Answer:
75 % of 12 = (75 * 12 ) / 100 = 9 were sold
12 - 9 = 3 were thrown out
Step-by-step explanation:
Question 5
What is a value of b will cause 27x^2+ bx +3 = 0 to have one real solution?
Answer:
The values of b are [tex]\mathbf{b=\pm18}[/tex]
Step-by-step explanation:
We need to find the value of b will cause [tex]27x^2+ bx +3 = 0[/tex] to have one real solution.
If it has one real solution, the discriminant is zero.
The formula of discriminant is: [tex]b^2-4ac[/tex]
In our case: [tex]b^2-4ac=0[/tex]
We have a=27, b=b and c=3
Putting values to find b
[tex]b^2-4ac=0\\b^2-4(27)(3)=0\\b^2-324=0\\b^2=324\\Taking \ square root \ on \ both \ sides\\\sqrt{b^2}=\sqrt{324}\\b=\pm18[/tex]
So, the values of b are [tex]\mathbf{b=\pm18}[/tex]
Find an equation for the line perpendicular to the line 8x - 6y = -2 having the same y-intercept as - 6x + 2y = 4.
a painter can finish painting a house in 3 hour
Answer:
cool
Step-by-step explanation:
Evaluate the function g(t)=23t, when t = 30.
Question 2 options:
A 10
B 25
C 20
D 15
BRAINLIEST!!! (Please help)
In the diagram, assume that y= 7. Find x and z.
A)
<= 7 V3; 2= 14
B)
x = 14; 2= 7 V3
©
x= 7 V2; 2 = 14
D)
x = 14; 2= 7V2
Answer:
A
Step-by-step explanation:
- to find x we use tan 60 = x/7
- rearrange, tan60*7 = x, x = [tex]7\sqrt{3}[/tex]
- now you have two sides so you can use pythagoras to find z
y^2 + x^2 = z^2
z = [tex]\sqrt{(7\sqrt{3})^2 + (7)^2 }[/tex]
z = 14
HELP! I NEED THIS DONE IN ORDER TO PASS! Pain.
Answer:
i thi9nk its the 3rd one or the 1st one im sooooooooooooooo sorry if i gave you the wrong answer hope you pass
Step-by-step explanation:
A certain radio station plays classical music during 20% of its airtime. If the station is on air 24 hours a day, how many hours each day is the station playing classical music?
Answer:
4.8 hours
Step-by-step explanation:
20% of 24 hours is the product of the decimal form of 20% (which is 0.2) times 24.
The answer is:
0.2 * 24 = 4.8 hours which is the same as 4 hours and 48 minutes.
Find the sum of the first 5 terms of the infinite series: 8 + 18 + 28 +
A) 92 B) 54 C) 140 D) 198
Answer:
8 + 18+ 28+ 38+ 48= 140
Step-by-step explanation:
Answer:
Step-by-step explanation:
140
27 Which equation best represents the relationship between x and y in the graph?
А у 3х + 3
в у 3х - 1
суз
0 - 3x - 1
Answer:
Pls attach graph
Step-by-step explanation:
What percent of 25 is 23? *
Answer:
92%
Step-by-step explanation:
If you divide both parts by 25, the answer will be 92%
Hope this helps!
Alex made $28.74 for three hours of work at his job at the pet store. If he works a total of 40 hours in one week, how much money would he make before taxes are taken from his paycheck?
PLEASE HELP ME there’s a picture to show !!
If AOCD AJAL, then which of the following statements are true? Select True or False for each statement
Answer:
true
Step-by-step explanation:
Answer:
It's true bro
Step-by-step explanation:
very urgent
A construction worker drew a sketch he will use as he works.
Which statement is not true?
A. The distance from the ground to the pipe is 2.5 feet.
B. The distance between the pipe and the rope is 1 foot.
C. The distance between the ground and the rope is 5 feet.
D. The distance from the ground to the pipe is 1 foot less than the distance from the ground to the rope.
Answer:
wheres the word problem portion of the question
Step-by-step explanation:
tell me and I'll be happy to answer you
I WILL GIVE BRAINLIEST I PROMISE
Which graph could be used to show the situation described?
The temperature increases by 4 degrees every hour. Answer choices in picture
Answer:
I believe the answer would be the last box or the bottom right box
Step-by-step explanation:
Answer:
bottom right one
Step-by-step explanation:
took the unit test
Plz help I will mark branliest
The last one.
........
PLS HELP ME
Match each equation with a solution from the list of values.
Answer:
1 question. will be 2.3
2 question. 2.6
3 question. 9.2
Here some answers sry i can't answer all
Answer:
Read the following:
Step-by-step explanation:
1. 2.3
2. 2.6
3. 9.2
4 .6.6
5. 1 and 5/8
6. 24
7. 8/5
hope this helps :)
PLS HELP ASSAP whats 10,0000,0000,000 times 40,000,000
Answer:
40000000000000000000
Step-by-step explanation:
Answer:
4×10^19Step-by-step explanation:
1000000000000 = 10^1240000000 = 4×10^7Product of the two numbers above:
10^12 × 4*×10^7 = 4×10^19Find the greatest common factor of 12, 18, 26.
Answer:
2
Step-by-step explanation:
Answer:
The answer is 2. Hope this helps you out!
Step-by-step explanation:
The Smith family went to the theater
to see a movie. Adult tickets cost
$12 and child tickets cost $9. If they
spent $72 total and purchased 7
tickets, how many of each
were purchased
Answer:
3 adult tickets and 4 child tickets
Step-by-step explanation:
a + k = 7
a = 7 - k
12a + 9k = 72
12a + 9k = 72
12(7 - k) + 9k = 72
84 - 3k = 72
84 - 3k = 72
3k = 12
k = 4
a = 3
The number of adult tickets purchased is 3 and the number of child tickets purchased is 4.
Given that, adult tickets cost $12 and child tickets cost $9.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
If they spent $72 total and purchased 7 tickets.
Let the number of adult tickets be x, then the number of children tickets will be 7-x.
Now, 12x+9(7-x)=72
⇒ 12x+63-9x=72
⇒ 3x=72-63
⇒ 3x=9
⇒ x=3
So, 7-x=4
Therefore, the number of adult tickets purchased is 3 and the number of child tickets purchased is 4.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
Write the equation of a line for the graph:
Answer: y=1/3x-2
Step-by-step explanation:
To find the equation of the line, we need the slope and y-intercept. To find the slope, we can take any two points on the graph and use the formula [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]. To find the y-intercept, we find the point that crosses the y-axis. The two points on the graph are (0,-2) and (3,-1).
[tex]m=\frac{-1-(-2)}{3-0} =\frac{1}{3}[/tex]
Now, we know the slope is 1/3.
The graph crosses the y-axis at (0,-2). Therefore the y-intercept is -2. This tells us that the equation is y=1/3x-2.
H. C. F of 20,40 and 50
Answer:
10
Step-by-step explanation:
HCF of 20, 40 & 50:
20: 1, 2, 4, 5, 10, 20
40: 1, 2, 4, 5, 8, 10, 20, 40
50: 1, 2, 5, 10, 25, 50
HCF: 10
Topic: HCF and LCM
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
please help! im begging!
Don't trust me but it's probably the first one. Just using context clues
help I have asked this question 5 times help help plz I will give u 5 stars plz
Starting at sea level, a submarine descended at a constant rate to a depth of −3/4 mile relative to sea level in 5 minutes.
What was the submarine's depth relative to sea level after the first minute?
Enter your answer in the box as a fraction in simplest form.
Answer:
awooooooogaaaaaaaaaa
25 points!!!Let |u| = 10 at an angle of 45° and |v| = 13 at an angle of 150°, and w = u + v. What is the magnitude and direction angle of w?
|w| = 9.4; θ = 72.9°
|w| = 9.4; θ = 107.1°
|w| = 14.2; θ = 72.9°
|w| = 14.2; θ = 107.1°
Answer:
D. |w| = 14.2; θ = 107.1°
Step-by-step explanation:
EDGE 2020
What is the equation for a line that has a slope of 3 and passes through (-1, 9)
Answer:
the answer is y=3x+9 if you are looking for it to be in slope intercept form
Mr. Simpson’s faucet is leaking. It leaks 3/4 cup of water every 1/2 hour
Answer:
3/2 or 1.5 each hour
Step-by-step explanation:
3/4/1/2
=6/4
=3/2
=1.5
or
3/4*2=
1.5
How do we do HCF and LCM
please tell
i will mark brainly for the one who answers the first
pleaseeee
For HCF you can list the factors of the numbers and see which is the highest factor that they have in common. For LCM you list put the multiples and find the lowest one they have in common
Is -51/5 rational or irational
Answer:
Rational
Step-by-step explanation:
Answer:
Step-by-step explanation:
its written as a ratio of two integers, so its a rational number.
answers as soon as possible thanks
Answer: You need to add the question
Step-by-step explanation:
to get the answer I cant see the question that well
what is the slope of the line that passes through the points (-5,8) and (-5,-2)
Answer:
Undefined
Step-by-step explanation:
