1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lyrx [107]
3 years ago
13

Evaluate the expression for the given variable. Show all work to earn credit 2x2 + 3y +6 if x = 2 and y = 9?

Mathematics
1 answer:
Sladkaya [172]3 years ago
4 0

Answer:

41

Step-by-step explanation:

You might be interested in
Find the range and interquartile range (IQR) of the data set in the box plot.
Eduardwww [97]

Answer:

Range = 23

IQR= 14.5

Step-by-step explanation:

Range is the biggest number- smallest number

so 30-7=23

IQR - Interquartile range = upper quartile - lower quartile

24-9.5=14.5

6 0
2 years ago
F(x)=-1/2(x-2)^2-4 <br> Graph the function
telo118 [61]

Answer:

  see below

Step-by-step explanation:

The function is written in vertex form. It has a negative vertical scale factor, so you know ...

  • the vertex is (2, -4)
  • the vertical scale factor is 1/2
  • the parabola opens downward

Vertex form is ...

  f(x) = a(x -h)^2 +k . . . . . . . . . . vertical scale factor "a", vertex (h, k)

__

Since you know the vertex and scale factor, you can plot some points on the graph. I find it convenient to think in terms of units either side of the vertex. These are values of x that would make (x-2)^2 be 1^2, 2^2, 3^2, 4^2 and so on. The vertical scale factor of -1/2 tells you that the y-differences for these points will be -1/2, -4/2, -9/2, -16/2 from the vertex. Then we have ...

  vertex: (2, -4)

  1 unit either side of the vertex: (1, -4.5), (3, -4.5)

  2 units either side of the vertex: (0, -6), (4, -6)

  3 units either side of the vertex: (-1, -8.5), (5, -8.5)

  4 units either side of the vertex: (-2, -12), (6, -12)

You can plot these points and draw a smooth curve through them. Or, you can let a graphing calculator do it. The result will be similar to that shown below.

6 0
3 years ago
Find the area of the shaded region
nexus9112 [7]

Answer:

40

Step-by-step explanation:

area of shaded region = area of whole figure - area of non shaded region

area of whole figure: The whole figure is a rectangle

The area of a rectangle can simply be calculated by multiplying the width by the length

The given width is 10ft and the given length is 8ft

Hence area of whole figure = 10 * 8 = 80ft²

Area of non shaded region: the non shaded region also creates a rectangle

Like stated previously the area of a rectangle can simply be calculated by multiplying the width by the length

The given width is 5ft and the given length is 8ft

Hence, area of non shaded region = 5 * 8 = 40ft²

Finally we can find the area of the shaded region.

We can easily do this my subtracting the area of the nonshaded region from the area of the whole figure

If we have identified that the area of the whole figure is 80 and the area of the non shaded region is 40

Then, area of shaded region = 80 - 40 = 40ft²

6 0
2 years ago
Danae is choosing between two jobs. One job pays an annual bonus of $1,500 plus $120 per day worked. The second job pays an annu
Zigmanuir [339]

Answer:

C


Step-by-step explanation:


<u>Job A:</u>

  • Bonus of $1500
  • $120 per day for d days is 120 multiplied by d. Which is 120d
  • Total Payment = 1500+120d

<u>Job B:</u>

  • Bonus of $2500
  • $110 per day for d days is 110 multiplied by d. Which is 110d
  • Total Payment = 2500+110d

Solving these 2 equations for d would tell us after how many days both job would pay the same. Answer choice C is correct.

4 0
3 years ago
Read 2 more answers
Please help! Could you answer all!?
Brums [2.3K]

Answer:

1.) 48

2.) 65

3.) 36

Step-by-step explanation:

1.)     If the equation is 6(x-4) and x = 12, then all we have to do is plug in the value of x. When we plug in, all we do is substitute 12 for x because they mentioned in the question that x = 12. So, we end up getting 6(12 - 4). After solving this, we get 48.

2.)     This problem is a lot like the last problem. All we need to do is substitute /plug in the values of x and y into the equation, to get 4(4^2) - 35/7 - (8 + 14). After solving, we get 65.

3.) .     This problem, once again, is also a lot like the last problems. We need to substitute the value of x into the equation 8x+12. Since we know from the problem that x is 3, all we have to do is 8 * 3 + 12.

3 0
3 years ago
Read 2 more answers
Other questions:
  • X - 1/5=1/2 what's x?
    7·2 answers
  • Which are the roots of the quadratic function f(b) = b2 – 75? check all that apply. b = 5 square root of 3 b = -5 square root of
    7·1 answer
  • A clockwise rotation of 180 is the same as a counterclockwise rotation of
    5·1 answer
  • 3) A cable company had 595 subscribers. The ratio of regular subscribers to premium
    9·1 answer
  • Can 1 be an additive identity?
    13·1 answer
  • you have $220 in your savings account. you take #35 from your account each week for four weeks? How much is left in your account
    9·1 answer
  • 1. Order from smallest to Largest
    5·1 answer
  • I am going to bye a three bags of plums and the cost of the plums are $4000 but I only have $300 how many more money do I need
    13·1 answer
  • 17 ft.<br> 8 ft.<br> 15 ft.<br><br> What is the area of the triangle above?
    12·2 answers
  • Find the GCFl: 16x 3 y 2 , 28x 2 y
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!