Answer:
k = 2
Step-by-step explanation:
Perpendicular lines have slopes opposite reciprocalFormula to find a slope:
m = (y₂-y₁)/(x₂-x₁)Coordinates of the first line:
(k-1, k+2) and (4, -1)Coordinates of the second line:
(-3, 2) and (2, 5)Slopes of the lines:
m₁ = (-1 - k -2)/(4 - k + 1) = - (k + 3)/-(k -5) = (k + 3)/ (k - 5)m₂ = (5 - 2)/ (2 + 3) = 3/5Since m₁ = - 1/m₂, we have:
(k + 3)/ (k - 5) = - 5/33(k + 3) = -5(k - 5)3k + 9 = - 5k + 253k + 5k = 25 - 98k = 16k = 2So the answer is 2
-5x - 2y = 13
-4x + y = 0
Solve by substation
Answer:
(x,y)=(-1,-4)
Step-by-step explanation:
-4x + y = 0
+4x +4x
y=4x
-5x - 2y = 13
+5x +5x
-2y = 5x+13
-2(4x) = 5x+13
-8x=5x+13
-5x -5x
-13x/-13=13/-13
x=-1
Thus:
y=4x
y=4(-1)
y=-4
can yall pls help me im kinda dumb
The answer is D.
Turning fractions into decimals will help you eliminate answers!!
How I got D:
-2 3/4 can be turned into -2.75 by dividing 3/4.
-2 3/4 is the smallest number out of all of them so it has to be first.
-2.67 is the second smallest value.
3/5 is .60 making it the third smallest value.
4 is the second largest value.
17/4 is 4.25, which is the largest.
A is not correct because -3/5 is not the smallest number.
B Is not correct because the largest number is 17/4.
C is not correct because -2.67 is not the smallest number.
(HIGH POINTS) help urgently please!!!!
Answer:
its blurry the photo
Step-by-step explanation:
Answer:
67/24
Step-by-step explanation:
Remember PEMDAS
First you solve the parenthesis which is 11/12.
Then do exponents 2^4=16
For division do left to right so 2/3 ÷ 16 = 1/24
and the other division is 11/12 ÷ 1/3 = 11/4
Add the two 1/24 + 11/4 = 67/24
67/24 is the answer
Hope this helps
HELP PLEASE! IM STUCK!
Answer:
D
Step-by-step explanation:
Which of the following expressions is equal to 1 divided by 16
Answer: 21
Step-by-step explanation:
Pleaseeee help !! I made this a 50 point question
The angle "b" and the angle "d" are both the same angle measure. In other words, they are opposite angles that share the black dot in the middle. Angle "a" and angle "c" are both opposite angles which make them the same. They can also be called congruent angles. Even if they are facing a different direction, they are the same.
Therefore, the answer is 130 degrees
Best of Luck!
answer:
130 degrees
explanation:
the angles "a" & "c" are opposite (also called congruent) so they are the same.
what is 4(3x+5) i need help
Answer:
As an equation its 12x+20
Step-by-step explanation:
Ella works in the produce section at a grocery store. The store receives a shipment of green
and red apples that weighs 20.4 pounds in total. Ella separates the green and red apples into
bins by color. If red apples make up of the shipment by weight, how many pounds of
apples are green?
4
Answer:
74 is the answer please mark me as brainlist and also follow me
2d + 3 ≤ –11 or 3d – 9 > 15?
Answer: d≤-7 and d>8
Step-by-step explanation:
3d - 9 >15 answer is d>8 and 2d + 3 ≤ -11 is d≤-7
K = 4a + 9ab solve for a
Answer:
[tex]a=\frac{K}{4+9b}[/tex]
Step-by-step explanation:
[tex]K=4a+9ab[/tex]
Switch sides:
[tex]4a+9ab=K[/tex]
Factor out a:
[tex]a\left(4+9b\right)=K[/tex]
Divide both sides by: [tex](4+9b)[/tex]
[tex]\frac{a\left(4+9b\right)}{4+9b}=\frac{K}{4+9b}[/tex]
[tex]a=\frac{K}{4+9b}[/tex]
SOLVE ATTACHMENT PLEASE!!!!!!!
[tex]B=\frac{h+D^{2}5g}{D^{2} }[/tex]
Step-by-step explanation:h = D²(B - 5g)
h = D²B - D²5g
h + D²5g = D²B
B = (h + D²5g)/D²
The ceiling in Mitchell’s bedroom measures 12 feet by 10 feet 11 inches. What’s the total area of the ceiling in square inches?
Answer: 12x10x11 I think so 1320
Step-by-step explanation:
7) Line Segment PR is 5 ft. Find the length of Line Segment PQ and QR. (Hint: use the segment addition postulate.)
Answer:
PQ = 1 ft
QR = 4 ft
Step-by-step explanation:
From the picture attached,
Segment PR has been divided into two parts by a point Q.
Length of segment PR = 5 feet
Length of segment PQ = (15x - 2) ft
Length of segment QR = (5x + 3) ft
Since, PR = PQ + QR
5 = (15x - 2) + (5x + 3)
5 = 20x + 1
20x = 4
x = [tex]\frac{4}{20}[/tex]
x = 0.2
PQ = 15x - 2
= 15(0.2) - 2
= 3 - 2
= 1 ft
QR = 5x + 3
= 5(0.2) + 3
= 1 + 3
= 4 ft
please answer the problem below
Answer:
d) m<ADC=44°
Step-by-step explanation:
7x-19=9x-37
-19+37=9x-7
18=2x
x=9
m<ADC=9x-37=9(9)-37=81-37=44
Step-by-step explanation:
Your answer would be D) 44°
Which graph correctly shows the solution of the compound inequality 3x 2 -12 and 8x < 16?
Answer:
8x < 16 it shows the solution of the compound inequality
The area common to both the graph inequalities represent the solution set.
What is inequality? Differentiate between equation and expression? inequality : An inequality is used to make unequal comparisons between two expressions or numbers.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is the compound inequality as -
3x > -12
and
8x < 16
Refer to the graph of the inequalities attached. The area common to both the graphs represent the solution set.
Therefore, the area common to both the graph inequalities represent the solution set.
To solve more questions on inequality, visit the link below -
brainly.com/question/14610360
#SPJ2
what is the value of (5.3x10^4)(4.2x10^3)l
Answer:
scientific notation = 2.226 * 10^8
Standard form = 222600000
As it is 22.26 * 10^7
Step-by-step explanation:
(5.3x10^4)(4.2x10^3)
Since all the numbers are being multiplied by each other, one can use the associative property to change the order in which they are multiplied.
5.3 x 10^4 x 4.2 x 10^3
= 5.3 * 4.2 * 10^4 * 10^3
= 22.26 * 10^7
Either convert back to scientific notation, standard form or keep as it is.
scientific notation = 2.226 * 10^8
Standard form = 222600000
As it is 22.26 * 10^7
Solve y = x + 8 for x.
y = x + 8
Subtract 8 from both sides
y - 8 = x
Answer:
x= y-8
Step-by-step explanation:
Hope this helps.
What is the value of the expression?
-16+ 12
-28
-4
4
28
Answer:
-4 is the corect answer because when your adding integers depending if your number is negative or positive your sum will either go right or left up or down
Step-by-step explanation:
as shown with the attached file
HELP PLS WILL GIVE BRAINLISTE
Answer: D and J
Step-by-step explanation:
Subtract 17.56 from both sides and divide by 5 to get the answer of D. 2.52
3x + 6 = 9
subtract 6 from both sides
3x = 3
x = 1
The Unit Rate is when both units in a rate are equal to each other (ie. 5 cats : 5 dogs)
True
False
Answer:
False
Step-by-step explanation:
Unit Rate Definitions Unit rate is used to compare quantities in which the second quantity is one. Common examples of unit rate would include, miles per hour earnings per hour cost per gallon.
How much of something per 1 unit of something else. Examples: • 100 cars pass by in 2 hours. The unit rate is 50 cars per hour.
Answer:
False
Step-by-step explanation:
it could be 5 cats : 6 dogs.
Unit rates can be unequal too.
Yolanda is buying supplies for school. She buys n packages of pencils at 1.40 per package and m pads of paper at 1.20 each. What does the term in the expression 1.4n + 1.2m represent? What does the entire expression represent?
Name the subset(s) of real numbers to which each number belongs. Then order
the numbers from least to greatest.
9
10.-11.16
Answer:9,10,11,16
Step-by-step explanation:
9 is the least then 10 then 11 16 is the greatest
Algebra 1- 10 pts
Solve for t.
−4t≤48
Enter your answer as an inequality
A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position?**
Answer:
650
Step-by-step explanation:
800-250=650
It's like taking a negative number and adding a positive number to it
-7/2 x 1/6 (make it a fraction) (simplified)
The answer would be -7/12
Step-by-step explanation:
What you would do is
a/b×c/d=ac/bd
this would be the formula
so what you would do is -7 (which is the numerator X the other numerator which equals -7 times 1= -7
then you would do 2 X6= which is 12 so the answer would be 7/12 because you can't simplify it anymore
Can someone please help? This is due today, and I have NO CLUE
Step-by-step explanation:
Multiplication......
Marco walked 27/100 kilometer to the park. then he walked 3/10 kilometer to the library. What fraction of a kilometer did he walk in all?
Answer:57/100
Step-by-step explanation:
First, convert 3/10 into hundreths to get a denominator equal to the other:
3/10 km = 30/100km
Add the numerators: 27+30=57
Place numerator over common denominator: 57/100
h(-1) means that x is...
Answer:
-1
Step-by-step explanation:
h(x) is another way to say y. the "x" inside h(x) IS the x value
X- (-12)=25
( FIND X)
Step-by-step explanation:
X- (-12)=25
X+12=25
X=25-12
X=13
please mark as brainliest
What is 4 less than three sevenths of y
Answer:
[tex]\frac{3}{7}y - 4[/tex]
Step-by-step explanation:
Let's start with the part "three sevenths of y". In this statement, "of" means multiply or times. So, let's apply that. It would now be three sevenths times y. Three sevenths times y looks like this: 3/7y"4 less than" means subtraction because less than means subtractions. So our first part is 3/7y. Now let's add less 4 less than: 3/7y - 4.I hope this helps!