Answer:
-6
Step-by-step explanation:
First we need to factorize the given expression
2x^2 - 5x - 3,
2x^2 - 6x+x - 3
The two number that we are going to use to split -5x are -6 and 1
Hence the required two numbers are -6 and 1
Let p = -6
Let q = 1
Taking their sump+q = -6 + 1 = -5
Take the product
p*q = -6 * 1
p*q = -6
hence the product is equal to -6
Alexander order 24 dozen eggs for her restaurant 8 of the eggs arrived broken how many unbroken eggs this year received
Answer:
4 eggs
Step-by-step explanation:
Please help I’ll mark you as brainliest if correct!!
Answer:
230 in²
Step-by-step explanation:
14×5=70×3=210
(5×4)÷2=10×2=20
210+20=230
Answer:
It should be 161.5
Step-by-step explanation:
Sorry it’s gonna take long time to explain, but I guess that’s the right answer
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately Normally distributed with 367 minutes and standard deviation 64 minutes. The mean number of minutes of daily activity for lean people is approximately Normally distributed with 525 minutes and standard deviation 110 minutes. A researcher records the minutes of activity for an SRS of 8 mildly obese people and an SRS of 8 lean people. (a) What is the probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes
Answer:
0.0721 = 7.21% probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using 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.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately Normally distributed with 367 minutes and standard deviation 64 minutes.
This means that [tex]\mu = 367, \sigma = 64[/tex]
A researcher records the minutes of activity for an SRS of 8 mildly obese people.
This means that [tex]n = 8, s = \frac{64}{\sqrt{8}} = 22.63[/tex]
(a) What is the probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes?
This is 1 subtracted by the pvalue of Z when X = 400. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{400 - 367}{22.63}[/tex]
[tex]Z = 1.46[/tex]
[tex]Z = 1.46[/tex] has a pvalue of 0.9279
1 - 0.9279 = 0.0721
0.0721 = 7.21% probability that the mean number of minutes of daily activity of the 8 mildly obese people exceeds 400 minutes
choose the scatter plot in which the outlier is highlighted
Answer:
its the second graph top right
Step-by-step explanation:
an outlier is a point that deviates from the rest
Matt walked 1 mile in 15 minutes.
At this rate, how many miles would
he walk in 2 hours?
HELP PLS
Answer:
8 miles he will walk in 2 hours
Step-by-step explanation:
This is because there are four 15 minute sets in one hour meaning in two hours you will encounter 8 of these sets.
Answer:
8 miles
Step-by-step explanation:
we can get the answer using the distributive property, if we multiply 4 by 15 we get 60 and 60 minutes is an hour so if we do that twice we get 2 hours so now that we've done that we will do the same with the mileage by multiplying the amount we did to the time to the distance and we get 8 miles
An athlete plans a 12 mile run. If the athlete runs 4 miles each hour, he, which expression represents the number of miles the athlete has left in the run after running for h hours
Answer:
12-4h
Step-by-step explanation:
Answer:
12-4h
Step-by-step explanation:
hope it helps .
HELLPP PLSS ASAPP!! THANKSS
Answer:
12
Step-by-step explanation:
Answer:
[tex]12[/tex]
Step-by-step explanation:
1) Simplify 4² to 16.
[tex] \frac{ - \frac{1}{3} \times - 33 - \frac{1}{2} \times 16 }{ \frac{1}{4} } [/tex]
2) Move the negative sing to the left side.
[tex] \frac{ - ( - \frac{33}{3}) - \frac{1}{2} \times 16 }{ \frac{1}{4} } [/tex]
3) Simplify 33/3 to 11.
[tex] \frac{ - ( - 11) - \frac{1}{2} \times 16 }{ \frac{1}{4} } [/tex]
4) Simplify 1/2 × 16 to 16/2.
[tex] \frac{ - ( - 11) - \frac{16}{2} }{ \frac{1}{4} } [/tex]
5) Simplify 16/2 to 8.
[tex] \frac{ - ( - 11) - 8}{ \frac{1}{4} } [/tex]
6) Remove parentheses.
[tex] \frac{11 - 8}{ \frac{1}{4} } [/tex]
7) Simplify 11 - 3 to 8.
[tex] \frac{3}{ \frac{1}{4} } [/tex]
8) Invert and multiply.
[tex]3 \times 4[/tex]
9) Simplify.
[tex]12[/tex]
Therefor, the answer is 12.
Find the length of the missing side. Simplify the radical if necessary
22 ft
26 ft
24 ft
28 ft
Answer:
26
Step-by-step explanation:
24²+10²=x²
676=x²
x=√676
x=26
Pythagorean theorem
Can you help me on question 17?!
Answer:
x³+57
step by step explanation
help me and i givee points give me correct answer
Answers:
Fractions A
Red flower fraction== 40/100
Purple flower fraction=47/100
Trees fraction=7/100
Decimals
Orange flower decimal=0.06
Trees decimal=0.07
Percents
Red flower percent=40%
Orange flower percent=6%
Purple flower percent=47%
Ask for help when you need it, I'm here until 2:30
I hope this helps!
If you need more help, don't hesitate to ask!
May I have brainliest, please?
solve x-19 <81. then graph the solution.
Answer:
x<100 and look at picture
Step-by-step explanation:
x-19<81
+19 +19
x<100
+100 on number line, opened line to the left
X<100
Step-by-step explanation:
x-19<18
+19 +19
x<100
+100 on number line, opened line to the left
Solve the following equation. Then place the correct number in the box provided.
Answer:
x ≤ 6
Step-by-step explanation:
2x-1 ≤ x+5
Subtract x from each side
2x-x-1 ≤ x-x+5
x-1 ≤ 5
Add 1 to each side
x-1+1 ≤ 5+1
x ≤ 6
(4/2)4 + (1 + 3)?
I really need help!
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{Just do PEMDAS}[/tex]
[tex]\large\text{Parentheses}[/tex]
[tex]\large\text{Exponents}[/tex]
[tex]\large\text{Multiplication}[/tex]
[tex]\large\text{Division}[/tex]
[tex]\large\text{Addition}[/tex]
[tex]\large\text{Subtraction}[/tex]
[tex]\mathsf{(\dfrac{4}{2})(4) + (1+3)}[/tex]
[tex]\mathsf{\dfrac{4}{2} = 2}[/tex]
[tex]\mathsf{2(4) + (1 + 3)}[/tex]
[tex]\mathsf{2(4) = 8}[/tex]
[tex]\mathsf{8 + (1 + 3)}[/tex]
[tex]\mathsf{1 + 3 = 4}[/tex]
[tex]\mathsf{8 + 4 = 12}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \bf \huge12 }}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day! }[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Solve each inequality.
1. 5x + 2 <17
Answer:
x<3
Step-by-step explanation:
5x+2<17
Subtract 2 from both sides.
5x<17−2
Subtract 2 from 17 to get 15.
5x<15
Divide both sides by 5. Since 5 is positive, the inequality direction remains the same.
x=15/5
Divide 15 by 5 to get 3.
x<3
Find Cecilia’s average monthly income if her biweekly take-home pay is $764.00. Help please. Will give braineliest
I am trying to solve this but I don't understand.
Answer:
a = 42 b = 21
Step-by-step explanation:
a is 42 since it ks vertically opposite 42
To solve for b
360 - (42×2)........to get the angle next to a
=276... Divde answer by 2. Bc there are two of the angles
276÷2 =138
138 + 2b =180
2b = 180 - 138
b = 42 ÷ 2
b = 21
What's the part B answer, It says "Justify your answer from part A"
If the cost of 8 pizzas is $74, what is the cost per pizza? Use a proportion to solve.
Answer:
9.25
Step-by-step explanation:
Answer:
$9.25
Step-by-step explanation:
8 is to $74 as 1 is to x
8/74 = 1/x
4/37 = 1/x
4x = 37 * 1
x = 37/4
x = 9.25
Answer: $9.25
What is the difference between (-12)² and -12²?
What is the equation of the line
Answer:
y = 0
Step-by-step explanation:
Name the two congruent triangles
[tex] \boxed{ \blue{Answers + Explain}} [/tex]
the two triangles are congruent. Because it has sides that match and are the same length.
.
the corresponding side is:
[tex] \rm AC \cong CE [/tex][tex] \rm CD \cong BC [/tex][tex] \rm AD \cong BE [/tex].
the corresponding angle is:
[tex] \rm \angel{CAD} = \angel{BEC} [/tex][tex] \rm \angel{ADC} = \angel{EBC} [/tex][tex] \rm \angel{ACD} = \angel{BCE} [/tex]please give me the answer
Please Help!
Car X travels 174 miles in 3 hours.
Answer:
The graph =
y = 58xStep-by-step explanation:
(a)
distance covered (y) = 174 miles
time taken (x) = 3 hours
Therefore the points = (3, 174) and (0, 0) = stationary position
Find the gradient (m)
m = 174-0 / 3-0
m = 58
Therefore the equation =
y = 58x(distance = 58 × time)
For the distance = 174 and time = 3 hours, the equation to find either distance or time = y = 58x
(b) the graph is constant, because the time and distance are also contant when the speed used is the same.
____________________
#IndonesianPride - kexcvi
What is the product?
Answer:
C
Step-by-step explanation:
The image below shows four soccer balls at different
locations on an uneven soccer field. Which ball has the
greatest amount of kinetic energy? Explain your answer.
Answer: letter d
Step-by-step explanation:
Answer:
Ball D. Among the four balls in this picture, ball D is the only one whose kinetic energy is greater than [tex]0[/tex].
Step-by-step explanation:
Consider an object of mass [tex]m[/tex]. If this object is moving at a speed of [tex]v[/tex], the kinetic energy of this object would be:
[tex]\displaystyle \frac{1}{2}\, m \cdot v^{2}[/tex].
The speed [tex]v[/tex] of ball A, B, and C are all [tex]0[/tex]. Hence, the kinetic energy of these three balls would be [tex]0\![/tex].
The speed of ball D is greater than [tex]0[/tex]: [tex]v = 2\; \rm m \cdot s^{-1}[/tex]. The kinetic energy of this ball would be:
[tex]\begin{aligned} {\rm KE} &= \frac{1}{2}\, m \cdot v^{2} \\ &= \frac{1}{2}\times \rm 0.43\; \rm kg \times \left(2\; \rm m \cdot s^{-1}\right)^{2}\\ &= 0.86\; \rm J\end{aligned}[/tex].
Hence, the kinetic energy of ball D is the greatest among the four balls in this picture.
Which graph best represents a function with zeros of -4, -2, and 4?
Answer:
D.
Step-by-step explanation:
The line goes through those points
The polynomail that represents the graph will be g(x) = (x + 4)(x + 2)(x - 4). Then the correct option is D.
How to get polynomials with zeroes?Let a, b, c, and d are the zeroes of the polynomial.
Then the polynomial is given as,
⇒ (x - a)(x - b)(x - c)(x - d)
The degree of the polynomial will be greater than or equal to the number of zeroes.
The zeroes of the function are -4, -2, and 4. Then the factor of the equation is given below.
x = - 4
x + 4 = 0
x = -2
x + 2 = 0
x = 4
x - 4 = 0
Then the polynomial is given below.
g(x) = (x + 4)(x + 2)(x - 4)
The polynomail that addresses the chart will be g(x) = (x + 4)(x + 2)(x - 4). Then the right choice is D.
More about the polynomial link is given below.
https://brainly.com/question/11536910
#SPJ5
2 [ 32 - (4-1) to the third power ]
Answer:
The correct answer is 10 hope this helps can u pls give me brainliest
Step-by-step explanation:
The solution of the given expression is 10.
What is simplification of an expression?Usually, simplification involves proceeding with the pending operations in the expression. Like, 5 + 2 is an expression whose simplified form can be obtained by doing the pending addition, which results in 7 as its simplified form.
A Simplification usually involves making the expression simple and easy to use later.
WE have been given 2 [ 32 - (4-1) to the third power ]
Solving it further;
2 [ 32 - (4-1) to the third power ]
2 [ 32 - (4-1)^{3} ]
2 [ 32 - (3)^{3} ]
2 [ 32 - 27 ]
2 [5]
10
Therefore, the solution of the given expression is 10.
Learn more about simplification;
https://brainly.com/question/17579585
#SPJ6
Mr. Brown purchased tires for his car. The tires were $75 each, including tax, plus $10 for installation. Mr. Brown paid $160 for the tires and installation. Which equation can be used to find the number of tires, t, Mr. Brown purchased?
A. t = 160 + 75(10)
B. 75 + t(10) = 160
C. 75t + 10 = 160
D. 160t – 75 = 10
Answer:
C. 75t + 10 = 160
Step-by-step explanation:
Given that
The tire was $75 each
also there is a $10 for installation charges
For both he paid $160
Now based on the above equaton
The equation that applied to determine the number of tires i.e. t is
75t + 10 = 160
Find the value of the expression below pls help
Answer:
D 1/16
Step-by-step explanation:
(1/2)^4=.0625
.0625= 1/16
In Mr.Wilson's math class the average of the 20 test scores that was 82. When the top 5 scores were eliminated, the average of the remaining scores was 78. What was the average of the top 5 scores that were eliminated
Answer:
82, 81, 80, 79, 78
Step-by-step explanation:
I dont know if this will help but hope it does
Answer:
vgfvxdvcvsdvcvdbxvbvdvxfvwcvtgrvfrwevtfcrdsvgvferfdvfecdfdvgtvtfgcevgbtrvthytrjgrvhc
Step-by-step explanation: