Answers
Solving for each equation:
A: True.
[tex]\frac{n}{2} +3 *4 = \frac{n}{2}+12\\\\\frac{n}{2} + 12 = \frac{n}{2} + 12[/tex]
B: False.
[tex]\frac{1}{3}z+\frac{2}{3}z * 9 = 9z\\\\\frac{1}{3} z+6z = 9z[/tex]
C: True, given that y = 1
[tex]-8y +4.3y + 3.7 = 0\\\\-3.7y = -3.7[/tex]
D: True, given that b = 6.66667
[tex]12-1.8b+1.8b=1.8b\\12 = 1.8b[/tex]
E: True.
[tex]\frac{m}{8} + 7(\frac{m}{8} ) =m\\\\\frac{m}{8} + (\frac{7m}{8} )= m\\\\\\\frac{8m}{8} = m\\[/tex]
Related Questions
Question 1:
Which ordered pairs are a solution to the equation y=2x+6
Select all that apply
(0,6)
(-1,4)
(-1,-4)
(3,12)
Question 2:
Which ordered pairs are a solution to the equation y=4-2x
Select all that apply
(-1,2)
(0,4)
(-1,6)
(1,6)
Answers
Answer:
1.
(0,6)
(-1,6)
(3,12)
2.
(0,4)
(-1,6)
Step-by-step explanation:
The rule for the first question is y = 2x + 6
We can substitute the numbers for each equation.
6 = 2(0) + 6
6 = 6
So (0,6) is correct.
4 = 2(-1) + 6
4 = 4
So (-1,4) is correct as well.
-4 = 2(-1) + 6
-4 ≠ 4
(-1,-4) is incorrect.
12 = 2(3) + 6
12 = 12
So this answer is correct as well.
The second question‘s rule is that y = 4 - 2x. So we can substitute the numbers.
2 = 4 - 2(-1)
2 ≠ 6
This is incorrect.
4 = 4 - 2(0)
4 = 4
This answer is correct.
6 = 4 - 2(-1)
6 = 6
This answer is correct as well.
6 = 4 - 2(1)
6 ≠ 2
This answer is incorrect as well.
Raheem buys 13 identical T-shirts and 21 identical polo shirts for £494.14. The cost of the T-shirts is £8.95. Find the cost of a polo shirt.
Answers
Answer:
17.99
Step-by-step explanation:
8.95x13=116.35
494.14-116.35=377.79/21=17.99
Hope this helped
Element X decays radioactively with a half life of 14 minutes. If there are 760 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 11 grams?
Answers
Answer:
85.5 minutes
Step-by-step explanation:
The amount of an element that will remain after time t can be expressed as a function of initial amount N0, time t, and half life th as;
Nt = N0 × e^(-λt)
Where;
Decay constant λ = ln(2)/th, substituting into the equation;
Nt = N0 × e^(-ln(2)t/th)
We need to make t the subject of formula;
Nt/N0 = e^(-ln(2)t/th)
ln(Nt/N0) = -ln(2)t/th
t = ln(Nt/N0) ÷ -ln(2)/th
Given;
Initial amount N0 = 760g
Final amount Nt = 11 g
Half life th = 14 minutes
the nearest tenth of a minute, would it take the element to decay to 11 grams can be derived using the formula;
t = ln(Nt/N0) ÷ -ln(2)/th
Substituting the given values;
t = ln(11/760) ÷ -ln(2)/14
t = 85.5 minutes
Which function represents f(x)=3^x ?
Answers
Answer:
The answer would be function 2.
Step-by-step explanation:
I found this out by plugging in 0 into x. What I got then was one. So I found that function 2 has a spot on 0, 1. that is how I got the answer.
Brainliest would be appreciated.
Answer:
it is function 2
i plugged it in on desmos graph
which is greater 27 or -49
Answers
Answer:
27
Step-by-step explanation:
it's a lager number so it's greater
Answer:
27
Step-by-step explanation:
Positive is always greater than a negative.
How to change miles per hour to feet per second?
Answers
Answer:
1 mph = 1.46666667 fps
Vito is a pitcher on his baseball team. This season he has allowed an average of 0.8 hits per inning pitched. If Vito pitcher 160 innings this season how many hits did he allow?
Answers
Answer:
200
Step-by-step explanation:
.8x = 160
What is the correct answer
Answers
By the theorem,
48/20 = 36/x
x = 36(20)/48 =12(3)(4)(5)/((4)(12)) = 15
Answer: 15, second choice
hope this help
Which function has a vertex at (2, -9)?
f(x) = -(x - 3)2
f(x) = (x + 8)
f(x) = (x - 5)(x + 1)
f(x) = -(x - 1)(x - 5)
Answers
Answer:
C
Step-by-step explanation:
The first two are not parabola at all and the last one when graphed gives you a vertex of (3,9). The correct answer that gives you the vertex if (2,-9).
Hope this helps!
A point is chosen randomly on AD. What is the probability that the point is on BC?
Answers
In 1925, the population of a city was 90,000. Its
population increases by 2.1% per year. What will the population be in 2020?
Answers
Answer:
17,955,000
Step-by-step explanation:
Answer:
闭嘴黑鬼
Step-by-step explanation:
Raymond and Daniel were in a pie eating contest. Daniel ate five times as many pies as Raymond. Together they ate
24 pies in 30 minutes. How many pies did each one eat?
steps ?
Answers
Answer:
Raymond ate 5
Daniel ate 25
Step-by-step explanation:
x= Raymond
5x= Daniel because he ate 5 times as many as Raymond
x+5x=30
add like terms
6x=30
divide by 6
x=5 Raymond
5*5=25
25=Daniel
what is the answer to 2(x+2)-3x >-1 ?
Answers
-x+4>-1
-x>-1-4
-x>-5
X<-5/-1
Hence x<5
Step-by-step explanation:
First open the bracket
2x+4-3x>-1
collect like terms
2x-3x>-1-4
-x>-5
dividing by -, the greater sign therefore changes to less than
-x/- <-5/-
=x<5
answer is x<5
Solve this equation for x. Round your answer to
the nearest hundredth.
0 = In(x + 7)
Answers
Answer:
x = -6
Step-by-step explanation:
0 = In(x + 7)
x + 7 = e⁰
x + 7 = 1
x = 1 - 7
x = -6
Steps to solve:
0 = In(x + 7)
~Log definition
e^0 = x + 7
~Simplify
1 = x + 7
~Solve for x
1 - 7 = x + 7 - 7
-6 = x
Therefore, the answer is x = -6
Best of Luck!
50 POINTS HELP ASAP
Answers
Answer:
its 10 points not 50
Step-by-step explanation:
You can buy 3 apples at the Quick Market for $1.35. You can buy 5 of the same apples at Stop and Save for
$1.00. Which place is the better buy?
Answers
Answer:
stop and save
Step-by-step explanation:
The reason for this is because if you can buy 5 apples for 1 dollar so that is 20 cents each but the other one is 45 cents for 1 apple at quick market
Answer:
stop and save because you can get two additional apples paying only 95 cents
Step-by-step explanation:
3x1.35= 4.05
5x1=5
Find the Slope. (Slopes are incredibly difficult for me at the time could you help??)
Answers
Answer:
[tex]\frac{rise}{run} =\frac{4}{1} =4[/tex]
Step-by-step explanation:
The polynomial f(x) is written in factored form:
f(x) = (x - 3)(x + 8)(x - 11)
What are the zeros of the polynomial function?
O x = 3, x = 8, x = 11
O x = 3, x = -8, x = 11
OX=-3, x = 8, X = -11
x = -3, x = 3, x = -8, x = 8, x= -11, x = 11
Answers
Answer:
F(x)=(x-3)(x+8)(x-11)=0
(x-3)=0, (x+8)=0, (x-11)=0
X=3
X=-8
X=11
NEED HELP PLEASE: Four shaded circles, each of radius 4 feet, are packed in a square as shown. Suppose you drop a coin onto the square at random. What is the probability that the center of the coin lands in a non-shaded area?
Answers
Answer:
16.0%
Step-by-step explanation:
PLS HELP....I WILL GIVE YOU BRAINLIEST!!!!!!!!!!
Express as a percent:
1/6:
1/3:
2/3:
5/6:
Answers
Look at the attached picture
Hope it will help you
Good luck on your assignment
jina works mowing lawns and babysitting she earns $7.90 an hour for mowing $7.40 an hour for babysitting how much will she earn for 1 hours of mowing and 5 hours of babysitting
Answers
Answer:
in total she will make $44.90.
Step-by-step explanation:
7.40(5)+7.90(1)=$44.90
7.40 • 5 = $37 For Baby Sitting.
Therefore $7.90 + $37 = $44.90 Is your answer
What is experimental probability that this spinner lands on red?
Answers
Answer:
I think its 10
Step-by-step explanation:
Add all three then divide by three.
Answer:
There is a 20% of it landing on red
Step-by-step explanation:
add 6,9,15 to get 30 the 6/30=0.2 and multiply by 100
You can check you work by following the same process
please mark me as the brainliest
thank you
20 points if you can help me with problem 2.
Answers
Answer:
3, 4, 5, 6, 7, 9, 10, 11
Step-by-step explanation:
Actually it's 10 points but whatever:
I number the figures like this:
1, 2, 3
4, 5, 6
7, 8, 9
3, 4, 5, 6, 7, 9, 10, 11 work because if you cut them out and glued the sides correctly, it will become a cube.
A flagpole casts a shadow that is 25 feet long. A signpost near the flagpole is 3 feet tall, and it casts a shadow that is 5 feet long. How tall is the flagpole?
Answers
Answer:
The ratio of shadow should be kept, then we have: x/25 = 3/5
=> x = 25 x 3/5 = 15
=> The flagpole is tall 15 feet
Hope this helps!
:)
Answer:
15 feet
Step-by-step explanation:
Length : shadow
3 : 5
X : 25
X/25 = 3/5
X = 25 × 3/5
X = 15
What values of a and b make the equation true?
V648 =V2^a 3^b
1. a = 3, b = 2
2. a = 2, b = 3
3. a = 3, b = 4
4. a = 4, b = 3
Answers
Answer:
3
Step-by-step explanation:
[tex]\sqrt{648} =\sqrt{2 * 2 * 2 * 3 * 3 * 3 * 3} \\\\=\sqrt{2^{3}*3^{4}}[/tex]
a = 3 & b =4
Please help will be greatly appreciated
Answers
Answer:
Step-by-step explanation:
Hands you please help
Help I will mark BRAINLIEST if correct please help
Answers
Answer:
[tex](-\frac{1}{4}, \frac{5}{8} )[/tex]
Step-by-step explanation:
If you label the points on the axes, it will show that point K is actually on [tex]\frac{5}{8}[/tex] not [tex]\frac{3}{4}[/tex]
Which of the following measures of central tendency describe the distribution of a data set?
range, interquartile range, and standard deviation
mean, median, and mode
mean, range, and interquartile range
Answers
Answer:
Mean, Median, and Mode
Step-by-step explanation:These measures indicate where most values in a distribution fall and are also referred to as the central location of a distribution.
Answer:
mean, median, and mode
Step-by-step explanation:
What is the slope of the graph?
Answers
Answer:
1
Step-by-step explanation:
Slope is essentially just the change in y divided by the change in x. "Change in y" just means the difference in the y-coordinates, while "change in x" means the difference in the x-coordinates.
Let's choose any two points: (-1, 0) and (0, 1). The difference in the y-coordinates is: 1 - 0 = 1. The difference in the x-coordinates is: 0 - (-1) = 1. Divide these:
1 ÷ 1 = 1
Thus, the slope is 1.
We can use the points (-1, 0) and (0, 1) to solve.
Slope formula: y2-y1/x2-x1
= 1-0/0-(-1)
= 1/1
= 1
Best of Luck!
PLS I MARK BRAINLIEST I ONLY HAVE 30 MINS LEFT
You notice that another cupboard door is in the shape of a square that is divided into two isosceles triangles. You measure the height of the cupboard to be 16 "2" /"3" inches. What is the area of one of the triangles shown on the face of the cupboard door? Show your work AND I NEED TO KNOW HOW YOU DID IT IT SAYS SHOWYOUR WORK
