Answers
Answer:
y=4x+7
Step-by-step explanation:
Related Questions
Quadrilateral JKLM is graphed with vertices at J(-2,2), K(-1,-5), L(4,0), and M(3,7).
A) Prove that the diagonals JL and MK have the same midpoint.
B) Prove that segments JL and MK are perpendicular.
Answers
Answer:
Question (a)
Midpoint of a line segment:
[tex]M=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
Given:
J = (-2, 2)L = (4, 0)[tex]\implies \textsf{midpoint of }JL=\left(\dfrac{-2+4}{2},\dfrac{2+0}{2}\right)=(1,1)[/tex]
Given:
M = (3, 7)K = (-1, -5)[tex]\implies \textsf{midpoint of }MK=\left(\dfrac{3-1}{2},\dfrac{7-5}{2}\right)=(1, 1)[/tex]
Question (b)
Find slopes (gradients) of JL and MK then compare. If the product of the slopes of JL and MK equal -1, then JL and MK are perpendicular.
[tex]\textsf{slope }m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
Given:
J = (-2, 2)L = (4, 0)[tex]\implies \textsf{slope of }JL=\dfrac{0-2}{4+2}=-\dfrac13[/tex]
Given:
M = (3, 7)K = (-1, -5)[tex]\implies \textsf{slope of }MK=\dfrac{-5-7}{-1-3}=3[/tex]
[tex]\textsf{slope of }JL \times \textsf{slope of }MK=-\dfrac13 \times3=-1[/tex]
Hence segments JL and MK are perpendicular
The vertices A(-2,-1), B(-3, 2), C(-1, 3), and D(0, 0) form a parallelogram. The vertices A'(-1, -2), B'(2, -3), C'(3,-1),
and D'(0, 0) are the image of the parallelogram after a sequence of transformations. Which sequence of transformations
could produce the image from the pre-image?
O a reflection over the x-axis and then a reflection over the y-axis
O a reflection over the y-axis and then a 90clockwise rotation about the origin
O a 90clockwise rotation about the origin and then a reflection over the y-axis
O a 90 counterclockwise rotation about the origin and then a reflection over the x-axis
Save and Exit
Next
Mark this and return
Submit
Answers
Answer:
A is correct.
Step-by-step explanation:
The rule for this transformation is that (x,y) will become (y,x) if it flips over y=x OR the y-axis and the x-axis.
help ill give brainliest
alculate the area of the figure below using the following information:
Area of triangle ABC = 7.95 square units
Area of triangle ACD = 9.8 square units
Area of triangle AED = 8.75 square units
Image of irregular pentagon with vertices points A, B, C, D, and E starting at upper left moving clockwise. Two dotted diagonal lines, one connecting vertices A and C, and the second connecting vertices A and D.
The area of the Figure ABCDE is ______ square units
Answers
Answer:
26.5
Step-by-step explanation:
The areas of the three triangles given do not overlap. So the SUM (adding) of the three triangles is equal to the area of the pentagon.
Area of ABCDE
=ABC+ACD+AED
=7.95 + 9.8 + 8.75
= 26.5 sq units
Simplify the expression.
27 1/3+ 32 1/5
select one:
a. 2
b. square root of 5
c. 1/2
d. 5
e. 4 square root of 3
Answers
QUESTION 5
Find the error in the problem below. Then give the correct answer.
X + 2x – 5 = -2
3x - 5 = -2
+5 +5
3x = 7
x= 7/3
Answers
Answer:
[tex]x + 2x - 5 = - 2 \\ 3x = 3 \\ x = 1[/tex]
is 5=-2 no infinitely many or 1 solution
Answers
Answer:
no solution
Step-by-step explanation:
Need help with my assignment
Answers
Answer:
Step-by-step explanation:
[tex]\frac{(3x+4)(2x-6)}{0}[/tex]=
[tex]6x^{2} -18x+8x-24[/tex]/0
anything divided by zero is not possible so the answer is infinity
you can helps me?
f(x) = x + 20
g(x) = x + 5
(f o g) (2) = ?
Answers
»(f o g)(2)
find (f o g)(x)»f(g(x))
»f(x + 5)
»x + 5 + 20
»x + 25
so, (f o g)(2) is
»2 + 25
»27✅
Answer:
27
Step-by-step explanation:
f(x) = x + 20
g(x) = x + 5
f(g(x))
= f(x + 5)
f(x + 5) = x + 20 + 5
= x + 25
= 2 + 25
= 27
Factor the expression below. 9x^2-1 A. (3x - 1)(3x - 1) B. (3x - 1)(3x + 1) C. (x - 1)(9x - 1) D. (x - 1)(9x + 1)
Answers
Answer:
(3x + 1) • (3x - 1)
Step-by-step explanation:
Step by Step Solution
More Icon
STEP
1
:
Equation at the end of step 1
3[tex]{}^{2}[/tex]x[tex]{}^{2}[/tex] - 1
STEP
2
:
Trying to factor as a Difference of Squares:
2.1 Factoring: 9x[tex]{}^{2}[/tex]-1
Theory : A difference of two perfect squares, A[tex]{}^{2}[/tex] - B[tex]{}^{2}[/tex] can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A[tex]{}^{2}[/tex] - AB + BA - B2 =
A[tex]{}^{2} [/tex]- AB + AB - B2 =
A[tex]{}^{2}[/tex] - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 9 is the square of 3
Check : 1 is the square of 1
Check : x[tex]{}^{2}[/tex] is the square of x1
Factorization is : (3x + 1) • (3x - 1)
Final result :
(3x + 1) • (3x - 1)
Tanner is walking home from school, which is 9 blocks from his home. He walks 1 block per minute.
Write an equation that shows the relationship between the number of minutes Tanner has been walking, x, and the number of blocks he is from home, y.
Answers
Answer:
-x+9
Step-by-step explanation:
Here is the equation that shows the relationship between the number of minutes Tanner has been walking, x, and the number of blocks he is from home, y:
y = 9 - x
What type of equation is this?This equation is a linear equation, and it can be interpreted as follows:
The number of blocks Tanner is from home is decreasing at a rate of 1 block per minute.
The y-intercept of the equation is 9, which represents the number of blocks Tanner is from home when he starts walking.
The slope of the equation is -1, which represents the rate at which Tanner is getting closer to home.
Read more about linear equation here:
https://brainly.com/question/2030026
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What is the total price of a $6.89 item plus 6% sales tax?
Answers
OR
$6.89 • .06 = $0.4134
$6.89 + $0.4134 = $7.3034
$7.30 (rounded to the nearest hundredths) after sales tax
The total price of a $6.89 item plus 6% sales tax is $7.3043.
What is a percentage?The percentage is calculated by dividing the required value by the total
value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
Cost of an item = $6.89
Sales tax = 6%
This means,
Sales tax amount.
= 6/100 x 6.89
= 0.4143
Now,
The total amount of the item.
= 6.89 + 0.4143
= $7.3043
Thus,
The total price plus 6% sales tax is $7.3043.
Learn more about percentages here:
https://brainly.com/question/11403063
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find the values of X,Y and Z
Answers
What is the surface area of the figure in square units?
Answers
Answer:
62 square units
Step-by-step explanation:
Top or bottom is 5 x 3, surface area is 15
front or back is 3 x 2, area = 6
left or right is 5 x 2, area = 10
so total area is 2*(15 + 6 + 10) = 62 square units
30 POINTS!!!
What is $3,009.32 rounded to two decimal places?
Answers
Answer:
its already rounded to 2 decimal places
Step-by-step explanation:
Answer:
2 . places
Step-by-step explanation:
I guess I guess I guess I guess I guess
Write equivalent fractions for 3^3 bottom 4 and 1^2 bottom 3
Answers
[tex]\tt \dfrac{3^3}{4}=\dfrac{27}{4}\\\\\dfrac{1^2}{3}=\dfrac{1}{3}[/tex]
Answer:
[tex]\frac{3^3}{4}=\frac{3*3*3}{4}=\frac{27}{4}[/tex]
[tex]\frac{1^2}{3}=\frac{1*1}{3}=\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{3^3}{4}[/tex] and [tex]\frac{1^2}{3}[/tex]
[tex]\frac{3^3}{4}=\frac{3*3*3}{4}=\frac{27}{4}[/tex]
[tex]\frac{1^2}{3}=\frac{1*1}{3}=\frac{1}{3}[/tex]
Hope this helps!
a child has a box of candies which might have a toy inside. the odds against the box having toys inside are 6/7. what is the probabilty of the box having a toy?
Answers
Answer:1/7
Step-by-step explanation:
6 out of every seven have no toys, therefore the odds of a box having toys is 1/7
EXplain please ! i will mark brainliest show UR WORKING
Answers
Answer:
A
Step-by-step explanation:
Since PQRS is a square, PQ=QR.
[tex]4x + 3 = 41[/tex]
[tex]x = 38[/tex]
[tex]x = 9.5[/tex]
A diagonal of square PQRS creates two isoceles right triangles. So angle PQT measures 45 degrees. We then have:
[tex]2x + 4y = 45[/tex]
[tex]2(9.5) + 4y = 45[/tex]
[tex]19 + 4y = 45[/tex]
[tex]4y = 26[/tex]
[tex]y = 6.5[/tex]
During the winter clearance sale, The Cyclery has marked down all bicycles
20 percent and all accessories 25 percent. You purchase a 26-inch 10-speed bike
that regularly sells for $399.95, a chain and lock that regularly sell for $16.99, a
tire gauge and pump that regularly sell for $24.49, and a deluxe generator and
light package that regularly sells for $79.95.What is the total sale price for
your purchases?
Answers
Answer:
During the winter clearance sale, The Cyclery has marked down all bicycles
20 percent and all accessories 25 percent. You purchase a 26-inch 10-speed bike
that regularly sells for $399.95, a chain and lock that regularly sell for
Step-by-step explanation:
hope it helps
simplify to create an equivalent expression. 8 -4(-x + 5)
Answers
Answer:
4x - 12
Step-by-step explanation:
8 - 4(-x + 5)
8 + 4x - 20
4x - 12
Select the correct answer.
Simplify the following expression.
5^-5/2 x 5^9/2
A.
B.
C.
D.
Answers
Have a good night
Carbon dating description
Answers
I will give BRAINLIEST :))
Question 4 mille Choice Worth 5 points)
(LC)
STORIES OF USEFUL INVENTIONS, excerpt
By S. E. Forman
1911
THE MATCH
There never was a time when the word was without fire, but there was a time when men did not know how to Kindle fire and after they teamed how to Kindle one, it was a long, long time before they learned how to kindle one easily
In these days we can kindle a fire without any trouble, because we can easily get a match, but we must remember that the match is one of the most wondertul things in the world, and that it took men thousands of years to kam how
to make one. Let us learn the history of this familiar e object, the match
Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set abtaze by a thunderbolt, we may say that nature strikes a match. In the eany history of the world,
nature had to kindle all the fires, for man by his own effort was unable to produce a spark The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by nature-by a volcano, perhaps, or by a stroke of
lightning These firebrands were carried to the home and used in kinding the fres there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would
sometimes be extinguished a sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.
In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, Chlorate of potash, and sulphid of antimony, and nutbed it on sandpaper, and it burst into fame. The druggist had discovered the first friction
chemical match the kind we use to-day. It is called friction chemical because it is made by miding certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless was not a
good one it could be lighted only by hard rubbing, and it sputtered and the in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now
Delighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub t. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the
match with which we are so familiar
Which does the author mean by nature had to knde as the fires, for man by his own effort was unable to produce a spark?
1. Humans were unable to make fire
2. Nature was unable to make fire
3. Humans were not very intelligent
4. Humans did not try to make fire
Answers
Evaluate the expression Ab/c for
A. = 2.1 B.= 4 and c= 0.5
Answers
2.1 x 4 = 8.4
8.4/0.5 =
16.8
Answer:
-16.8
Step-by-step explanation:
credit javenKAI
Help 'Find the area of the figure'
Answers
Answer:
26ft2
Step-by-step explanation:
make it into squares so 2x2 = 4ft
3 x 5 = 15ft
2 x 2 = 4ft
2 x 3 = 6 ÷ 2 = 3ft
4 + 15 + 4 + 3 = 26ft2
Answer:
26 sq ft
Step-by-step explanation:
turn composite figure into workable figures.
in this case a rectangle (5x3) and
a trapezoid (B1 = 7, B2 = 4, and height = 2)
Change 457 millimeters to centimeters
Answers
Answer:
45.7 Centimeters
Step-by-step explanation:
Hope this helped! :)
what is the probability There are 12 face cards in a standard 52-card deck. If a card is selected at random from a well-shuffled deck, find the probability that it is not a face card. The answer should be a decimal or percent.
Answers
Answer:
There are 52 cards in a deck… 12 of these are Face Cards (the J - Q - K of all four suits).
The probability of getting one of these is therefore 12 out of 52 — or 12/52, which is 23%. Not quite a 1 out of 4 chance, but close.
I need help with this equation
Answers
Can you please help me with this question using proportions
Answers
Answer:
$2520
Step-by-step explanation:
manuel bought the car for 65% of $7200
100-65=35
manuel paid 35% of 7200 for the car.
7200*0.35=2520
Josh makes 9 dollars for each hour of work. Write an equation to represent his total pay p after working h hours
Answers
P = (9dollars/hour) * (h hours)
Hope that helps!
76 divided by 19 using a array
Answers
4
Step-by-step explanation:
