(t)= -16t^2+128t+2. The height of the bas

tankabanditka [31]

Answer:

$\large \boxed{\sf \ \text{2 feet, 4 seconds, 258 feet } \ }$

Step-by-step explanation:

Hello,

To know the height of the baseball when it is hit we have to compute h(0), as t = 0 is when the baseball is hit into the air.

$h(0)=-16\cdot 0^2+128 \cdot 0+2=2$

So, the answer is <u>2 feet.</u>

<u />

h(x) is a parabola which can be written as $ax^2+bx+c$ , it means that the vertex is the point (-b/2a,h(-b/2a)).

The baseball reached its maximum height after

$\dfrac{-b}{2a}=\dfrac{-128}{-2*16}=\boxed{4 \text{ seconds}}$

And the maximum height of the baseball is h(4).

$h(0)=-16\cdot 4^2+128 \cdot 4+2=-256+512+2=\boxed{258 \ \text{feet}}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

8 0

3 years ago

Sooooooooooooo..........

Alika [10]

Answer:

You can usually just go to profile and change your email and it will change your name necasue your name comes from your email.

Hope this helps

PLease mark me as Brainliest

8 0

3 years ago

Read 2 more answers

)) How do you write this number using words?<br>408,590

N76 [4]

Answer:

Four hundered eight thousand five hundered nintey

Step-by-step explanation:

(DON´T FORGET TO ADD ¨UNITS¨ OR WHATEVER YOU ARE COUNTING/MEASURING!!!!)

6 0

3 years ago

(16x3 + 40x2 + 72) (2x + 6)

Volgvan

$(16x^3+40x^2+72)(2x+6)=32x^4+96x^3+80x^3+240x^2+144x+432=32x^4+176x^3+240x^2+144x+432$

In this case, you have to multiply each term of one parenthesis by each term in the second bracket. After receiving a number of factors need to be segregated and placed in the correct order.

8 0

3 years ago