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ella [17]
4 years ago
9

1. What is the vertex of the parabola?

Mathematics
2 answers:
MissTica4 years ago
8 0
Answer: Without the pictures, the only questions we can answer are #2 and #4.

#2
Choice B is wider than the graph of y = 3x^2 + 2. In a quadratic function like this, the value in front of the x^2 controls the width. Any positive number smaller than 3 would be wider.

#4
Choice A has the correct order. Again, the value in front of the x^2 controls how wide or narrow the graph is. First, take the absolute value of each value. Then, place them in order from greatest to least. The greater the number the narrower the graph.
choli [55]4 years ago
5 0

Answer:

1.c 2.b 3.d 4.a 5.d

Step-by-step explanation:

I just now took this test

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The equation shows the relationship between x and y:
wlad13 [49]

Answer: -7

Step-by-step explanation:

The equation is in slope-intercept form (y=mx+b), where m is the slope and b is the y-intercept

Therefore, the m value is -7 and it is the slope

4 0
2 years ago
ABC ~ DEF<br> What is the value for x, the length of side BC?
Stella [2.4K]

Answer:

17.5

Step-by-step explanation:

as the triangles are similar, when oriented in the same direction they have the same angles, and the lengths of all sides of DEF are the lengths of the sides of ABC but multiplied by the same scaling factor f for all sides.

so, we see that

A ~ D

B ~ E

C ~ F

and therefore

AB ~ DE

BC ~ EF

CA ~ FD

that means

DE = AB × f

EF = BC × f

FD = CA × f

we know DE and AB.

so,

4 = 10 × f

f = 4/10 = 2/5

and now we know

EF = 7 = BC × f

BC = 7/f = (7/1) / (2/5) = (5×7)/(2×1) = 35/2 = 17.5

7 0
3 years ago
4(1 – x) + 2 x = -3( x + 1)
Rashid [163]

Answer:

Step 1: Simplify both sides of the equation.

4(1−x)+2x=−3(x+1)

(4)(1)+(4)(−x)+2x=(−3)(x)+(−3)(1)(Distribute)

4+−4x+2x=−3x+−3

(−4x+2x)+(4)=−3x−3(Combine Like Terms)

−2x+4=−3x−3

−2x+4=−3x−3

Step 2: Add 3x to both sides.

−2x+4+3x=−3x−3+3x

x+4=−3

Step 3: Subtract 4 from both sides.

x+4−4=−3−4

x=−7

Step-by-step explanation:

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8 0
3 years ago
Aj needs to buy a new car.
BartSMP [9]

Answer:

24.56 minutes

Step-by-step explanation:

68,700 - (625 * x) = 53,350

We subtract 53,350 from both sides

15,350 - (625 * x) = 0

625x = 15350

x = 15350/625

x = 24.56

He needs to wait 24.56 minutes to get his car.

7 0
3 years ago
Help plz, will give points :)
Arada [10]

they intercept at point (3.5, 3.5) .... I think

4 0
3 years ago
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