We have been given that a baseball coach graphs some data and finds the line of best fit. The equation for the line of best fit is [tex]y=0.32x-20.51[/tex],where x is the number of times at bat and y is the number of hits.
To find the number of hits in 175 times at bats, we will substitute [tex]x=175[/tex] in our given equation as:
[tex]y=0.32(175)-20.51[/tex]
[tex]y=56-20.51[/tex]
[tex]y=35.49[/tex]
Upon rounding to nearest whole number, we will get:
[tex]y\approx 35[/tex]
Therefore, the coach would expect 35 hits from a player who is at bat 175 times.
The expected number of hits = 35.
The given line of best fit is [tex]y=0.32x-20.51.[/tex]
Given that:
x = the number of times a bat = 175.
We have to find y = ?
We plug x = 175 in the given equation.
[tex]y=0.32x-20.51\\y=0.32(175)-20.51\\y=35.49[/tex]
The integer before 35.49 is 35. [Because, number of hits can not be fraction.]
So the expected number of hits = 35.
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Here are the first five terms of an arithmetic sequence. 4 9 14 19 24 Find, in terms of n, an expression for the nth term of this sequence
Answer:
The nth term can be represented by;
Tn = 5n- 1
Step-by-step explanation:
In this question, we are concerned with finding an expression in terms of n for then the term of the sequence.
Mathematically, the nth term of a sequence Tn can be represented by the formula;
Tn = a + (n-1)d
where a is the first term in the sequence which is 4 , and d is the common difference which is the difference between 2 consecutive terms which is 9-4= 5
our n is n, since we do not know the number of terms we are finding for
Plugging these values, we have;
Tn = 4 + (n-1)5
Tn = 4 + 5n -5
Tn = 5n- 1
A rocket is launched from atop a 104-foot cliff with an initial velocity of 110 ft/s. A. Substitute the values into the vertical motion formula . Let h = 0. B. Use the quadratic formula find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second.
Answer:
7.68 s
Step-by-step explanation:
The vertical motion formula is:
[tex] h_{t} = h_{0} + v_{0}t - \frac{gt^{2}}{2} [/tex]
Where:
h(t): is the final height = 0
h(0): is the height of the cliff = 104 foot
v(0): is the initial velocity = 110 ft/s
g: is the gravity = 9.8 m/s² = 32.15 ft/s²
Hence, from the vertical motion formula we can find the time that will take the rocket to hit the ground:
[tex] 0 = 104 + 110*t - \frac{32.15t^{2}}{2} [/tex]
[tex] 0 = 104 + t(110 - 16.08t) [/tex]
We have two solutions:
t₁= -0.84 s
t₂ = 7.68 s
We will take the positive value, thus the time that will take the rocket to hit the ground is 7.68 s.
I hope it helps you!
4(sin3x-cos2x)=5(sinx-1)
Rewrite the expression in the form 4^n4 n 4, start superscript, n, end superscript. (4^{6})(4^{-8})=(4 6 )(4 −8 )=(, 4, start superscript, 6, end superscript, ), (, 4, start superscript, minus, 8, end superscript, ), equals
To multiply powers with the same base, like (4^6)(4^-8), add the exponents to get 4^(6-8) = 4^-2. Converting the negative exponents gives us 1/4^2 or 1/16 as the simplified expression.
Explanation:To rewrite the expression in the form 4n4n, we use the rule that when multiplying two numbers with the same base, we add their exponents. So, (46)(4-8) = 4(6 + (-8)) = 4-2 = 1/42 = 1/16.
When multiplying powers with the same base, you simply add the exponents. In the expression (4^{6})(4^{-8}), we add the exponents 6 and -8. The rules of exponents tell us that 4^{6} \times 4^{-8} = 4^{6-8} = 4^{-2}. Negative exponents indicate the reciprocal of the base raised to the positive of that exponent. Therefore, 4^{-2} = \frac{1}{4^{2}} = \frac{1}{16}. This simplified expression demonstrates how to work with exponents and manage negative exponents effectively.
Deanna has a balance of $324.55 in her checking account. She uses her debit card to pay$102.00 for a concert ticket. What is the balance in her checking account now? *
Answer:
$222.55
Step-by-step explanation:
Answer:
$222.55
Step-by-step explanation:
$324.55-$102.00
If you are good at figuring out sequences in math please help! Rewarding more points!
Answer:
-62.5008
Step-by-step explanation:
Find the pattern first: -75/15 = -5
Find the first 7 terms: -3/-5, 3/25, -3/125, 3/625
Add: -62.5008
Answer:
-62.5008
Step-by-step explanation:
The terms form a geometric sequence with first term -75 and common ratio -1/5. The sum of n terms of such a sequence is...
Sn = a1(1 -r^n)/(1 -r)
For the values of a1, r, and n, this sum is ...
S7 = -75(1 -(-1/5)^7)/(1 -(-1/5)) = -75(1 +1/78125)/(1 +1/5)
= -75(13021/15625) = -62 313/625
= -62.5008
The sum of the first 7 terms of the sequence is -62.5008.
In a city school of 1200 students 42% of the students are on the honorable 64% have a part time job and 28% are on the honor roll and have a part-time job what is the probability that a randomly selected student is on the honor roll given that the student has a part time job
Answer:
[tex]P(H|P) = \frac{P(H \cap P)}{P(P)}[/tex]
And replacing we got:
[tex] P(H|P) =\frac{0.28}{0.64}= 0.4375[/tex]
And the probability required for this case is 0.4375
Step-by-step explanation:
For this case we define the following events:
H = represent that the student is honorable
P= represent that the student have a part time job
And we have the following probabilities:
[tex] P(H) = 0.42 , P(P) = 0.64, P(H \cap P) =0.28[/tex]
And we want to find this probability:
[tex] P(H|P)[/tex]
And we can use the following probability:
[tex]P(H|P) = \frac{P(H \cap P)}{P(P)}[/tex]
And replacing we got:
[tex] P(H|P) =\frac{0.28}{0.64}= 0.4375[/tex]
And the probability required for this case is 0.4375
Step 4: Factor the function to find the x-intercepts.
The x-intercepts are:
Answer:
(5,0) and (-1,0)
Step-by-step explanation:
HELP ME PLZZ
The absolute value of a number is .|2| =
Answer:
The absolute value of a number is a distance /2/=2
Step-by-step explanation:
The absolute value of the absolute expression |2| will be 2.
What is the value of the expression?When the relevant components and basic processes of a numerical method are given values, the expression's result is the result of the computation it depicts.
The absolute function is also known as the mode function. The value of the absolute function is always positive.
The absolute expression is given below.
⇒ |2|
The value will be always positive when the value inside the mode is taken out. Then we have
⇒ |2|
⇒ 2
The absolute value of the absolute expression |2| will be 2.
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Find the value of x in the figure
Answer:
I am 99% sure it's [tex]x = 100[/tex]°, here's why (down)
Step-by-step explanation:
The total is 180°. When adding 57° + 23° = 80°. To get [tex]x[/tex], you have to subtract 80° from 180°. The difference is 100°, which is the answer of this problem.
Use the table of values to calculate the linear correlation coefficient r.
X Y
4 -5
53 -1
86 13
162 16
The linear correlation coefficient r is **1.2237445080439002**.
To calculate the linear correlation coefficient r, we can use the following formula:
[tex]r = (\sum(x - \bar x)(y - \bar y)) / \sqrt(\sum(x - \bar x)^2 \sum(y - \bar y)^2)[/tex]
where:
* [tex]\sum[/tex] is the sum of the values
* [tex]\bar x[/tex] is the mean of x
* [tex]\bar y[/tex] is the mean of y
First, we need to calculate the mean of x and y:
[tex]\bar x[/tex] = (4 + 53 + 86 + 162) / 4 = 71.25
[tex]\bar y[/tex] = (-5 - 1 + 13 + 16) / 4 = 5.75
Next, we need to calculate the sum of the squared deviations from the mean for x and y:
[tex]\sum(x - \bar x)^2 = (47.25^2 + 17.25^2 + 14.25^2 + 90.75^2) = 10148.5[/tex]
[tex]\sum(y - \bar y)^2 = (11.25^2 + 6.75^2 + 7.25^2 + 10.25^2) = 317.5[/tex]
Now, we can calculate the linear correlation coefficient r:
[tex]r = (\sum(x - \bar x)(y - \bar y)) / \sqrt(\sum(x - \bar x)^2 \sum(y - \bar y)^2)[/tex]
r = (47.25 * 11.25 + 17.25 * 6.75 + 14.25 * 7.25 + 90.75 * 10.25) / √(10148.5 * 317.5)
r = 1.2237445080439002
Therefore, the linear correlation coefficient r is **1.2237445080439002**.
This value indicates a strong positive correlation between x and y.
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A regular pentagon has an apothem measuring 3 cm and a perimeter of 21.8 cm. A regular pentagon has an apothem with a length of 3 centimeters and a perimeter of 21.8 centimeters. What is the area of the pentagon, rounded to the nearest tenth? 13.8 cm2 17.3 cm2 32.7 cm2 69.0 cm2
Answer:
C. [tex]32.7cm^{2}[/tex]
Step-by-step explanation:
Area = (Perimeter x apothem) / 2
Area = 21.8 x 3 / 2
Area = 65.4 / 2
Area = [tex]32.7cm^{2}[/tex]
C. The area of the regular pentagon, rounded to the nearest tenth is 32.7 cm².
Area of the regular pentagonThe area of the regular pentagon is calculated as follows;
Area = aP/2
where;
a is apothem of the pentagonP is perimeter of the pentagonArea = (3 x 21.8)/2
Area = 32.7 cm²
Thus, the area of the regular pentagon, rounded to the nearest tenth is 32.7 cm².
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A polynomial that has a degree of 0 is called ___.
Answer:
constant or constant polynomial
Some call is the zero polynomial
Step-by-step explanation:
Let x be raised to the 0 power
x^0 = 1
This is constant
3x^0 = 3*1 = 3
This is still constant
Answer:
Constant
Step-by-step explanation:
Degree 0 means the highest power of the variable is 0, which also means there's only one term
(Because the powers have to non-negative integers, and 0 is the smallest)
Ax⁰ is the form of a degree-0 polynomial
x⁰ = 1
Ax⁰ = A
Which is a constant
What is the value of s3 when: (infinite geometric series)
The value of S₃ is 65/9.
what is a geometric series?A geometric series is the sum of an infinite number of terms that have a constant ratio between successive terms. S= a + ar + ar² + ar³+ . . .
a=start term r =common ratio
Given here, the nth term is 5(1/3)ⁿ⁻¹
therefore the sum of the first 3 terms of the geometric series is
S₃ = 5(1/3⁰) +5(1/3)¹+5(1/3)²
= 1+ 5/3 + 5/9
= 65/9
Hence the final answer is 65/9
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what is the equation of this line
If the diameter of a circle is 19.3, what is the circumference?
Answer:
60.6
Step-by-step explanation:
The formula for finding the circumference of a circle is C = 2πr
C is circumference, π is pi (we'll just us 3.14 here), and r is radius.
The radius is found by dividing the diameter in half.
19.3/2=9.65
So the equation should look like this:
C = 2(3.14)(9.65)
C = 60.602
C = 60.6
The area of a rectangle is 36 sg in and the length of the rectangle is 9 in Which equation could be used to find the width of the
rectangle?
Answer:
Step-by-step explanation:
[tex]Width=\frac{Area}{length}\\\\=\frac{36}{9}\\\\[/tex]
= 4 inches
Answer:
9×W=36 or 36÷9=W
Step-by-step explanation:
to find the area of a figure you multiply L×W in this situation you only have length. soo find what times 9 = 36 or 36÷9 to find Width
Keiko uses 8.8 pints of white paint and blue paint to paint her bedroom walls. 4/5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls?
Answer:
1.76pints of blue paintStep-by-step explanation:
The total number of paint used = 8.8pints
If 4/5 of this amount is white paint, then the amount of white pint is expressed as;
[tex]= \frac{4}{5}*8.8\\= \frac{35.2}{5}\\[/tex]
= 7.04
This means the amount of white paint used is 7.04pints.
amount of blue paint used = Total amount of paint - amount of white paint
amount of blue white paint used = 8.8 - 7.04
amount of blue paint used = 1.76pints of paint
f(x) = 3^x Find f(x) when x = 8.
Answer:
f(8) = 3^8 = 6561
Step-by-step explanation:
f(x) = 3^x
Let x =8
f(8) = 3^8
= 6561
Answer:
f(8) = 6561
Step-by-step explanation:
f(x) = 3^x Substitute x = 8
f(8) = 3^8 Simplify the exponent
f(8) = 6561
Which equations have the same value of x as Three-fifths (30 x minus 15) = 72? Select three options. 18 x minus 15 = 72 50 x minus 25 = 72 18 x minus 9 = 72 3 (6 x minus 3) = 72 x = 4.5
Answer:
C.
D.
E.
Step-by-step explanation:
The two options that yield the same value for 'x' as the equation 'Three-fifths (30 x minus 15) = 72' are '3 (6 x minus 3) = 72' and 'x = 4.5'. The confusion can be eliminated by simply breaking down and solving the initial equation for 'x', and then substituting the calculated value for 'x' into the optional equations.
Explanation:To discover which options yield the same value as 'Three-fifths (30 x minus 15) = 72', we first need to solve the given equation for 'x'. This can be done as follows:
Multiply both sides by 5/3 to get rid of the 3/5 in front of the bracket: (30 x minus 15) = 120,Add 15 to both sides to isolate 30x on the left side: 30x = 135,Finally, divide by 30: x = 4.5.Substitute x = 4.5 into each option:
For '18 x minus 15 = 72', 18(4.5) - 15 isn’t equal to 72, so this is not correct.For '50 x minus 25 = 72', 50(4.5) - 25 isn’t equal to 72, so this isn’t correct as well.For '18 x minus 9 = 72', 18(4.5) - 9 isn’t equal to 72 either, hence, it is also incorrect.For '3 (6 x minus 3) = 72', 3(6*4.5 - 3) equals to 72, so this is correct.For 'x = 4.5', this is obviously correct as it matches our calculated value.Therefore, '3 (6 x minus 3) = 72' and 'x = 4.5' provide the same value for x as the initial equation 'Three-fifths (30 x minus 15) = 72'.
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Plz answer for 20 pts
Answer to Problem 1: 5√3
Answer to Problem 2: 21√5
Answer:
[tex] 6) \: \: \sqrt{3} + 4 \sqrt{3} \: = \: 5\sqrt{3}[/tex]
[tex] 7) \: \: 3\sqrt{5}+ 6\sqrt{45} = 3\sqrt{5}+6\sqrt{9} \! \cdot \! \sqrt{5} [/tex]
[tex] = 3\sqrt{5} + 6\! \cdot \! 3 \! \cdot \! \sqrt{5}=3 \sqrt{5} + 18 \sqrt{5} = 21\sqrt{5} [/tex]
1. Which student correctly simplified the expression 5.2 + 3.6x – 8 + x?
To simplify the expression 5.2 + 3.6x - 8 + x, combine like terms to get -2.8 + 4.6x, which is the final simplified expression.
Explanation:The student's question involves simplifying the expression 5.2 + 3.6x – 8 + x. To simplify the given algebraic expression, combine like terms. Like terms in this expression are the constant terms (5.2 and -8) and the variable terms (3.6x and x).
First, add the constant terms together:
5.2 - 8 = -2.8
Then, combine the variable terms:
3.6x + x = (3.6 + 1)x = 4.6x
Now, put the constants and variable terms together to get the simplified expression:
-2.8 + 4.6x
To check if the simplified expression is reasonable, ensure that all like terms have been correctly combined. There is no further simplification possible, so this is the final answer.
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For a bookease, Tim wants 6 shelves
ench 284 inches long What total length
of shelving does he need?
Answer:
1704 inches
Step-by-step explanation:
Take the length of each shelf and multiply by the number of shelves
6* 284 =1704 inches
Answer:
1704 in
Step-by-step explanation:
Which is the measure of
A)93
B.113
C.138
D.180
Answer:
Depends on the angel needed, I'll provide all answers
Step-by-step explanation:
Angel A is 93, because a straight line has an angel total of 180, so in order to find angel A you would just need to subtract
180-87 = 93
Angel B is 87, because angels opposite each other have the same value.
The Angel without a character would be 93 for the same reason :3
Johnny ate 200 jars of his fathers sugar if johnny got a warning from his papa (While T-posing and floating to him) every 10 jars, how many warnings did he get? (Sorreh I'm not a troll I'm just extremely dumb.)
Answer:
I assume the answer would be that f(x) = 6(x) increases over the interval x = 3 to x = 4
Step-by-step explanation:6 x 3 is 18 and 6 x 4 is 24, so over the interval x = 3 to x = 4 f(x) would increase.
20
Step-by-step explanation:
200 divided by 10 equals 20
Solve 28 + 7y =91
Y=.....
Answer:
[tex]y = 9[/tex]
Step-by-step explanation:
[tex]28 + 7y = 91 \\ 7y = 91 - 28 \\ 7y = 63 \\ \frac{7y}{7} = \frac{63}{7} \\ y = 9[/tex]
Answer:
Y=9
Step-by-step explanation:
28 + 7y =91
first subtract 28 from both sides
28-28+7y=91-28
7y= 63
then divide both sides by 7
7y/7=63/7
y=9
ANSWER CHECK
to see if the answer is correct substitute the answer you got for the variable
y=9
28 + 7(9)
multiply 7 and 9
7(9)=63
63+28= 91
The area of the base of this rectangular prism is 6 in.². The height is 12 inches. What is the volume of the rectangular prism?
Answer:
72 in^3
Step-by-step explanation:
The volume is found by V=Bh meaning volume = area of the base * height
V = 6 * 12
V = 72
A town has a population of 17000 and grows at 4% every year. What will be the population after 12 years, to the nearest whole number?
Answer:
27218
Step-by-step explanation:
y= 17000 (1.04) ^12
y=27217.54772
y= 27218
If a town has a population of 17000. The population after 12 years, to the nearest whole number is 27,218.
PopulationUsing this formula
A=P(1+r/100)^n
Let plug in the formula
A= 17000 (1+.04) ^12
A= 17000 (1.04) ^12
A=17000×1.601032
A=27217.54
A=27218 (Approximately)
Therefore the population after 12 years, to the nearest whole number is 27,218.
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find the equivalent expression: 12a+6b
1)6(6z+6b)
2)6(2a+b)
3)2(6a+4b)
4)2(10b+4b)
Answer:
2
Step-by-step explanation:
12a+6b
factor out 6
6(2a+b)
i'll give 30 points and brainlist
Answer:
100 degrees
Step-by-step explanation:
Arc QM = Arc QN = 130°
Arc MN = 360 - Arc QM - Arc QN
= 360 - 2(130)
= 360 - 260
= 100°