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2 years ago

Hurry I am timed and need the answer to this question 5.6 ÷ 1,000

Mathematics

1 answer:

Anon25 [30]2 years ago

3 0

Answer:

0.0056

Step-by-step explanation:

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(-3,20) (3,0) (18,20) (13,18) is it a function

S_A_V [24]

Answer: No

Step-by-step explanation: The table does not have a function rule that is linear, quadratic, or cubic.

4 0

2 years ago

Could you plz help me on my hw

Korolek [52]

7. p=0.4
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2 years ago

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

Select ALL of the following scenarios that can be modeled by the equation 3t−6=17 .

Ne4ueva [31]

The answer is: <span>If you triple the number of miles Karin lives from the school and then add six, you get 17 miles.</span>

4 0

2 years ago

What is -2 1/8 divided by 1 1/4

damaskus [11]

Answer:

-17/10 ( or 1 7/10)

Step-by-step explanation:

-2 1/8 ÷ 1 1/4 (convert into improper fractions)

= (-17/8) ÷ (5/4)

= (-17/8) x (4/5)

= - (17 x 4) / (8 x 5)

= -68/40

= -17/10 ( or 1 7/10)

4 0

3 years ago