Work out m and c for the line:
y=6x−1
Jeremy can type 60 words in 1 minute. How many words can he type in 2 minutes?
Answer:
60*2= 120 words in 2 minutes.
Step-by-step explanation:
Answer:
120 Words
Step-by-step explanation:
if Jeremy can type 60 words in one minute, we just need to multiple that number against 2 that's how we get 120 words in 2 minutes
NEED HELP ASAP!!
Lisa and Cory are having a debate about gravitation. Lisa says that the astronauts in that international Space Station (which is a distance of about 6800 km from Earth’s center) are too far away from Earth to experience Earth’s gravitational pull, and that is why they float. Cory insists that Lisa is incorrect. Which of them is correct in their statement, and why?
Answer:
Only Cory is correct
Step-by-step explanation:
The gravitational pull of the Earth on a person or object is given by Newton's law of gravitation as follows;
[tex]F =G\times \dfrac{M \cdot m}{r^{2}}[/tex]
Where;
G = The universal gravitational constant
M = The mass of one object
m = The mass of the other object
r = The distance between the centers of the two objects
For the gravitational pull of the Earth on a person, when the person is standing on the Earth's surface, r = R = The radius of the Earth ≈ 6,371 km
Therefore, for an astronaut in the international Space Station, r = 6,800 km
The ratio of the gravitational pull on the surface of the Earth, F₁, and the gravitational pull on an astronaut at the international space station, F₂, is therefore given as follows;
[tex]\dfrac{F_1}{F_2} = \dfrac{ \dfrac{M \cdot m}{R^{2}}}{\dfrac{M \cdot m}{r^{2}}} = \dfrac{r^2}{R^2} = \dfrac{(6,800 \ km)^2}{(6,371 \ km)^2} \approx 1.14[/tex]
∴ F₁ ≈ 1.14 × F₂
F₂ ≈ 0.8778 × F₁
Therefore, the gravitational pull on the astronaut by virtue of the distance from the center of the Earth, F₂ is approximately 88% of the gravitational pull on a person of similar mass on Earth
However, the International Space Station is moving in its orbit around the Earth at an orbiting speed enough to prevent the Space Station from falling to the Earth such that the Space Station falls around the Earth because of the curved shape of the gravitational attraction, such that the astronaut are constantly falling (similar to falling from height) and appear not to experience gravity
Therefore, Cory is correct, the astronauts in the International Space Station, 6,800 km from the Earth's center, are not too far to experience gravity.
Need help on this please help
Answer:
62.8
Step-by-step explanation:
formula: pi r^2 h
I NEED HELP FOR THIS QUESTION PLSSS
Answer:
132, since that angle is corresponding to the line below it.
Using the rule of corresponding angles, we can determine that the transversal line that is intersecting the two parallel lines make x = 132.
what is the answer to this question
Answer:
it would be c. 5 1/4
Step-by-step explanation:
What are all the different forms to write √2 (square root of two)?
4. Answer the question below using complete sentences. * Rae made a table of x and y values. The relationship between the x and the y values in Rae's table is not a function. One of the values of x is missing from Rae's table, as shown. What is a value of x that Rae could use to complete her table to show that the relationship between x and y is not a function? explain your answer
Answer:
Any of x = {-3, 5, -1, 0}Step-by-step explanation:
Since the relationship in the table is not a function, Rae could put any values for x that is already in the table.
x = -3, 5, -1, 0This will result in repeat of x-values with different corresponding y-values.
Sally’s dance school had 60 students last year. This year there are only 48 students enrolled. By what percent did the enrollment decrease?
Answer:
-20%
My brain is weird on how i figure it out but I divided 48 by 60 and got .80 so i just got the other whole to make it 1 so it is 20%. This is not the correct way to do this but this is how i got my answer.
which of the following is not a type of angle
a acute
b obtuse
c parallel
d right
Answer:
parallel
Step-by-step explanation:
parallel describes lines
the answer is C
Step-by-step explanation:
parallel is not a type of angle
Which graph represents a proportional relationship (savvas)
Find the slope of the line that passes through K(-4,4), L(5,4)
Answer:
The slope is 0, or it is a zero slope.
Step-by-step explanation:
The y coordinate is 4 throughout, and if it were the x coordinate that stayed the same for both points, it would be a undefined slope.
Can somebody plz help solve each questions for what it equals correclty thanks so much :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST !!:DD
what is the vertex of y=-x^2+12x-31?????
[tex]h = - \frac{b}{2a} \\ k = \frac{4ac - {b}^{2} }{4a} [/tex]
Vertex Form[tex]y = a{(x - h)}^{2} + k [/tex]
Where the a-term determines how wide, narrow, upward or downward the graph is.
The h-term determines the horizontal shift of graph. (x-axis)
The k-term determines the vertical shift of graph. (y-axis)
The vertex of graph is at (h,k). We can find the vertex by using the given formulas.
Find the vertexFrom the equation, the coefficients are:
[tex] \begin{cases} a = - 1 \\ b = 12 \\ c = - 31 \end{cases}[/tex]
Substitute these values in the formulas.
Find the value of h
[tex]h = - \frac{12}{2( - 1)} \\ h = - \frac{12}{ - 2} \\ h = - \frac{ - 6}{1} \longrightarrow - ( - 6) = 6 \\ h = 6[/tex]
Hence, the value of h is 6.
Find the value of k
[tex]k = \frac{4( - 1)( - 31) - {(12)}^{2} }{4( - 1)} \\ k = \frac{124 - 144}{ - 4} \\ k = \frac{ - 20}{ - 4} \longrightarrow \frac{5}{1} = 5 \\ k = 5[/tex]
Hence, the value of k is 5. Then we substitute both value of h and k in the vertex form
Rewrite the equation of vertex form by substituting the value of h and k[tex]y = a {(x - h)}^{2} + k \\ y = - 1 {(x - 6)}^{2} + 5 \\ y = - {(x - 6)}^{2} + 5[/tex]
AnswerSince the vertex is at (h,k). Therefore the value of h is 6 and k is 5. Therefore:
[tex] \large{(h, k)=(6, 5)}[/tex]
(6,5) is the vertex.
Evaluate sin(36°), round your answer to four decimal places.
Answer:
[tex]sin(36^{\circ})=\approx 0.5878[/tex]
Step-by-step explanation:
We are given that
[tex]sin(36^{\circ)[/tex]
We have to find the value of [tex]sin(36^{\circ)[/tex]
To find the value of [tex]sin(36^{\circ)[/tex] we will use table of sin
From sin table
We get
[tex]sin(36^{\circ})[/tex]
=0.587785
We have to round off the answer to four decimal places
Therefore,
[tex]sin(36^{\circ})=\approx 0.5878[/tex]
A square pyramid is sliced in half, parallel to the base.
Which of the following statements describes the cross-section?
A triangle with the same height as the pyramid
A square that is smaller than the base
A square that is congruent to the base
A trapezoid that is shorter than the pyramid
Answer:
I think the answer is a because it not getting any smaller
Answer:
I think a trapezoid that is shorter than the pyramid because it's parallel to the base which automatically know it's not the same height because there's a certain length thats cut off.
Step-by-step explanation:
write the equation for the inverse of the function y=pi/4+sinx
Answer:
Step-by-step explanation:
Sine doesn't have an inverse, until you restrict the domain to -pi/2 to pi/2. If you don't restrict the domain, then the inverse doesn't exist. Im going to assume the domain is restricted.
Switch the x and y values
[tex]x= \pi/4+ \sin(y)[/tex]
Subtract pi/4 on both sides
[tex]x- \pi/4= \sin(y)[/tex]
Take the arcsine of both sides
[tex]\arcsin(x- \pi/4)=y[/tex]
Answer:
C.
Step-by-step explanation:
correct on edg
Jane has saved $48 of her allowance money to buy books. If she buys 6 books at "d" dollars per book, she will have $48 -6d of her allowance left. How much does she have left if the books cost $2.50 each?
Answer:
She would have $33 left.
Step-by-step explanation:
First input the $2.50 into the "d" variable and multiply 6 by 2.50.
48−(6)(2.5)
Then, subtract 48 by 15.
48−15
Finally, you have your answer.
33
Please helppppp I’m almost done with itttt
The answer is [tex]\frac{5}{10}[/tex]
And that is correct
Answer:
5/10
Step-by-step explanation:
can be reduced to 1/2 or 0.5
Nathan is going to invest in an account paying an interest rate of 1.9% compounded continuously. How much would Nathan need to invest, to the nearest dollar, for the value of the account to reach $280 in 12 years?
Answer:
223 (rounded to closest one) actual answer would be 222.91479275
Step-by-step explanation:
use formula A=Pe^nt
$280 = Pe^0.019(12)
$280 = Pe^0.228, then evaluate the solution by isolating the variable and dividing each side by the factors which don't contain the variable.
P = 222.91479275
whoever answers correctly gets brainliest.
Answer:
The answer is 13.72 because 1.4^3=2.744 and 2.744*5=13.72
Jonas is buying a fence for his garden if his garden has a perimiter of 36 feet and fencing cost 10.00 a yard
Answer:
120
Step-by-step explanation:
3 feet in a yard
36÷3=12
12×10=120
Please help!! It’s for an extra credit assignment.
Answer:
C = 65
Step-by-step explanation:
...........................
1) Divide £10 into the ratio 2 : 3
Answer:
£4 and £6
Step-by-step explanation:
Let the common multiplier of the given ratios be x.
So, 2x and 3x are the two parts of £10.
Hence,
2x + 3x = 10
5x = 10
x = 10/5
x = 2
2x = 2*2 = 4
3x = 3*2 = 6
Hence, the two parts of £10 are £4 and £6.
What is the constant in the
expression below?
15 – 4b
A
B
С
Answer:
15 is the constant
Step-by-step explanation:
Does not have a variable next to it which means it remains a constant
what is the slope of -7,2 and -7,4
Answer:
The slope is undefined
Step-by-step explanation:
We can find the slope using
m = ( y2-y1)/( x2-x1)
= (4-2)/( -7 - -7)
= (4-2)/( -7 +7)
= 2 / 0
When we divide by 0, the result is undefined
The slope is undefined
Answer:
Undefined
Step-by-step explanation:
Since there is two points we can use (-7,2) and (-7,4) to find the slope
Slope formula for two points:
y2-y1/x2-x1
4-2/-7+7
Which is
2/0
Since 2/0 is not possible the answer will be undefined
Hope this helps!
1. Which of the following numbers is both an integer and a whole number?
-2/5
5/4
-50
43
Answer:
43 a whole number and a whole number
Step-by-step explanation:
I need 954x66.76 plz 5min til due
954 * 66.76 = 63689.04
Which inequality is true when x = 0.8?
Answer: C
Step-by-step explanation:
An eye doctor charges an exam fee, plus a charge for the number of boxes of contact lenses purchased.
Lindsey had an exam and ordered 2 boxes of contact lenses for $112.97
Josh had an exam and ordered 6 boxes of contact lenses for $272.93
How much is the exam fee?
A$32.99
B$39.99
C$45.49
D$56.49
Answer:
to get the exam fee
$112•97 ÷ 2
45•49
$272•93 ÷ 3
56•49