14x2 –y2 +3x2 –y+2y2
Answer:
120
Step-by-step explanation:
Tarik turns in his third research report.
His teacher says that 20% of his reports for the
year are done. How many research reports will
Tarik complete during the school year?
Show your work.
HELP I DONT KNOW HOW TO DO THIS : international space station anniversary emoji math
PLEASE I NEED HELP ASAP
Find the standard deviation of the given data rounded to the nearest hundredth. 5.6, 5.2, 4.6, 4.9, 5.7, 6.4
Answer:
Standard deviation = 0.59
Step-by-step explanation:
Given data → 5.6, 5.2, 4.6, 4.9, 5.7, 6.4
Mean of the given data = [tex]\frac{5.6+5.2+4.6+4.9+5.7+6.4}{6}[/tex]
= 5.4
Data (x) (x - mean) (x - mean)²
5.6 5.6 - 5.4 = 0.2 (0.2)² = 0.04
5.2 5.2 - 5.4 = -0.2 (-0.2)² = 0.04
4.6 4.6 - 5.4 = -0.8 (-0.8)² = 0.64
4.9 4.9 - 5.4 = -0.5 (-0.5)² = 0.25
5.7 5.7 - 5.4 = -0.3 (-0.3)² = 0.09
6.4 6.4 - 5.4 = 1 (1)² = 1
N = 6 [tex]\sum (x-mean)^2[/tex] = 2.06
Since, Standard deviation = [tex]\sqrt{\frac{\sum (x-mean)^2}{N}}[/tex]
= [tex]\sqrt{\frac{2.06}{6} }[/tex]
= 0.5859
≈ 0.59
This is about the cone formula. If you don't know it, please don't answer. If you do, PLEASE ANSWER.
9514 1404 393
Answer:
(b) 10.5 in
Step-by-step explanation:
The formula for the volume of a cone is ...
V = 1/3πr²h . . . . . . for radius r and height h
Then the height is ...
h = 3V/(πr²)
Your cone has a volume V = 199 in³ and radius r = 4.25 in, so the height is ...
h = 3(199 in³)/(π(4.25 in)²) ≈ 10.52 in
The height of the cone is about 10.5 inches.
1) (x+y)² =
A. x²+2xy+y²
B. x²-2xy+y²
C.x²-2xy-y²
Answer:
a. x^2+2xy+y^2
Step-by-step explanation:
I hope this helps
Help with this due today
Find the value of x.
Answer:
107
Step-by-step explanation:
x=180-73
x=107
hope it helps
The vertex form of the equation of a parabola is y = (x + 5)2 + 49.
What is the standard form of the equation?
O A. y= x2 + 10x + 74
B. y= x2 + 5x +49
O c. y = x2 + 49x + 35
d
O D. y= 5x2 + 10x+ 74
SUBMIT
Answer:
A
Step-by-step explanation:
x+2/3=6 what is x .................
Answer:
x=16/3
x=5 1/3
x=5,3333333.....
Step-by-step explanation:
x+2/3= 6
x= 6-2/3
x=16/3
x= 5 1/3
x=5,33333333333......
I hope this will help you
Fill in the blank.
(x+a) (x+b) = (___) (___)
Answer:
(x+a) (x+b)=x(x+b)+a(x+b)=x²+bx+ax+ab=x²+x(a+b)+ab
Step-by-step explanation:
solution
here, given,
(x+a) (x+b)
= x(x+b) +a(x+b)
=x^2+xb+ax+ab ans
hope this helps u..
WHAT IS 9/2 as a mixed number?
Answer:
4 1/2
Step-by-step explanation:
.
Answer:
4 1/2
Step-by-step explanation:
9/2 as a mixed fraction.
= 9 ÷ 2
= 4 which leaves a remainder of 1
▪Take the 4 as the whole number, take the remainder 1 and place it over the denominator which is 2
You then get your answer.
4 1/2
Alonzo, Alice and Juan again all got different answers when they solve another problem. This time, they were solving:
( − 48 ) ÷ ( − 6 )
Alonzo believes the answer is 8.
Alice believes the answer is -8.
Juan believes the answer is -1/8
Do you agree with any of their answers?
Divide 14 4/10 by 5 9/16
What is the hypotenuse of a triangle with legs that are both 4 inches?
By applying Pythagorean's theorem, the hypotenuse of this triangle is equal to: D. √32 inches..
Given the following data:
Adjacent side = 4 inches
Opposite side = 4 inches.
How to calculate the hypotenuse of a triangle?In order to calculate the hypotenuse of this triangle, we would apply Pythagorean theorem.
Mathematically, Pythagorean's theorem is given by this formula:
c² = a² + b²
Where:
c is the hypotenuse.a is the adjacent side.b is the opposite side.Substituting the given parameters into the formula, we have;
c² = 4² + 4²
c² = 16 + 16
c² = 32
c = √32 inches.
Read more on Pythagorean theorem here: https://brainly.com/question/16176867
#SPJ2
0.2) Sharad bought one quintal of onions for Rs 2000. Later he
sold them all at the rate of Rs 18 per kg. Did he make a profit
or incur a loss? How much was it?
Answer: Loss, 200 Rs
Step-by-step explanation:
Given
Sharad bought a quintal of onion i.e. [tex]1000\ kg[/tex] for [tex]Rs.\ 2000[/tex]
So, the cost price of onion is
[tex]\Rightarrow \dfrac{2000}{100}=20\ \text{Rs per kg}[/tex]
He sells it at [tex]18\ \text{Rs. per kg}[/tex]
Here, the Selling price is less than the cost price
So, he incurs a loss of [tex]2\ \text{Rs per kg}[/tex]
For a quintal it is
[tex]\Rightarrow 2\times 100=200\ \text{Rs}[/tex]
[tex]\Rightarrow \text{Loss }\ \%=\dfrac{C.P.-S.P.}{C.P.}\times 100\\\\\Rightarrow \text{Loss }\ \%=\dfrac{20-18}{20}\times 100=10\%[/tex]
Which of the following will equal to a product of 8/10?
Answer:
i think 80
Step-by-step explanation:
(4, -3) reflected over the x-axis
Answer:
(4, -3) reflected over the X axis is (4,3)
Step-by-step explanation:
Factor completely
12n^3 + 15n^2 + 4n + 5
X + (x+1) + (x+2) = -21
Answer:
x= - 8
Step-by-step explanation: Are you solving for X if so here is the answer
Please help! I will mark you brainiest!!!!
Answer: x = 3
isolate x by adding 4 to each side
2x = 6
Divide by 2 to get x
x = 3
Help please with step by step
Answer:
47.1
Step-by-step explanation:
tan 61 = FD/24
FD = 43 3
cos 19 = 43.3/FE
FE = 43.3/cos 19 = 47.1
What is the value of x in the figure above?
What is Y?
What is the value of z?
What 2 methods can be used to find Z?
Answer:
y=92
z=57
TWO METHODS:
1) z=180-31-92 (small triangle)
2) z=180-60-63 (big triangle)
Step-by-step explanation:
63+29+x=180
x=180-92
x=88
y=180-88
y=92
z=180-31-92
z=57
What is the area of the triangle?
Answer:
16 units²
Step-by-step explanation:
Area of the right triangle = ½ × base × height
base = 8
height = 4
Substitute
Area = ½ × 8 × 4
Area = ½ × 32
Area = 16 units²
. A nationwide survey of college seniors by the University of Michigan revealed that almost 70% disapprove of daily pot smoking, according to a report in Parade. Suppose 12 seniors are selected at random and asked their opinion. Our goal is to investigate the number of pot smokers. (a) Verify that this is an example of a binomial experiment. (b) What is the probability that exactly one of the 12 seniors disapproves daily pot smoking
Answer:
a) Trials are independent, and there is a fixed number of trials, which means that the binomial probability distribution can be used.
b) 0.000015 = 0.0015% probability that exactly one of the 12 seniors disapproves daily pot smoking
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
a)
For each senior, there are only two possible outcomes. Either they disapprove daily pot smoking, or they do not. The seniors are selected at random, which means that the probability of one disapproving daily pot smoking is independent of other seniors, that is, the trials are independent. There is also a fixed number of trials.
b)
70% disapprove of daily pot smoking, according to a report in Parade, which means that [tex]p = 0.7[/tex]
12 seniors means that [tex]n = 12[/tex]
The probability is P(X = 1).
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 1) = C_{12,1}.(0.7)^{1}.(0.3)^{11} = 0.000015[/tex]
0.000015 = 0.0015% probability that exactly one of the 12 seniors disapproves daily pot smoking
3)
13 and 31 both are prime numbers. In both numbers, 1 and 3 are common. Now,
make four pairs of such prime numbers from 1 to 100.
13 and 31
17 and 71
37 and 73
79 and 97
hope my ans helps
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please help me solve this problem!!
Answer:
here's the link to the answer
Step-by-step explanation:
WWW.math.com/int.etg
how many gallons of water did niles pour into the tank each minute? Please help me asap
Step-by-step explanation:
3
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Garrett has a current checking account balance of $695. Over the next three days, he receives a direct deposit of $475.75 from his job, pays an annual online banking fee of $24, and makes purchases of $34.21 and $8.92. He then withdraws $60 from an ATM that charges a $3.50 usage fee.
What is Garrett's account balance at the end of the day period? Write your answer in numeric form, such as $1369.05.
Answer:
1040.12
Step-by-step explanation:
695.00
+475.75
=1,170.75
Subtract
24.00
34.21
8.92
60.00
3.50
= 130.63
695.00+475.75=1,170.75-130.63=1040.12
Please help with my math problems
Answer:
4. D
6. A
Step-by-step explanation: