Answer:
slope = [tex]\frac{12}{7}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 7, - 8) and (x₂, y₂ ) = (0, 4)
m = [tex]\frac{4+8}{0+7}[/tex] = [tex]\frac{12}{7}[/tex]
Draw a diagram to represent each of these situations. Then write an addition expression that represents the final temperature.
The temperature was 80 ℉ in Arizona and then fell 20 ℉ during the night.
The temperature was -13 ℉ in Minneapolis and then rose 9 ℉ in the morning.
The temperature was -5 ℉ in Denver and then fell 8 ℉ by the morning.
Answer:
1) 80+(-20)
2) -13+9
3) -5+(8)
I don't quite know how to explain
Just think about 1) 60 is the new temperature, in order to have an addition problem we're going to have to use negative numbers. Since we had to subtract 20, in order to use addition it would be 80+(-20).
Leo saves $43 a month for a new iPhone. About how much will he save during one year? (Estimate)
504-288
whats the answer pls?
Answer:
216 is the answer :) uwu
2. Which example does NOT show the
commutative property of addition?
A. 4 + x = x + 4
B. ab = ba
C. a+b = b + a
D. 3x + 4y = 4y + 3x
Answer:
The answer is A....im pretty sure
Step-by-step explanation:
Answer:
I think it would be b.ab=ba but I'm, not 100% sure
Step-by-step explanation:
Carrie and Alex are playing hide and seek Alex stands at the house to count Carrie runs 25 m west and finds nowhere to hide. She Continues 60 m north to the tree
Answer:
65mStep-by-step explanation:
Since we are not asked what to find, we can as well calculate the displacement of Carrie.
Displacement will be gotten using Pythagoras theorem;
Given
direction through west x = -25m
direction through north y = 60m
Required
Displacement d
According to the theorem;
d² = x²+y²
d² = (-25)²+(60)²
d² = 625 + 3600
d² = 4225
d = √4225
d = 65 m
Hence the displacement of Carrie is 65m
Please helpppp!!! I think it's easy but I dont understand
what is y=-4/3x-4 in standard form
Answer:
4x + 3y = - 12
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
Given
y = - [tex]\frac{4}{3}[/tex] x - 4 ( multiply through by 3 to clear the fraction )
3y = - 4x - 12 ( add 4x to both sides )
4x + 3y = - 12 ← in standard form
To prove a conjecture is true, you must prove it true for all cases. It only takes ONE false example to show that a conjecture is NOT true. This false example is a COUNTEREXAMPLE. Find a counterexample to show that each conjecture is false?
Answer:
the answer should be conjecture sum hehehe
Step-by-step explanation:
this is a veryyyy hard questionnnnnnn
Please help me I don’t understand
Answer:
-8 I believe
Step-by-step explanation:
Ajar contains 5 purple, 6 yellow, 8 green, and
5 orange jelly beans. What is the probability
of selecting a yellow jelly bean followed by a
purple one, without replacement?
Answer:
5 out of 24 percent chance
Step-by-step explanation:
often considered the slope, this is the comparison of two different quantities that are changing
Answer:
I believe that would be the rate..
Step-by-step explanation:
Which term best describes the graph of y = x – 1?
Answer:what ww said
Step-by-step explanation:
Answer:
Increasing
Step-by-step explanation:
Because im smart lol
A seamstress needs to cut 15 pieces of ribbon
A7
B35
C135
D8100
Ed's new car has a value of $23,500, but it is expected to depreciate at a rate of 7.5% per year. What is the value of Ed's car after 7 years? Round to the nearest dollar, as needed.
$0
$142,162
$13,616
$14,720
Answer:
$13,616
Step-by-step explanation:
For each year we will have to constantly decrease it by 7.5%
23,500 - 7.5%
= 21,737.5
= 21,737.5 - 7.5%
= 20,107.1875
= 20,107.1875 - 7.5%
= 18599.1484375
= 18599.1484375 - 7.5%
= 17204.2123047
= 17204.2123047 - 7.5%
= 15913.8963818
= 15913.8963818 - 7.5%
= 14720.3541532
= 14720.3541532 - 7.5%
= 13616.3275917
Definitively we will get the answer $13,616
Need some help with this, 2 answer problem! Please help
Answer:
Part 1. Use x = 1.
Part 2. Use x = 0
Step-by-step explanation:
If x = 1, you have
[tex]\frac{9^1}{5^1} = \frac{9}{5}\\[/tex] , which is greater than 1.
If x = 0, you have
[tex]\frac{9^0}{5^0} = \frac{1}{1} = 1[/tex], which is NOT greater than 1.
8. Madison can complete two skirts in 15 days. How long will it take her to
complete eight skirts?
Answer:
60 days
Step-by-step explanation:
2:15
x4 x4
8:60
3. Marta can buy a 6-pack of 15-ounce cans of broth for $11.29 or three
32-ounce containers for $10.97. Which is the better buy? (Example 1)
Answer:
the second one
Step-by-step explanation:
if you were to divide the price by ounces the first one would be .1254444444444444 per ounce while the second one would be .1142708333333333 per ounce so the second one is better.
2. Suppose that 1% of the women in a certain population have breast cancer and that each of
these women undergoes a mammogram to test for breast cancer. According to one study, the
probability that a woman without breast cancer gets a positive test result is 0.121. The
probability that a woman with breast cancer gets a negative result is 0.0015. Select one woman
from this population at random.
(a) Express the provided information using probability notation.
(b) Display the provided information using a tree diagram. Then calculate the probabilities of
each of the four possible outcomes.
(c) Calculate the probability that a randomly selected woman from this population tests
positive.
(d) Given that the test result is positive, what is the probability that the woman actually has
breast cancer?
in greek myth Icarus's story is a story about...
envy
lies
greed
pride
Answer: Look at the key words in his story!
Step-by-step explanation: For Envy look for words like: Jealousy , Hate , etc
Greed: MORE, not that, etc
Pride: More positive words
Lies: Words that show he is lying
Answer:
Pride
Step-by-step explanation:
The reason I chose this answer was because I felt like he took so much pride in his father's work that he thought there would be no flaw and that he could do anything with the wings.
At the local college, a study found that students earned an average of 14 credit hours per semester. A sample of 138 students was taken. What is the best point estimate for the average number of credit hours per semester for all students at the local college?
Answer:
1932 credit hours
Step-by-step explanation:
Create a proportion
credits credits
---------- = ----------
students students
14 ?
---- = -----
1 138
14 times 138
1932 credit hours
Select the correct answer from each drop-down menu.
Use the remainder theorem to verify this statement.
(x+5) is a factor of the function f(x) = x^3 + 3x^2 - 25x - 75
1. Find the (product, quotient, difference, sum) of f(x) and x + 5
2. The (quotient, remainder, sum, discriminant) of this operation is 0
3. Therefore, (x+5) is (not a factor, the opposite, a factor, the simplified form) of function f
4. So f ([-75, 5, -5, 75)] = 0
1. quotient
2.remainder
3. a factor
4. 5
Step-by-step explanation:
i just took the test
The expression (x + 5) is a factor of given function f(x).
So the remainder of the function will be zero.
Remainder theorem:The given function is,
[tex]f(x) = x^3 + 3x^2 - 25x - 75[/tex]
We have to check (x + 5) is a factor of the given function.
Equate (x + 5) is equal to 0.
x + 5 = 0
x = -5
Substitute x = -5 in given equation.
[tex]f(-5)=(-5)^3+3(-5)^2-25(-5)-75\\\\f(-5)=-125+75+125-75\\\\f(-5)=0[/tex]
Since f(-5) = 0. Therefore, (x + 5) is a factor of given function f(x).
Learn more about the remainder theorem here:
https://brainly.com/question/13328536
Identify the interval(s) on which the function y = -x2 + 5x + 14 is positive.
A.) X < -2 and x > 7
B.) X > 2 and x < -7
C.) -7 < x < 2
D.) -2 < x < 7
Given:
[tex]y=-x^2+5x+14[/tex]
To find:
The interval on which the given function is positive.
Solution:
We have,
[tex]y=-x^2+5x+14[/tex]
Splitting the middle term, we get
[tex]y=-x^2+7x-2x+14[/tex]
[tex]y=-x(x-7)-2(x-7)[/tex]
[tex]y=(x-7)(-x-2)[/tex]
[tex]y=-(x-7)(x+2)[/tex]
Using zero product property, we get
[tex]x-7=0\text{ and }x+2=0[/tex]
[tex]x=7\text{ and }x=-2[/tex]
-2 and 7 divide the number line is three interval.
Interval Signs of [tex]y=-(x-7)(x+2)[/tex] Result
(-∞,-2) (-)(-)(-) Negative
(-2,7) (-)(-)(+) Positive
(7,∞) (-)(+)(+) Negative
So, the function is positive for the interval (-2,7), i.e., -2 < x < 7.
Therefore, the correct option is D.
h(x) = 3x-4 what is h(6)
Answer:
14
Step-by-step explanation:
3*6=18
18-4=14
Answer:
14
Step-by-step explanation:
I got it right on the test
What is the rate of change of the graph below?
5
4
-
2
4
5
х
4/3
-1
ОООО
3/4
1
Answer:
c
ccccccccccccccccccccccccccccccccccccccccccccccccc
Water flows down the Mississippi river at about 1.2 miles per hour. The relationship between hours and miles the water has traveled is... Discrete or continuous
Answer:
Continuous
Step-by-step explanation:
Given
[tex]Rate = 1.2\ miles/hour[/tex]
Required
Determine if this relationship is discrete or continuous
Numbers in their whole form (i.e. 1,2,3.....) represent discrete values while others with decimals (such as 0.2,0.9, 1.2...) represent continuous values
From the above analysis, we can see that 1.2 fall in the category of continuous values.
Hence, the relationship between both parameters is continuous
A new health drink has 160% of the recommended daily allowance (RDA) for a certain vitamin. The RDA for this vitamin is 50 MG. How many milligrams of the vitamins are in the drink? Please help me I need help fast!
Answer:
5
Step-by-step explanation:
5+5+5-10
Answer:80
Step-by-step explanation:
That’s just what it corrected me as, but it’s right
3х + 8 + 10cjdidjdjdhdjdj
Answer:
3x+18
Step-by-step explanation:
Answer:
3 ( x + 6)
Step-by-step explanation:
3x + 8 + 10
add numbers together
3x + 18
factor out the 3 from the expression
3 (x + 6)
not sure about all the letters ? but hope this helps nn
Calculate the area of a circle with the radius of 2cm. Pie=3
Answer:
12
Step-by-step explanation:
The formula to find the area of a circle is:
[tex]\pi[/tex][tex]r^{2}[/tex]
Where "r" is the radius of the circle.
In this case, the radius is 2, and as per what is given in this problem (what the problem asks one to use), pi is rounded down to 3.
The equation will be:
3 * 2^2
Simplify, remember the order of operations:
3 * 4
12
Answer:
12.56 cm
Step-by-step explanation:
Area of a circle is A=3.14 r to the second power.
so the radius is 2 cm. I would do 2 x 2 and that equals ,4 next 4 x 3.14= 12.56
i don't know what pie=3 means but this is my answer from the best of my ability.
6 7/12 - 5 2/3 I need help on this Math Promblem
Answer:
11/12
Step-by-step explanation:
6 7/12 - 5 2/3
=(6-5) + (7/12 - 2/3)
= 1 + 7/12 - 2*4 / 3*4
= 1 + 7/12 - 8/12
= 1 + 7-8 / 12
= 1 + -1/12
=11/12
Answer:
Step-by-step explanation:
at a basketball game at team made 58 successful shots they were a combination of one and two point shots the team scored 98 points in all right and solve a system of equations to find out the number of each type of shot
Answer:
There were 18 1 point goals and 40 2 point goals
Step-by-step explanation:
Let the number of one point shots be x and the number of two point shots be y
Total number of shot is 58
x + y = 58 ••••(i)
Then;
Total of 1 point is 1 * x = x
Total of 2 points is 2 * y = 2y
x + 2y = 98 ••••••(ii)
x = 98-2y
Put this in 1
98-2y + y = 58
-y = 58-98
y = 40
x = 58-40
x = 18