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
Sindrei [870]
3 years ago
8

At noon, the temperature is 30°F. For the next several hours the temperature falls by an average of 3°F an hour. Write an equati

on for the temperature T, and n hours
Mathematics
1 answer:
Sophie [7]3 years ago
7 0
30*3-30 I’m not good with math but it’s worth the points
You might be interested in
Please help!! I’m stuck on this
beks73 [17]

Answer:

B.  x = -4\,\lor \,x = -1

Step-by-step explanation:

Let \sqrt{-4-5\cdot x} = x, we solve for x by algebraic means.

1) \sqrt{-4-5\cdot x} = x Given

2) -4-5\cdot x = x^{2} Definition of power/Symmetry of equality

3) x^{2}+5\cdot x + 4 = 0 Compatibility with addition/Commutative and associative properties/Existence of additive inverse/Modulative property

4) (x+4)\cdot (x+1) = 0         x^{2}+(a+b)\cdot x +a\cdot b = (x + a)\cdot (x+b)

5) x = -4\,\lor \,x = -1 Result

Hence, the correct answer is B.

7 0
2 years ago
Please look at the included picture, show me your work and please include a good explanation. It would really help me out here.
Jobisdone [24]

These are indeed equivalent, and this identity is one of DeMorgan's laws.

The 6th column is the negation of the 5th column. For example, the first row says

not <em>p</em> or <em>q</em>

is true (T), so the negation would be false (F). The 5th column reads {T, F, T, T}, so the next column should be {F, T, F, F}.

Then in the 7th/last column, you are checking the truth value of the statement

<em>p</em> and not <em>q</em>

For example, in the first row, both <em>p</em> and <em>q</em> are true (T). This means (not <em>q</em>) is false, so (<em>p</em> and not <em>q</em>) is false (F). The last column should end up reading {F, T, F, F}, same as the previous column.

8 0
3 years ago
Simplify: 26 - 2(7 + 3^2)<br><br> please answer with one of the options below:)
ad-work [718]
-6 so option D is the answer
7 0
3 years ago
Francine has a piece of wood that is five 5 5/12 feet long she uses three 3 1/4 feet of the wood from a science project how much
zhannawk [14.2K]

Answer:

4/3 ft

Corrected question;

Francine has a piece of wood that is five 5/12 feet long she uses three 1/4 feet of the wood from a science project how much for just Francine have left.

Step-by-step explanation:

Given;

Francine has a piece of wood that is five 5/12 feet long.

Total amount of wood T = 5 × 5/12 ft = 25/12 ft

she uses three 1/4 feet of the wood from a science project.

Amount of wood Used U = 3 × 1/4 = 3/4 ft

The amount of wood left equals the total amount of wood minus the amount of wood used;

The amount of wood left L = T - U = 25/12 - 3/4

L = 25/12 - 9/12

L = 16/12

L = 4/3 ft

6 0
3 years ago
Plzzzzzzzz helpppppp
N76 [4]

Answer:

yoo its super hard to read can you zoom in on em?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is x 2(2x+3)-2=5
    14·1 answer
  • Evaluate (ab)^2 for a=3 and b=4
    12·2 answers
  • Which or the following is the radical expression of 4d3/8
    8·1 answer
  • The value of x and y in both equations
    9·1 answer
  • How is the expression (5 + y) ⋅8 described by its factors and terms?
    13·2 answers
  • -110 = -2(8x + 7)<br> A) (6) B) (16)<br> C) {9} D) (14)
    13·2 answers
  • a car has 15 gallons of gas in its tank the car travels 35 miles per gallon of gas how much gas does the car used to go 100 mile
    10·1 answer
  • The Smiths spend 8% of their budget on entertainment. Their total budget this year is $2,000 more than last year, and this year
    10·2 answers
  • How many cups of yogurt would 5 people get if they equally shared 3/4 cups of yougurt
    10·1 answer
  • Whats the y-intercept
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!