Answers
Answer:
Step-by-step explanation:
b+3b-3b²-2a
(4)+3(4)-3(4)²-2(2)
4+12-48-4
-36
Related Questions
Container A and Container B have leaks. Container A has 800 ml of water, and is leaking 6 mil per minute. Container B has 1,000 ml, and is leaking 10 mil per minute. Write and equation that would show how many minutes, m, it take for the two containers to have the same amount of water.
Answers
Answer:
50 minutes (I think)
Step-by-step explanation:
A= 800 - 6m
B = 1000 - 10m
800 - 6m = 1000 - 10m
4m = 200
50 = m
Why do you think it is important to graph certain values?
Send help asap (´༎ຶོρ༎ຶོ`)
Answers
Graphs aren't mandatory, but they may help visual learners see why an equation works a certain way. Also, they are a visual tool to quickly find a solution to a problem. Furthermore, they help with presentations to quickly convey an idea to someone (who may not be well versed in mathematics).
For example, if you save $10 a week and already have $50 in a savings account, then the equation you graph is y = 10x+50. Here x is the number of weeks and y is the amount saved.
Now let's say you want to find out how many weeks it would take to have $90 total. You could use guess and check to get the answer. Or you could use algebra and the substitution property. The visual way would be to graph y = 10x+50 and y = 90 together to note how the two lines intersect at (4, 90) to indicate it will take x = 4 weeks to have y = 90 total.
convert 7yd 2ft = ____ft
Answers
Answer:
23 feet
Step-by-step explanation:
1 yard = 3 feet, so 7 yards is 21 feet, plus 2 is 23 feet.
-4x - 5y = 3
4x+8y=-24
Answers
Answer:
damm this looks hella hard
Step-by-step explanation:
Answer:y=-7, x=8
Step-by-step explanation:add two equations together, 4x+-4x and -5y + 8y, and so 3y=-21, and you get y and go on from there, getting the answer.
Which equation can be used to solve for x in the diagram?
HELP ASAP!!
Answers
5x+3x=180
This is because a straight line is 180 degrees and and both 5x and 3x make a straight line of 180
A telescope is on sale for $126. This represents a 30% discount. What was the original price of the telescope?
Answers
Answer:
163.80 hope this helped
Step-by-step explanation:
Which graph represents the equation -5x+4y>-1?
Answers
======================================================
Explanation:
The inequality sign has an "or equal to", which means the boundary line will be solid. We can rule out choices B and C because they have dashed boundary lines.
A solid boundary line means that points on the boundary are part of the solution set.
Now let's see what happens when we plug in a point like (x,y) = (4,0). This will tell us how to shade the blue region.
[tex]-5x + 4y \ge -1 \\\\-5(4) + 4(0) \ge -1 \\\\-20 \ge -1 \\\\[/tex]
This is false because -20 is not larger than -1. It's the other way around.
This tells us the point (4,0) is not in the blue shaded region, and it's not on the boundary line either. We can rule out choice A because of this.
The only thing left is choice D, which is the final answer. I recommend plugging a point from this region into the inequality to confirm we have a true statement.
A club has four officials : president, vice-president, secretary, and treasurer. If a member cannot hold more than one office, in how many ways can the officials be elected if the club has - (12 members) *
Answers
Answer:
votes
Step-by-step explanation:
Question is: Andre solved an equation, but when he checked his answer he saw his solution was incorrect. He knows he made a mistake, but can’t find it. Where is andres mistake and what is the solution to the equation?
Answers
Answer:
-1=x He messed up on the third step.
Step-by-step explanation:
I worked out the equation and found that when he switched -6x over to -4 he did not change the symbol. So instead of 6+4 he did 4-6. I finished the equation and got -1
A number x is less than 8 or at least 4.
Answers
Answer:
8>x≥4
Step-by-step explanation:
x cannot be greater than 8 but is greater than or equal to 4
What ratio will have a trail with 7:2
Answers
Answer:
7/2
Step-by-step explanation:
Alicia has been putting her money from work into her savings account. The equation f(x)=13x+100 can be used to represent the increase of money to her savings account. Find f(18).
Answers
Answer:
f(18)=334
Step-by-step explanation:
f(x)=13x+100f(18) = 13(18)+100f(18)=234+100f(18)=334If the transformation was a rotation, tiffany can or cannot be certain the trapezoids are congruent?
Answers
Answer: Tiffany can be certain the trapezoids are congruent.
Step-by-step explanation: Two figures are congruent when their corresponding angles are equal and they have the same shape and size.
A figure can go thorugh 3 types of transformations:
Rotation: the figure is turned around a fixed point;Reflection: is created by fliping over the figure over a line;Translation: move the figure to another location, without changing its size;As long the figure doesn't change its size or shape, it doesn't matter if it's rotated, reflected or translated, they will be congruent.
When the trapezoid was rotated creating another one, the two shapes didn't change its size or shape, so Tiffany can be certain they are congruent.
Determine the constant of proportionality in the situation below.
Seven water bottles cost $14.28
Answers
Do division 14.28 divided by 7 = 2.04 :DStep-by-step explanation:
The point slope form of a line with a slope of 2 through (1, 4) is y – 4 = 2(x – 1).
Group of answer choices
True
False
Answers
Answer:
TRUE
Step-by-step explanation:
y-4 = 2(x-1)
here, 4 is representing the y value and 1 is representing the x value.
And the slope is 2.
Keeley ordered 240 T-shirts to sell at the school carnival. She paid $3.20
per shirt, plus 5% of the total order for shipping. When she sells each T-
shirt at the carnival, she adds a 150% markup to the total price she paid for
the shirt (including the cost of shipping). What is the selling price of each T-
shirt?
Answers
Answer:
We have 200 shirts
Cost $2.80 each
plus a 5% charge for shipping.
Selling price
150% markup
Recall when we use percentages, we need to express them as decimals.
Michelle's cost for each shirt was
2.80 (1.05) = 2.94
The markup is
2.94 (1.50) = 4.41
The markup is added to the cost to get the final selling price.
2.94 + 4.41 = $7.35
Michelle will sell each shirt for $7.35.
Let’s reword the question to make it simpler to understand:
Keeley pays $3.20 per shirt + 5% for shipping.
She sells them at the carnival for 150% the price she paid.
First of all we should work out how much the 5% shipping cost Keeley.
If the shirts are $3.20 that means 10% is $0.32, to get 5% we divide that by 2. This means 5% is $0.16, therefore shipping is $0.16.
The total price Keeley pays per shirt is $3.20 + $0.16 = $3.36.
Now let’s find out 10% of $3.36, which is $0.336, then multiply that by 15 to get 150%:
5.04
Therefore Keeley sells each shirt for $5.04
Next week your math teacher is giving a chapter test.
The test will consist of 35 questions. Some problems
are worth 2 points and some problems are worth 4 points.
There are 20 questions worth 2 points. How many
problems of 4 points are on the test?
I
November 12: 4-1. Solving Page
2
Answers
Answer:
15
Step-by-step explanation:
35-20= 15
0.002 in standard form
Answers
Answer:
0.9
Step-by-step explanation:
im correct 100
Estimation helps you check your answer by seeing if the estimate is close to the result you got. ... Estimation is useful when finding actual products and solving real-world problems because if your actual answer is close or exactly what you had estimated your answer will most likely be correct.
Answers
Answer:
Estimation is useful when finding actual products and solving real-world problems because if your actual answer is close or exactly what you had estimated your answer will most likely be correct.
Answer:
nuggts
Step-by-step explanation:
1 1/4 hours is = how many minutes
Answers
Answer: 75 minutes
Step-by-step explanation:
Answer:
75 minutes
Step-by-step explanation:
1 hour= 60 minutes
1/4 of an hour= 25 minutes
1 1/4= 75 minutes
Hope this helped!
Select the table that represents a linear function. (Graph them if necessary)
Answers
Answer:
b
Step-by-step explanation:
ANSWER THIS PLEASEEEEES
Answers
Question 6 (2 points)
Use the graph to find the value of f(x) when x=1 for the function f(x)=x2-5.
Answers
What’s 0.2 repeating as a fraction?
Answers
Answer:
1/5
Step-by-step explanation:
Answer:
1/5 are you joking?
Step-by-step explanation:
HELP PLEASE will mark brainly
Answers
Answer:
.6 is more than 1/2
.34 is less than 1/2
.812 is more
.9 is more
.099 is less
Step-by-step explanation:
1/2 as a decimal is .5 so anything larger than it will be .51 or greater and anything less will be .49 or less
Answer:
.6 is more than 1/2
.34 is less than 1/2
.812 is more than 1/2
.9 is more than 1/2
0.99 is more than 1/2
Step-by-step explanation: What is 1/2? 0.5. Look at the tenths place. Is the tenth higher than 5 or less than 5? But here is a warning: If you are comparing 1/2 and 1.4, 1.4 is greater than 1/2 because 1/2 is less than 1.
help ASAP part 3/9
math
Answers
Answer:
Step-by-step explanation:
12-3y<27
-3y<15
divide by negative 3. note: when you divide by a negative, the inequality sign flips
y>-5
Q1.is the given value of the variable , s, a solution to the inequality?s > -2.25; s = -2.2
1.yes 2.no
Q2.which value of the variable is a solution of the inequality?t > -7
1. -9
2. -8
3. -7
4. -6
Answers
Answer:
1.Yes
Step-by-step explanation:
a window washer cleaned 28 windows in 4 hours. At this rate how many windows did he clean in 9 hours
Answers
Answer:
63
Step-by-step explanation:
28/4 = 7 windows per hour
7 × 9 = 63 windows in 9 hours
Write the equation y = 4x – 20 in Standard Form (AX + By = C) with integer coefficients
HELP ASAP PLEASE
Answers
=============================================
Work Shown:
y = 4x - 20
4x - 20 = y ...... swap both sides
4x = y + 20 ..... adding 20 to both sides
4x - y = 20 .... subtracting y from both sides
The equation is now in standard form (Ax+By = C) where,
A = 4B = -1C = 20write the equation of a line in slope-intercept form that has a slope of 2/3 and a y-intercept of (0,4)
Answers
Answer:
2/3+0x4=2/3
Step-by-step explanation: that was math right there
