Answer:
36+16= 52
4(9)+4= 40, which does not equal 52.
4(9+4) = 52.
6(6+8) = 84, which does not equal 52.
(6+4)(6+4) = 100, which does not equal 52.
So, 4(9+4) is correct.
Let me know if this helps!
find the polynomial function of degree 3 whose y intercepts is 2 and x is 2 and 3
Answer:
y = x³ - 3x² + 4x - 12
Step-by-step explanation:
We are told that the polynomial intercept is 3 degree and has it's intercepts at 2, 2 and 3.
Now, at y - intercept, y = 0m
Thus, the polynomial is;. (x - 2)(x - 2)(x - 3) = 0.
This gives;
(x² - 4x + 4)(x - 3) = 0
This gives;
x³ - 12x + 4x - 3x² + 12x - 12 = 0
x³ - 3x² + 4x - 12 = 0
Billy skated 100 meters in 400 seconds. Find the unit rate.
Answer:
1/4 m/s
Step-by-step explanation:
rate = meters/ seconds = 100/400 = 1/4
Answer:
0.25 meters per second
Step-by-step explanation:
100 meters÷400/ 400 seconds ÷400
=0.25 meters/ 1 second
0.25 meters per second
that is most likely to be returned. The table shows the number of items of
each brand that were returned over the past year and the total sold.
Returns
Total sold
Brand A
23
325
Brand B
19
279
Brand C
31
512
Brand D
18
475
Which brand should the store eliminate?
Answer:
Brand A
Step-by-step explanation:
Just took the quiz
The brand that should be Eliminated is Brand C.
The correct option is C.
Brand A :
Total Sold = 686
Returns = 33
so, % of returns = (33 * 100) / 686 = 4.8%
Brand B :
Total Sold = 492
Returns = 15
so, % of returns = (15 * 100) / 492 = 3.04%
Brand C :
Total Sold = 362
Returns = 29
so, % of returns = (29 * 100) / 362 = 8.01%
Brand D :-
Total Sold = 767
Returns = 32
so, % of returns = (32 * 100) / 767 = 4.17%
As we can see that, Brand C returns % is most.
Therefore, the store should eliminate Brand C.
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I have data with 2 independent variables measuring the effectiveness of 3 different antibiotics at different dosages. I don't know if I should use a bar graph or line graph
A cyclist is riding a bicycle whose wheels have a diameter of 2.1 feet. Suppose the wheels turn at a rate of 260 revolutions per minute. (a) Find the angular speed of the wheels in radians per minute. (b) Find the speed of the cyclist in feet per minute. Do not round any intermediate computations, and round your answer to the nearest whole number.
Answer:
a.1633rad/min
b.1715feet/min
Step-by-step explanation:
We are given that
Diameter of wheel, d=2.1 feet
Radius of wheel, r=[tex]\frac{d}{2}=\frac{2.1}{2}[/tex]feet
Rate=260 rev/min
a. We have to find the angular speed of the wheel in rad/min
1 rev=[tex]2\pi[/tex]radian
Where [tex]\pi=3.14[/tex]
Using the value
Angular speed=[tex]260\times 2\times 3.14/min[/tex]
Angular speed,[tex]\omega=1633rad/min[/tex]
(b)
Speed=[tex]r\omega[/tex]
Using the formula
Speed of the cyclist=[tex]\frac{2.1}{2}\times 1633[/tex]feet/min
Speed of the cyclist=1714.65[tex]\approx 1715[/tex]feet/min
Select the correct answer from each drop-down menu.
Brian has started to invest in the stock market. What does he need to know about reporting dividend income on his tax return?
A taxpayer’s dividend income is reported on Form
. The taxpayer must enter this amount in the
section of a tax return. After all deductions have been subtracted, the amount of taxes due will be calculated based on the
.
Im not sure about the second one but the first one is 1099-DIV and the last one is taxable income. I can tell you the second one is NOT deductions haha
Answer:
1099-DIV
Income
Taxable Income
Step-by-step explanation:
Plato
The ratio of the height of a skateboard ramp to the length of the skateboard ramp is 1 to 3.The height of the ramp is 15 feet.What is the length of the ramp
Answer:
17ft
Step-by-step explanation:
Margaret earned a scored of 38/40 on her test. What is the decimal expansion of the score she received
Answer:
0.95
Step-by-step explanation:
38/40=0.95
_____________are opposite angles that share the same vertex. They are formed by a pair of intersecting lines. Their angle measures are equal.
Answer:
vertical angles
Step-by-step explanation:
vertical angles are opposite angles that share the same vertex. They are formed by a pair of intersecting lines. Their angle measures are equal.
What are the coordinates of the image of vertex P after a reflection of rx-axis(x, y)?
Answer: (-7, 4)
1- the x-coordinate of the reflected point is the same as the x-coordinate of the original point
2- the y-coordinate of the reflected point has the same value but opposite sign of the y-coordinate of the original point
I need help plz plz
Answer:
I know what the answer is
Step-by-step explanation:
The answer is 3. You can tell because 5 times 3 is 15
6 times 3 is 18
7 times 3 is 21
8 times 3 is 24
ꕥHere’s another one :Dꕥ
——————————————
What’s the distance between ( 0, 2) and ( 0, 5)?
——————————————
I think I know the answer but I’m not sure
Answer:
3 units
Step-by-step explanation:
difference in x=0 (0-0=0)
difference in y=3 (5-2=3)
you drive a car 45 miles at spd r (mph). on return trip, spd is 3/4 r. the round trip took 1 hr 45 min. find avg speed
Answer:
the agv speed is 223
Step-by-step explanation:
Answer:
51.42 avg mph
Step-by-step explanation:
45+45 = 90 miles total for 1 3/4 hours
90/.75 = 51.42 avg mph
In the equation, y= 4x - 3 the y-intercept is 4 true or false
Answer:
False
Step-by-step explanation:
Slope intercept form is y=mx+b where x is our slope and b is our y value. Thefore, 3 is our y value not 4.
Work out the surface area
Answer:
189
Step-by-step explanation:
6 imes 4.5divide2
13.5
13.5
67.5
54
40.5
The answer to this question
Answer:
30
Step-by-step explanation:
16+ 24 * 5 / 10 = 30
Which of these values for the number of feet in a mile is most accurate, when
compared to the exact value?
A. 5,200
B. 5,290
C. 5,000
D. 5,300
Answer:
B. 5,290 feet
Step-by-step explanation:
1 Mile = 5280 Feet
1) Which is the slope in the following linear equation?
y= 7x + 3
A. 3
B. 11
C. 7
D. 4
Answer:
C. 7
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
y = 7x + 3
Step 2: Break Function
Identify Parts
Slope m = 7
y-intercept b = 3
3a + 4b = 5a - 4b solve the problem
Answer:
a=4b and b=1/4a
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
3a + 4b is the answer because there are no like terms to add
5a - 4b is the answer because there are no like terms to subtract.
Making it false because 3a + 4b = 3a + 4b not 5a - 4b
HELP ME PLZZZZZZ
ALL OF THEM
thx for the help :)
1. 9/4
2.67/8
3.17/6
4.9/2
5.16/3
6.127/12
7.37/4
8.31/6
9.40/6
10.73/7
11.34/3
12.41/2
PLEASE HELP ASAP 390I290WJKEFDMSFJFSDFSD
Answer:
sure with wat? there is nothing and which subject is it math im really good at math
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Which hill is steeper?
A. A hill that rises 2 feet for every 10 feet of run
B. A hill that rises 2 feet for every 15 feet of run
Answer:
B. A hill that rises 2 feet for every 15 feet of run.
Step-by-step explanation:
The two must have COPs. We'll narrow them down.
For A, we divide 10 by 2.
[tex]\frac{10}{2} = 5.[/tex]
For B, we divide 15 by 2.
[tex]\frac{15}{2} = 7.5.[/tex]
B has the larger number, so it is B.
Answer:
b because the 2 feet 15 feet long and it is bigger than a the 2 feet and 10 feet long is the smallest so the hill that is steeper is bStep-by-step explanation:
step one look at the answer choice
step two see which one is bigger
step three then find the smallest
step four put which one is steeper
5/6 of 7 what is it. oopoo
Answer:
5 5/6
Step-by-step explanation:
5/6 x 7 = 35/6 = 5 5/6
un numero entero y racional
Answer:
Los números racionales son aquellos números que pueden ser expresados como una relación entre dos enteros. Por ejemplo, las fracciones 1/3 y –1111/8 ambas son números racionales. Todos los enteros están incluídos en los números racionales, ya que cualquier entero z puede ser escrito como la relación z /1.
Step-by-step explanation:
In a sample of 1000 cases, the mean of a certain test is 14 and the standard deviation is 2.5. Assume the distribution to be normal. The top 20% of the students will score how many points above the mean
Answer:
The top 20% of the students will score at least 2.1 points above the mean.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
The mean of a certain test is 14 and the standard deviation is 2.5.
This means that [tex]\mu = 14, \sigma = 2.5[/tex]
The top 20% of the students will score how many points above the mean
Their score is the 100 - 20 = 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.84.
Their score is:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]0.84 = \frac{X - 14}{2.5}[/tex]
[tex]X - 14 = 0.84*2.5[/tex]
[tex]X = 16.1[/tex]
16.1 - 14 = 2.1
The top 20% of the students will score at least 2.1 points above the mean.
During a sale the price of a digital camera is reduced by $63 from the original price of 180 by what percentage is the price of the camera reduced
Answer:
63/180 = 0.35 = 35%
Step-by-step explanation:
^
what is the value of 4/15 ÷ 2/3
The value of 4/15 ÷ 2/3 is 2/5
In order to solve this, the first thing is to change the division sign to multiplication sign and this will be:
= 4/15 ÷ 2/3
= 4/15 × 3/2
= 12/30
Reduce to lowest term
12/30 = 2/5
In conclusion, the value of 4/15 ÷ 2/3 is 2/5.
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Assume you are planning a picnic for lunch, but when you woke up there were rain clouds in the sky. If 50% of rainy days start with rain clouds in the air, 20% of all days start with clouds in the air, and rain only typically occurs on 1 out of every 10 days, what is the probability that it will rain today and ruin your picnic
Answer:
0.25 = 25% probability that it will rain today and ruin your picnic
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Cloudy skies
Event B: Rain
20% of all days start with clouds in the air
This means that [tex]P(A) = 0.2[/tex]
50% of rainy days start with rain clouds in the air
50% of 10%. So
[tex]P(A \cap B) = 0.5*0.1 = 0.05[/tex]
What is the probability that it will rain today and ruin your picnic
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05}{0.2} = 0.25[/tex]
0.25 = 25% probability that it will rain today and ruin your picnic
Elizabeth earned $150 a week
tutoring. If he saved $75,
what percent of the money he
earned did he save?
Answer: 50%
Step-by-step explanation:
75:150*100 =
(75*100):150 =
7500:150 = 50
Answer:
50%
Step-by-step explanation:
150-75=75
75 is half of the money he earned and 75 is half he saved.
100 dived by 2 is 50 therefore 50 %
150 adult complete a survey
80 are women
write the ratio men: women in it's simplest form.