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
mariarad [96]
3 years ago
13

During December, the average daily temperature in a town is 21.7°C. The average

Mathematics
1 answer:
ra1l [238]3 years ago
4 0

Answer: -4.9 degrees Celsius

Step-by-step explanation:

-1.7 minus 3.2 is -4.9

You might be interested in
Last week, a candle store received $355.60 for selling 20 candles. Small candles sell for $10.98 & large candles sell for $2
muminat
The answer is B. They sold 8
7 0
2 years ago
At Joyce's school, tickets for a concert were sold at the rate of 40 per half hour. How many tickets were sold in 7 hours
erik [133]
170 tickets were sold
6 0
3 years ago
Read 2 more answers
Thank you for anyone who knows this
katen-ka-za [31]

Answer:  

  • Part (a) Vertex = (-3, -1)
  • Part (b) Vertex = (4, 5)
  • Part (c) function 2; max value = 5

=====================================================

Explanations:

Part (a)

In this case, the vertex is the highest point, so the vertex of function 1 is (-3, -1)

If the parabola was flipped so that it opened upward, instead of downward, then the vertex would be the lowest point.

----------------------------

Part (b)

We could graph this function to see where the highest or lowest point is, but there's another way we could find the vertex using algebra.

The given equation is in the form y = ax^2 + bx + c where in this case

  • a = -2
  • b = 16
  • c = -27

The a and b values are plugged into the formula below to get

h = -b/(2a)

h = -16/(2*(-2))

h = -16/(-4)

h = 4

This is the x coordinate the vertex since the vertex is (h,k)

To find k, we plug that value of h into the original function to find its corresponding y value.

y = -2x^2 + 16x - 27

y = -2(4)^2 + 16(4) - 27

y = -2(16) + 16(4) - 27

y = -32 + 64 - 27

y = 5

We found that h = 4 leads to k = 5. The vertex is (h,k) = (4, 5)

----------------------------

Part (c)

We'll compare the y values of each vertex

  • Function 1 has a vertex of (-3, 1)
  • Function 2 has a vertex of (4, 5)

The vertex with the larger y value is the winner, so that would be function 2. This parabola reaches a higher peak compared to the other curve.

The max value here is y = 5. In other words, it's the maximum output the function can produce.

If you graphed functions 1 and 2 together on the same xy grid (see below), you'll see that the curve for function 2 reaches a higher peak.

7 0
2 years ago
9x squared -25 a difference of squares
aleksandr82 [10.1K]

Answer:

45xi is the answer

7 0
3 years ago
Please answer quick!!!
Sidana [21]

Answer:

A. 30

Step-by-step explanation:

The interquartile range for a box and whiskers plot, is the value from the right side of the box minus the value of the left side of the box.

In this case at the far right side of the box it is at 130, at the far left side of the box it is at 100.

130-100=30

4 0
3 years ago
Read 2 more answers
Other questions:
  • best walked 1/3 of a mile from her house to her friend's house one fourth of a mile to the post office and then another one half
    14·1 answer
  • Help with math algebra question in the picture
    8·1 answer
  • Which equation is the inverse of y=2x^2 - 8
    15·2 answers
  • Factor 225x2 - 1. A) (15x +1)(15x + 1) B) (15x - 1)(15x + 1) C) (15x - 1)(15x - 1) D) (125x - 1)(125x + 1)
    9·2 answers
  • Please help me ......:(
    14·1 answer
  • How to solve the matrix equation for matrix Y.simplify all elements
    15·1 answer
  • What is the angle of rotation for the following figure<br> 45°<br> 60°<br> 90°<br> 120°
    12·1 answer
  • Please help me with this ​
    15·1 answer
  • Emily and Kate were at a cheerleading competition this fall.They cheered 12 rounds. Each round lasted 8.24 minutes. Calculate th
    8·1 answer
  • George is going to sing 4 songs in
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!