Answers
Answer: D. 2
Step-by-step explanation:
Given
y-1=2(x--2)
Change signs
y-1=2(x+2)
Expand parenthesis
y-1=2x+4
Add 1 on both sides to isolate "y"
y-1+1=2x+4+1
y=2x+4
So the slope is 2
Hope this helps!! :)
Please let me know if you have any questions
Related Questions
Number 12 please help 10 points no links pleAse
Answers
Answer:
C
Step-by-step explanation:
50
52
53
56
We have the 5 at the stem, so we need 0, 2, 3, and 6 at the leaf.
What is the End Behavior of the following Graph?
Answers
Answer:
b hopefully this helps you with work
HELP plesse with 9 and 10
Answers
Answer:
Find the solutions below
Step-by-step explanation:
Given the equation
y = -x^2 + 2x + 7
y = -2x+2
Equating both expressions
-x^2 + 2x + 7 = -2x + 2
-x^2 + 2x + 7 + 2x - 2 = 0
-x^2 + 4x + 5 = 0
Multiply through by -1
x^2 - 4x - 5 = 0
Factorize
x^2 - 5x + x - 5 = 0
x(x-5)+1(x-5) = 0
(x+1)(x-5) = 0
x+1 = 0 and x - 5 = 0
x = -1 and 5
when x = -1
y = -2x+2
y = -2(-1)+2
y = 2+2
y = 4
when x = 5
y = -2(5)+2
y = -10+2
y = -8
Hence the solutions are (-1, 4) and (5, -8)
b) y = x^2-3x-27
y = x - 6
Equating both expressions
x^2-3x-27 = x - 6
x^2-3x-27 - x + 6 = 0
x^2-4x-21 = 0
x^2 - 7x + 3x - 21 = 0
x(x-7)+3(x-7) = 0
(x+3)(x-7) = 0
x = -3 and 7
when x = -3
y = -3-6
y = -9
when x = 7
y = 7 - 6
y = 1
Hence the required solutions are (-3, -9) and (7, 1)
13- (-9)
explain how you got this answer
16+ only please answer this
Answers
Answer:
22
Step-by-step explanation:
double negative is a plus sign
13--9=22
Answer: 22
Step-by-step explanation:
Here, we need to know the concept of changing signs. Under any circumstances, if there is a "-" sign outside of parenthesis, the signs inside need to be the opposite. If you are still not very clear, I can provide some examples below:
1-(+1) ⇒ there is a "-" sign, so we need to convert the sign inside "+" to "-" ⇒ 1-1 ⇒ 02-(-1) ⇒ there is a "-" sign, so we need to convert the sign inside "-" to "+" ⇒ 2+1 ⇒ 3-------------------------------------------------------
Given
13 - (-9)
⇒There is a "-" sign outside
⇒We need to convert the sign inside "-" to "+"
⇒13+9
⇒22
Hope this helps!! :)
Please let me know if you have any questions
Can someone please help me with math.
Answers
I think its answer B) B
A bag contains 20 marbles - 10 blue and 10 red. What is the probability of selecting 2 blue marbles at random with replacement? *
Answers
Answer:
I dot know how you want the answer but the are all correct 2/20 or 10% or 0.10
Step-by-step explanation:
Two lines intersecting at a right angle
o form a line.
O are parallel.
O are perpendicular.
o form a ray.
Save and Exit
Next
Submit
Mark this and retum
Answers
Answer: are perpendicular
Step-by-step explanation:
Two lines intersecting at a right angle are said to be perpendicular. When the lines cross each other, we say the lines have intersected.
The point of intersection of the lines is the pointe where they cross one another. In case the lines never interesct, such lines are refered to as the parallel lines.
Help please, thank you :)
Answers
Answer:
Equation B, 10 + 5.50n = y.
Step-by-step explanation:
N is the pounds of shrimp that were purchased. This has no set value, it can change at any time.
Since each pound of shrimp is $5.50, if you wanted to buy 10 pounds of fish you'd pay $55.
If I wanted to write an equation to find the total amount of money that I'd need to pay for n pounds of shrimp, I would use the equation 5.50n. (I don't know if this makes sense lol I'm terrible at explaining ;-;)
Now, it states that he wants an extra 10 dollars to pay for expenses. On top of the 5.50n, he wants an extra $10.
You need to add 10 to 5.50, in order to get the total amount, or y.
The final equation is going to be 5.50n + 10 = y, or choice B.
A cylindrical tank has a volume of 628 inches cubed. The height of the tank is 8 inches. What is the area of the base?
Answers
Answer: 78.5 in2
Step-by-step explanation:
Describe and correct the error in writing an equation of the line with a slope of 2 and a y-intercept of 7.
Please don't put any links or I will report you.
Answers
Answer:
The mistake they made was they switched the slope and y-intercept.
The correct answer is y=2x+7 because when we write an equation in slope intercept form (y=mx+b) you replace m with the slope and b with the y-intercept.
Hope this helps! <3
What are the x-coordinates of the solutions to this system of equations?
x2 + y² = 36
y = x - 6 (1 point)
Select one:
a. 2 and 0
b. 6 and 2
c. 6 and -2
d. 6 and 0
Answers
y=(x-6)
substitute y in first equation
x^2+(x-6)^2=36
x^2+x^2-12x+36=36
simplify and factor
2x(x-6)=0
so x=0, x=6
Which expression is equivalent to sin (1) cos(17) - cos (1) sin(15.)?
Answers
Answer:
os 36°: The cosine of 36 degrees can be calculated by using a pentagon. ... sin 18° and sin 72°: Taking the equivalent sine and cosine values of 15° and 18° on ... I angle (the "I" in this expression stands for th
Step-by-step explanation:
2x + x + 24=180 ????
Answers
3x + 24 = 180
3x = 180 - 24
3x = 156x = 156/3
x=52
what is the Circumference of
r = 126 cm
C =?
Answers
Answer:
C≈791.68
Step-by-step explanation:
C=2πr=2·π·126≈791.68135
Surgery Satisfaction Survey
Surgery Satisfied Dissatisfied Total
Knee 70 25 95
Hip 90
15 105
Total 160 40 200
The table shows survey results for 200 patients who had either hip or knee surgery. If one person is selected randomly, what is the
probability he or she was dissatisfied, given that he or she had hip surgery? (Round to the nearest tenth of a percent.)
A)
44.2%
B)
38.6%
0
21.7%
D)
14.3%
Answers
Answer: D) 14.3%
Step-by-step explanation:
Conditional probability formula:
[tex]P(B |\text{given that A}) =\dfrac{P(A\ and\ B)}{P(A)}[/tex]
So, The probability he or she was dissatisfied, given that he or she had hip surgery = [tex]\dfrac{\text{Number of persons are dissatisfied and has hip surgery}}{\text{Total persons have hip surgery}}[/tex]
From the table, the number of persons who are dissatisfied and has hip surgery = 15
Total persons have hip surgery = 105
Required probability = [tex]\dfrac{15}{105}\approx0.143[/tex]
In percent, Required probability = 14.3%
Correct option D) 14.3%
Which of the following characteristics does not describe a stock?
O A. No guarantee you will get your money back
B. No maturity date
C. Money can be earned from capital gains
O D. No certificate of ownership
Answers
Answer:
D. No certificate of ownership
4. A taxi ride costs $9.25. The driver charges a flat rate of
$2.25 just to enter the car. If each mile costs.50, how
many miles did you ride?
Answers
Answer: 14
Step-by-step explanation:
9.25-2.25 = 7/.5= 14
Which expression below has a Coefficient of 3?
Answers
A pair of dice is rolled and the numbers showing are observed. Find the probability that the two dice show different numbers.
Answers
Answer:
1/36
Step-by-step explanation:
SOLVE FOR THE BASE
1. 10% of ________-8
2.28 is 4% of _________
3.25% of ________
4.13% of______
5.15 is 12.5% of _____
Answers
Answer:
1- 10% of -80 is -8.
2- 28 is 4% of 700.
3- 25% of a number is equal to 1/4 or 0.25 of it.
4- 13% of a number is equal to 0.13 of it.
5- 15 is 12.5% of 120.
Step-by-step explanation:
1. 10% of ________- 8
2.28 is 4% of _________
3.25% of ________
4.13% of______
5.15 is 12.5% of _____
To determine the missing numbers in the statements, the following calculations must be performed:
1-
10 = -8
100 = X
100 x -8 / 10 = X
-800 / 10 = X
-80 = X
Therefore, 10% of -80 is -8.
two-
4 = 28
100 = X
100 x 28/4 = X
2800/4 = X
700 = X
Therefore, 28 is 4% of 700.
3-
25% of a number is equal to 1/4 or 0.25 of it.
4-
13% of a number is equal to 0.13 of it.
5-
12.5 = 15
100 = X
100 x 15 / 12.5 = X
1500 / 12.5 = X
120 = X
Therefore, 15 is 12.5% of 120.
the x and y axis are tangent to a circle with radius 3 units. write a standard equation of the circle.
Answers
Given:
The x and y axis are tangent to a circle with radius 3 units.
To find:
The standard form of the circle.
Solution:
It is given that the radius of the circle is 3 units and x and y axis are tangent to the circle.
We know that the radius of the circle are perpendicular to the tangent at the point of tangency.
It means center of the circle is 3 units from the y-axis and 3 units from the x-axis. So, the center of the circle is (3,3).
The standard form of a circle is:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
Where, (h,k) is the center of the circle and r is the radius of the circle.
Putting [tex]h=3,k=3,r=3[/tex], we get
[tex](x-3)^2+(y-3)^2=3^2[/tex]
[tex](x-3)^2+(y-3)^2=9[/tex]
Therefore, the standard form of the given circle is [tex](x-3)^2+(y-3)^2=9[/tex].
two swimmers swam lobstering practice together the swim 175 laps swmmier b swam 25 more than twice as many as swimmer a how many laps did swimmer a swim
Answers
Answer:
swimmer b swims 100 yards. approximately how many more feet did swimmer a swim than swimmer b? 2.
Step-by-step explanation:
the perimeter is ___ units
Answers
seven multiplied to the sum of twelve and four
Answers
Answer:
I think answer is the 112
Which is a greater angle of rotation? 720° or 6π radians? Explain how you know.
Answers
Answer: the angle would be much greater because the angle calculated up to over 12 radians
Step-by-step explanation:
Answer:
[tex]\boxed {\boxed {\sf 6 \pi \ radians}}[/tex]
Step-by-step explanation:
It's hard to compare degrees and radians, so we should convert, then compare.
To convert radians to degrees, we multiply by 180 over pi. This way, the pi will cancel out when dividing.
[tex]radian * \frac {180}{\pi}[/tex]
[tex]6 \pi * \frac {180}{\pi}[/tex]
[tex]\frac {1080 \pi}{\pi} \\[/tex]
[tex]1080[/tex]
6π radians is equal to 1080 degrees, which is much larger than 720 degrees, so it is the greater angle of rotation.
Please hurry!
I need both parts by tonight!
Answers
Answer:
okokookokokokjfdgugv
in a box of chocolates, 1/5 of the chocolates contain nuts.
the rest of chocolates do not contain nuts.
write down the ratio of the number of chocolates that contain nuts to the number of chocolates that do not contain nuts.
give your answer in the form 1:n
Answers
Answer:
1:4
Step-by-step explanation:
chocolates that contain nuts = 1/5
chocolates hat do not have nuts = 4/5
ratio = 1:4
I hope im rght! i
:)
Reports say that the mean birth weight of babies of European heritage is 3.5\text{ kg}3.5 kg3, point, 5, start text, space, k, g, end text. Marta wants to perform a significance test to see if this holds true in her nation. She takes a random sample of babies and observes a mean birthweight of \bar x=3.43\text{ kg.} x ˉ =3.43 kg.X, with, \bar, on top, equals, 3, point, 43, start text, space, k, g, point, end text Here's Marta's null hypothesis: H_0:H 0 :H, start subscript, 0, end subscript, colon The mean birth weight in this nation is...
Answers
Answer:
Reports say that the mean birth weight of. babies of European heritage is 3.5 kg. Marta wants to perform a significance test to see if this holds true in her nation. She takes a random sample of babies
Given: Circle A externally tangent to Circle B. How many possible common tangents to circles A and B can exist? 2 3 4
Answers
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Pls help with this I have limited time
Answers
Answer:
x = 8
z = 86
Step-by-step explanation:
6x + 46 = 13x - 10 (Because they're vertical angles)
6x - 13x = -10 - 46
-7x = -56
x = 8
6x + 46
6(8) + 46
94
z + 94 = 180
z = 86
