Answer:
30.667 inches of string
Step-by-step explanation:
Solve | 2x - 6 | = |x| by graphing
Answer:
X=2 & X=6
Step-by-step explanation:
If you graph the equation (I recommend using desmos) you can see that X equals 2 & 6.
Tomás is gathering data about the sleeping habits of high school students. So far, he has completed 3 different surveys, each with 70 respondents.
What should Tomás expect as he continues his data-gathering process?
As the number of surveys increases, the mean of the sample means will approach ______, and the means will be ___________.
70 Points
Answer:
The population mean
Normally distributed
Please give me brainliest, I really need it.
a)As the number of surveys increases, the mean of the sample means will approach the population mean.
b)Means will be normally distributed.
What is a normal distribution?A normal distribution is a probability distribution that is symmetric about the mean, and data near the mean are more frequent than data far from the mean.
As the number of surveys increases, we will have more data.
So, the mean of the sample means will approach the population mean.
Means will be normally distributed because each survey has the same number of respondents.
Thus, a)as the number of surveys increases, the mean of the sample means will approach the population mean.
b)Means will be normally distributed.
To get more about normal distribution visit:
https://brainly.com/question/4079902
Is the value 5 a solution to the inequality r + 4 < 7 ?
UHM- I NEED HELP AGAIN- YOU"LL GET 100 POINTS! <3
Answer:
no
Step-by-step explanation:
5+4=9 which is greater than 7
Answer:
No, i don't think so
Step-by-step explanation:
On a BWIA flight, 2/3 of the
passengers are from Trinidad.
If there are 189 passengers
altogether, how many were
from Trinidad?
Answer:
126 passengers from Trinidad.
Step-by-step explanation:
Given that,
On a BWIA flight, 2/3 of the passengers are from Trinidad.
Total passengers = 189
We need to find how many were from Trinidad. It can be calculated by finding 2/3 of 189 such that,
[tex]P=\dfrac{2}{3}\times 189\\\\=126[/tex]
Hence, there were 126 passengers from Trinidad.
What is the value of ?
18 - (2 x ? ) = ? x 4
Answer:
?= 3
Step-by-step explanation:
let x = ？
18-2x=4x
6x=18x
x=3
Answer:
The value of ? is 3
Step-by-step explanation
Lets call ? x
18-2x = 4x
18=6x
3=x
What fractions will make the comparison true? 5/8>
Answer:
7/10
Step-by-step explanation:
i7/10 is greater than 5/8
Like the land bridge people, what factors might have pulled the Solutreans into North America?
overpopulation
job opportunities
better schools
grasses and animals
Answer:
mayne because of grasses and animals
Answer:
D
Step-by-step explanation:
"Two planes leave the airport at the same time. Plane 1 travels just 9 miles east from
the airport while Plane 2 travels 40 miles north from the airport. What is the diagonal
distance from plane 1 and 2?"
I need help with this
Answer:
The length of AB is 18
Step-by-step explanation:
Do the pygotham theorem
24^2 + 7^2 = 625
Square root the answer
[tex]\sqrt{625}[/tex] = 25
Line BO equals 7 because CO is 7 and they are both radiuses
Subtract the answer to the length BO
25 - 7 = 18
18 is the length of AB bro
Can someone help me with this plz??
Answer:
f(-3) = -2(-3)^3 - 3
f(-3) = 54 - 3
f(-3) = 51
g(3) = -5(3) + 4
g(3) = -15+4
g(3) = -11
Hope this helps!
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Given p || q and ∠4 = 130°, find the measure of angles 1, 2, 3, 5, 6, 7, and 8. Label on the diagram.
I NEED HELP ASAP
2.
(02.05 MC)
Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P′Q′R′ has vertices P′(1, −2), Q′(0, 3), and R′(−1, 0).
Plot triangles PQR and P′Q′R′ on your own coordinate grid.
Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P′Q′R′? Explain your answer. (4 points)
Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points)
Part C: Are the two triangles PQR and P′'Q′'R′' congruent? Explain your answer. (2 points)
Answer:
P' = 1/3 P
reflection in the y-axis just changes the sign of all the x-values.
Since P" ≅ P', and P' is smaller than P, P" cannot be ≅ to P
It is, however, similar to P.
Answer:
P' = 1/3 P
Step-by-step explanation:
Reflection in the y-axis just changes the sign of all the x-values. Since P" ≅ P', and P' is smaller than P, P" cannot be ≅ to P . It is, however, similar to P.
Good luck!!
Factor the expression. Rewrite the
expression by factoring the Greatest
Common Factor GCF.
32xy + 24x
GCF
Answer:
8x(4y+3)
Step-by-step explanation:
32xy+24x
GCF is 8x, so factor that out
8x(4y+3)
distribute to check,
32xy+24x
Helpppp!!!
Which equation can be used to find the length -of AC?
Where should you place parentheses in the expression 2 + 6 ÷ 2 + 4 × 3 so that the value of the expression is 16? Multiple choice question
Answer: (2+6)÷ 2 + 4 × 3
Answer:
4x3
Step-by-step explanation:
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Answer: its 3x+20 to my calculations
Step-by-step explanation:
Work out the area of a rectangle with base, b = 20mm and perimeter, P = 60mm.
b
The diagram is not drawn to scale.
base+perimeter
20mm+60mm
=80mm
is (x-4) a factor of 2x^4-9x^3-20x^2+147x-180? find out by using the factor theorem.
Answer: (x-4) is not a factor of the given polynomial.
===================================================
Explanation:
Rule: If (x-k) is a factor of p(x), then p(k) = 0. This is a special case of the remainder theorem. We can take this in reverse to say that if p(k) = 0, then (x-k) must be a factor of p(x).
In this case, we have k = 4 and we can find that:
p(x) = 2x^4-9x^3-20x^2+147x-180
p(4) = 2(4)^4-9(4)^3-20(4)^2+147(4)-180
p(4) = 24
The result we get is not zero, so that means (x-4) is not a factor of p(x).
.On 1st March 2001, the ratio of Freddie’s age to his mother’s age was 1:11
On 1st March 2018, the ratio of Freddie’s age to his mother’s age was 2:5
Write the ratio of Freddie’s age to his mother’s age on 1st March 2030
Answer:
[tex]Ratio =16 : 31[/tex]
Step-by-step explanation:
Let
x = Freddie's age and y = His mother's age
Given
2001:= [tex]x : y = 1 : 11[/tex]
2018:= [tex]x +17: y + 17= 2 : 5[/tex]
Required
The ratio of their age in 2030
[tex]x : y = 1 : 11[/tex]
[tex]x +17: y + 17= 2 : 5[/tex]
Express as fractions
[tex]\frac{x}{y} = \frac{1}{11}[/tex] --- (1)
[tex]\frac{x+17}{y+17} = \frac{2}{5}[/tex] -- (2)
In (1), make y the subject
[tex]\frac{x}{y} = \frac{1}{11}[/tex]
[tex]y = 11x[/tex]
Substitute [tex]y = 11x[/tex] in (2)
[tex]\frac{x+17}{y+17} = \frac{2}{5}[/tex]
[tex]\frac{x+17}{11x+17} = \frac{2}{5}[/tex]
Cross Multiply
[tex]5(x +17) = 2(11x + 17)[/tex]
[tex]5x +85 = 22x + 34[/tex]
Collect like terms
[tex]22x - 5x = 85 - 34[/tex]
[tex]17x = 51[/tex]
[tex]x =3[/tex]
[tex]y = 11x[/tex]
[tex]y = 11*3[/tex]
[tex]y = 33[/tex]
This means that: In 2001, Freddie was 3 and his mother was 33
In 2030 (29 years after);
Freddie will be: 3 + 29 = 32
His mother will be: 33 + 29 = 62
So, the ratio is:
[tex]Ratio =32 : 62[/tex]
Divide by 2
[tex]Ratio =16 : 31[/tex]
La densidad del agua es 1g/cc determinar su equivalente en libras/pie3 y en kg/m3
Answer:
Las equivalencias de la densidad del agua son: Densidad kg/m3 = 1000 kg/m3. y Densidad lb/pie3 = 0.016 lb/pie3. Explicación paso a paso: La densidad del agua es de 1g/cc = 1 g/cm3.
F(x,y)=-2x^2-2xy-2y^2+35x+42y-158
Answer:
x^3 + x^2 + 2x^2y + xy^2 + y^2 + 2xy
Step-by-step explanation:
ihope makaktulong
if wrong correct me
figure above shows a bkock of isometric projection draw the 1st angle projection taking F a as a font elevation
117AUG 2017
Answer:
ufhvuaejahejgjbhrthugjwergkwer
Step-by-step explanation:
erlgluerhbferihgqerhggyefuqwheuhqhwgh4ht43y3yhebr
Solve for X: |x-7|=8
Please help
Answer:
x=1
Step-by-step explanation:
remember ll means absolute value
the absolute value of x is x and the absolute value of -7 is 7
now we have x+7=8
step 1 subtract each side by 7
7-7 cancels out
8-7=1
we're left with x = 1
A number decreased by the sum of the number and seven. what is the algebraic expression?
Answer:
Step-by-step explanation:
n-(7+n) which is a strange problem to give you as that is equal to
n-7-n which always equals -7
And that means n can be any real number and the expression still equals -7
The algebraic expression will be -7. x is the assumed algebraic expression. The equation is solved by subtraction.
What is an algebraic expression?An algebraic expression is a phrase that has been combined using operations like addition.
Let n is the number and x be the solution for the given condition;
If the number is decreased by 7 then the equitation will be (n-7).
From the given condition;
[tex]\rm x=\rm n-(n-7) \\\\ x=n-n-7 \\\\ x=-7[/tex]
Hence the algebraic expression will be -7.
To learn more about the algebraic expression refer to the link;
https://brainly.com/question/953809
Find the logarithm of 2025 to the base 3√5
Answer:
3.99 ≈ 4
Step-by-step explanation:
I wish this is correct
What is the slope between the points (2,5) and (6,13)
Let me = slope
m = (13 - 5)/(6 - 2)
m = 8/4
m = 2
The slope is 2.
Yes or No: Is this triangle a Right Triangle with side measures 21, 28, 352
Evaluate :
32¯2/5 how do i evaluate this? With the minus.
Answer:
I'm sorry I don't know the answer. But have you tried Photomath? it helps me so much! have a good day/night! ❤️
Simplify the expression (8n^4-6n+8n^2)+(6n^4-4)
Answer:
(8n^4-6n+8n^2)+(6n^4-4)
8n^4 + 8n^2 - 6n + 6n^4 - 4
14n^4 + 8n^2 - 6n - 4
Step-by-step explanation: