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irina1246 [14]
3 years ago
10

PLEASE HELP ME!!

Mathematics
1 answer:
tatiyna3 years ago
3 0
For
y=ax²+bx+c
the x value of the axis of symmetry is -b/(2a)

so test them

A., -b/(2a)=-(-8)/(2*-2)=8/-4=-2, yep
B. -b/(2a)=-2/(2*1/2)=-2/1=-2, yep
C. -b/(2a)=-(-16)/(2*4)=16/8=2, nope, need -2
D. -b/(2a)=-12/(2*3)=-12/6=-2, yep

answer is C
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Llana [10]

Answer:

C which is  12

36 and 48 are both a multiple of 12

4 0
2 years ago
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There is a line who slope is 3 and who’s Y intercept is -10. Right it’s equation in slope intercept form
trapecia [35]

Step-by-step explanation:

substitute the given value in the standard form equation. it will give you the slope intercept form

3 0
3 years ago
18. Curry powder is sold at $7.45 per 100 g. How much money will Thuy need in order to buy 3 kg of curry powder?
MissTica

Answer:

Step-by-step explanation:

$7.45 = 100g

x = 3kg( 3 × 1000) = 3000g

∵ $7.45 = 100g

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A toll collector on a highway receives ​$8 for trucks and ​$5 for sedans. At the end of a 3​-hour ​period, she collected ​$208.
Vilka [71]

Answer:

The number of trucks and sedans can be

(0 trucks ,26 sedans)

(8 trucks ,21 sedans)

(24 trucks ,11 sedans)

(25 trucks ,1 sedans)

(32 trucks ,6 sedans)

(16 trucks ,16 sedans)

Step-by-step explanation:

Given:

The  cost for trucks =$5

The cost for sedans  =$8

The total amount collected = $208

To Find:

Number of trucks and sedans passed through the toll booth =?

Solution:

Let the number of trucks be x and the number of sedans be y

Then

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By Trail and error method

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5(25) + 8(1) = 208

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8 0
3 years ago
Find h(6) if h(x) = x2 - 2x - 5.
Alexus [3.1K]
To find h(6), we must plug in 6 into the function.

h(x) = x^2 - 2x - 5

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= 36 - 12 - 5
= 36 - 17 = 19
3 0
3 years ago
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