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
aniked [119]
3 years ago
13

Questions are in the attachments I’ll give a brainlist

Mathematics
1 answer:
bekas [8.4K]3 years ago
5 0

Answer:

Step-by-step explanation:

This is a piecewise function. It tells us for a certain interval of x do this to get f(x). -2 falls in the x = -2 part of this function. When x = -2 f(x) is -4 which is given to you.

Hope this helped.

JoeLouis2

You might be interested in
Jaylen hires a caterer for a party in his backyard. The caterer charges $100 for each hour, h, she is working at the party and $
Oksana_A [137]

Answer:

c= $100 per h + $25 for each p that attends.

Step-by-step explanation:

3 0
3 years ago
Which represents the square of the sum of a number and 4 is 36
vfiekz [6]
36 divided by 4 =(9) which is the correct answer plz give brainliest
6 0
3 years ago
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T min
Maslowich

Answer:

67.3°C

Step-by-step explanation:

A = 25, T(0) = 100, T(1) = 90, find T(4)

dT/dt = -k(T - A)

d(T - A)/dt = -k(T - A)

d(T - A)/(T - A) = -k dt

ln(T - A) = lnC - kt

T(t) -A=Ce^{-kt}\\T(t) = A + Ce^{-kt} = 25 + Ce^{-kt}\\T(0) = 25 + C = 100\\C=75

T(t) = 25 + 75e^{-kt}\\T(1) = 25 + 75e^{-k} = 90\\75e^{-k} = 65\\e^{-k} = \frac{65}{75}, k = ln\frac{75}{65} = 0.1431\\T(t) = 25+75e^{-0.1431t}\\T(4) = 25+75e^{-0.1431\times4} = 67.3

4 0
3 years ago
work out the circumference of this circle take (pie) to be 3.142 and give ur answer in 1 decimal place radius=9m
Whitepunk [10]

Answer:

56.6m to 1.d.p

Step-by-step explanation:

circumference=2πr

=2×3.142×9

=56.556m

=56.6m to 1.d.p

4 0
4 years ago
What is the mass of an object that has a density of 8 g/cm3 and a volume of 64 cm3
My name is Ann [436]

Answer:

Step-by-step explanation:

multiply 64 and 8

512

6 0
3 years ago
Other questions:
  • Mr. Hodges wants to build a fence around his entire rectangular garden. What is the total distance around the garden?
    14·1 answer
  • Which best describes how to find an equation of the line shown?
    10·1 answer
  • What are the solutions to the quadratic equation 2x^2+10x-48=0
    10·2 answers
  • Carl wrote three numbers between 0.47 and 0.48 What numbers did Carl write?
    9·1 answer
  • For the month of march, Kasey plans to vacuum her floor every fourth day and clean her bathroom every seventh day if she begins
    7·1 answer
  • Karem drives his car 96 miles in 1 hours. If Karem continues to drive at this rate, how many miles will he travel
    6·2 answers
  • Find the missing angle. ​
    12·1 answer
  • Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=8.
    12·1 answer
  • A bag contains 4 red marbles, 6 blue marbles and 2 green marbles. If twc marbles are
    10·1 answer
  • Sandra bought 3 pounds of sweet potatoes for $4.89. What is the cost per pound of the sweet potatoes?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!