Answer:
T < - 4°C
Step-by-step explanation:
Given that Mariana wears her coat only when temperature is colder than - 4°C
Recall that lower temperature values indicate higher degree of coldness ;
Hence, Mariana will only wear her coat when temperature values are lesser than - 4°C ; this means that the temperature at that period is colder than - 4°C.
Hence, the inequality expression which is only true for temperatures when Mariana wears her coat can be written as :
Temperature = T
T < - 4°C
Answer:
t < -4
Step-by-step explanation:
what is 3/7 as decimal
Answer:
0.428571429
Step-by-step explanation:
the question is: The endpoints of ST are S(2,-2) and T(4,2) what are the coordinates of midpoint of ST?
Answer:
(3,0)
Step-by-step explanation:
If you use a graphing calculator and connect the two points then you would get (3,0) :))
Which statement(s) about the line
below are true? Select all that apply.
A The x-intercept is -8.
B The line has a positive slope.
C The y-intercept is 4.
D The line has a negative slope.
Answer: A, B, and C.
Step-by-step explanation: The answers you have selected in the picture are correct.
These are the actual claims made regarding the line:
The x-intercept is at - 8 because y = 0 when x = -8.
The line is growing and has a positive slope.
As soon as x = 0 and y = 4, the y-intercept is at 4.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
The true statements about the line are,
The x-intercept is at - 8, as when x = - 8 y = 0.
The line has a positive slope as it is increasing.
The y-intercept is at 4 as when x = 0 y = 4.
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A cell phone costs $750 and loses 28% of its value each year. Write an exponential decay function to represent this situation.
1. f(x)= 750 • 0.72^x
2. f(x)= 0.72 • 750^x
3. f(x)= 750 • 0.28^x
4. f(x)= 0.28 • 750^x
Answer:
1. [tex]f(x) = 750\cdot 0.72^{x}[/tex]
Step-by-step explanation:
The cell phone experiments an exponential depreciation, which is defined by the following formula:
[tex]f(x) = C_{o}\cdot (1-r)^{x}[/tex], for [tex]0<r< 1[/tex]. (1)
Where:
[tex]C_{o}[/tex] - Initial cost, measured in monetary units.
[tex]r[/tex] - Depreciation rate, no unit.
[tex]x[/tex] - Time, measured in years.
[tex]f(x)[/tex] - Current value of the cell phone, measured in monetary units.
If we know that [tex]C_{o} = \$\,750[/tex] and [tex]r = 0.28[/tex], then the exponential decay function that represents the situation is:
[tex]f(x) = 750\cdot 0.72^{x}[/tex]
Which means that correct answer is 1.
Select the three inequalities that have n = 3 in the solution set
A. n + 5 < 9
B. 13 n < 1
C. 3n + 1 >7
D. 3n > 9.5
E. n-2<5
Answer:
Its just E
I'm sorry if I'm wrong
Answer: A, C, E
Solve for all the inequalitites.
n + 5 < 9
n < 9 - 5
n < 4
∴ n = 3 is a part of the solution set.
13n < 1
n < 1/13
∴ This definitely doesn't include n = 3.
3n + 1 > 7
3n > 6
n > 2
∴ n = 3 is part of the solution because n is larger than 2.
3n > 9.5
n > 9.5 ÷ 3
n > 3.16666666
∴ n = 3 is not part of the solution set.
n - 2 < 5
n < 5 + 2
n < 7
∴ n = 3 is a part of the solution set.
What is the value of x
Answer:
x=12the opposite side of parallelogram are equal
Answer:
8
Step-by-step explanation:
Since, intercepts made by parallel lines on transversals are in proportion.
Therefore,
[tex] \frac{x}{24} = \frac{12}{36} \\ \\ \frac{x}{24} = \frac{1}{3} \\ \\ x = \frac{24}{3} \\ \\ x = 8[/tex]
In class 10 out of 25 students ride the bus.what percent of students ride the bus?
Answer:
40%
Step-by-step explanation:
it's easiest to get a percentage from 100, multiplying 25 by 4 gives you 100 so if you do that then multiply 10 by four to make the equation even that will give you the answer
Help me please I am a idiot who doesn’t get math
To calculate the cuboid's volume, use height×width×length which is 11×11×16
For the cylinder's volume, use πr²h. in this case, it is 3.14×4²×9
Add up the two answers you get and that's the solution
Steve studies math for 7/8 of an hour and history for 2/3 of an hour. How many hours did he study?
Answer:
The answer is 1 13/24 hours or 1 hour, 32.5 minutes
Step-by-step explanation:
Find a common multiple of the denominators 3 and 8, which would be 24. Convert the fractions:
7/8 x 3/3 = 21/24.
2/3 x 8/8 = 16/24
Add the two numerators = 37/24 or 1 13/24.
1/24 of an hour is 2.5 minutes, so 13/24 is 32.5 minutes.
The answer is 1 13/24 hours or 1 hour, 32.5 minutes
Place the numbers 4/3 , 1/2 , 4/8 , 3/2 and 2/2 in order from least to greatest.
Answer:
1/2, 4/8, 2/2, 4/3, 3/2
Step-by-step explanation:
If you put the fractions into decimals it would easier to see which ones are greater and leasts.
4/3 = 1.333...
1/2 = 0.5
4/8 = 2/4 = 1/2 = 0.5
3/2 = 1.5
2/2 = 1
Am not sure if 1/2 go first or 4/8.
What is the solution of the system of equations? Enter the solution as an ordered pair (use decimal rounded to the nearest hundredth if necessary)
=32+54−2+8=−25
Part A
In "The Case for Shelter Animals," what does the author explain about the cost of becoming a pet owner?
Adoption costs more money than buying a pet.
Pet stores are more expensive than breeders.
It is more expensive to buy a pet than it is to adopt.
Cats are less expensive than dogs.
Question 2
Part B
Which evidence from the text best supports the answer to Part A?
"So those who buy from pet stores and breeders can expect to pay those fees on top of already-high purchase costs."
"The guide states that adopting a dog or a cat from a shelter usually costs between $50 and $500."
"Meanwhile, an animal from a pet store typically costs at least $1,000. Breeders are even more expensive."
"One reason that adopting pets from shelters is the logical choice is that shelter animals are less expensive than those bought from pet stores or breeders."
Answer:
part a, c part b, d
Step-by-step explanation: i just took the test for k12
Statement 1 is incorrect.
Statement 2 is incorrect.
Statement 3 is correct.
Statement 4 is incorrect.
What is the adoption cost?Adoption cost in the given problem is the money spent in maintenance, feeding, and other expenses in order to adopt a pet.
"Adoption costs more money than buying a pet" is an incorrect statement because if we extract the conclusion combinedly from statements 2 and 3, it is clear that adoption cost is in the range of $50 and $500 in the case of a shelter animal while an animal from a pet store typically costs at least $1,000.
"Pet stores are more expensive than breeders", this is an incorrect statement because in the third paragraph it is mentioned that "an animal from a pet store typically costs at least $1,000. Breeders are even more expensive."
"It is more expensive to buy a pet than it is to adopt" is a correct statement because in the fourth paragraph it is mentioned that "adopting pets from shelters is the logical choice because shelter animals are less expensive than those bought from pet stores or breeders."
"Cats are more expensive than dogs" is an incorrect statement because in the second paragraph it s mentioned, "adopting a dog or a cat from a shelter usually costs between $50 and $500." There has not been discussed anything about the individual adoption costs for each.
Therefore, Statement 1 is incorrect.
Statement 2 is incorrect.
Statement 3 is correct.
Statement 4 is incorrect.
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Which shows the numbers ordered from least to greatest? 9.129, 9.37, 9.3, 9.219
Answer:
9.129 then , 9.219 then , 9.3 then , 9.37
Step-by-step explanation:
answer?answer?answer?answer?answer?answer?answer?
Answer:
y=6/2x-6
y=3x-6
Step-by-step explanation:
The figure shows two lines cut by transversal.wich statement correctly explains why the two lines are parallel
Answer:
D
Step-by-step explanation:
This is because the angle are corresponding which mean they are on the same side and are the same number
Hope this Helped
Complete the sentence.
Answer:
50 more
Step-by-step explanation:
Answer:
50 more than............
help me plz !!!!!!!!!!
Step-by-step explanation:
Since y = x + 3
Substitute the value of y for each one into the equation
1. y = 4
4 = x + 3
4 - 3 = x
x = 1
2. y = 8
8 = x + 3
8 - 3 = x
x = 5
3. y = 5
5 = x + 3
5 - 3 = x
x = 5
Hope you got it
which of the given values will make the inequality n-93>175 true?
n=82
n=105
n=268
n=300
n=312
Answer:
n = 300 and n = 312
Step-by-step explanation:
n - 93 > 175
n > 175 + 93
n > 268
Therefore only the two last answers are are possible n values (n has to be more than 268, not equal)
The two numbers 300 and 312 will make the inequality n-93>175 true which are correct option (D)300 and (E)312.
What is inequality?Inequality is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is not equal.
Given inequality as:
n - 93 > 175
n > 175 + 93
n > 268
Therefore, n must be greater than 268 and not equal.
Hence, the two numbers 300 and 312 will make the inequality n-93>175 true.
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h(x)=2x-4
g(x) = x² - 2
Find (h•g)(x)
Answer:
2x² - 8
Step-by-step explanation:
the sum of the three terms consecutive terms of an ap is -6 and the product is 64, find the terms. using a, a + d, a + 2d
Answer:
-8, -2 and 4
Step-by-step explanation:
Let the terms of the AP be a-d, a and a+d
If the sum is 6, then;
a-d+a+a+d = -6
3a = -6
a = -6/3
a = -2
Hence the first term is 6
If the product is 64
(a-d)(a)(a+d) = 64
-2(a²-d²) = 64
-2(4-d²) = 64
4-d² = -64/2
4-d² = -32
-d² = -32-4
-d² = -36
d² = 36
d = 6 or -6
The first term is a-d = -2-6 = -8
second term is a = -2
third term is a+d = -2+6 = 4
Hence the required AP is -8, -2 and 4
math help me pls now now
Answer:
14/1
Step-by-step explanation:
16/3 –5/4
(16*4–5*3)/12
49/12
1 4/1
Answer: 4 1/12
Step-by-step explanation:
Hope this helps!
help i dont understand how to do this the question is "Put your answer in decimal form."
Answer:
x = 2.5
Step-by-step explanation:
Hypotenuse ² = opposite ² + adjacent ²
(x + 4)² = x² + 6²
x² + 8x + 16 = x ² + 6²
x² + 8x + 16 - x² = 6²
8x + 16 = 36
8x = 36 - 16
8x = 20
x = 20/8
x = 2.5
PLEASE HELPP!!!!
ive been stuck on this for 3 days i feel clueless
Answer:
C.
Step-by-step explanation:
I think im right!
Hopefully it helps!
Answer:
the answer is letter C I'm sure
Model the unknown number problem by writing an
algebraic expression. Then complete the statements.
Juan doubled his workout time.
Replace the words 'workout time" with.
The word "doubled" means
The correct algebraic expression is
Answer:
Model the unknown number problem by writing an algebraic expression. Then complete the statements.
Juan doubled his workout time.
Replace the words “workout time” with.
✔ the variable w
.
The word “doubled” means
✔ multiplied by 2
.
The correct algebraic expression is
✔ 2w
.
Step-by-step explanation:
Answer:
Model the unknown number problem by writing an algebraic expression. Then complete the statements.
Juan doubled his workout time.
Replace the words “workout time” with.
✔ the variable w
The word “doubled” means
✔ multiplied by 2
The correct algebraic expression is
✔ 2w
Step-by-step explanation:
Write each ratio in three different ways based on the table. Party Mix Makes 8 Cups 3 cups pretzels 3 cups bagel chips 1 cup cheese crackers 1 cup peanuts
what kind of number is e?
a.) integer
b.) rational
c.) natural
d.) irrational
Answer:
c.natural
Step-by-step explanation:
The number e , sometimes called the natural number, or Euler's number, is an important mathematical constant approximately equal to 2.71828.
A lumberjack needs to climb a tree to place a satellite tower in the tree top in the woods. The satellite signal needs to reach a horizontal distance of 3500 meters along the ground. If the angle of elevation from the farthest distance along the ground that the satellite reaches to the satellite in the tree is 18 degrees, what is the radius of the satellite signal? Round your answer to the nearest meter.
Radius of the satellite signal = meters
Answer: I use clickcaculators.com ;)
Step-by-step explanation:
Solve the system of linear equations by elimination x + 2y = 13 --x+y=5
Answer:
{x,y} = {1,6} Have a great day
Answer: welp its already answred
Step-by-step explanation:
The Milgram Family drove 440 miles on 20 gallons of gas. At this rate, how many miles can they drive on 25 gallons of gas? *
Answer:550
Step-by-step explanation: first you need to find the unit rate ( or how many miles per gallon) by dividing 440 by 20 which would get 22, then you would take that and multiply it by 25 to get 550. Hope this helps!
A scale model of a house is 1/10 the size of the actual house. One of the bedrooms in the house is 16 feet long. Which expression will help you find the length of the same bedroom in the model?
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