All categories

3 years ago

Picture above (: I have access to the answers, I just don’t know how to get to them.

Mathematics

1 answer:

Vadim26 [7]3 years ago

6 0

Can you explain more of what are we seeing plz, that would make me understand and tell you the answer

You might be interested in

Estimate the value 9.03 + 19.87 x 3.11 - 4.97

dybincka [34]

Answer:

Step-by-step explanation:

For this problem you would first round everything. 9.03 becomes 9, 19.87 becomes 20, 3.11 becomes 3 and 4.97 becomes 5. You then just do the problem. 9 + 20 = 29, multiplied by 3 makes 87, 87 - 5 = 82.

8 0

2 years ago

Find the root<br><br> X^3-125=0

Firlakuza [10]

Steps to solve:

x^3 - 125 = 0

~Add 125 to both sides

x^3 = 125

~Take cube root of both sides

x = 5

Best of Luck!

8 0

3 years ago

Read 2 more answers

Ryan bought a digital camera with a list price of $150 from an online store offering a 5% discount. He needs to pay $5.50 for sh

Ivenika [448]

Total cost = 0.95 x $150 + $5.50 = $142.50 + $5.50 = $148

5 0

2 years ago

Read 2 more answers

What is 10/25 simplified

Natalija [7]

$\frac{10}{25}= \frac{10\div5}{25\div5}=\boxed { \frac{2}{5} }$

5 0

2 years ago

Read 2 more answers

Explain how to find the vertex of 2x^2+12x+16

Elina [12.6K]

The vertex form:

$y=a(x-h)^2+k\\\\(h,\ k)-vertex$

Use $(a+b)^2=a^2+2ab+b^2\qquad(*)$

$2x^2+12x+16=2(x^2+6x)+16=2(x^2+2(x)(3))+16\\\\=2(\underbrace{x^2+2(x)(3)+3^2}_{(*)}-3^2)+16=2((x+3)^2-9)+16\\\\=2(x+3)^2+(2)(-9)+16=2(x+3)^2-18+16\\\\=\boxed{2(x-(-3))^2-2}\to h=-3,\ k=-2$

<h3>Answer: (-3, -2).</h3>

Other method:

$f(x)=ax^2+bx+c\\\\vertex:(h,\ k)\\\\h=\dfrac{-b}{2a},\ k=f(h)$

We have

$f(x)=2x^2+12x+16\\\\a=2,\ b=12,\ c=16$

Substitute:

$h=\dfrac{-12}{(2)(2)}=\dfrac{-12}{4}=-3\\\\k=f(-3)=2(-3)^2+12(-3)+16=2(9)-36+16=18-36+16=-2$

<h3>Answer: (-3, -2).</h3>

5 0

3 years ago