Answer:
(2.5, 0)
Step-by-step explanation:
The point in which a line crosses the x-axis is also known as the x- intercept. x-intercepts occur at y= 0, so let's substitute y= 0 into the equation and solve for x.
2x +y= 5
When y= 0,
2x +0= 5
2x= 5
Divide both sides by 2:
x= 2.5
Thus, the coordinate is (2.5, 0).
What is the approximate diameter of a sphere with a volume of 113 cm^3
Answer:
B. 6 cm
Step-by-step explanation:
[tex]\text{Take the volume of a sphere and solve for r.}\\V=\frac{4}{3}\pi r^3\\\text{We already know that the volume is 113, so substitute that value.}\\113=\frac{4}{3}\pi r^3\\\text{Divide both sides by 4/3 pi.}\\\frac{113}{\frac{4}{3}\pi}=r^3\\\text{Divide 113 by 4/3 pi.}\\r^3=26.98\\\text{For a more accessible value, round up.}\\r^3 \approx27\\\text{Take the cube root of both sides.}\\r=3[/tex]
Now that the radius is known, all we have to do is multiply it by 2 to get the diameter. Here the answer is simply 3 * 2, or 6.
Answer:
B. 6 cm
Step-by-step explanation:
You can use the formulas [tex]d=(\frac{6V}{\pi } )^{\frac{1}{3} }[/tex] or [tex]d = \sqrt[3]{\frac{6V}{\pi } }[/tex] to solve for diameter using volume. I will use the first forumla for this problem.
1. Substitute 113 for "V":
[tex]d=(\frac{6(113)}{\pi }) ^{\frac{1}{3} }[/tex]
2. Multiply in the parenthesis:
[tex]d=(\frac{678}{\pi } )^{\frac{1}{3} }[/tex]
3. Divide by pi (3.14):
678 ÷ 3.14 = 215.923567
[tex]d=215.9^{\frac{1}{3} }[/tex]
4. Apply the exponent:
d = 5.99907...
d = 6 cm
hope this helps!
Which expression is equivalent to -6x + 7.5?
A. -3(2x-2.5)
B.
-3(2x + 2.5)
C.
-3(2x-7.5)
D. -3(2x + 7.5)
Answer:
[A] -3(2x-2.5)
Step-by-step explanation:
Given:
Which expression is equivalent to -6x + 7.5?
Solution:
Going through all answer choices:
[A] -3(2x-2.5)
Simplify
-6x + 7.5
[B] -3(2x + 2.5)
Simplify
-6x - 7.5
[C] -3(2x-7.5)
Simplify
-6x+22.5
[D] -3(2x + 7.5)
Simplify
-6x - 22.5
Hence, the answer is [A] -3(2x-2.5)
Kavinsky
- 6x + 7.5
If you we split this equation then we'll get -3(2x-2.5).
Because,
- 3 × 2x gives -6x(-3) × - 2.5 gives + 7.5Hope it helpsCan someone please help me im kinda confused
Answer:
The Snack Shop
Step-by-step explanation:
The equation given, y=1.25x means this store sells a bar of granola for $1.25.
The other store sells their granola bar for $1.30.
1.25 is less than 1.30.
Hence, the snack shop sells their granola bars for a lower price.
help please !! and i’ll mark brainliesttttt
Answer: A
Step-by-step explanation:
Kyle and Josh have 70 cds. Kyle has 8 more cds than Josh. How many cds does each boy have?
Answer: Kyle has 39 and Josh has 31
Step-by-step explanation:
you do 70-8 which equals 62 then divide by 2 which is 31. But Kyle has 8 more so add 31+8 so Josh has 31 and Kyle has 39
11
In the equations below, x is the independent variable, and y is the dependent variable
Equation Number
1
2.
Equation
4y = 3x
8y = 5x
= 6x
5y = 8x
3
8y =
4.
Which two equations have the same constant of proportionality?
А 2 and 4
B
2 and 3
с
1 and 3
D
1 and 2
Using a proportional relationship, it is found that the two equations that have the same constant of proportionality are givn by:
с 1 and 3
What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
In this problem, the functions and constants are given as follows:
1. 4y = 3x -> k = 3/4.2. 8y = 5x -> k = 5/8.3. 8y = 6x -> k = 6/8 = 3/4.4. 5y = 8x -> k = 8.5.Equations 1 and 3 have the same constants, hence option c is correct.
More can be learned about proportional relationships at https://brainly.com/question/10424180
pls help
asap
-
-
-
-
-
thx
simplify
(1/4 + 5/2) -2
please show step by step
Answer:
3/4
Step-by-step explanation:
1/4+5/2=1/4+10/4=11/4=2 3/4-2=3/4
ABCD represents the plan of a field.
There is a path across the field that
starts at a
is the same distance from BA and BC.
Using ruler and compasses, show the position of the path.
A quadrilateral is a polygon with 4 number of sides and 4 vertices. The shape of the field is either square or a rhombus.
What is a quadrilateral?A quadrilateral is a polygon with 4 number of sides and 4 vertices. A few examples of a quadrilateral are square, rectangle, rhombus, parallelogram, etc.
Given that ABCD represents a field, therefore, the field is a quadrilateral. Now, as the path is going between the field. And starts from A therefore, it will end at C.
Since It is the same distance from BA and BC. Therefore, it will be the diagonal of the quadrilateral. And as BA and BC are consecutive sides and are of the same length.
Hence, the shape of the field is either square or a rhombus.
Learn more about Quadrilateral:
https://brainly.com/question/13805601
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What is the image of (-8,-12) after a dilation by a scale factor of 1/4 centered at the origin?
Answer: Find the equation with a point and y-intercept.
y = 49/32x + 1/4
image below
EMERGEBCY I NEED TBIS BRO LIKE IN 5 MINHTES DUDE
Answer:
Below in bold.
Step-by-step explanation:
The defender is at (x) = 35 yards
So height y = (-1/40)35^2 + 35 + 6 = 10.375 ft
So as he only jumps to 9 feet he will not prevent the catch
Simon and Mike are brothers
and are in charge of
walking their dog Buster. Mike walks the dog
every 3 days and Simon walks the dog every 4
days. On what day will they end up walking Buster
together?
Answer:
1
Step-by-step explanation:
5- G F -5- Triangle EFG is reflected across the y axis, and then reflected across the x axis. The coordinates of point G before the reflections are (-3.4).
Need a little help!
Answer:
(3,-4)
Step-by-step explanation:
QI=(+,+)
QII=(-,+)
QIII=(-,-)
QIV=(+,-)
Answer:
(3,-4)
Step-by-step explanation:
you are roating the triangle down (across the y-axis) and then moving to the right (across the x-axis). I hope this helps!
Help!!!! I will give Brainlist - Which graph best represents a function with a range of all real numbers greater than or equal to 8?
Answer:
it’s D, I just
Took the quiz
Answer:
Correct answer is C.
Step-by-step explanation.
what is the equation (x-10)^2
Answer:
Step-by-step explanation:
(x - 10)² is not an equation. It is in factorized form. If you do not mention the equals sign, then that is not an equation. But however, this factorized form can be converted to expanded form using Algberaic formulae. The formulae are,
(a - b)² = a² - 2ab + b², (a + b)² = a² + 2ab + b²
According to the question,
a = x and b = 10
(x - 10)² = x² - 2 (x)(10) + 10²
= x² - 20x + 100
x² - 20x + 100 is the expanded form of (x - 10)².
The perimeter of a triangle is 104 units. The combined length of two of the sides of the triangle is 64 units. What is the length of the third side of the triangle in units? A 168 units B 6,656 units C 40 units D 1.625 units
Answer:
40<x<168
Step-by-step explanation:
Find the missing exterior angles in triangle
Answer:
working on the two will edit this ans afterwords
slide 1) Write an equation in point slope form that passes through the point (1,8) & slope of -3 y-y,=m(x-x₁) 2) Write the equation in slope intercept form.
[tex](\stackrel{x_1}{1}~,~\stackrel{y_1}{8})\qquad \qquad \stackrel{slope}{m}\implies -3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{8}=\stackrel{m}{-3}(x-\stackrel{x_1}{1}) \\\\\\ y-8 = -3x+3\implies y=-3x+11[/tex]
8. A computer application generates a sequence of musical notes using the function f(n) 6(16)", where n is the
number of the note in the sequence and f(n) is the note frequency in hertz. Which function will generate the same
note sequence as fon)?
A g(n) = 12(2)
B. H(n) – 6(2) n
C. P(n) = 12(4)2n
Dk(n) = 6(8)an
Applying an exponential property, it is found that the function that will generate the same note sequence as function f(n) is given by:
B. [tex]H(n) = 6(2)^{4n}[/tex]
What is function for the note sequence?The function for the node sequence is defined by:
[tex]f(n) = 6(16)^n[/tex]
A function that will the same note sequence as function f(n) has the same initial value of 6. Additionally, applying an exponential property, we have that:
[tex]H(n) = 6(2)^{4n} = 6(2^4)^n = 6(16)^n[/tex]
Hence option B is correct.
More can be learned about exponential properties at https://brainly.com/question/25537936
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There are 27 open spots to compete in the fishing tournament. If each boat can hold 5 people, how many boats are needed to hold all 27 competitors during the tournament?
WILL GIVE BRAINLIEST TO WHOEVER CAN SOLVE THIS CORRECTLY
Answer:
C ∪ D = (-∞, 2] ∪ (7, ∞)
C ∩ D = Ø (empty)
Step-by-step explanation:
C ∪ D: The union of two sets or intervals is the set of elements which are in either set.
C ∩ D: The intersection of two sets or intervals is the set of elements which are in both sets.
Interval notation symbols
Square brackets [ ]: both endpoints are included in the set.
Round brackets ( ): both endpoints are excluded in the set.
Round, square ( ]: left endpoint is excluded and right endpoint is included in the set.
Square, round [ ): left endpoint is included and right endpoint is excluded in the set.
Given:
C = {x | x ≤ 2} D = {x | x > 7}Therefore,
C = (-∞, 2]D = (7, ∞)Therefore, C ∪ D = (-∞, 2] ∪ (7, ∞)
As x is either equal to or less than 2, or greater than x, there are no elements which are in both sets.
Therefore, C ∩ D = Ø (empty)
help me with this pleaseee…!
Answer:
All real numbers
Step-by-step explanation:
We can start out by knowing that the domain of a graph is, the side, to side from the x axis directions.
We can see that the line continues of the graph shown, meaning it is infinite. Meaning the answer is the domain is all real numbers.
We can double check by seeing that the other options don't work or aren't enough:
[tex]x\geq 2\\and\\x\leq 2\\and\\x\geq -4[/tex]
The first wouldn't work becuase, yes that is part of the answer, but not the whole answer. The same goes for the others as well, they are on the line and are correct, but the best, and full answer is "All real numbers"
A taxi driver drove 30 miles on Monday, 50 miles on Tuesday, 60 miles on Wednesday, 70 miles on Thursday, and 90 miles on Friday. The average number of miles he drove per day was ___
Answer: 60
Step-by-step explanation: 30+ 50 + 60 + 70 + 90 = 300
Divide by 5
An amusement park would like to determine if they want to add in a new roller coaster. In order to decide whether or not they should add the new roller coaster, they poll people at the park to see how many rode the current roller coaster.
As people are leaving the park they randomly sample 600 people.
Out of the 600 people, 400 rode the roller coaster at the park.
Construct a 90% confidence interval to represent the proportion of riders who rode the roller coaster at the park. All conditions for inference have been met.
Using the z-distribution, it is found that the 90% confidence interval is given by: (0.6350, 0.6984).
What is a confidence interval of proportions?A confidence interval of proportions is given by:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which:
[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.In this problem, we have a 90% confidence level, hence[tex]\alpha = 0.9[/tex], z is the value of Z that has a p-value of [tex]\frac{1+0.9}{2} = 0.95[/tex], so the critical value is z = 1.645.
The sample size and the estimate are given by:
[tex]n = 600, \pi = \frac{400}{600} = 0.6667[/tex]
Hence, the bounds of the interval are given by:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6667 - 1.645\sqrt{\frac{0.6667(0.3333)}{600}} = 0.6350[/tex]
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6667 + 1.645\sqrt{\frac{0.6667(0.3333)}{600}} = 0.6984[/tex]
The 90% confidence interval is given by: (0.6350, 0.6984).
More can be learned about the z-distribution at https://brainly.com/question/25890103
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Identify the volume of the composite figure rounded to the nearest tenth.
Answer:
(c) 115.2 ft³
Step-by-step explanation:
The volume of a composite figure can be found by decomposing it into figures whose volumes are easy to compute. Here, the figure can be nicely represented as a cube and a square pyramid.
__
CubeThe volume of the cube on the left is given by ...
V = s³
V = (4.2 ft)³ = 74.088 ft³
__
PyramidThe volume of the pyramid on the right is given by ...
V = 1/3Bh . . . . . where B is the area of the square base
V = 1/3(s²)h = (4.2 ft)²(7 ft) = 41.16 ft³
__
TotalThe volume of the composite figure is the sum of these volumes:
cube volume + pyramid volume = 74.088 ft³ +41.16 ft³ = 115.248 ft³
The volume of the composite figure is about 115.2 ft³.
Tori received a $20 gift card for school supplies. Paper is $5 per pack and notebooks are $3 each. If Tori purchases 1 pack of paper. How many notebooks is Tori able to purchase?
Answer:
5
Step-by-step explanation:
After buying the Paper Tori is left with $15.
Since each notebook costs $3, 15 / 3 = 5 so she can buy 5 notebooks.
Answer:
5 notebooks. she bought one paper for 5$, meaning she is left with 15$ because 20-5=15. now that we have 15, we need to divide it by three, because notebooks are 3$ each, leaving us with 5 notebooks.
Step-by-step explanation:
64) Ashley bought one package of cherry
tomatoes for $3. How many packages can
DeShawn buy if he has $15
Answer:
DeShawn can buy 5 packages of tomatoes.
Step-by-step explanation:
If Ashley got one for $3, that means DeShawn can five for $15.
15÷3=5
So
$15÷$3=5 packages of tomatoes.
I tried to explain everything. I've bolded the main points. Hope this helps! Good luck!
PLEASE PLEASE PLEASE HELP
Answer:
c. 84.78 mm
Step-by-step explanation:
Circumference of a circle
2πrGiven
radius = 13.5 mmSolving
2 x 3.14 x 13.527 x 3.1484.78 mmA restaurant chains owners are trying to decide if they want to open up a franchise in your town. To help them decide, they want to find out how often people in your town go out to eat. A researcher interviews people leaving a local restaurant. Is there a bias in this sampling method? Explain
Answer:
Yes there is a bias, they are only samplying from one resturant. This resturant could be any type of resturant. the food could be bad or good which wouldnt give us the right info we are looking for. You would want to interview as many customers from as many different resturants in that area.
Step-by-step explanation:
There are 3 Red marbles 4 blue marbles and 6 green marbles find the probability you chose a red marble
Probability of picking red = number of red / total marbles.
probability = 3/13