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IceJOKER [234]
3 years ago
11

A-2.5 2a-22.7 a+1.3 21.5 What’s a

Mathematics
1 answer:
rewona [7]3 years ago
8 0

Answer:

2.4

Step-by-step explanation:

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SERIOUSLY?!?!?! the anser is the second one there are noe letters so b
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The mr William two questions please!
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well, in short, the students and chaperones are at a 2 : 9 ratio, and we know there are 171 students, how many chaperones then, so long they maintain a 2:9 ratio?

\bf \cfrac{chaperones}{students}\qquad 2:9\qquad \cfrac{2}{9}\qquad \qquad \cfrac{x}{171}=\cfrac{2}{9}\implies 9x=2(171) \\\\\\ 9x=342\implies x=\cfrac{342}{9}\implies x=38

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3 years ago
У= 3х-5<br> у = 3х+12<br> Please help ASAP for my lil sister
exis [7]

Answer:

0

Step-by-step explanation:

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2 years ago
How did they get that vertex
Nataly_w [17]

Answer:A vertex (or node) of a graph is one of the objects that are connected together. The connections between the vertices are called edges or links. A graph with 10 vertices (or nodes) and 11 edges (links).

Step-by-step explanation: (The vertex formula is derived from the completing-the-square process, just as is the Quadratic Formula. In each case, memorization is probably simpler than completing the square.) For a given quadratic y = ax2 + bx + c, the vertex (h, k) is found by computing h = –b/2a, and then evaluating y at h to find k.

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Evgesh-ka [11]

Answer:

(Down Below)

Step-by-step explanation:

Plug in the value of x in the left column for all the values in the equation. I will do a couple for you.

Since -4 is the value of x, substitute it into the equation for x.

y= -4-5=-9

-1

y=-1-5=-6

0

y=0-5=-5

You can do the rest. You got this! Comment if you need more help!

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