Answer:
y = [tex]\frac{1}{2}[/tex] x - 5
Step-by-step explanation:
Given expression:
2x + y = -5
Find the equation of the line perpendicular
Solution:
A line perpendicular to this line will have a negative inverse slope;
Equation of any line is given as;
y = mx + c
y and x are the coordinates
m is the slope
c is the intercept
Re-write;
2x + y = -5
y = -2x - 5
Now,
we know that the slope is -2
A line perpendicular will have a slope of [tex]\frac{1}{2}[/tex] ;
So;
Equation of the line is;
y = [tex]\frac{1}{2}[/tex] x - 5
How many millimeters are there in 7.89 meters?
O 7,890 millimeters
O 78,900 millimeters
O 789 millimeters
O 789,000 millimeters
Answer:
The first choice: 7,890 millimeters
Step-by-step explanation:
Remember that there are 100cm in a meter; there are 10mm in a centimeter.
100*10=1000
There are 1000 millimeters in a meter.
7.89*1000=7890
There are 7890 millimeters in 7.89 meters.
I hope this helps!!!
I need help pls 3(2x + 5) ≥ 2(x + 6)
Answer:
-3(2x-5)<5(2-x)
Step-by-step explanation:
hope this helps
Answer:
x ≥ -3/4
Step-by-step explanation:
3(2x + 5) ≥ 2(x + 6)
Distribute
6x+15 ≥ 2x + 12
Subtract 2x from each side
6x-2x+15 ≥ 2x-2x + 12
4x+15 ≥ 12
Subtract 15 from each side
4x+15-15 ≥ 12-15
4x ≥ -3
Divide each side by 4
4x/4 ≥ -3/4
x ≥ -3/4
Help me please and thank you!!!
Answer:
f(3) = - 60
Step-by-step explanation:
To evaluate f(3) substitute x = 3 into f(x), that is
f(3) = 5(3)² - 7(4(3) + 3)
= 5(9) - 7(12 + 3)
= 45 - 7(15)
= 45 - 105
= - 60
Please give the correct answer and explain im really trying to learn this so I need the explanation not just an answer. Thankyou!
Answer:
x = tan⁻¹(⅘)
Step-by-step explanation:
We can solve for x by using trigonometric ratios (sin, cos, and tan)
We need to apply the appropriate ratio that uses the two sides 8 and 10 from the perspective of x. See attached image for information about ratios. (Source: Math is Fun)
The tangent ratio is opposite divided by adjacent. It will relate x to the two sides. So we would write
tan(x) = ⁸⁄₁₀
Then we simplify and move the tan to the other side by multiplying both sides by the inverse of tan (since you cannot divide by tan)
tan(x) = ⅘
x = tan⁻¹(⅘)
Then we can use a calculator to evaluate x
If you want to find y, now that you have two angles of the triangle, you can find the sum of 90 + x and subtract that from 180 (since all angles of a triangle add up to 180) to find y.
Complete the steps to solve for x.
- 0.71X +0.51x= 4.2
- 0.71x +0.51x= 4.2
[x = 4.2
Katie has $20 in a savings account that earns 10% interest, compounded annually.
To the nearest cent, how much interest will she earn in 3 years?
Answer:
In 3 years she will make $6.44.
Step-by-step explanation:
Answer
19.86
Step-by-step explanation:
There are 4 red marbles and 2 blue marbles in a bag. What is the least number of red and blue marbles that can be added to the bag to create a ratio of 3 red marbles to 1 blue marble
Answer:
4
Step-by-step explanation:
3 + 1 = 4
Find the perimeter of the figure. Round to the nearest tenth if
necessary.
Answer:
24
Step-by-step explanation:
15+ [tex]\sqrt[18][/tex][tex]\sqrt[2]{18}[/tex] + 1.5pi
19.7+[tex]\sqrt[2]{18}[/tex]
23.95
how do i even solve this?? i’m super confused anything would help. ty.
Answer:
[tex] {b}^{4} + 1[/tex]
Your teacher messed up the question so just put the top right answer and ask your teacher if they did accidently miss-type.
Step-by-step explanation:
The first thing to do in this equation is look at the exponents. When multiplying a variable (or any number equal to itself with the same exponent) you only have to add the exponent. So for a, you would add the exponents to get 0, so a to the power of 0 is 1, because any number to the power of 0 is 1. For b, we would add the 3 and 1. (When no exponenet is present in a number then it is 1, so for this I added 3 and 1). So it would be 4. The correct answer is
[tex] {b}^{4} + 1[/tex]
Korey plants trees at a constant rate of 12 trees every 3 hours. What is an equation that relates p, the number of trees that korey plants, and h, the time he spends planting them in hours.
Answer:
p=4h
Step-by-step explanation:
Knowing that Korey plants 12 trees every 3 hours we then can figure out how many trees he plants in 1 hour, by dividing the ratio (12) to the rate (3) by doing that we get 4, which is the amount of trees that he would plant in 1 hour. Then the number of tree's that he plants (p) would equal 4 times how many hours he spends planting them.
what is the value of each digit in 312.054
Answer:
I think this is correct if not lmk please!
Step-by-step explanation:
300
10
2
.
0
5
4
how do you expand 2(p-j)
Answer:
Disturbute
Step-by-step explanation:
2p-2j
What is the equation of the following graph in vertex form?
(2, 1)
(0,5)
Step-by-step explanation:
ur ans
Kirby is packing granola bars for a field
trip. He already packed two bags with five granola bars in each bag. He has ten more to pack. How many granola bars will Kirby pack
Answer:20
Step-by-step explanation:
If I'm understanding the questions correctly it is asking how many granola bars in total. So you take the 5 in the 2 bags which is 2•5 which is ten and add those to the ten more he has to pack which is 20.
There are 15 female students in Ms. Stell's World History Class. The ratio of females to males is 5:4. How many males are in her class?
Answer:
12
Step-by-step explanation:
Since 15 is 3 times the ratio you multiply 4 by 3
Answer:
There are 12 boys in Ms. Stell's World History Class.
Step-by-step explanation:
The ratio we are given is 5:4.
*5 is the simplified version of 15
*4 is the simplified version of x (total number of boys)
The first thing we need to do is find the number that gives us the total number of girls (15)
5*3 = 15.
Now we do that for the 4.
[tex]\frac{5*3}{4*3}[/tex] = [tex]\frac{15}{12}[/tex]
The answer should be 15:12
Best of Luck!
The simple interest formula is 1=Prt. The P represents the principal.The principal is____
-the percent interest for his year
-the rate
-the amount of money invested
-the percent proportion
Answer:
amount of money invested
Step-by-step explanation:
Hope it helps
How many groups of 12 day are in 1 week?
Answer:
none
Step-by-step explanation:
because its an impossible.
solve 2x < 10 and plz explain plz .
Answer:
x < 5
Step-by-step explanation:
You can solve an inequality much like you would solve a normal equation.
There are 2x on the left side of the inequality, so divide both sides by two to find what x equals:
2x < 10
(2x)/2 < (10)/2
1x < 5
x < 5
The Rayhills are buying new windows for their house. The company installs the new windows for $2,800. The total cost for buying the windows and having them installed is $6,484.00. If the Rayhills pay $230 25 per
window, how many windows did they buy?
How many windows did they buy?
windows _
PLEASE HELP PLEASE
Answer:16
Step-by-step explanation:6484.00-2800 for installation ends up equaling $3684.00
The you divide that answer by $230.25
That equals 16:The answer is 16 windows
PLEASE HELP AND CHECK PHOTO!!
Answer:
Step-by-step explanation:
21/7 = x/4
84=7x
x=12
3:1 is your ratio
I need help urgently!
What is the solution of the system? Use substitution.
−4y − 3x = −11
x − 2y = 17
What are 3 isosceles triangles?
Write
in simplest form.
3/6
Write the decimal 0.68 as a fraction in simplest form.
Answer:
17/25
Step-by-step explanation:
First put it into fraction form: 68/100
Simplify in no particular order just make sure that what you do to the top, you do to the bottom: 68÷2=34 100÷2=50
Simplify as many times needed: 34/50 34÷2=17 50÷2=25
You have your answer! 17/25
The fraction in the simplest form of the decimal 0.68 is 17 /25.
The decimal form is 0.68. We are told to convert to the fraction form in it simplest form. Therefore,
0.68 = 68 / 100 = 17 / 25
The logic behind it is moving the decimal 2 points forward . This beget 2 zero's in the denominator. Moving the decimal 2 points forward makes 0.68 to become 68 and the denominator takes 2 zero's which makes it the same as 68 / 100. When we reduce it we get 17 /25.
read more: https://brainly.com/question/15922875?referrer=searchResults
Which line is the line of best fit in the scatter plot below?
Answer:
B. Line A
Step-by-step explanation:
Line of best fit refers to a line through a scatter plot of data points that best expresses the relationship between those points.
All the other lines don't have any plots pointed, but line A does
When x= -1, what is the value of y?
Answer:You need to give a equation first.
Step-by-step explanation:Equation please!
two perpendicular lines intersect at the point (2,3). One line has a y-intercept of (0,5). Which of the following is the equation of the other line?
Answer:
The slope of the line is m=−1.
The equation of the line in the slope-intercept form is y=−x+5.
The equation of the line in the point-slope form is y−3=−(x−2).
The equation of the line in the point-slope form is y−5=−x.
The general equation of the line is x+y−5=0.
Which expression is the factored form of 2/3x+4
A) 2/3 (x+6)
B) 1/3 (2x+6)
C) 2/3 (x+4)
D) 2/3 (x+12)
Answer:
A
Step-by-step explanation:
2/3x + 4 = 2/3 (x + 4/(2/3)) = 2/3 (x + 6)
Topic: Algebraic equations + factorisation
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
Id really appreciate u if u answer this for em
solve 8x +5/2= 13.... please solve this
x = 21/16
Hope I helped
Answer:
21/16=x
Step-by-step explanation:
[tex]8x+\frac{5}{2} =13\\2(8x+\frac{5}{2} =13)\\16x+5=26\\16x=21\\x=\frac{21}{16}[/tex]
Hope this helps ;D