Answer:
b
Step-by-step explanation:
Friona made an error in the second step that is step 2.
What error did she make in writing her step.?The descriptions of each step are given the multiplications of the bionomical and the trinomial i.e (2x – 3)(5x2 – 2x + 7). The titled Fiona's product has the 2 columns and the 5 rows. The first Colum is labeled as with 4 steps The second Colum is labeled as a result and the fifth is expression.
Using the distributive property and multiplying by -3 times each term of the trinomial. Thus, -3(5x^2 - 2x + 7) = -15x^2 + 6x - 21 Fiona written -6x instead of + 6x. This is the error. Hence the answer is "Step 2"
Find out more information about the description of each.
brainly.com/question/14249120.
1. Draw a histogram from all the data. Starting at the bottom row, for each set of 10 flips, place an “x” in the column corresponding to the number of heads that set produced. Your histogram should look similar to the example below: 2. Calculate the mean and standard deviation. mean = _____, standard deviation = _____ 3. Calculate the percent of the data that is within 1, 2, and 3 standard deviations of the mean. within 1 standard deviation = _____% within 2 standard deviations = _____% within 3 standard deviations = _____% 4. Compare your results to a normal distribution. Interpret any differences.
Answer:
Here is the histogram of the data:
[Image of a histogram with 10 bins, each representing the number of heads in a set of 10 flips. The most common number of heads is 5, and there are fewer heads and tails as the number of heads increases or decreases.]
The mean is 5 heads, and the standard deviation is 2.28.
Within 1 standard deviation of the mean are the values from 2.72 to 7.28. This includes 68.27% of the data.
Within 2 standard deviations of the mean are the values from 0.44 to 8.56. This includes 95.45% of the data.
Within 3 standard deviations of the mean are the values from -1.84 to 10.16. This includes 99.73% of the data.
The distribution of the data is close to normal, but there is a slight skew towards the left. This is because there are more sets of 10 flips with 5 heads than there are sets with 6 heads or 4 heads.
The normal distribution is a symmetrical distribution, which means that there is an equal amount of data above and below the mean. The distribution of the data in this case is slightly skewed, which means that there is more data below the mean than above the mean. This is because there are more sets of 10 flips with 5 heads than there are sets with 6 heads or 4 heads.
Step-by-step explanation:
I need help on this math problem help !?
Answer:
C.
Step-by-step explanation:
Technically, none of these answers are correct because the domains need to be restricted. However, if you included imaginary numbers into the graph, then C. would be your best choice.
Answer:
The answer is (C) x - [tex]\frac{1}{6}[/tex] [tex]y^{2}[/tex].
Step-by-step explanation:
Hope this helps you!
How much more would be in
an account that has interest
compounded continuously
rather than annually if the
initial deposit is $500 and the
yearly interest rate is 7% for
10 years?
Answer: $1006.88
Step-by-step explanation:
A = (1+r/n)^nt
Answer: $23.3
Step-by-step explanation:
Compounded Continuously:
F=500e^0.07*10 = $1006.88
Compounded Annually:
F=500(1+0.07/1)^1*10 = $983.58
1006.88 - 983.58 = 23.3
What is the 8th term in the binomial expansion of (2x+1)^9?
Answer:
512 x 9 − 2304 x 8 + 4608 x 7 − 5376 x 6 + 4032 x 5 − 2016 x 4 + 672x 3 − 144 x 2 + 18 x − 1
Step-by-step explanation:
Write a function and solve for the
total loan amount of an initial loan
of $24,520 with an interest rate of
3% for 10 years.
Answer:
Total is 7356
Step-by-step explanation:
Find 3% of $24,520
Interest = per year
So the 3% times 10 and you get the answer
SOMEBODY HELP ME WITH MY GEOMETRY PLS
Answer:
1 = 31°
2 = 51°
3 = 51°
4 = 67°
Step-by-step explanation:
1 is 31° because it alternates with the angle labelled 31°.
2 is 51° because it is in the same triangle as 1 and we know that the angle at the intersection of the diagonals are 90° and the sum of angles in a triangle is 180°.
3 is 51° because it alternates with the angle 2.
Which angles are obtuse?
Answer:
B. ∠DBC
Step-by-step explanation:
∠DBA is an acute angle
∠GFE is also an acute angle
∠MLK is a right angle, neither acute or obtuse (it's in its own category)
Answer:
B. ∠DBC
Step-by-step explanation:
Obtuse angles are angles larger than 90 degrees.
We can easily tell that ∠GFC and ∠MLK aren't obtuse, since ∠GFC is acute and ∠MLK is a right angle. Right angles and acute angles are always less than obtuse.
Now, for a trickier one. Let's look at ∠DBA and ∠DBC
It's easer to find out what type of angles they are by separating them. (look at image)
See? ∠DBA is acute. And we can easily tell that ∠DBC is an obtuse angle.
Hence, ∠DBC is the correct answerHope this helps! (Brainliest?)PLEASE HELP ME ILL MARK AS BRAINLIEST
Answer:
I think that you would divide all the euros by 1.35 to get the pounds
if thats right then the answer should be £2504.07407408
Step-by-step explanation:
i did this by first getting the hotel price (125 euros per night) and timesing that by 14 as they stay for 14 nights, this gives you 1750
then i converted 1750 to pounds by dividing 1750 by 1.35 to get £1296.2962963
next i did the wifi price (6 x 13 = 78, 78 divided by 1.35 = £57.7777777778)
after that i added those two prices together to get £1354.07407408
the final step was to add £1150 so i got £2504.07407408, and that hopefully should be the answer !
hope this works :)
How can you be certain that the angles you have created form a square inside the
circle?
Answer:
Step-by-step explanation:
Make sure that the angles are the same length, also make sure that the diameter of the circle is not smaller than that of the square to find diameter of a circle multiply the radius by 2, to find the radius use this formula
r=C over 2π
By Ensure that its angles are identical, and also ensure that circle's diameter is only smaller than the square because then the circle diameter multiplies the range by 2, so how you can find the [tex]\bold{r=C}[/tex] formula of the radius over [tex]\bold{2\pi}[/tex]
The building process is as follows:
Circle diameter is plotted.The method as described in the perfectly straight central axis of a portion is drawn by the bisector of the right angle of the radius. It is also a circular pattern diameter.The four areas on the circle that result are indeed the square vertices.Please find the attached file.
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i need help pleaseeee ASAP!!!!!!
Answer:
180 degrees
Step-by-step explanation:
Find a unit rate in the real world and add it to the discussion. You may add a picture or explain your unit
rate. Do not submit one someone else has already added. Week Two
Answer:
One bag of pretzels costs three dollars. Five bags of
pretzels costs $10. Which has the lower unit price?
You score 84 points in six games. How much do you score per
game?
It costs $3.99 for 25 fl. oz. of detergent or $6.99 for 90 fl. oz. Which
is a better buy?
Steve drives 78 miles on 3 gallons of gas. Find the miles per gallon.
Maria walks 12 miles in 3 hours. How many miles does she walk per
hour?
Do you have to solve it?
a) Alice says that all the factors of 8 are even.
Write down an example to show that Alice is wrong. This is one mark question..
Factors of 8 include: 1, 2, 4, 8
Noticed something? Of course, there is a number 1 in the list of factors of 8.
Alice is wrong because there is one odd number in the factors of 8.
Answer:
Alice says that all factor of 8 are even
8
16
24
32
40
48
56
72
84
8. analyze the diagram below and complete the instructions that follow
find sin angle NOM
A. 1/4
B. 1/3
C. 3/5
D. 4/5
Answer:
C. 3/5
Step-by-step explanation:
Sin of any angle is = perpendicular/ hypotenuse
In any right angle triangle, with side a and b containing right angles and h having hypotenuse, using Pythagoras theorem
[tex]h^2 = a^2 + b^2[/tex]
___________________________________________
In triangle NOM
ON = 4,
NM = 3
lets find OM
using Pythagoras theorem
[tex]OM^2 = ON^2 + NM^2\\=> OM^2 = 4^2 + 3^2\\=>OM^2 =16 + 9 = 25\\=> \sqrt{OM^2} = \sqrt{25} \\=> OM = 5[/tex]
Thus, OM = 5
sin angle NOM = perpendicular/ hypotenuse = NM/OM = 3/5
sin angle NOM = 3/5
anyone help????? por favor
Answer:
A. x = 5, y = 6
Step-by-step explanation:
The directions tell you to do steps on the calculator, so I can't explain or show how to use it in the calc. But simply just plug it into the calc as a matrix and do rref.
Answer:
x= 5, y= 6
Step-by-step explanation:
5x - 4y = 1
4x - 2y =8
Multiply the second equation by -2
-8x + 4y = -16
Add this to the first equation
5x - 4y = 1
-8x + 4y = -16
---------------------
-3x = -15
Divide by -3
-3x/-3 = -15/-3
x = 5
Now find y
4x -2y = 8
4(5) -2y = 8
20-2y = 8
Subtract 20
-2y = -12
Divide by -2
y = 6
Sara leaves home at 7 A.M. traveling at a rate of 45 mph. Her son discovers that she has forgotten her briefcase and starts out to overtake her. Her son leaves at 7:30A.M. traveling at a rate of 55 mph. At what time will he overtake his mother?
Answer:
B I think
Step-by-step explanation:
Answer:
Dude, there is no option?
Step-by-step explanation:
A sequence defined recursively by the formula f(n+1) = -2f(n) . the first term of the sequence is -1.5 what is the next term in the sequence Search Results Web results
Answer: hi the answer is 3
Step-by-step explanation:
Evaluate 2z + xy when x = 4, y =6, and z =3 A.24 B.144 C.30 D.76
Answer:
C
Step-by-step explanation:
2z + xy
Put z as 3, x as 4, and y as 6.
2(3) + (4)(6)
Multiply the terms.
6 + 24
Add both terms.
= 30
Answer: C. 30
Step-by-step explanation:
So first, you replace all the letters to number which has been given, then you will get this:
2 x 3 + 4 x 6
Then after it will be easy.
2 x 3 + 4 x 6
6 + 24
=30
Which of the following uses absolute value correctly to show the distance between -30 and 16?
A-30 - 16= |-46= -46 units
B-30 - 16| = |-461 = 46 units
C-30 + 16 = 1-14) = 14 units
D-30 + 161 = |-141 = -14 units
Answer:
B-30 - 16| = |-461 = 46 units
Step-by-step explanation:
The distance between -30 and 16 is the absolute value of the difference between the points
| -30 -16| = |-46| = 46 units
Find the value of X.
Answer:
x = 8
Step-by-step explanation:
24 : x = 36 :12
36x = 24 * 12
x = 24*12/36 = 8
y=-3x2 + x + 17
axis of symmetry?
Karin wants to use the distributive property to mentally find the value of 19⋅42+19⋅58. Which expression can she use?
Answer:
[tex]19( 42+ 58)[/tex]
Step-by-step explanation:
[tex]19 \cdot 42+19 \cdot 58\\[/tex]
The common factor is 19
[tex]19( 42+ 58)[/tex]
Answer:
A
Step-by-step explanation:
dont know how explain.
which of the following is a qualitative statement that is reasonable based on the data? A The fewest number of cars at home is 0 B Most students have 2 or fewer cars at home C Most students have 3 or more cars at home D The median number of cars at home is 3
Answer:
B
Step-by-step explanation:
Find the value of y.
Answer:
y = [tex]\frac{4\sqrt{3} }{3}[/tex]
Step-by-step explanation:
We are working with 30-60-90 triangles, and to solve for y we need to know the hypotenuse of the smaller triangle.
You can get that by finding the smaller value of the larger triangle.
[tex]\frac{8}{\sqrt{3} } =\frac{x}{1}[/tex]
x[tex]\sqrt{3}[/tex] = 8
x = [tex]\frac{8}{\sqrt{3} }[/tex]
x = [tex]\frac{8\sqrt{3} }{3}[/tex]
That is the hypotenuse of the smaller triangle. To find y...
[tex]\frac{(\frac{8\sqrt{3} }{3}) }{2} =\frac{y}{1}[/tex]
2y = [tex]\frac{8\sqrt{3} }{3}[/tex]
y = [tex]\frac{4\sqrt{3} }{3}[/tex]
Hope this helps!
Which statement about the function are true? Select two options
a,e
Step-by-step explanation:
correct on e2020
Twenty two quarts is equivalent to how many gallons?
4.5
5.5
C
6.5
7.5
Answer:
5.5 gallons
Step-by-step explanation:
There are 4 quarts in 1 gallon.
22 ÷ 4 = 5.5
I hope this helps :)
Find the size of the final unknown exterior angle in a polygon whose other exterior angles are:
63', 64°, 82°, 49° and 58°
Answer: 44°
Step-by-step explanation:
The sum of the exterior angles of a polygon is 360°
If your polygon has six sides, the final angle will be:
= 360 - (63 + 64 + 82 + 49 + 58)
= 360 - 316
= 44°
Write an equation in slope-intercept form for a line that passes through the two points (-2,-5) and (-4,3). Show your work.
Answer:
y = -4x - 13
Step-by-step explanation:
Use point - slope form to convert to y = mx + b form
1. Find the slope using y2 - y1 / x2 - x1
3 + 5 / -4 + 2
m = -4
2. Plug into point - slope form: y - y1 = m (x - x1)
y + 5 = -4 (x + 2)
Distribute
y + 5 = -4x - 8
Subtract 5 from both sides
y = -4x - 13
4x+15 represents jin's earings, 3x+10 represents Henrys earnings what is the total earnings if x=20
Answer:
165
Step-by-step explanation:
Step 1: Combine equations
4x + 15 + 3x + 10
7x + 25
Step 2: Plug in x = 20
7(20) + 25
140 + 25
165
Step-by-step explanation:
4x20 + 15= $80+$15=$95.00
3x20+10=$60+$10= $70.00
$165.00
A musician purchases a pair of cube-shaped speakers that are 9 inches across. If the face of the speaker takes up of the total volume of the speaker, how much volume is left in both speaker cabinets? 607 cu.in. 1215 cu.in. 1458 cu.in. 800 cu.in.
Answer:
Assuming "the speaker takes up 1/6 of the internal volume"
volume is 9³ in³
you want the remaining volume, which is 5/6 of the total
(5/6)9³ = 607.5 in³
double that if you want the remaining volume for BOTH speakers....
Which of the following graph represents the equation below
y=2x +2
A. Graph A (1,6) (0,1)
B. Graph B (2,6) (0,2)
C. Graph C (0,2) (-1,-1)
D. Graph D (-1,0) (0,-2)
Answer:
Graph C
Step-by-step explanation:
Graph B represents the equation y=2x +2
The coordinates on the graph match the equation.
when x=0, the y-value is 2.
y=2x +2
y=2(0)+2
y=2
When x=2, the y-value is 6.
y=2(2)+2
y=4+2
y=6
So the graph with the points (2,6) and (0,2) represents the equation y=2x+2.
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