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
jok3333 [9.3K]
2 years ago
5

The temperature at 9 A.M. was 42°F. The next four hours the temperature dropped 2 degrees per hour. What was the temperature at

1 P.M.?
​
Mathematics
2 answers:
Zinaida [17]2 years ago
7 0

Answer:

34

Step-by-step explanation:

2x4 = 8, 42-8 = 34

Varvara68 [4.7K]2 years ago
5 0

Answer:

34 degrees farenheit yeee

You might be interested in
Suppose you have two hyperbolas that are the same except that the transverse axis and conjugate axis are switched. How does swit
Nonamiya [84]
Check the picture below.

assuming both hyperbolas at centered at the origin, the values for the numerator and denominator will switch, so that the slope of one is the reciprocal of the other's slope.

6 0
3 years ago
Part 4: Identify the vertex, focus and directrix of each. Then sketch the graph.
Nezavi [6.7K]

Answer: 1) Vertex: (6, -2)    Focus: (6, -7/4)     Directrix: y = -9/4

              2) Vertex: (-2, -1)   Focus: (-7/4, -1)     Directrix: x = -9/4

<u>Step-by-step explanation:</u>

Rewrite the equation in vertex format y = a(x - h)² + k   or   x = a(y - k)² + h by completing the square. Divide the b-value by 2 and square it - add that value to both sides of the equation.

  • (h, k) is the vertex
  • p is the distance from the vertex to the focus
  • -p is the distance from the vertex to the directrix

    \bullet\quad a=\dfrac{1}{4p}

1) y = x² - 12x + 34

y-34=x^2-12x\\\\y-34+\bigg(\dfrac{-12}{2}\bigg)^2=x^2-12x+\bigg(\dfrac{-12}{2}\bigg)^2\\\\\\y-34+36=(x-6)^2\\\\y+2=(x-6)^2\\\\y=(x-6)^2-2\qquad \rightarrow \qquad a=1\quad (h,k)=(6,-2)\\

a=\dfrac{1}{4p}\quad \rightarrow \quad 1=\dfrac{1}{4p}\quad \rightarrow \quad p=\dfrac{1}{4}\\\\\\\text{Focus = Vertex + p}\\.\qquad \quad =\dfrac{-8}{4}+\dfrac{1}{4}\\\\.\qquad \quad =-\dfrac{7}{4}\quad \rightarrow \quad\text{Focus}=\bigg(6,-\dfrac{7}{4}\bigg)\\\\\\\text{Directrix: y= Vertex - p}\\.\qquad \qquad y=\dfrac{-8}{4}-\dfrac{1}{4}\\\\.\qquad \qquad y=-\dfrac{9}{4}

*******************************************************************************************

2) x = y² + 2y - 1

x+1=y^2+2y\\\\x+1+\bigg(\dfrac{2}{2}\bigg)^2=y^2+2y+\bigg(\dfrac{2}{2}\bigg)^2\\\\\\x+1+1=(y+1)^2\\\\x+2=(y+1)^2\\\\x=(y+1)^2-2\qquad \rightarrow \qquad a=1\quad (h,k)=(-2,-1)\\

a=\dfrac{1}{4p}\quad \rightarrow \quad 1=\dfrac{1}{4p}\quad \rightarrow \quad p=\dfrac{1}{4}\\\\\\\text{Focus = Vertex + p}\\.\qquad \quad =\dfrac{-8}{4}+\dfrac{1}{4}\\\\.\qquad \quad =-\dfrac{7}{4}\quad \rightarrow \quad\text{Focus}=\bigg(-\dfrac{7}{4},-1\bigg)\\\\\\\text{Directrix: x= Vertex - p}\\.\qquad \qquad y=\dfrac{-8}{4}-\dfrac{1}{4}\\\\.\qquad \qquad x=-\dfrac{9}{4}

4 0
3 years ago
Use one transformation to solve n-4.6=2.98
Serggg [28]
What are the options of tranformation ??/
8 0
2 years ago
Read 2 more answers
If the perimeter of the adult pinball machine is 177 inches, what is the lenght, in inches of g'a'?
borishaifa [10]
The length of the paintball machine could vary. If it is a square; then it would be 44.25 in. If it was a rectangle the answer Could be many different lengths, but one is 65 in (Width 23.5 in) I hope this helped ^^
4 0
2 years ago
Giovanna,Frances, and their dad each carried a ten pound bag of soil into the back yard. After putting soil in the first flower
Greeley [361]
First find the common denominator
5/8=25/40
2/5=16/40
3/4=30/40
Next you can cross multiply
25/40=x/10 pounds
16/40=x/10 pounds
30/40=x/10 pounds
First
25(10)/40= 6.25 pounds
16(10)/40= 4pounds
30(10)/40= 7.5 pounds
These are the amounts that were left in the bag

10-6.25=3.75
10-4=6
10-7.5=2.5

3.75+6+2.5= 12.25

All together they put 12.25 pounds of soil in the flower bed

3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone explain this to me? I don't understand how they got from what I labeled 1 to what is labeled 2. Where did the 1/3 co
    9·2 answers
  • ‭‭ A group of circular bottle caps have been arranged in rows and columns with an equal number of caps in each row and column. T
    6·2 answers
  • 90 minus 50 divided by 5 times 6 plus 2
    11·2 answers
  • What is 189(4)-17+20=y
    7·2 answers
  • How to graph absolute value functions?
    13·1 answer
  • A sequence is defined by the formula f(n+1)=f(n)-3. If f(4)=22, what is f(1)?
    14·1 answer
  • What is the value of 24,093 + 3?<br> A. 831<br><br> B. 8031<br><br> C. 8301<br><br> D. 8310
    9·1 answer
  • Okay have posted the next one.
    14·2 answers
  • A nutritional consulting company is trying to find what percentage of the population of a town is overweight. The marketing depa
    5·1 answer
  • How can you compare data sets?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!