Answer:
A. 4 + 3 + 6
Step-by-step explanation:
The commutative property of addition is changing the order of addends in a way that won't change the sum. The original problem was 3 + 4 + 6, so all you have to do was flip some of the numbers with each other.
Part A: Explain why the x-coordinates of the points where the graphs of the equations y = ^2−x and y = ^4x + 3 intersect are the solutions of the equation 2^−x = 4^x + 3.
Part B: Make tables to find the solution to 2^−x = 4^x + 3. Take the integer values of x only between −3 and 3.
Part C: How can you solve the equation 2^−x = 4^x + 3 graphically?
Answer:
Post a photo
Step-by-step explanation:
Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the graph of the given equation. (0,2); y=-5x + 8
Answer:
y=-5x+2
Step-by-step explanation:
its that because if the lines are parallel then they have the same slope. and it alr gives you the y intercept so just put it together
What is the equation of the line through (2,3) and (0,-1)\
WILL GIVE BRAINLIEST
Answer:
y=2x−1
Explanation:
First, we need to determine the slope of the line. The formula for determining the slope of a line is:
m=y2−y1x2−x1
where m is the slope and the x and y terms are for the points:
(x1,y1) and (x2,y2)
For this problem the slope is:
m=3−−12−0
m=3+12m=42m=2
Now, selecting one of the points we can use the point slope formula to find the equation.
The point slope formula is:
y−y 1=m(x−x1)
Substituting one of our points gives:
y−1=2(x−0)y+1=2x
Solving for y
to put this in standard form gives:
y+1−1=2x−1
y+0=2x−1
y=2x−1
Use Properties to evaluate 3/5(-20÷1/3)(2/3)
A. 12
B. 24
C. -12
D.-24
Answer:
D.-24
Step-by-step explanation:
Lin’s family has completed 80% of a trip. They have traveled 40 miles. How far is the trip? *
Answer:
50 miles i believe
Step-by-step explanation:
Answer:
50 miles
Step-by-step explanation:
PLZ ANSWER IF U KNOW THE ANSWER!
SHOW YOUR WORK!
Which of the following transformations would show that ∆DEF is congruent to ∆JKL?
A). ROTATION
B). A REFLECION IN THE Y-AXIS
C). A REFLECTION IN THE X-AXIS
D). A ROTATION ABOUT THE ORGIN
Need help please!!!!!
Answer:
0 or 5/12
Step-by-step explanation:
with everything subtracted its 0 but with only subtracting 1/6 its 5/12
hElp Me PLaesssssssssssssssssssssssssssss
— 2х + Зу = 6
solve for y
Answer:
y = 2/3x+3
Step-by-step explanation:
-2x+3y=6
you add 2x to the other side 3y=2x+6
and divide by 3
y = 2/3x+2
Who knows how to do this I TRULY NEED HELP
How many terms are in the expression below?
-4x + 7 + 2x + 10
Answer:
3
Step-by-step explanation:
Mary, Amy, and Kim babysit. Last week, Kim earned 7.50 dollars more than Mary, and Amy earned twice as much as Kim. If Mary earned 12.80 dollars, how much did Amy and Kim earn
Answer:
Kim earned $20.30 and Amy earned $40.60
Step-by-step explanation:
Im just built different
Answer: Kim has 20.30 Amy has 40.60
Step-by-step explanation:
HEB sells mangos for $2.50 each. Costco Sells them for $1.75 each but has a
membership fee of $50. How many mangos would you need to buy to have the 2 costs
equal each other?
Answer:
$20.833
Step-by-step explanation:
HEB:
Total cost = 2.50m
Costco:
Total cost = 50 + 1.75m
Where,
m = number of mangoes
HEB = Costco
2.50m = 50 + 1.75m
2.50m - 1.75m = 50
O.75m = 50
m = 50 / 0.75
= $20.833
What is the value of 0.6 + 0.3? Write your answer as a fraction in lowest terms. 0.6 is repeated.
Answer:
9/10 0.9.............
Answer:
1
Step-by-step explanation:
0.666...+0.3=0.999...
1
i'm not sure what's the answer?
:)
i believe the answer is B.
At Parkview Middle School, 6th grade students were given a survey about their favorite flavor of ice
cream. The results showed that 18 students stated that strawberry was their favorite ice cream
flavor. This number represented 12% of the total number of 6th grade students who took the survey.
What was the total number of 6th grade students who took the survey?
Answer:
5
Step-by-step explanation:
i think
A runner times herself to see how long it takes her to run different distances. The table shows the runner's times (in minutes) for running several distances (in miles). Miles 1 2 3 4 6 8 10 12 Time 7 16 30 35 57 75 106 132 What is the correlation coefficient of the set of data? Round your answer to the nearest thousandth. A. 0.599 B. 0.996 C. 0.021 D. negative 0 point 997
Asap! Thanks!
Answer:
its b
Step-by-step explanation:
The correlation coefficient of the set of data is 0.9957.
What is coefficient correlation? What is the general equation of a Straight line?Correlation coefficient measures the strength and direction of the relationship between two variables. Following is the formula to calculate the correlation coefficient -
[tex]$r =\frac{\sum\left(x_{i}-\bar{x}\right)\left(y_{i}-\bar{y}\right)}{\sqrt{\sum\left(x_{i}-\bar{x}\right)^{2} \sum\left(y_{i}-\bar{y}\right)^{2}}}[/tex]
r → correlation coefficient.
[tex]$x_{i}[/tex] → values of the x-variable in a sample.
[tex]$\bar{x}[/tex] → mean of the values of the x-variable.
[tex]$y_{i}[/tex] → values of the y-variable in a sample.
[tex]$\bar{y}[/tex] → mean of the values of the y-variable.
The general equation of a straight line is -
y = mx + c
Other possible equations of lines are -
(y - y₁) = m(x - x₁) {Point - slope form}(y - y₁) = (y₂ - y₁) × (x - x₁)/(x₂ - x₁) {Two point - slope form}x/a + y/b = 1 {intercept form}x cos(β) + y sin(β) = L {Normal form}We have a runner times herself to see how long it takes her to run different distances. The table shows the runner's times (in minutes) for running several distances (in miles) -
Miles -
1 2 3 4 6 8 10 12
Time -
7 16 30 35 57 75 106 132
The calculations are given below -
[X - Mₓ]
- 4.750
- 3.750
- 2.750
- 1.750
0.250
2.250
4.250
6.250
Mₓ = 5.750
[Y - My]
- 50.250
- 41.250
- 27.250
- 22.250
- 0.250
17.750
48.750
74.750
My = 57.250
[X - Mₓ]²
22.562
14.062
7.562
3.062
0.062
5.062
18.062
39.062
Sum = 109.500
[Y - My]²
2525.062
1701.562
742.562
495.062
0.062
315.062
2376.562
5587.562
Sum = 13743.500
(X - Mₓ)(Y - My)
238.688
154.688
74.938
38.938
- 0.062
39.938
207.188
467.188
Sum = 1221.500
Finding [X] - Values -
∑ = 46Mean = 5.75∑(X - Mₓ)² = SSₓ = 109.5Finding [Y] - Values -
∑ = 458Mean = 57.25∑(Y - My)² = SSy = 13743.5[X] and [Y] Combined
N = 8∑(X - Mx)(Y - My) = 1221.5R Calculation
r = ∑((X - My)(Y - Mₓ)) / √((SSₓ)(SSy))
r = 1221.5 / √((109.5)(13743.5)) = 0.9957
r = 0.9957
Therefore, the correlation coefficient of the set of data is 0.9957.
To solve more questions on correlation coefficient, visit the link below-
https://brainly.com/question/27226153
#SPJ2
The distance on a map between North Carolina and Louisiana is 4 inches. If the map’s scale is 1 inch = 237 miles, what is the actual distance between North Carolina and Louisiana?
Answer:
Answer is 948 miles.
Step-by-step explanation:
distance in inches is 4 inches on map
1 inch = 237 miles
4*237=948
948 is the actual distance between north Carolina and Louisiana
Help me please...i will give brainly
Answer:33
Step-by-step explanation:
82 1/2% = 82.5% or 0.825
now just multiply 0.285 with 40 to get 33
Answer:
33 or 32.8 if you want to get technical
Step-by-step explanation:
A student wrote and simplified an expression for the perimeter of the rectangle. (Using the picture provided.)
perimeter.
Explain the mistake that was made in the simplified expression. Include the correct simplified expression in your explanation. Be sure to use math vocabulary words.
Answer:
Again...
Step-by-step explanation:
What is -2-(-7)
Plsss explain
Answer:
14 I think I'm. it completely sure
Answer:
5
Step-by-step explanation:
you keep the sign of the first number
change the minus sign to addition
and the 7 to a positive
-2 +7
is the same as 7 - 2 if you switch the term
Order the following set of numbers from least to greatest.
3/4, 0.72, 69%, 0.63
Answer:
qwhich one do we answer, 1, 2?????????
Step-by-step explanation:
what is 0.716 divided by 5?
I'LL MARK AS BRAINIEST !!! please hurry !!!
Which expression is equivalent to cos 16°?
A. sin 164°
C. sin 84°
B. sin 16°
D. sin 74°
Answer: my answer for dat will be sin 16 degrees
Step-by-step explanation:
Which situation can the integer -71 represent?
Choose the correct answer below.
A) a bird flies 71 ft above sea level
B) you climb a mountain 71 ft above sea level
C) a fish swms 71 ft below sea level
what is a simplified fractional eqeuvilent of a teminating decimal .68
Answer:
17/25
Step-by-step explanation:
0.68 is read as "sixty-eight hundredths."
Write sixty-eight hundredths as a fraction: 68/100
Now we reduce 68/100.
68/100 = 34/50 = 17/25
Answer:
17 /25
Step-by-step explanation:
0.68
is the same as
6
10
+
8
100
=
68
100
68
÷
4
100
÷
4
=
17
25
As 17 is a prime number we stop at this point. srry if this in not correct
If y=32 when x=8, find y when x=30.
help me with this please ?
Answer:
6 Weeks
Step-by-step explanation:
20 + 10x = 50 + 5x
10x = 30 + 5x
5x = 30
x = 6
Answer:
6 weeks
Step-by-step explanation:
You can create linear equations to model this.
Science Club:
y = 10x + 20
Math Club:
y = 5x + 50
These can be solved using substitution:
5x + 50 = 10x + 20
-5x -5x
--------------------------
50 = 5x + 20
-20 -20
----------------------------
30 = 5x
/5 /5
------------
6 = X
Plug into one of the original equations:
y = 10x + 20
y = 10(6) + 20
y = 80
The point at which they intersect is: (6, 80)
Since X represents the number of weeks, it would be 6 weeks before they have the same balance.
A jewelry artist is selling necklaces at an art fair. It costs $135 to rent a booth at the fair. The cost of materials for each necklace is $4.50. The artist is selling the necklaces at $12 each. The inequality LaTeX: 12n > 135 + 4.50n12 n > 135 + 4.50 n represents the situation in which the artist makes a profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.
Answer:
The artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).
Step-by-step explanation:
Note: The question contains some error. The question is therefore rewritten before is answered as follows:
A jewelry artist is selling necklace at an art fair. It costs $135 to rent a booth at the fair. The cost of material for each necklace is $4.50. The artist is selling the necklace at $12 each. The inequality 12n>135+4.50 represents the situation in which the art is making the profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.
The explanation of the answer is therefore given as follows:
Given;
12n > 135 + 4.50 .................... (1)
Where n represents the number of necklace that must be sold by the artist to make a profit.
Solving for n from equation, we have:
12n > 139.50
n > 139.50 / 12
n > 11.625 ..................... (2)
Equation (2) implies that more than 11.625 necklaces must be sold by the artist to make a profit.
When the artist sells 15 necklaces, it implies that n = 15.
Since more than 11.625 necklaces must be sold by the artist to make a profit, it therefore implies that the artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).
What is the slope of the line that passes through the points M(-3,5) and N (1,8)
Answer:
m=[tex]\frac{3}{4}[/tex]
Step-by-step explanation: