Answer:
you did this to me too lol
Step-by-step explanation:
jjdfksljdkfj JFKLJSDK djfa
Suppose you have $20 in your bank account. You start saving five dollars each week. Your phone has $170 and removes $10 each week. When will you and your friend have the same amount in your account?
for brainiest:):):):):):):):):):):):)
Answer:
a) 12.5 in
b) 9.6 ft
Step-by-step explanation:
Since the scale is 2:5, you can use cross multiplication. 5*5=2x; 25=2x. Divide 2 on both sides and.. BOOM! you get 12.5.
You can do the exact same thing with the second blank. 2*24=5x; 48=5x. Divide 5 on both sides and you get... 9.6 feet!
Hope this helps! :)
The line y = 2x-5 cuts the x and y axes at point A and B respectively.
Find the coordinates of A and B,
Write down the gradient of y = 2x - 5.
To find the coordinates of points A and B, go to Desmos and graph the given equation.
The word gradient means slope.
The slope is the coefficient of x in the equation. See it?
The gradient is 2.
How much of a radioactive kind of protactinium will be left after 3 minutes if the half-life is 1 minute and you start with 352 grams?
Answer: 44g
Step-by-step explanation:
Half life refers to the length of time it takes for half of the atoms of the element in question to decay.
The half life here is 1 minute which means that in a minute, the amount of protactinium left would be:
= 352 / 2
= 176g
After the second minute:
= 176 / 2
= 88g
After the third minute:
= 88 / 2
= 44g
HELPP
the equation is y=(1/3)^x
Answer:
For a function y = f(x), the domain is the set of the possible values of x that we can input, while the range is the set of the possible outputs of the function.
In this case we gave y = f(x) = (1/3)^x
A) Domain
To see the domain we always start assuming that the domain is the set of all real numbers, and then see if there is a real number that causes any problem.
(for example if we had a denominator like "x - 2", the point x = 2 would cause problems because it would make the denominator equal to zero, and we can not divide by zero)
Particularly because x is the exponent, we do not have any problem here, so the domain is the set of all real numbers:
D: = R
B) Range.
To find the range we usually need to find the smallest value of the function.
Here we have:
y = (1/3)^x
Is really easy to see that as x increases, the denominator increases but the numerator remains the same, then as x increases, the value of y decreases.
For example for x = 100 we will have:
y = 1/3^100 ≈ 0
(you also can see that y will never be a negative value, and as x increases the value of y tends to zero)
then:
0 < y
And if we have x negative, like x = -3 for example.
y = (1/3)^-3 = (3/1)^3 = 3^3 = 27
So if x decreases (or increases in the negative value) then the value of y increases, so we do not have any upper limit.
Then the range is only defined by
0 < y.
We can write the rane as:
R: (0, ∞)
C) The y-intercept is the value of y when x= 0
y = (1/3)^0 = 1
(for any number different than zero N, we have that N^0 = 1)
the y-intercept is 1
D) The asymptote is a tendency to a given value, such that the function never does reach that value.
Here we have two asymptotes.
y tends to infinity as x tends to negative infinity.
y tends to zero as x tends to infinity.
how would you do log(3250) without a calculator
Answer:
Step-by-step explanation:
It depends on what level you are. Logs are most easily developed by using a series for the natural logarithms (instead of base 10, you use base e). Even that is a difficult process using a series that you won't be introduced to until your second calculus course..
For now, I'd be content to use a calculator. The series does not converge terribly quickly.
PLEASE HELP I WILL REWARD WITH BRAINLIEST !!
Answer:
A. 24 units
Step-by-step explanation:
6x2 + 28x - 2 = 2x - 10
Answer:
x = -1/3 or x = -4
Step-by-step explanation:
Answer:
x= [tex]\frac{-1}{3}[/tex]
x= -4
Step-by-step explanation:
[tex]6x^2+28x-2=2x-10[/tex]
Subtract 2x - 10 from both sides.
[tex]6x^2+26x+8=0[/tex]
[tex]x= \frac{ -(26) +/ \sqrt{(26)^2-4(6)(8)} }{2(6)}[/tex]
x= [tex]\frac{-26 +/\sqrt{676-4(6)(8)} }{2(6)}[/tex]
x= [tex]\frac{-26 +/ \sqrt{676-192} }{2(6)}[/tex]
x= [tex]\frac{-26+/\sqrt{484} }{2(6)}[/tex]
x= [tex]\frac{-26+/22}{12}[/tex]
x= [tex]\frac{-26+22}{12}[/tex] = -0.33333333333333 = -1/3
x= [tex]\frac{-26-22}{12}[/tex]= -4
What is the value of x?
26°
to
O
X
= [ ? ]
Answer:
154°Step-by-step explanation:
The central angle and the angle between the tangents are supplementary, so
x + 26° = 180° ( subtract 26° from both sides )
26 - 26 = 0
180 - 26 = 154
x = 154°
Answer: 154
Step-by-step explanation: 26 + x = 180, subtract 26 from both sides, x = 154
A sign is 4 feet wide and 5 feet long. Find the area of the surface of the sign
thank you!!
Answer:
the area is 20 feet^2
Step-by-step explanation:
For area, you multiply the lengths together
Use the given equation to complete the table s = 16t^2 using the points from the table select the graph the best represents the equation a. 0, 16, 64, 144; graph a b. 0, 4, 8, 12 graph a c. 0, 16, 64, 144; graph b d. 0, 4, 8, 12; graph b
Answer:
0, 16, 64, 144
Step-by-step explanation:
I substituted the t values into the giving equation and solved until it gave the s values.
I hope this helps^-^
Answer:
It's A
0, 16, 64,144 graph A edge
Step-by-step explanation:
I got it right see
At Norman's Newsstand, 5 magazines cost $10.00. How many magazines could you buy with $24.00?
Answer: you could buy 12 magazines
Step-by-step explanation:
each magazine is $2
Answer:
If 5 magazines = $10.00
Then,
10. 20
15. 25
20.30
Step-by-step explanation:
the answer would be 15
The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges
$2490 to rent trucks plus an additional fee of $200.75 for each ton of sugar. The second company charges $4500 to rent
trucks plus an additional fee of $100.25 for each ton of sugar.
For what amount of sugar do the two companies charge
the same?
What is the cost when the two companies charge the
same?
I think it's how you do this!
5495 + 200.75x = 7500 + 100.50x
100.25x = 2005
x=20 <- the amount of sugar at the equilibrium point.
7500 + 100.50(20)
7500 + 2005
$9505 <- the cost at that point. ■
multiple choice question pls help mee
Answer:
The answer is D
Step-by-step explanation:
Multiply 24 km by 3.14 (π) and round to the nearest tenth like in the instructions.
Write the first six terms of the sequence, beginning with n=1. a(n)=60n Enter the numbers, separated by commas.
Answer:
60, 120, 180, 240, 300, 360
Step-by-step explanation:
a(n)=60n
At n =1
a(1) = 60(1) = 60
At n = 2
a(2) = 60(2) = 120
At n = 3
a(3) = 60(3) = 180
At n = 4
a(4) = 60(4) = 240
At n = 5
a(5) = 60(5) = 300
At n = 6
a(6) = 60(6) = 360
60, 120, 180, 240, 300, 360
Pls help and thank youuuuuu
Answer:
[tex]y = \frac{3}{5}x - 2[/tex]
Step-by-step explanation:
First, find two points that are located on the given line. In this case, we will use the following points:
(-5 , -5) , (0 , -2)
First, find the slope. The slope can be found using the slope formula:
slope (m) = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]
Let:
[tex](x_1 , y_1) = (0 , -2)\\(x_2 , y_2) = (-5 , -5)[/tex]
Plug in the corresponding numbers to the corresponding angles:
m = [tex]\frac{-5 - (-2)}{-5 - 0}[/tex]
Simplify. Combine like terms, and then divide:
m = [tex]\frac{-5 + 2}{-5 - 0} = \frac{-3}{-5} = \frac{3}{5}[/tex]
Plug in [tex]\frac{3}{5}[/tex] into the slope (m), and a point into (x , y) to find the y-intercept:
[tex]y = \frac{3}{5}x + b\\-2 = \frac{3}{5}(0) + b\\-2 = 0 + b\\-2 = b\\b = -2\\[/tex]
Your answer:
[tex]y = \frac{3}{5}x - 2[/tex]
A construction company ordered 45 wood beams for a new project. Each beam
was 22.5 ft long. What was the total length of all of the beams put together?
Write your answer in yards.
A shirt at Target is priced at $20. You have a coupon for 20% off. The tax on the shirt is 8%. What will be the cost of the shirt?
AHHH Please help me!.
Answer:
30 degrees
hope it helps
pls answer correctly c:
Answer:
they are already correct first true second true third false and 4th true
Step-by-step explanation:
np brainliest?
Which expressions have a value greater than 8?
Answer:
A lot of expressions have a greater value that 8.
Step-by-step explanation:
Answer:
So 8 more than 'x' is: x + 8.
$17.40 is 120% of what price?
If you inflate a beach ball with 14,130 cubic inches of air, what will its radius be? Use 3.14 for T. Round to the nearest whole number if necessary.
Answer:
58
Step-by-step explanation:
What is the y-value when x = 0 in the function below? y = 8x + 7
Answer:
7
Step-by-step explanation:
8 x 0 = 0
0+7=7
Answer:
Y = 7
Step-by-step explanation:
Since X is 0, 8 times 0 is still 0. That leaves 0+7, which is 7. Y is equal to 7.
Which of these number sentences is NOT true?
Answer:
I’m pretty sure it’s D
Step-by-step explanation:
A. Lets convert millimeters into kilometers.
[tex]1cm = 10mm \\ 10mm = 1cm \\ 10 \times 30 = 1 \times 30 \\ 300mm = 30cm \\ 30cm > 3cm[/tex]
since 4000000mm = 4km, A is true. (Not the answer)
B. Lets convert millimeters into centimeters.
[tex]1cm = 10mm \\ 10mm = 1cm \\ 10 \times 30 = 1 \times 30 \\ 300mm = 30cm \\ 30cm > 3cm[/tex]
Since 300mm > 3cm, B is true. (Not the answer)
C. Lets convert millimeters to meters.
[tex]1000mm = 1m \\ 1m = 1000mm \\ 1 \times 5 = 1000 \times 5 \\ 5m = 5000mm[/tex]
Since 5m = 5000mm, C is NOT true. (Answer)
D.Lets convert metres to kilometres.
[tex]1km = 1000m \\ 1 \times 2 = 1000 \times 2 \\ 2km = 2000m \\ 2km < 20km[/tex]
Since 2000m < 20km, D is true. (Not the Answer.)
PLZS HELP I NEED IT BY TODAY!
Find the lateral area and surface area of the following figure
Round to the nearest hundredth if necessary
Answer:
lateral surface area of cone =πrl=3×8.5π=80.11in²
total surface area of cone =πr(r+l)=π×3(3+8.5)=108.38in²
Your living room is a rectangular room, 35x 28 feet. There is a quarter circle hardwood floor (with a 6-foot radius) where the door is, but the rest of the room needs to be covered in carpet.
What is the area of the hardwood floor portion of the room?
Answer:
A = 28.274ft^2
Step-by-step explanation:
Since we have the radius, we can find the area of the circle if it was a full circle.
[tex]A = \pi r^{2}[/tex]
Plug in the radius of 6 feet:
[tex]A = \pi 6^{2}[/tex] = [tex]113.09734[/tex]
With the area of the full circle, we can divide the area by 4 to get the area of a quarter of that circle.
[tex]113.09734 / 4 = 28.274335[/tex] or about [tex]28.274ft^{2}[/tex]
It's about 5 AM, haven't slept in 28 hours, need help.
Answer:
2nd option
Step-by-step explanation:
8[tex]x^{4}[/tex] - 4x³ - x + 2 - (2[tex]x^{4}[/tex] - 8x² - x + 10) ← distribute by - 1
= 8[tex]x^{4}[/tex] - 4x³ - x + 2 - 2[tex]x^{4}[/tex] + 8x² + x - 10 ← collect like terms
= 6[tex]x^{4}[/tex] - 4x³ + 8x² - 8
Find the total surface area of a cylinder with a diameter of 11 meters and a height of 11 meters. Round to the nearest tenths place.
Answer:
700pi
Step-by-step explanation:
2pi(10)^2+2pi(10)(25)