A scientist is testing a strong elastic cord for an experiment. For every 10 pounds she adds to the cord 36 , the cord stretches 1.5 inches. She writes the equation W = kl to represent this relationship, where W is weight applied and l is the length the cord 25 this us What is the constant of proportionality in her equation? Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do. ... The needs of math arose based on the wants of society. The more complex a society, the more complex the mathematical needs.
Calculate the length of the altitude (h) of the rhombus
Answer:
h = 15
Step-by-step explanation:
Use Pythagorean Theorem to solve for h.
a² + b² = c²
8² + h² = 17²
64 + h² = 289
h² = 225
h = 15
the sum of the square of two consecutive positive integers is 85. Write a quadratic equation
Answer:
2x^2 + 2x - 83 = 0
Step-by-step explanation:
Consecutive integers differ by 1
Let the first number be x
The next will be (x+1)
The sum of the squares of these two numbers is 85
so we have;
x^2 + (x + 1)^2 =85
= x^2 + x^2 + 2x + 2 = 85
2x^2 + 2x + 2-85 = 0
2x^2 + 2x - 83 = 0
i’m a little bit confused for this one i just need to know what doesn’t belong
Answer:
C
Step-by-step explanation:
there is no other line
A rocket travels in a trajectory given by the equation s = -4.9t 2 + v0t, where s is meters above ground, t is time in seconds and v0 is the initial velocity.
If the intial velocity is 49 m/sec, after how many seconds will the rocket reach its maximum height?
a. 5
b. 15
c. 10
You enter a lottery where you select 5 numbers from 1 - 30 without duplicating numbers.
How many possible combinations of numbers are there?
The class was given a test that had a total of 125 points possible. A student then earned an 84% on the test. What are the total points that this student earned, out of the possible 125 points?
Help me please!!
Answer:
Step-by-step explanation:
84/100 = x/125
x = 105 points
-18=d+4 plZ hurry thank you so much have a great day
Answer:
d = - 22
Step-by-step explanation:
- 18 = d + 4 ( subtract 4 from both sides )
- 22 = d
Solve for x. Round to the nearest tenth.
Answer:
Hope that answers your question
The graph shows the volume of oil (L litres) in a tank at time t seconds. a)find the gradient of the graph b)explain what this gradient represents. the graph intersects the volume axis at L=2 c)explain what this value represents
Answer/Step-by-step explanation:
a. Using two points on the line (0, 2) and (4, 12), find the gradient:
Gradient = ∆y/∆x = (12 - 2) / (4 - 0) = 10/4 = 2.5
Gradient = 2.5
b. The gradient, 2.5, represents the unit rate. That is, the volume of the oil in the tank per second.
i.e. 2.5 litres per second
c. The value, L = 2 represents the y-intercept, which is the starting value or initial volume of oil in the tank at 0 secs.
Hi my name is jase and i need some help on my math homework the question is Kevin is planting 15 bushes and 9 trees in rows. If he wants all the rows to be exactly the same, with no plants left over, what is the greatest number of rows Kevin can plant?
Multiply (x+9)2 need help ASAP
Answer:
2+18
Step-by-step explanation:
(x + 9)2 distribute 2 · x = 2x and 9 · 2 = 18.
2x + 18, is the answer.
If you have any further question, please reach out to me :)
giving brainliest
Find the area of the composite figure below.
Solve each system by substitution. − 7x + 2y = − 19
2y − 21 = x
Answer: the first one is x=19/7+2y/7
the second one is y=x/2+21/2
hope this help :)
Simplify.
9 + 8 + 3x
17 + 3 x
9 + 11 x
20 + x
20 x
Answer:
17+3x
that is the answer
Answer:
17 + 3x
Step-by-step explanation:
9 + 8 + 3x
=17 + 3x
because the 3 contain a valuable x that why it is add to the 17
Jessica's shop sells 7 quarts of ice cream each day. How much is this in pints?
Answer:
14
Step-by-step explanation:
a pint is 1/2 of a quart so to find the number of pints multiply the number of quarts by two
Find the equation of the line.
Use exact numbers.
Answer:
[tex]y = \frac{3}{6}x - 3[/tex]
Find the angle which is equal to its supplement.
Answer:
the angle which is equal to its supplement is 90 degree
What is the difference in length between the longest meteor and the shortest meteor?
Thanks! Hope your right! Hope you have a great day
Plsss help guys
Ill give brainly points to who ever answers this question plsss
a. What is the minimum value taken by the
expression (x – 4)2 + 6?
Answer:
2x-2
Step-by-step explanation:
Answer:
Minimum value = 6
Step-by-step explanation:
Hi, can someone help me with my math homework? I just need help with number C.
Answer:
She left, 875
Step-by-step explanation:
She are 3/4 of berries then She left 1/4 to jelly
[tex] \frac{1}{4} \times 3.5 = .875[/tex]
If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything
Answer:
total pints= 7/2
Ate 3/4 of 7/2 which is 3/4×7/2 = 21/8
left 1/4 of 7/2 which is 1/4×7/2 = 7/8
answer= 7/8
41% of 768.92m
Give your answer rounded to 2 DP.
Answer:
315.26
Step-by-step explanation:
41% of 768.92 = 315.2572
Round to 2 d.p. = 315.26
Simplify the expression
Answer:
x12
Step-by-step explanation:
(x*x*x*x*x) *(x*x*x*x*x*x)
A company plans to ship 2,000 packages of chocolate. The company randomly selects 100 packages and finds that five packages have an incorrect weight.
Based on this data, how many packages out of the 2,000 should be predicted to have an incorrect weight?
Answer: 100 have an incorrect weight
Step-by-step explanation:
You divide 2,000 by 100 than multiply by 5
Answer: it would be 100
Step-by-step explanation: I took the test and got it right
The diameter of a circle is 15 m. Find the circumference \textit{to the nearest tenth}to the nearest tenth.
Given that, the diameter of the circle 15 m. The circumference of a circle is 2πr. Then the circumference of the circle with the given diameter is 47.1 m.
What is circumference of a circle?Circumference of a circle is also called its perimeter and it describes the overall area of the surrounding circular path. The distance round a circle is its circumference, but this cannot be used as a definition if, as in many elementary treatments, distance is defined in terms of straight lines.
In these conditions, the limit of the perimeters of inscribed regular polygons may be described as the circumference of a circle as the number of sides increases without constraint. When describing abstract geometric forms as well as measuring real-world things, the term circumference is frequently used.
It is given that, the diameter of the circle = 15 m
radius r = diameter/ 2 = 15 m/ 2 = 7.5 m
circumference of circle = 2 π r
= 2 × 3.14 × 7.5 m
= 47.1 m
To find more on circumference, refer here:
https://brainly.com/question/28757341
#SPJ5
Pls help Pls help Pls help Pls help Pls help ILL GIVE BRAINLIEST
Answer:
I cant see the picture it blocked for some reason probally my pc.
Step-by-step explanation:
No Solutions
One Solution
Many Solutions
-4x+5y=7
8x-10y=-15
Answer:
No solutions
Step-by-step explanation:
The line -4x+5y=7 and 8x-10y=15 have the same slope, so they are parallel, meaning that there are no solutions
Given the first term and the common ratio of a geometric
sequence find the first five terms and the explicit formula.
a1 = - 4, r = 6
Answer:
331776
Step-by-step explanation:
The formula for geometric
sequence is given below
ar^n-1
Where a= first term, r= common ratio
From the question, a1 = - 4, r = 6 , n= 5
Then if we substitute, we have
ar^n-1
5th term= ar^n-1
= (-4×6)^(5-1)
=-24 ^ 4
=331776
Hence, the first five terms is =331776
The formula is 5th term= ar^(5-1)
NOBODY RESPONDED ON MY LAST QUESTIONS BUT I NEED HELP!!!!
Answer:
Step-by-step explanation:
4a:(3)
4b: d=don dx3=
I need help I'm confused
Answer:
KV=21
Step-by-step explanation: