Answer:
y = 1/5x
Step-by-step explanation:
Here, we have a direct relationship between the distance from lightning and the time it takes to hear thunder
Let the distance from lightning be y and the time it takes to hear thunder be x
If k is the proportionality constant, then;
y = kx
Now, let’s calculate k , given x 10 seconds and y = 2 miles
2 = 10k
k = 2/10 = 1/5
So the equation for the given situation is;
y = 1/5x
What is the difference?
A:-6-(11)
B:0-17
C:05
D:0 17
Answer:
-17 :)
hope this is helpful
<3
Please help!!! BRAINLIEST TO CORRECT ANSWER!!
Answer:
7.4
Step-by-step explanation:
Answer:
Nice! Quadratic Equations!
Step-by-step explanation:
Okay, I'll try to keep it as brief as possible.
To find out how many solutions there are in a quadratic equation, we need to find the Discriminate.
It's pretty simple. The form of a quadratic equation is:
[tex]ax^2+bx+c=0[/tex]
Our Discriminant is [tex]b^2-4ac[/tex].
Time to solve! (input b=7, a=9, and c=-4)
[tex]49+144\\193[/tex]
The discriminate is positive, meaning there are two answers.
If it was zero, there would be only one.
if it was negative, there would be no solutions.
Time to actually solve!
Completing the square looks to be a bad solution, so I'll go with the Quadratic Equation. Remember, don't use it too often.
(Quadratic Equation: [tex]x=\frac{-b+-\sqrt{b^2-4ac} }{2a}[/tex])
[tex]x=\frac{-7+-\sqrt{49+144} }{18}[/tex]
[tex]x=\frac{-7+-\sqrt{193} }{18}[/tex] <-------SOLUTION! COME HERE!
193 seems to be a prime number, so I can't simplify it any more.
There's your solution!
(Note: +- means plus/minus, where there are two cases, one where the square root has a negative sign, and the other with a positive sign.)
Happy Quadraticing!
what is 13/30 divided by 17,can anyone please help me
Answer:
13/510
Step-by-step explanation:
The answer is 13/510 because 17 as a fraction is 17/1 and when dividing you switch the fraction upside down which makes it 1/17 and 13/30 times 1/17 is 15/510.
Answer: guess what the guy on top said u can caculate it btw
Step-by-step explanation:
a) A circle has radius 4.6 cm
Work out the length of the circumference.
Give your answer to 1 decimal place.
(3)
+
I
b) A circle is shown with centre O.
(1)
The shaded area is a
of the circle.
O
Answer:
So we know the formula is 2 x pie x r, and now we have a radius of 4.6. 4.6 x 2 = 9.2 9.2 x 2 = 18.4
Step-by-step explanation:
When n=8, what is the value
of 3 x n-8?
A. 0
B. 3
C. 16
D. 19
Answer:
there is no correct answer
Step-by-step explanation:
PEMDAS- fisrt parenthesis, then exponents, then multiplication or division, then lastly addition or subtraction
3×8-8
24-8
14
the answers given are subtracting the eights first, in which case the answe would be A. 0
3×8-8
3×0
0
Which point best represents V68?
A)
point A
B)
point B
point
D)
point D
Answer:
C.
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
square root of 68 is 8.246
Please help me, it’s small please
A farm produced 13,047 pounds of tomatoes last year. A bushel of tomatoes weighs about 60 pounds. How many bushels of tomatoes did the farm produce?
Answer:
Step-by-step explanation:
No of bushels farm produced = 13047 ÷ 60 = 217.45
Which relation is not a function? A. (2, 9), (−1, −5), (1, 5), (5, 0), (12, 3) B. (−3, 1), (6, 2), (8, 3), (6, 4), (3, 5) C. (5, 1), (4, 2), (3, 3), (2, 4), (1, 5) D. (7, 2), (5, 3), (3, 4), (1, 5), (−1, 6)
Answer:
the answer is b
Step-by-step explanation:
plz mark brailiest!!
B is a relation that's not a function.
So the answer is ( B )
Because there's a repetitive domain and that's x = 6. There're (6,2) and (6,4). Function can only have a domain that gives one output.
WILL GIVE BRAINIEST ANSWER!!!! & POINTS!!!
SOLVE FOR X.
Answer:
x = -6
Step-by-step explanation:
its an equilateral triangle, all three angles are 60°
x + 66 = 60
x = -6
.∠ZTS and ∠NRQ are supplementary. m∠ZTS = (5x − 3)° and m∠NRQ = (2x + 1)°. Find the measure of each angle.
One side of a square measures 15cm. What is its area?
Answer:
Area = l^2
Answer is 225
you rent a canoe for $5 per hour. Your cost before the tax is added is $7.50. Write and solve an equation to find the number of hours that u rented the canoe.
Answer:
My equation is 5X = 12.50 , then I divide 5 from both side to get 2.5 for the number of hours that rented the canoe. Two and half hours I guess.
Step-by-step explanation:
Answer:
5x = 7.5
x = 1.5 hours
Step-by-step explanation:
5x = 7.5
divide entire equation by 5
x = 1.5
Evaluate.
16[21 - (1 +3)2]
Answer:
for 16( 21-(1+3) to the second the answer would be 80
Rose normally pays $118.00 for an airplane ticket to visit her parents. The airline company is offering a 15% discount. How much is the discount? A) $17.70 B) $1.77 C) $2.70 D) $27.00
Answer:
a
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
anyone know the answer to this? Ill give brainliest!!!
10,infinity
Interval notation-
Inequality notation-
Answer:
hi
Step-by-step explanation:
Janet drove 420 miles in 6 hours. What was her constant rate of change?
Pls answer
Answer:
70 miles per hour
Step-by-step explanation:
3. What is the value of x in the figure
below?
Answer:
3 = 14 and 4 = 8
Step-by-step explanation:
The reason as to why this is, is because of the line going down the middle. If you were to open one of the lengths as a door starting from the middle line it would fit perfectly with the top one.
Help plz I don’t know math
Answer: 9x + 6y = 234
Step-by-step explanation:
Answer:
234
Step-by-step explanation:
it makes more sense then the others
Identify the slope-intercept form and the graph of the line described by the equation 2x−y=0.
Answer: y=2x
Step-by-step explanation:
Let's solve for y.
Step 1: Add -2x to both sides.
2x−y+−2x=0+−2x
−y=−2x
Step 2: Divide both sides by -1.
-y/-1 = -2x.-1
y=2x
Therefore, the y=mx+b form of this question would be y=2x
Answer:
y = 2x
Step-by-step explanation:
In order to get from standard form to slope-intercept form (y = mx + b), we have to find what we are looking for. Since we want to get slope-intercept form, we want to find y. To find y, we isolate it.
2x - y = 0
Subtract 2x from both sides...
(2x - 2x) - y = (0 - 2x)
Now we have - y = -2x + 0.
But wait, we can't have a negative y... so we simply divide by -1.
(-y/-1) = (-2x/-1) + (0/-1).
Since 0 divided by any number is just zero, we can drop it. Now that y is positive, we have our answer!
what is 0.3, 2., 0.321, 2.52 ordered from least to greatest
Answer:
0.321 ,0.3 ,2, 2.52
Step-by-step explanation:
Pay attention in class child
y = 2x + 7
y - 2x = 7
Is it no solution, exactly one solution, or infinitely many solutions
PLEASE HELPPPPPP PLSSSS
Answer:
Infinite solutions
Step-by-step explanation:
you add 2x to both sides of the bottom equation and then BAM they are coinciding
Find k(3) for the function k(n) =2n²
Answer:
k(3) = 18
Step-by-step explanation:
k(n) = 2n²
k(3) = 2 * (3)²
k(3) = 2 * 9
k(3) = 18
PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
Answer:
1/2 is the slope
Step-by-step explanation:
(5x – 3 – x²) + (8x^2– 1+x)
Answer:
7x^2+6x-4
Step-by-step explanation:
(-x^2+5x-3)+(8x^2+x-1)
Just combine like terms.
-x^2+8x^2= 7x
5x+x= 6x
-3-1= -4
The price of a visit to the dentist is $50 . If the dentist fills any cavities, an additional charge of, 100$ per cavity gets added to the bill.
If the dentist finds cavities, what will the cost of the visit be?
Write your answer as an expression.
Answer:
50+100x=?
Step-by-step explanation:
50 is the amount of money it is for a visit and the x represents how many cavities are being filled and the 100 is for how much it is per cavity to be filled. For example if you needed 3 cavities filled then it would be 50+(100x3).
(Btw sorry if the equation for the step-by-step explanation is incorrect)
Some one pls help me with this
Answer:
JKL=127°
BEF=63°
m 1=90°
CBY=66°
Step-by-step explanation:
JKL:
the two lines are parallel and cut by one line so the corresponding angles just be the same.
BEF:
(7x-14)=4x+19
add 14 to each side
7x=4x+33
subtract 4x from each side
3x=33
divide each side by 3
x=11
implement that into 4x+19
4(11)+19
44+19
63
m 1:
Since the congruent angles is 90 and 90 + m 1= 180° the m 1 has to be 90°
3x+9+6x=180 since they are corresponding angles on a parallel line and corresponding angles must equal 180° in total
9x+9=180
subtract 9
9x=171
divide each side by 9
x=19
3(19)+9
66°
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
The baker's recipe for a loaf of bread calls for 12 oz of flour. If he uses all of his flour to make loaves of bread, how many loaves can he bake in seven days?
This question is incomplete
Complete Question
A baker uses 5.5 Ibs of flour daily
The baker's recipe for a loaf of bread calls for 12 oz of flour. If he uses all of his flour to make loaves of bread, how many loaves can he bake in seven days?
Answer:
51.3 loaves of bread
Step-by-step explanation:
Converting 5.5 Ibs to oz (ounces)
1 Ibs =>12 oz
5.5 Ibs => x
Cross Multiply
12 × 5.5 => 88 oz
1 loaf of bread =>12 oz
Hence, in 1 day
12 oz =>1 loaf of bread
88 oz => x
x =>88 oz/ 12 oz
x => 7.3333333333 loaves of bread
Hence, he can make 7.3333333333 loaves of bread in 1 day
Hence, in 7 days
1 day => 7.3333333333 loaves
7 days => x
x => 7 × 7.3333333333 loaves
x => 51.333333333 loaves of bread
Approximately => 51.3 loaves of bread
Is segment MY an altitude ,median or both
A.altitude
B.median
C.both
