Plz help me well mark brainliest if you are correct!!....
Answer:
1st option
Step-by-step explanation:
the point is at the middle between -2 and -1
Use the accompanying descriptive statistics output to calculate a 99% lower confidence bound for true average ultimate tensile strength, and interpret the result.
N Mean Median TrMean StDev SE Mean
153 135.39 135.40 135.41 4.59 0.37
Minimum Maximum Q1 Q3
122.20 147.70 132.95 138.25
Answer:
Lower confidence boundary = 134.525
μ ≥ 134.525
Step-by-step explanation:
From the data:
Sample size, n = 153
Sample mean, xbar = 135.39
Standard deviation, s = 4.59
Zcritical at 99% = 2.33 (one sided)
Confidence interval :
Xbar ± standard Error
Standard Error = Zcritical * s/√n
Standard Error = 2.33 * 4.59/√153 = 0.865
Lower boundary:
Xbar - standard error
135.39 - 0.865 = 134.525
μ ≥ 134.525
We Can be 99% confidence that the true average ultimate tensile strength is atleast 134.525
will give Brainiest if you are right
Answer:
H. x - 8 ≤ 15 is correct I think.
Step-by-step explanation:
Have a nice day!
Find the slope and the y-intercept of the line y=6x-3
Answer:
-18
Step-by-step explanation:
y=6x-3
6x-3=-18
-18=6x-3
Answer:
intercept: -3
slope: 6
Step-by-step explanation:
The number in the back and the operations are the y-intercept and the number multiplied by x is the slope.
Use front-end rounding to estimate the sum:
Answer:
Ermm there no question bud, whats the question?
is the focus always in the parabola
Answer:
Yes
Step-by-step explanation:
The focus of a parabola is always inside the parabola; the vertex is always on the parabola; the directrix is always outside the parabola.
Find x
picture listed
Answer:
x = 15
Step-by-step explanation:
A full circle = 360°
Therefore,
(8x - 10)° + (6x)° + (10x + 10)° = 360°
Solve for x
8x - 10 + 6x + 10x + 10 = 360
Add like terms
24x = 360
Divide both sides by 24
x = 360/24
x = 15
PLEASE HELP WITH THIS GEOMETRY ASSIGNMENT... IT WOULD MEAN A LOT BEING IT'S HALF MY GRADE... AND PLEASE EXPLAIN IT SO I CAN FINALLY UNDERSTAND OR IF YOU DONT WANT TO GIVE ME THE ANSWER JUST TELL ME HOW TO DO IT. THIS IS FORM IS FROM PLATO OR EDMENTRUM IF YOU WILL.L...
Question 2
The vertex form of the equation of a horizontal parabola is given by , x=1/4p(y-k)2+h where (h, k) is the vertex of the parabola and the absolute value of p is the distance from the vertex to the focus, which is also the distance from the vertex to the directrix. You will use GeoGebra to create a horizontal parabola and write the vertex form of its equation. Open GeoGebra, and complete each step below.
Part A
Mark the focus of the parabola you are going to create at F(-5, 2). Draw a vertical line that is 8 units to the right of the focus. This line will be the directrix of your parabola. What is the equation of the line?
Part B
Construct the line that is perpendicular to the directrix and passes through the focus. This line will be the axis of symmetry of the parabola. What are the coordinates of the point of intersection, A, of the axis of symmetry and the directrix of the parabola?
Part C
Explain how you can locate the vertex, V, of the parabola with the given focus and directrix. Write the coordinates of the vertex.
Part D
Which way will the parabola open? Explain.
Part E
How can you find the value of p? Is the value of p for your parabola positive or negative? Explain.
Part F
What is the value of p for your parabola?
Part G
Based on your responses to parts C and E above, write the equation of the parabola in vertex form. Show your work.
Part H
Construct the parabola using the parabola tool in GeoGebra. Take a screenshot of your work, save it, and insert the image below.
Part I
Once you have constructed the parabola, use GeoGebra to display its equation. In the space below, rearrange the equation of the parabola shown in GeoGebra, and check whether it matches the equation in the vertex form that you wrote in part G. Show your work.
Part J
To practice writing the equations of horizontal parabolas, write the equations of these two parabolas in vertex form:
focus at (4, 3), and directrix x = 2
focus at (2, -1), and directrix x = 8
equation is below...
y=[tex]y=\frac{1}{4p} (x-h)^{2} +k[/tex]
Answer:
OH MY GOD!!! GIRL IMMA TRY!
Step-by-step explanation:
It gave me out of time. Its understandable but search your answers up online and you'll find the answers! SORRY
The function F(x) = log2 x is increasing.
True or false
Answer: i think true
Step-by-step explanation:
help me pls (: l: ):
Fraction: 5/10
Demical: 0.5
Percent: 50%
Simplify the expression to show 7m+4n-m-2n
Answer:
6m + 2n
Step-by-step explanation:
we have to added up the like therms
like therms are therms that have the same literal part
6m + 2n
Answer:
7m-m+4n-2n
m(7-1)+2n(2-1)
m(6)+2n(1)
6m+2n
3 + 6x = 15?
pls help :D
Answer:
x = 2
Step-by-step explanation:
3 + 6x = 15
rearrange to 6x + 3 = 15
subtract 3 to both sides 3 - 3 and 15 - 3
simplify 6x = 12
x = 2
Solve for x in the following equation: -4+6x=8
A. x=-2
B. x=4
C. x=2
D. x=-6
Answer:
the answer is C............
3/7 I took the i ready today
Answer:
0.42857142857
Answer:
0.428
Step-by-step explanation:
The circumference of a circle is 18.84 inches. What is the circle's diameter?
Answer:
6
Step-by-step explanation:
The circles diameter is 6 because circumference is found when you do pi x diameter and since 18.84 ÷ 3.14 = 6 that means our diameter is 6
Hope this helps!
13 is one third of a number
m
Answer:39
Step-by-step explanation: 13 x 3= 39
Answer:
13 = (1/3)m
Step-by-step explanation:
The word "is" is used when saying "equals"
"One third of a number m" is telling you to multiply (1/3) times "m".
Evaluate the expression: 2b + 9 when b = 3 *
A 3
B 11
C 14
D 15
Step-by-step explanation:
2b + 9
b = 3
6+9
=15
!!!!!!!!!!!!
Answer:
14
Step-by-step explanation:
Which angle mesuare is greater
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
You can see angle B is much smaller than angle A because Angle B is an acute angle (smaller than 90°) while angle A isn't.
Round to the nearest hundredth (2 decimal places) when necessary
Answer:
volume = 693 m²
Step-by-step explanation:
volume = 21 x 33 = 693 m²
unit 8 triangles and trigonometry quiz 8-2 please help me with all
Answer:
i think 6
Step-by-step explanation:
hope this helps
Which letter corresponds to the base?
Which letter corresponds to the slant height?
Which letter corresponds to the height?
Answer:
letter corresponds to the base=b
letter corresponds to the slant height=s
letter corresponds to the height=,h
What type of angles are 25 and 26?
Answer:
[tex]{\huge\red{\fbox{{࿐αɴѕωєя࿐}}}}[/tex]
< 5 & < 6 are supplementary angles.
Step-by-step explanation:
Together they form a linear pair & sum up to 180°.
< 5 + < 6 = 180° (supplementary angles)
13. Solve the equation x2 + 6x – 3 = 0 by completing the square.
Answer:
here is the answer
hope you find those helpful :)
during 3 days joy the cat was catching mice .Each day joy caught 3 mice more than the previous day .On the third day joy caught twice as many mice as on the first day . In total
how many mice did joy catch during the three days
Answer: 27
Step-by-step explanation:
Given
During 3 days the cat was catching mice
Suppose the first-day joy caught x mice
So, on the second day, it is x+3
on the third day, joy catches twice as many mice as on the first day i.e. 2x
or we can also write, no of mice caught on the second day plus 3 is equal to no of mouse caught on the third day
[tex]\Rightarrow x+3+3=2x\\\Rightarrow x=6[/tex]
In three day time, it is
[tex]\Rightarrow x+x+3+2x\\\Rightarrow 4x+3\\\Rightarrow 4\times 6+3=27[/tex]
HELP ME PLEASEEEEEEEEEEEE
Answer:
L
Step-by-step explanation:
The first number is always x-coordinate. And amongst all only J and L has positive x-coordinates. With J y-coordinate is also positive so it should be L
What does the consumer price index measure?
ΟΑ.
the change in prices of all goods and services over time
ОВ.
the change in prices of specific goods and services over time
Ос.
the change in prices of final goods and services over time
Answer:
Α. the change in prices of all goods and services over time
Step-by-step explanation:
sorry if I'm wrong
The table shows a linear relationship between x and y.
Answer:
slope=-9/2
y int- 6
Step-by-step explanation:
okay lets take two points
-2,15 and -6,33
the slope is 33-15/ -6-(-2)= 18/-4=-9/2
equation is y=mx+b where m is slope and b is y intercept
so plugging values in we get
15=-2(-9/2)+b
15=9+b
b=6
HELPPPPP I NEED ANSWERS PLSSSSS
a book sold 31,300 copies in its first month of release. Suppose this represents 9.7% of the number of copies sold to date. How many copies have been sold to date?
Round your answer to the nearest whole number
Answer:
the number of copies have been sold to date is 3,036 copies
Step-by-step explanation:
Given that
There is 31,300 book copies sold in the first month
And, this represent 9.7% of the number of copies sold to date
we need to find out the no of copies have been sold to date
So,
= 31,300 copies × 9.7%
= 3,036 copies
Hence, the number of copies have been sold to date is 3,036 copies
Therefore the same would be considered and relevant too
what's 2x + 60 = 100?
Answer:
x= 20
Step-by-step explanation:
2x + 60 = 100
> subtract 60 both sides
2x = 40
> divide both sides by 2
x= 20
Answer:
20
Step-by-step explanation:
2x+60=100
-60
2x=40/2
x=20