Answer:
y=-8/3x-2
Step-by-step explanation:
two boys move simultaneously towards each other from two objects located at a distance of 7.5km. The speed of one is as much as 2/3 of the speed of the other. Find the speeds of each if they meet after 1.5 hours
Inequalities
( 4 < 7 )
Multiply both sides by 3 , then by 2, then by 4, then by 9
(the parenthesis are not part of the problem, it's just to separate from the directions)
Answer:
Step-by-step explanation:
3*2 * 4 * 9 =36 * 6 = 216
216 ( 4 < 7)
864 < 1512
When solving a quadratic equation, what do the x-values stand for as it relates to plotting the graph of the equation?
a.
x-intercepts
c.
minimum value
b.
vertex
d.
axis of symmetry
NOT D
x means an axis of symmetry
Answer:
the answer should be 'd'
Half-Life N(t)=No(12)th N= final amount No= initial amount t= time h= half-life Iodine-123 is sometimes used in thyroid scans and has a half-life of 15 hours. a) How much of a 250 mg sample would remain after 40 hours (round to hundredths)? b) How much time does it take for 250 mg to decay to 100 mg (round to the nearest hour)? Use logarithms to solve it algebraically. You must show your work for each step to get credit.
Answer:
a)39.37 mg
b) 20 hours
Step-by-step explanation:
Half-Life N(t)=No(12)th N= final amount No= initial amount t= time h= half-life Iodine-123 is sometimes used in thyroid scans and has a half-life of 15 hours.
a) How much of a 250 mg sample would remain after 40 hours (round to hundredths)?
We are to find N(t)
N(t) = No (1/2)^t/t½
No = 250mg
t = 40 hours
t½ = 15 hours
N(t) = 250 (1/2)^40/15
N(t) = 39.372532809215 mg
Approximately = 39.37 mg
b) How much time does it take for 250 mg to decay to 100 mg (round to the nearest hour)? Use logarithms to solve it algebraically.
We are to find time t
t = t½ (In Nt/No)/- In 2
t = 15 × (In 100/250)/ -In2
t = 19.82892142331 hours
Approximately = 20 hours
HELP PLZ questions in pictures above
Answer:
S1) False. 2³ is 2 × 2 × 2 which is 8, not 6.
S2) False. ( 2x / 3y ^ (2) ) ^ (3) =
( (2x) ^ (3) / ( (3y) ^ (2) ) ^ (3) ) = (2)³ × (x)³ / (3)³ × (y²)³ = 8 × x³ / 27 × y⁶ = 8x³ / 27y⁶.
i.e (a^b)^c = a^(b × c).
S3) True.
S4) True.
S5) False. x^(-3) = 1 / x^(3) ≠ 1 / 3x
What is the Slope-Intercept Form of 16x + 4y = 44
Answer:
Y=-4x+11
Step-by-step explanation:
So first you gotta realize that slope intercept from is
y=mx+b
So you have the equation of
16x+4y=44 as the initial response
Now you just have to isolate it into the from of y=mx+b
SO first subtract 16x on both sides to isolate the 4y since its the initial response as y=mx+b
Then when that is done you should have the answer of
4y= 44-16x
Now You have to isolate the “y”.
By dividing 4 on both sides to get the new equation which will be
y= 11-4x
You can leave it like that or just move around the (x) to make it more plausible as the answer of y=mx+b
y= -4x+11
However you would put it, that is the answer
y= -4x+11
And
y= 11-4x
A function f(x) is an EVEN function. If f(4) = 2, which other point must be on the graph of f(x) ?
Complete the work to simplify the expression (-2d^5) ^4.
Answer:
96d exponent 22 hope this helps I dont how to explain lol
Please help its probably going to be easy
Answer:
n(k + m) = number of fruits
Step-by-step explanation:
n(k + m)
Remember that the fruits combined would be k + m.
Then to find the total, you would need to multiply by the number of plates, which is n. Therefore, you would get n(k+m) to showcase the total amount of fruits on the table.
Can someone help me please
Answer:
The volume of this figure is approximately 418.88 centimeters squared!
Step-by-step explanation:
The volume for a right circular cone is V = (π)(r^2)(h/3)
Substituting known values is as follows:
V = (π)(r^2)(h/3)
V = (π)(4^2)(25/3)
V = (π)(16)(25/3)
V ≈ 418.88 cm^3
help plz plz plz plz plz plz,
Answer:
6.28 km
Step-by-step explanation:
Circumference formula:
C = 2πr
To find r:
r = d/2
r = 2/2
r = 1
Work:
C = 2(3.14)(1)
C = 6.28
Answer:
6.28
Step-by-step explanation:
Its the formula 2πr. The diameter is 2 and the radius is half of 2 so 1. Just plug in 1 for r and multiply everything together.
please help dont need working out thanks
Answer:
56 cm^2
Step-by-step explanation:
Well I gotta explain something so I don’t get reported.
Well first separate into 2 shapes
You got 8*3 and 8*4
Multiply and add those 2 numbers
you’d get 56
hi im spamming the homework questions i got wrong someone help??
Answer:
55
Step-by-step explanation:
Since angle Arc AC and angle X lies on the same same straight line,
[tex]angle \: arc \: ac \: + \: angle \: x \: = 180 \\ 125 + x = 180 \\ x = 180 - 125 \\ = 55[/tex]
Answer:
it is 245 because the degrees for circle is 360
Step-by-step explanation:
360-125=245
i will mark you brainleast
Answer:
A
Step-by-step explanation:
The denominator is obviously 8 because there are 8 posibilities. The nuemerator is 1.
If you flip it once, you have a 1/2 chance of flipping tails. twice is 1/4 chance. three times is a 1/8 chance
pls brainliest!
Answer:
A. 1/8th
Step-by-step explanation:
The chances u land the coin on one side is 1/2
so the equation would be 1/2^3 or
1/2 x 1/2 x 1/2 which leaves you with 1/8.
I NEED HELP ASAP!!! DUE TONIGHT‼️
Answer:
57
Step-by-step explanation:
Answer:
28.26
Step-by-step explanation:
A=(3.14)r^2=(3.14)·3^2≈28.26
I need help with this problem:(
Answer:
8
Step-by-step explanation:
According to Euclidean theorem
m^2 = 4×16
m^2 = 64
m = 8
Equation: y = 6x
When x = 8.
What is y?
Answer:
48
Step-by-step explanation:
y=6x
y=6(8)=48
Answer:
Step-by-step explanation:
y=6(8)
6*8=48
x=48
Determine the missing term that should be in the empty box of the polynomial that will make the solution true.
Answer:
Missing term = r²
Step-by-step explanation:
Given:
6r⁴ + 4r + …. -2r⁴ + 3r = 4r⁴ + r² +7r
Find:
Missing term
Computation:
Assume missing term = A
So,
6r⁴ + 4r + …. -2r⁴ + 3r = 4r⁴ + r² + 7r
6r⁴ + 4r + A -2r⁴ + 3r = 4r⁴ + r² + 7r
4r⁴ + 4r + A + 3r = 4r⁴ + r² + 7r
4r⁴ + 7r + A = 4r⁴ + r² +7r
A = r²
Missing term = r²
Matt is ordering basketball jerseys For his country's league. Last year he ordered 512 jerseys. 64 those jerseys were orange. If he ordered 600 jerseys this year, how many of them will be Orange if the ratio of orange jerseys to all the jerseys remain the same? Round to the nearest whole number.
Answer:
75
Step-by-step explanation:
Step 1
Matt is ordering basketball jerseys For his country's league. Last year he ordered 512 jerseys. 64 those jerseys were orange.
The ratio of all Jerseys to Jerseys that are Orange =
512 : 64
8 : 1
Step 2
If he ordered 600 jerseys this year, how many of them will be Orange if the ratio of orange jerseys to all the jerseys remain the same?
Since we are maintaining the ratio in step 1
Let the number of orange jerseys = x
600 : x = 8 : 1
Hence
600/x = 8/1
Cross Multiply
8 × x = 600 × 1
8x = 600
x = 600/8
x = 75
Therefore, this year, the number of orange jerseys = 75
HELP!!! HURRY!!! NO SPAM!!!! Identify the translation of the figure with the vertices W(2,−3), X(5,−3), Y(5,−5) and Z(2,−5), along the vector ⟨−6,7⟩.
Answer:
W - (-4,4)
X - (-1,4)
Y - (-1,2)
Z - (-4,2)
Step-by-step explanation:
hope it helps. :)
Which equation has the solution to ×=8 answer choices in the PICTURE will mark Brainliest if answered correctly
Answer:
6h/top left
Step-by-step explanation:
count the number of hs. In this case there are 6 so it is 6h
Step-by-step explanation:
h+h+h+h+h+h is equivalent to 6h
Help, how do I solve this
PLEASE HKEP I AM BEGGING YOU OLEASEEEEEEEE!!!!!!! I GIVE EXTRA POINTS AND BRAINLIEST!!!!!!!
Find angle PRS in the image above
Answer:
142°
Step-by-step explanation:
A man drove his car 216 miles on 12 gallons of gas how many miles per gallon did he get
Answer:
the answer is 18
Step-by-step explanation:
216/12=18
Answer:
18 miles per gallon
Step-by-step explanation:
216/12= 18
help meeeeeeeeeeeeeee pls
Answer:
175cm²
The answer is simply the length multiplied by the perpendicular height. 5cm × 35cm = 175cm²
What is the area of the figure, in m2 , shown below?.
Answer:
The area of this figure is 22 meters squared
Step-by-step explanation:
Two shapes exist on this figure: a rectangle and a triangle. We must first find the area of the rectangle and add that area to the area of the triangle. So first, let's solve the rectangle.
As the area of a rectangle is length multiplied by width, we have 8 * 1 = area, or 8 meters squared. Now we save the value of 8 to add to the area of the triangle. So let's now figure out the area of the triangle.
As the area of a triangle is A = (HB)/(2), or that triangles height multiplied by its base, and dividing that whole number by 2, we can substitute numbers into this equation. This means we take 3.5, the height of the triangle, and multiply that number by 8, the base of the triangle, to get a value of 28. We then divide 28 by 2 to satisfy the equation A = (HB)/(2), and we get the value of 14.
Because of this, we add 8, the area of the rectangle, and 14, the value of the triangle to get a total value of 22. Now let's not forget to add meters squared as the unit of measurement as stated in the question.
This means that the total area of this figure is 22 meters squared.
Choose the type of variation that relates the variables in the table.
A.) combined variation
B.) Joint variation
C.) inverse variation
D.) direct variation
Answer:
D) direct variation
Step-by-step explanation:
Since y changes depending on x, it is direct variation.
Hope it helps, have a nice day :)
There are 80 people in line waiting to enter the taping of a television program. Of those people, 24 are senior citizens. What percent of the
people in line are NOT senior citizens?
Answer: 56 people in line are not senior citizens
Step-by-step explanation:
i’m not good at math.
A. 90
B. 130
C. 140
D. 50
Answer:
SHOULD be 140.
Step-by-step explanation: