simplify the product (2u-4)(u^2+2u-7) pls don't just give me the answer bc i know the answer but can you pls explain how you got the answer
Answer:
2 • (u - 2) • (u2 + 2u - 7)
Step-by-step explanation:
2.1 Pull out like factors :
2u - 4 = 2 • (u - 2)
Trying to factor by splitting the middle term
2.2 Factoring u2 + 2u - 7
The first term is, u2 its coefficient is 1 .
The middle term is, +2u its coefficient is 2 .
The last term, "the constant", is -7
Step 1: Multiply the coefficient of the first term by the constant 1 • -7 = -7
Step 2: Find two factors of -7 whose sum equals the coefficient of the middle term, which is 2 .
-7 + 1 = -6
-1 + 7 = 6
(REAL ANSWERS ONLY) FOR BRAINLIEST!
A trip is going to cost $0.25
per mile in gas plus
$7 for toll charges. Write an algebraic
expression to represent the total cost of
traveling x miles plus tolls. Then use this
expression to find the total cost to go on a 300
mile trip.
Calculate your miles per gallon
Fill up your gas tank and set the trip odometer button on the instrument panel to zero, then drive normally until it’s time to stop for gas again. When you next refuel, note the trip odometer reading to get the number of miles you’ve driven. Alternatively, you can get this figure by writing down the overall odometer reading the first time you fill up and again the second time, with the difference being your miles driven. Next, divide the mileage by the number of gallons of fuel you pumped on the second gas stop to get your miles per gallon.
What is the radius of the red circle? What is the radius of the blue circle?
Red Circle:
First find the diameter
We can do that by counting the squares
Diameter:4
The radius is half of the diameter
4/2=2
Radius of the Red Circles:2
Blue Circle:
Diameter: 2
2/2=1
Radius of the Blue Circle:1
Aisha has a piece of string that she cuts into smaller pieces. This line plot shows the length of each piece. Juan has a piece of string that is 12 as long as Aisha's seventh-longest piece. (Note: The problem states the seventh-longest piece, not the seventh-longest length.) How long is Juan's piece of string?
Answer:
2 5/8
Step-by-step explanation:
Xerxes is selling cups of lemonade. He is selling regular and pink lemonade in 3 sizes: small, medium, and large. The table displays today’s sales results:
Based upon these results, how many medium regular lemonades should Xerxes sell if he expects 640 customers tomorrow?
112 medium regular lemonades
96 medium regular lemonades
80 medium regular lemonades
128 medium regular lemonades
Find (pink lemonade).
[tex]\frac{17}{40} \frac{7}{20} \frac{7}{20} \frac{3}{10}[/tex]
Part 1
Add up the values in the table: 90+36+54+45+63+72 = 360
This means 360 total drinks were sold. Of that total, 54 were medium regular.
The percentage of medium regular is 54/360 = 0.15 = 15%
Apply this percentage to the 640 customers he plans to sell to
15% of 640 = 0.15*640 = 96
Answer: 96============================================
Part 2
It sounds like your teacher wants you to find the probability of picking pink lemonade. The table says that 36 small, 45 medium, and 72 large pink lemonades were sold. That means 36+45+72 = 153 pink lemonades were sold out of the 360 total
153/360 = 0.425
Then go through each answer choice to note that 17/40 = 0.425 as well
Therefore, 153/360 = 17/40
Answer: 17/40
Let f(x)= log (x^2-2x) and g(x)=x/x-1. Which expression represents (fog)(x)
Answer: third one
Log(x^2-2x)/log(x^2-2x)-1
Step-by-step explanation:
Answer:
it is C
Step-by-step explanation:
i did the diagnostic
Find the value of Y. Please help. Will give Brainlyest if your correct.
Answer:
Step-by-step explanation:
by intersecting chord theorem, 27*y = 13*17
y=13*17/27=8.185=8.19
Explain two different ways that you can solve the exponential equation 3+2=8 .
Answer:
i hope u get it right
Step-by-step explanation:
1 Step 1: Replace the inequality with an equal sign.
2 Step 2: With exponents, use logarithms.
3 Step 3: Solve.
4 Step 4: Evaluate.
5 Step 5: Determine the domain.
6 Step 6: (an optional step) Plot.
7 Step 1: Replace the inequality with an equal sign.
8 Step 2: With a logarithm, raise to the power of the base.
Natalie can bike 10 kilometers per hour faster than Aaron. By the time
Natalie travels 60 kilometers, Aaron has gone 40 kilometers. Find the speed
of Natalie and Aaron.
The ratio of a pair of corresponding sides in two similar triangles is 5:3. The area of the smaller triangle is 108 in2. What is the area of the larger triangle?
Answer:
The hypotenuse of a right triangle is always the side opposite the right angle. It is the ... The other two sides are called the opposite and adjacent sides. ... functions—sine, cosine, and tangent—which are defined using the words hypotenuse, opposite, and adjacent. ... Side ratios in right triangles as a function of the angles.
Step-by-step explanation:
Ron randomly pulls a pen out of a box that contains 1 red, 2 black, and 3 blue pens. He does
this 4 times, replacing the pen each time, but pulls out a blue pen only 1 time. Ron concludes
that the observed frequency of pulling a blue pen will eventually be closer to the expected
frequency based on the theoretical probability of pulling a blue pen. Which reasoning best
supports his conclusion?
Is it A, B, C, or D
PLEASE HELP ME :)
Answer: A
Step-by-step explanation:
I did this test before : )
The theoretical probability of pulling a blue pen based on the expected frequency will get closer to 1/2 as the no. of trials increases.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
The first thing is to define each of the probabilities,
Theoretical probability is defined as a proportion that expresses the ways to be successful in the total events of an experiment.
Experimental probability is defined as the proportion of the proposed result for the number of experimental attempts.
Based on the above explanation, the reason that best supports is that; the more the experiment is repeated, the closer the experimental probability gets to the theoretical one, However, as the number of attempts increases, it tends to go more to what theoretically is what would happen.
The more experiments that are done, the more the theoretical attempts trend is marked
Hence, the Theoretical probability of pulling a blue pen based on the expected frequency will get closer to 1/2 as the no. of trials increases.
Learn more about probability here;
https://brainly.com/question/11234923
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pls help omg i will give brainliest
Answer:
The actual height of 1 story is 15 feet.
Step-by-step explanation:
The given scale is
2 inches = 25 ft
We know the 10 story building has a height of 12 inches, but we need the actual height of 1, that is, the height of 1 story in feet.
Let's divide to find the number of inches per story
There are 1.2 inches per story.
Now, we know , let's use the rule of three
Therefore, the actual height of 1 story is 15 feet.
Answer:
15 ft
Step-by-step explanation:
2 inches = 25 ft
12 inches = x ft
2 x 6 = 12
25 x 6 = 150
150 ft = 10 stories
150/10 = 15
Each story = 15ft
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
~ PLEASE HELP ~
Determine the mKL in degrees.
A) 108*
B) 51*
C) 58*
D) 70*
Answer:
Step-by-step explanation:
d
HELP ASAP ! WORK A LOT POINTS!
Answer:
y=2x-8
Step-by-step explanation:
Can some please help me with this question
9514 1404 393
Answer:
423 in²
Step-by-step explanation:
The area is given by the formula ...
A = 1/2·xy·sin(W)
A = 1/2(32 in)(96 in)sin(16°) ≈ 423.379 in²
The area of ∆WXY is about 423 square inches.
What is a decimal that is equivalent to the fraction
7/100 Enter the answer in the box.
Answer:
0.07
Step-by-step explanation:
Answer:
0.07
Step-by-step explanation:
A fraction is a division problem so when you divide 7 ÷ 100 the 100 will move the decimal two spaces back making it 0.07.
Have a great day!
Let's try this again also bots dont respond.
Jonathon kicks a kickball into the air. The height of the ball in feet can be determined using the equation h(t) = 32t - 16t^2 where t is time in seconds. To determine how long the ball is in the air, he would need to calculate what? minimum maximum y-intercept x-intercepts
Which equation is a step in finding the solution to how long the ball is in the air? h(0)=32(0)-16(0)^2
0=16t(2-t)
h(t)=-16(t-1)^2+16
h(3)=32(3)-16(3)^2
Which of the following answer choices would satisfy the inequality below? -2.74 < x < -2.35
Answer: -3pi/4
Step-by-step explanation:
-3pi/4 = -2.35619
-2.35619 is closer to 0 making it greater than -2.74 but less than -2.35 bc -2.35 is closer to 0 than -2.35619 is so.... (the greater the negative number, the less value it has)
-2.74 < -3pi/4 < -2.35
hope this helps ^_^
i need some help with this please
Answer:
[tex]12 \times 15 - 8 \times 2 = 180 - 16 = 164[/tex]
An airplane flies 285 miles in 5 hours. What is its average speed in miles per hour?
PLEASE HELP ASAP!!!!!!
Answer:
57
Step-by-step explanation:
Speed = Distance / Time
distance = 285
time = 5 hours
285/5 = 57
What is the lateral surface area of the triangular pyramid shown? Round to the nearest tenth.
A triangular pyramid. The base has a base of 12 and height of 12. A side has a base of 12 and height of 7.8. The other 2 sides have a base of 10 and height of 8.
[Not drawn to scale]
126.8
173.6
206.8
253.6
Answer:
aasssss
Step-by-step explanation:
aaaxxxxxxxxx
A is the
okndsaxknfj ejfkl jfkj jlk jalkfjkfjkljfklj j
Solve x^2+ 4x =15
thxssss
Answer:
x=3/5
Step-by-step explanation:
x^2+4x=5
x+4x=5x
5x+2=5
-2 -2
5x=3
divide 5 from each side
5/5x=3/5
x=3/5
AINT GOT NO HELP TODAY SO SAD NOW
Answer:
See below for answers (in bold) and explanations
Step-by-step explanation:
8) There is a strong negative correlation between variables x and y, making option B, 0.8, the correct answer. If it were 1.0, we would have no residuals.
7) y=x+2 is the best equation that represents the line of best fit because the residuals are very small.
5) Notice how in option B the line does not overlap any of the points in the scatterplot. This is not the correct line of best fit while the other options are.
4) A and C both show a positive correlation while D is negative and B has no correlation between variables x and y.
2) If x represents how much fertilizer in ounces she adds to the soil and y represents the predicted value of the number of blooms each rose bush has, then Olivia will only have 4 blooms when she adds no fertilizer because:
4=1.345x+4
0=1.345x
0=x
Jamal will cut a piece of wood that is 4 1/3 feet long into 1/6 foot sections. How many sections will result?
Answer:
26 sections
Step-by-step explanation:
4 1/3 ÷ 1/6 = 26
Jeff is 6 feet 2 inches tall. Give Jeff's height in inches
Answer:
74 inches
Step-by-step explanation:
1ft = 12 inches
6* 12 = 72
72 + 2 = 74 inches
1 over 2z = 3 over 4. Which of the following equals z in this equation?
3 over 8
2 over 3
11 over 2
22 over 3
Answer:
b
Step-by-step explanation:
-4(-8x + 12y)
Distribute
Answer:
-32x-48y
Step-by-step explanation:
multiply: -4 (8x) - 4 (12y) = -32x-48y
Answer:
32x - 48y
Step-by-step explanation:
when you distribute, -4 has to go to both -8x and 12y
so -4 times -8x = 32x
-4 times 12 = -48y
Final answer: 32x - 48y
Help is needed folks plz will give brainiest!
Answer:
I belive the answer is F
Step-by-step explanation:
In question/ option F it tells us that she started with 12 bannanas before getting 4 more bunchs, the question then asks how many bannanas were in each bunch, which then added plus 12 would of gotten you 32 bannans.
F
Step-by-step explanation:
G makes no sense, it says 5 bunches when there is 4x. H makes no sense, x will equal to 5. J makes no sense, 32 is the total.
Help me it is due in 30min
3 1/2 x 1 2/3
Step by step explanation
Answer:
5.83333333333
Step-by-step explanation:
i looked it up