How do you solve this?
Answers
Answer:
a=4, b=144
Step-by-step explanation:
Let's take two random points of X and y and simplify the equation containing a and b; let's go,
Points (4,-5); (6,0)
For (4,-5)
-5= a -b/ (4 x4)
-5= a- b/16; -80= 16a - b[ by multiplying through by 16]
For (6,0);
0= a -b/ ( 6x6) ; 0=a- b/36
Multiplying through by 6, we have:
0= 36a-b; 36a=b;
So the modified equation of a and b are;
b=36a
b=16a+ 80[ modifying the derived expression moving b to the left]
So if we equate both expressions,
We have:
36a=16a+80;
36a-16a=80, 20a= 80; a= 80/20= 4;
a=4;
Substituting the value of a into any expression for b; we have
b= 36a= 36x4 =144
Hence a=4, b= 144
Y=a-b/x².
Using first column: x=1, y=140
140=a-b
Using last colimn: x=6, y=0
0=a-b/36, b=36a
140=a-b=a-36a=-35a
a=-140/35=-4
b=36a=36×(-4)=-144
Answer: a=-4, b=-144
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Answers
Approximate circumference of a semicircle with a radius of 30 centimeters is 94.2 centimeter
Solution:
Given semicircle with a radius of 30 centimeters
To find: approximate circumference of a semicircle
To find circumference of semicircle we can divide the circumference of circle by 2
circumference of semicircle = circumference of circle 2
Substituting the given radius = 30 cm,
Thus approximate circumference of a semicircle with a radius of 30 centimeters is 94.2 centimeter
Answer:
94.2
Step-by-step explanation:
Answers
For girls: 12/30 = 4/10 = 2/5
For boys: 16/40 = 4/10 = 2/5
The ratios of the number of students on the team to the number of students trying out for both boys and girls are the same since 12/30 = 16/40...
(1 pt)
What is the area of the rectangle?
A.
0.9416 mi²
B.
1.8832 mi²
C.
1.95 mi²
D.
3.90 mi²
2.
(1 pt)
What is the area of the rectangle?
A.
40 km2
B.
40 m2
C.
26 km2
D.
26 m2
3.
(1 pt)
What is the area of the rectangle?
A.
1.125 yd²
B.
2.250 yd²
C.
4.50 yd²
D.
11.25 yd²
4.
(1 pt)
What is the area of a rectangular playground with a length of 84.5 ft and a width of 53 ft?
A.
137.5 ft²
B.
275 ft²
C.
4478.5 ft²
D.
44,785 ft²
5.
(1 pt)
Which measurement is the closest approximation of the rectangle’s area?
A.
16 m²
B.
32 m²
C.
65 m²
D.
70 m²
Answers
There are no dimensions available here, so i have no idea what the questions are talking about.
but i can help u with 4.
so multiply 84.5 * 53, that equals 4,478.5
B. (8, 1), (-5, 4), (2, 1), (8, 2)
C. (2,4), (-5, 2), (8, 1), (-6, 2)
D.
(2,0).(-5, 3), (8, 1), (-5,5)
Answers
Answer: OPTION C
Step-by-step explanation:
A relation is a function when each input value has one and only output value.
For option A:
(2,4), (-5, 6), (2, 3), (-6, 2)
You can observe that the input value "2" has two output values. Then it is not a function.
For option B:
(8, 1), (-5, 4), (2, 1), (8, 2)
You can observe that the input value "8" has two output values. Then it is not a function.
For option C:
(2,4), (-5, 2), (8, 1), (-6, 2)
You can observe that each input value has only one output values. Then it is a function.
For option D:
(2,0).(-5, 3), (8, 1), (-5,5)
You can observe that the input value -5 has two output values. Then it is not a function.
For a set of data to be a function each x value has to have different y values.
A. (2,4), (-5, 6), (2, 3), (-6, 2)
B. (8, 1), (-5, 4), (2, 1), (8, 2)
D.(2,0).(-5, 3), (8, 1), (-5,5)
The bolded coordinates are the ones of each data set that makes it not a function. As you can see the x values all have different y values.
This leaves C. as the answer!
Hope this helped!
Answers
Answer:
1024
Step-by-step explanation:
9216/9=1024
Answers
30*35 = 1050 dollars per 1 week
now, we do 1050 dollars per 1 week times 50 weeks per 1 year.
1050*50 = 52500 dollars per 1 year
finally, we divide 52500 dollars per 1 year by 1,000,000 dollars earned overall and we get the fraction
400/21
that doesn't come out to an exact decimal, so we get either
400/21 years or the rounded decimal of
19.0476 years
so, approximately 19 years.