Which equation in point-slope form describes the line that passes through the point (4,-5) and is perpendicular to
the line represented by
- 7x + 2y = 14?
Answers
9514 1404 393
Answer:
D y +5 = -2/7(x -4)
Step-by-step explanation:
The point-slope form is ...
y -k = m(x -h) . . . . . . line with slope m through point (h, k)
You're given (h, k) = (4, -5), so the equation will be of the form ...
y +5 = m(x -4) . . . . for some slope m
This form eliminates the first two choices.
__
The slope of the given line is the coefficient of x when solved for y:
2y = 7x +14
y = 7/2x +7 . . . . slope is 7/2
The perpendicular line will have a slope that is the opposite reciprocal of this, ...
-2/7 . . . . slope of perpendicular line
This is the slope shown in choice D:
y +5 = -2/7(x -4)
D
Step-by-step explanation:
Related Questions
Barry bought a wooden board that measured 8 feet in length. He cut off a piece that measured
65 feet. How much of the board was left?
Answers
Answer:
-57
Step-by-step explanation:
If he had an 8 ft board and cut 65 ft off it would be -57.
Tamara walked for 2 1/4 miles . How many feet did she walk ?
Answers
Answer:
11880 feet!
Hope you get this correct
factor completely 2x^3-18x
Answers
Answer:
2x(x+3)(x-3)
Step-by-step explanation:
5x + 34 = -2(-7x + 1)
Answers
5x+34=14x-2
34+2=14x-5x
36=9x
x=36/9
x=4
What is 12/15 = ab/20
(geometry converse of pythagorean theorem)
Answers
Answer:
31
Step-by-step explanation:
In circle S: XB and XD are tangents at B and D
then SB perpendicular to AX and SD perpendicular to XC
In triangle SDX: SD = 12 and SX =20 by using Pythagoras Theorem
XD = XB tangents to circle S from point X
XA = XC tangents to circle R from point X
then BA = DC = 15
then XC = XD + DC = 16 + 15 = 31
for the parallelogram find the value of x,y,and z
Answers
Answer:
X = 119, Y = 61, Z = 119
Step-by-step explanation:
These are supplementary angles and equal 180.
180 - 61 = 119
Opposite angles are congruent
The difference between 8 and 3
times a number is 29
Answers
Answer:
5.8
Step-by-step explanation:
8 - 3 = 5
29/5 = 5.8
The difference times a number is in parenthesis and if it needs to be multiplied, use x as a variable and make it equal to 29
The stock of Company A gained $2.75 throughout the day and ended at a value of $71.50. By what percentage did the stock rise?
Answers
Answer:
4%
Step-by-step explanation:
New value:
$
71.50
New value: $71.50
Old value:
71.5
−
2.75
=
$
68.75
Old value: 71.5−2.75=$68.75
68.75
(
1
+
r
)
=
71.5
68.75(1+r)=71.5
68.75
(
1
+
r
)
68.75
=
71.5
68.75
68.75
68.75(1+r)
=
68.75
71.5
1
+
r
=
1.04
1+r=1.04
r
=
0.04
r=0.04
Subtract 1
The stock gained 4
%
The stock gained 4%
Multiply by 100
Milo earns his regular pay of $12.00 per hour for up to
40 hours of work per week. For each hour over
40 hours of work per week, Milo earns 1 times his
regular pay. How much does Milo earn in a week in
which he works 45 hours?
Answers
Answer: $540
Step-by-step explanation:
If Milo works 40 hours for the week, he earns $12.00 per hour.
If Milo works anything over $40, he makes 1 times his normal pay which means that he is making the same amount over 40 hours as he is under 40 hours.
If he works 45 hours therefore, his pay is:
= 45 * 12
= $540
To find the median you do not have to arrange the numbers in order from least to greatest (true or false)
Answers
Answer:
false
Step-by-step explanation:
you have to order them from least to greatest in order to find the answer
(3z+1)+5+7z) Step by step explanation needed
Answers
Answer: 10z + 6
Step-by-step explanation:
this is a short problem.. sometimes you would need to distribute, but since there is no number in front of parenthesis you can just get rid of them
that gives you: 3z + 1 +5 + 7z
now from here we combined liked terms
7z + 3z = 10z
1 + 5 = 6
so that gives you: 10z + 6
A student has heard that spinning pennies on a table, rather than flipping them in the air, results in tails side up 65% of the time. If this is true, what is the probability that a student who spins 4 pennies will have them all land tails side up? 0.0150 0.1785 0.8215 0.9850
Answers
so I believe it is C 0.8215
The probability is 0.1785
What is probability?The study of how likely certain events are to occur is known as probability. In its simplest form, it is concerned with the fall of a game's cards or the roll of a dice. However, probability is also essential to life and science as a whole. Probability is used, for example, in weather forecasting and figuring out how much your insurance premiums will cost.
Given probability of tail by spinning a coin is 65% = 0.65
p(t) = 0.65 and p(h) = 0.35
where h= head and t= tail
coin spins 4 time
p(t) for first time = 0.65
p(t) for second time = 0.65 x 0.65 =0.4225
p(t) for third time = 0.65 x0.65 x 0.65 = 0.274
p(t) for fourth time = 0.65 x 0.65 x0.65 x 0.65 = 0.178
Hence probability that a student who spins 4 pennies will have them all land tails is 0.178
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12/15=x/25 solve (algebra) pleas help I will mark brainlyesst
Answers
Answer:
20/25
Step-by-step explanation:
12/15=
4/5=
20/25
ANSWER ASAP I ONLY HAVE LESS THAN 3 MINUTES LEFT AND IM STRUGGLING
A study showed that 25% of the students drive themselves to school. Based on the suggested probability, in a class of 18 students, about how many students would you expect to drive themselves to school?
3
4
6
None of the above.
Answers
Answer:
I mean its 4.5 but u can't have half a student and it rounds up to 5 and thats not an answer choice, but it could be 4 so
Step-by-step explanation:
Quadrilateral IJKL is similar to quadrilateral MNOP. Find the measure of side NO. Round your answer to the nearest tenth.
Answers
Answer:
[tex]NO = 66.9[/tex]
Step-by-step explanation:
Given
See attachment for quadrilaterals IJKL and MNOP
Required
Determine the length of NO
From the attachment, we have:
[tex]KL = 9[/tex]
[tex]JK = 14[/tex]
[tex]OP = 43[/tex]
To do this, we make use of the following equivalent ratios:
[tex]JK : KL = NO : OP[/tex]
Substitute values for JK, KL and OP
[tex]14 : 9 = NO : 43[/tex]
Express as fractions
[tex]\frac{14}{9} = \frac{NO}{43}[/tex]
Multiply both sides by 43
[tex]43 * \frac{14}{9} = \frac{NO}{43}*43[/tex]
[tex]43 * \frac{14}{9} = NO[/tex]
[tex]\frac{43 * 14}{9} = NO[/tex]
[tex]\frac{602}{9} = NO[/tex]
[tex]66.8889 = NO[/tex]
[tex]66.9 = NO[/tex] --- approximated
[tex]NO = 66.9[/tex]
Answer:
Quadrilateral DEFG is similar to quadrilateral HIJK. Find the measure of side KH. Round your answer to the nearest tenth. Figures are not drawn to scale.
Step-by-step explanation:
The price of a pair of shoes increases from $67 to $83. What is the percent 1 point
increase to the nearest percent? *
Answers
Answer:
16
Step-by-step explanation:
Expand and simplify
(X+7)(x-9)
Answers
Answer:
X²+16x-63
Step-by-step explanation:
expand out the brackets to get:
X²+9x+7x-63
simplify:
X²+16x-63
solve the equation 3(x+4)=60
Answers
Answer:
x = 16
Step-by-step explanation:
3(x + 4) = 60
3x + 12 = 60 (I got this using the distributive property)
-12 -12
----------------------
3x = 48
÷3 ÷3
----------------
x = 16
Multiplying by 0.21 is the same as increasing by _____%.
Answers
Answer:
20%
Step-by-step explanation:
The LSA of square based pyramid with equal edges is 144 square root 3. Find the area of base ?
Answers
a2=LSA/3–√=144
a a a a a a a a a a a a a
The answers are already there, I just need the work. I'm giving all of my points into this one :)
Answers
Do ACT score reports come in the mail or is it just accessible online?
Answers
Answer:
I believe it should come in the mail and online x
A
Use the drop-down menus to identify the parts of the
coordinate plane
Line A is the
В
Region BIS
Point C is the originy
Line D is the
Answers
Answer:
Line A is the : ✔ y-axis
Region B is: ✔ a quadrant
Point C is the: ✔origin
Line D is the: ✔ x-axis
Step-by-step explanation:
Did it on Edgen
For the given coordinate plane the letters A, B, C and D represent the y-axis, first quadrant, origin and x-axis respectively.
What is a coordinate plane?A coordinate plane can be defined as the surface formed by two perpendicular lines which intersect each other. The vertical and horizontal lines are known as y and x axis respectively.
The intersection of these lines is known as the origin.
The diagram of the coordinate plane can be analysed as,
(a) Line A is the vertical perpendicular line.
It can be called as y-axis.
(b) Region B lies in the part of the coordinate plane where x and y coordinates are positive.
It is known as the first quadrant.
(c) Point C lies at the intersection of two lines perpendicular to each other.
It can be said the origin.
(d) Line D is the horizontal line.
It can be called as x-axis.
Hence, the given letters A, B, C and D represent the y-axis, first quadrant, origin and x-axis respectively.
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The missing diagram is attached here.
Can y’all help me get the right answer??
Answers
The answer is 4^3 = 64 rabbits :)
What is the greatest common factor (GCF) of 12x and (3x^2 + 6x)?
(B) 3x
(C) X + 2
(D) 3x(x + 2)
(A) 3
Answers
~!¡! Congruent and Similar Polygons !¡!~
~Please help~
Answers
Answer:
A) 5/4
Step-by-step explanation:
5) Find the value of x
Answers
Answer:
Step-by-step explanation:
Answer:
x = 12
if the angles are vertical, they are congruent
milk truck delivers 376 dozen gallons of milk to stores in 1 day. Write and solve an equation to find n, the number of gallons of milk the milk truck delivers in 1 day. pls help!
Answers
Answer:
376*12=n
My logic:
there are 12 items in a dozen. so 376 dozens times 12 will result in the total milk delivered in a day.
what percentage of students have no brothers OR sisters but have a dog?
Answers
80+60=130 so 130/1000 you may need to divide
-9 + 5y - 7y + 3y = ?
Answers
Answer:
-9 + y
Step-by-step explanation:
For this problem, you have to combine like terms.
-9 is the only number that doesn't have a variable.
5y, -7y, 3y have all the the same variables, so we'll combine those.
5y - 7y = -2y
-2y + 3y = 1y
Solution: -9 + y