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irinina [24]
3 years ago
6

Complete the statements below that show y = 8x2 + 32x + 17 being converted to vertex form. Factor out the leading coefficient. y

= 8(x2 + 4x) + 17 Form a perfect-square trinomial. y = 8(x2 + 4x + ) + 17 +
Mathematics
2 answers:
alekssr [168]3 years ago
8 0
8(x^2<span> + 4</span>x<span> +</span><span>4</span><span>) + 17 +</span><span> -32</span>
Nataly [62]3 years ago
7 0
ANSWER

y=8(x^2+4x+4)+17-32

EXPLANATION

We were given y=8x^2+32x+17.

To convert to vertex form, We factor out the leading coefficient which is 8.

y=8(x^2+4x)+17

Next, we form a perfect square by adding and subtracting 8(2)^2 to get;

y=8(x^2+4x)+8(4)+17-8(4)

We factor and combine the first two terms with a common factor of 8 to get,

y=8(x^2+4x+4)+17-8(4)^2

This simplifies to

y=8(x^2+4x+4)+17-32
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Answer:

Liam can paint 18 bird houses.

Step-by-step explanation:

9/10 divided by 1/20 = 18

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2 years ago
A surveyor is attempting to find the distance across a pond. From a point on
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Sorry don’t know! Hope u find someone that does know
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Marge drive 290 miles in five hours. Three hours were on the interstate, then the remainder of the trip was on a road that cause
vivado [14]

Marge drove by 66 miles per hour on the interstate

Step-by-step explanation:

Marge drive 290 miles in five hours, her trip has two stages

  1. She drove 3 hours on the interstate
  2. The remainder of the trip was on a road that caused her to reduce her speed by 20 mph

We need to find how fast Marge drove on the interstate

Assume that she drove by speed x miles per hour on interstate

∵ Distance = speed × time

∵ Her speed on the interstate is x mph

∵ The time of interstate is 3 hours

∴ The distance of interstate = x × 3 = 3x miles

∵ The time of the total trip is 5 hours

∵ She spent 3 hours on the interstate

∴ The time of the remainder of the trip = 5 - 3 = 2 hours

∵ She reduced her speed 20 mph for the remainder of the trip

∴ Her speed on the remainder of the trip = x - 20 mph

∴ The remainder distance = (x - 20) × 2

∴ The remainder distance = 2x - 40 miles

∵ The total distance of the trip is 290 miles

- Equate the sum of the two distances above by 290

∴ 3x + 2x - 40 = 290

- Add the like terms in the left hand side

∴ 5x - 40 = 290

- Add 40 to both sides

∴ 5x = 330

- Divide both sides by 5

∴ x = 66

Marge drove by 66 miles per hour on the interstate

Learn more:

You can learn more about speed, time and distance in brainly.com/question/9998060

#LearnwithBrainly

7 0
3 years ago
PLEASE HELP QUICK QUESTION EARN 20 POINTS
slamgirl [31]

Answer:  The correct option is (D) 36.

Step-by-step explanation:  We are given to find the value of 'y' that would make OP parallel to LN.

MO = 28 units, OL= 14 units, Pl = 18 units and MP = y = ?

From the figure, we have

if OP ║ LN, then we must have

∠MOP = ∠MLN

and

∠MPO = ∠MNL.

Since ∠M is common to both the triangles MOP and MLN, so by AAA postulate, we get

ΔMOP similar to ΔMLN.

We know that the corresponding sides of two similar triangles are proportional, so

\dfrac{MO}{ML}=\dfrac{MP}{MN}\\\\\\\Rightarrow \dfrac{MO}{MO+OL}=\dfrac{MP}{MP+PN}\\\\\\\Rightarrow \dfrac{28}{28+14}=\dfrac{y}{y+18}\\\\\\\Rightarrow \dfrac{28}{42}=\dfrac{y}{y+18}\\\\\\\Rightarrow \dfrac{2}{3}=\dfrac{y}{y+18}\\\\\\\Rightarrow 2y+36=3y\\\\\Rightarrow y=36.

Thus, the required value of 'y' is 36.

(D) is the correct option.

4 0
3 years ago
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Give an example how to use a number line to multiply a 2 digit number by 20
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You would start on x(x being the 2 digit number)and to multiply it by 20 you would move to the right x amount of spaces repeating this process 20 times.
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