4 years ago

What is the vertex of the graph of the function f(x) = x2 + 6x + 9?

Mathematics

1 answer:

eduard4 years ago

7 0

A
Pls mark brainliest

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Jenya has 12 bills in her wallet. She has a total of $82. If she has twice as many $5 bill as $1 bills, and two more $10 bills t

emmasim [6.3K]

You can use logic to say right off the bat that you have 2 one dollar bills
if you said you had 7 instead there would be not enough bills to add up to 82

so that means 4 $5 and 6 $10

check you have 12 bills and it adds up to $82

2 $1
4 $5
6 $10

6 0

3 years ago

1.The sum of four consecutive whole numbers is 54. What are the four numbers?

Oksi-84 [34.3K]

2 answer Let x be weight of the baby 142=78+69-2x 142=147-2x 147-142 =2x 5=2x 2.5 = x

8 0

3 years ago

One angle of a right triangle measures 60°. The side opposite this angle measures 15 inches.

Delicious77 [7]

Step-by-step explanation:

To solve this question I would use the sin rule.

The sin rule states that

$\frac{a}{ \sin(a) } = \frac{b}{ \sin(b) }$

Therefore if you substitute in your numbers you get:

$\frac{a}{ \sin(90) } = \frac{15}{ \sin(60) }$

If you rearrange that you get:

$a = \frac{15}{ \sin(60) } \times \sin(90)$

Therefore a = 17.3 Inches (to 3 sf)

This can also be done with basic trigonometry where you would get

$\sin(60) = \frac{15}{h}$

Rearranging to

$h = \frac{15}{ \sin(60) }$

meaning the answer is 13.7 inches

6 0

4 years ago

Read 2 more answers

PLEASE ANSWER AS SOON AS POSSIBLE!

Alla [95]

Answer:

Step-by-step explanation:

4.25 times x equals y

6 0

3 years ago

I don't know how to do the questions on the page can you help me

tino4ka555 [31]

13. 10-14
14.I can't see the whole graph, so you need to do it yourself. Add up everyone's age and divide by the amount of people on the graph. That will give you the average.

8 0

3 years ago