Answer:
15a^2 -17a +4
5a x 3a = 15a^2 bc a times a makes it squared.
next, 5a x -1 = -5a
and then -4 x 3a = -12a
-5a -12a (bc they're like terms) = -17a
then, -4 x -1= 4 ( two negs cancel each other out)
I apologize for my mistake the first time
Solve for X: square root 2x power of 2 +5 = 2
A. plus and minus 1
B. square root 2
C. plus and minus 2
D. no solution
Write an equation of the line that is parallel to the y-axis and passes through the point (−3,1). Then determine whether the slope of the line is positive, negative, zero, or undefined.
Answer:
equation : x = -3
slope : undefined
Step-by-step explanation:
The equation says that it is parallel to y-axis, meaning all the x values are the same. the slope is undefined because of (HOY / VUX)
Solve the inequality. Graph the solution
Answer:
1. y > -3/5 and y < 7/5 Direction to graph 1 below.
2. r > 1 and r < 13/3 Direction to graph 2 below
Step-by-step explanation:
|5y - 2| + 5 > 0
Case 1 Positive || Case 2 Negative ||
5y - 2 + 5 > 0 -(5y - 2) + 5 > 0
5y +3 > 0 -5y + 2 +5 > 0
5y > -3 -5y + 7 > 0
y .> -3/5 -5y > -7
-y > -7/5
y < 7/5 y value negative, change sign
The graph 1: open circle at -3/5; close circle at 7/5; shade between these two numbers.
2. |8-3r|< 5
Case I Case II
8 - 3r < 5 -(8-3r) < 5
-3r < 5 - 8 -8 + 3r < 5
-3r < -3 3r < 5 + 8
-r < -3/3 3r < 13
r >1 r is negative, change r < 13/3
the direction of the sign
Graph 2: Open circle at 1; open circle at 13/3; shade between the two numbers.
Lucía makes braided key chains out of cotton cord. For every 8 feet of cotton cord she has, she can make 3 braided key chains. PART A Use a model to represent the relationship between the feet of cotton cord and the number of key chains. PART B Use the model to explain how to find the number of feet of cotton cord Lucia needs to make 5 key chains.
Lucía needs 13.33 feet of cotton.
Since Lucía makes braided key chains out of cotton cord, and for every 8 feet of cotton cord she has, she can make 3 braided key chains, to represent the relationship between the feet of cotton cord and the number of key chains and find the number of feet of cotton cord Lucia needs to make 5 key chains, the following calculations must be performed, through a cross multiplication:
8CC = 3KC 3 = 8 5 = X 5 x 8/3 = X 40/3 = X 13.33 = X
Therefore, Lucía needs 13.33 feet of cotton.
Learn more in https://brainly.com/question/13019339
Help please thank you!
If A : B = 5 : 8 and B : C = 4: 3, A : B : C =??
Answer:
A:B:C = 5:8:6
Step-by-step explanation:
You don't have to change A, you only have to change B and C in the second ratio given. First, B is 8 and secondly, B is 4. You can multiply 4 in the second ratio and make it 8, but, remember, always do the same change to the other side too. So, if you change the 4 to 8 by multiplying by 2, multiply 3, which is C, by 2 too. Then, you get B:C as 8:6. Lastly, you get the final answer as 5:8:6.
Can someone help me please ?
Answer:
=
Step-by-step explanation:
1. The square root of 4 is 2 because [tex]2^2[/tex] = 4.
2. The cube root of 8 is 2 because [tex]2^3 = 2* 2 * 2[/tex] = 8.
3. 2 and 2 are equal.
Therefore, the correct symbol is =.
find the missing side lengths. leave your answers as radicals in simplest form.
u=?
v=?
WILL MARK BRAINLIEST ANSWER
Answer:
v = 1
u = 2
Step-by-step explanation:
Given is a special right triangle with angle measures as follows:
90-60-30
The side lengths would be :
2x- x[tex]\sqrt{3}[/tex]-x
in the image it shows that the second side length (the one that sees angle measure 60) is [tex]\sqrt{3}[/tex] from this we can conclude x = 1 so:
v = 1 and
u = 2
you roll a standard die. you win $12 if you roll a six, $6 if you roll a one, and $0 if you roll anything else. what is the expected value of a single roll?
Answer:
$0
Step-by-step explanation:
The chance of winning money is 2/6 -> 1/3, and sense 2/3 is larger than 1/3, we can conclude the expected value of a single roll is $0.
(I may be doing this problem wrong as I don't have context for what you're currently working on, but I hope this helps. Have a nice day!)
Answer:
1 dollar
Step-by-step explanation:
Because if u roll a six it gives you six dollars so how many rolls you roll you get that amount of money. :)
I hope im right :D
mat.................................................
Answer: it should be B.
Step-by-step explanation:
Answer:
The answer is B. please let me know if I'm wrong.
Have a nice day/night!
Step-by-step explanation:
~King from 7 deadly sins~
What is the sum of the 3rd
prime number and the 2nd
square number?
Step-by-step explanation:
First 3 Prime Numbers are
2 , 3 , 5
Therefore, Sum of the square of these numbers will be
2^2 + 3^2 + 5^2
= 4 + 9 + 25
= 38
Hence the answer is 38
Hello there!
The third prime number is
[tex]5.[/tex]
The second square number is 4. Add them together and get 9 as your answer.
Now, what is a prime number? It's a number that has only 2 factors (1 and itself)
If you multiply a number times itself, you get a square number.
Hope this helps you!
~Just an emotional teen who listens to her favourite songs
[tex]Silent Nature[/tex]
PLEASE HELP ME WITH GEOMETRY 15 POINTS
After a 25% discount the price of a T shirt was $12 what was the price before the discount?
Answer:The price before the discount is $ 16The population last year is 5280Solution:B) After a 25% discount, the price of a T-shirt was $12.
Step-by-step explanation:G
Answer:
$16
Step-by-step explanation:
25% is equal to 1/4.
1/4 of 16 is 4.
so if you subtract 4 from 16, it equals 12.
have a lovely day <3
HELPP AND SHOW YOUR WORK!!!
4. −10(x − 3)
A) −15x + 30
B) −10x + 30
C) −15x + 35
D) −15x + 37
Answer:
B) [tex]-10x+30[/tex]
Step-by-step explanation:
You distribute:
-10 times X minus 3 ( -10*x-3)
Which gives you:
Answer: -10x+30
Hope this helps!
Answer:
-10x+30Step-by-step explanation:
[tex]\sf -10(x -3)[/tex]
[tex]\sf -10x-\left(-10\right)\times \:3[/tex]
[tex]\sf -10x+30[/tex]
Solve for x step by step: -4=v/20-5
Answer:
WALA PO AKONG ALAM SA MATH EHH HEHEH
Help please guys is this right?
Answer: Correct, are you dragging the line across?
There are 28 students in a class. 13 of the students are boys. Two students from the class are chosen at random. a) If the first person chosen is a boy, what is the probability that the second chosen is also a boy? Answer in fraction
Using the probability concept, it is found that there is a [tex]\frac{4}{9}[/tex] probability that the second chosen is also a boy.
A probability is the number of desired outcomes divided by the number of total outcomes.In this problem, supposing that the first person chosen is a boy:
There will be 27 students.Of those, 12 are going to be boys.Hence:
[tex]p = \frac{12}{27} = \frac{4}{9}[/tex]
There is a [tex]\frac{4}{9}[/tex] probability that the second chosen is also a boy.
To learn more about the probability concept, you can take a look at https://brainly.com/question/25967684
SOMEONE PLEASE HELP AND SHOW WORK i will give you brainliest!
Katy invests a total of $26,500 in two accounts. The first account earned a rate of return of 15% (after a year). However, the second account suffered a 8% loss in the same time period. At the end of one year, the total amount of money gained was $985.00. How much was invested into each account?
Answer:
Step-by-step explanation:
0.15x-0.08(26,500-x)=98.00
15x-212000+8x=98,500
23x+212000=98,500+212000
23x/23= 310500/23
x = 13500 (was invested in the account that gained 15% )
26500-13500=13000 (was invested in the account that lost 8%.)
Multiply out and simplify:
3(X-3) + 2(x-5)
Answer:
5x-19
Step-by-step explanation:
distribute first
3x-9+2x-10
add like terms
5x-19
Can someone help me with number 5 :((
100 points for right answer
Answer:
x=6
Step-by-step explanation:
Step 1: Cross-multiply.
x−3 / 5 = 6 /10
(x−3)*(10)=(6)*(5)
10x−30=30
Step 2: Add 30 to both sides.
10x−30+30=30+30
10x=60
Step 3: Divide both sides by 10.
10x 10 = 60 10
Answer:
hope it helps you................
Find the value of x.
No links please!
Answer:
Step-by-step explanation:
tan(26)=42/x hence x=42/tan(26)=86.113
answer question 7, please with steps
Answer:
Angles FVE, FVD, and EVD have V as a vertex
Step-by-step explanation:
If V is the vertex of an angle, it's the point of that angle. So, it wants every angle you can make where V is the point of it.
Answer:
All angles in question 7 have v as a vertex
Step-by-step explanation:
Vertex just means corner, so if v is the corner in the Angle then it has v as a vertex
Graph the linear equation.
3x - 2y = 6
Answer:
2x -2y -6 =0. ........
What is the x and y intercept of 2.5x+8y=240 please show your work.
Answer:
The x and y intercept are (96,30)
Step-by-step explanation:
8y=240-2.5x
y=240/8-2.5x/8
y=30-0.3125x
The y intercept=30
The x intercept=96 thus 30=0.3125x,x=30/0.3125
The US dollar can be exchanged for other types of currency in the world the exchange rate is always changing suppose one eruro is equivalent to two dollars
HELP DUE TODAY! PLS HELPP
1. 2. 5. 10. Euro
2. ? ? ? US dollars
Answer:
$2, $4, $10, $20
Step-by-step explanation:
1*2=2
2*2=4
5*2=10
10*2=20
If y = 132 when x =11, what is the value of y when x = 17?
Answer:
204
Step-by-step explanation:
What do I choose? PLEASE HELP!! Ill give brainlist, five stars and a thanks for whoever's answer is right. Please!!!!!
Answer:
6 3/4
Step-by-step explanation:
If Sarah uses 3/4 of ribbon to make one hair bow, you would need to multiply 3/4 by 9.
3/4 × 9 = 6 3/4
She will need 6 3/4 yards of ribbon.
Hope this helps! Brainliest would be really appreciated!
if you sold 60 cups of lemonade , how many cups of orange drink did you sell
Answer: 0, I think, hope this helps
Step-by-step explanation:
Answer:
you sold 40 cups of orange drink.
Step-by-step explanation:
60*2=120 (the cups of lemonade, multiplied by the cost equals how much you earned from lemonade.)
240-120=120 (how much you earned total, minus 120, how much you earned from lemonade, equals the remainder, how much total you earned for the oragne drinks. )
120/3=40 (the amount you earned for the orange drinks, divided by three, how much you earned for each, which equals 40. and equation would be
240=2x+3y
240=2(60)+3y
240=120+3y
240-120=120-120+3y
120=3y
120/3=3y/3
40=y
Hope this helps!
*HELP*
Which of the following best describes aspect ratio?
Group of answer choices
A computing error caused by switching two adjacent digits.
An average resulting from the multiplication of each component by a factor reflecting its importance.
An indicator, sign or measure of something.
The ratio of the width to the height of a television screen.
Answer:
: a ratio of one dimension to another: such as. a : the ratio of span to mean chord of an airfoil. b : the ratio of the width of a television or motion-picture image to its height.
Step-by-step explanation: