Answer:
Since 26 out of a total of 520 batteries were defected and she wants to randomly select 20 batteries for it.
The formula she will be using will be randInt(1,520) to generate 20 random numbers.
the value of 21b - 32 + 7 b - 20 b is
A man walks due west for 4 km. He then
changes direction and walks on a bearing of
197° until he is south-west of his starting point.
How far is he then from his starting point? with workings
Answer:
Step-by-step explanation:
Let the starting point be B and the stopping be C as shown in the diagram below.
therefore, the angle at A will be (197-90)degree = 107degree
the angle at B is 45degree, since it is directly south west of C.
therefore the angle at C will be A+B+C=180 degree(sum angle of a triangle)
107+45+C=180
therefore, C=180-107-45=28degree
therefore, using sine rule gives;
sinA/a =sinC/c
sin107/a=sin28/4
0.9563/a=0.4695/4
0.9563/a=0.11736
therefore, a =0.9563/0.11736=8.148=8.1km(approx.)
find the value of x
plz help
Answer:
x=19
Step-by-step explanation:
82+79=161
180-161=19
Look at this shape:
Which image shows a reflection?
Answer:
I think it's A
A batsman scored the following runs in his first six innings. 58,73,21,77,99,32. Find the mean of the runs scored by him.
Answer:
60
Step-by-step explanation:
A Batman scored the following runs
58, 73, 21, 77, 99, 32
The mean can be calculated as follows
= 58+73+21+77+99+32/6
= 360/6
= 60
Hence the mean is 60
the equation -3y= 5/3x + 4 expressed in standard form as
Answer:
its 4 and my brain is about to blow up cause i just know this
Step-by-step explanation:
angle A and angle B are vertical anglesIf m angle A=(5x-3)^ and m angle B=(4x+21)^ then find the measure of angle A .
[PLEASE HELP]
Answer:
78
Step-by-step explanation:
5x3+4+21=78
Answer:
m<A=117°
Step-by-step explanation:
Based on the given from the problem, we know that angle A and angle B are vertical angles
Vertical angles are congruent; they have the same value.
we know that the measure of angle A is (5x-3)° and the measure of angle B is (4x+21)°
since we know they are congruent via vertical angles theorem, we can make the two values equal to each other
5x-3=4x+21
add 3 to both sides
5x=4x+24
subtract 4x from both sides
x=24
we found the value of x. However, the question asks for the value of angle A, which is (5x-3)°
we substitute our known value to find the value of angle A
m<A= (5*24-3)°
m<A=(120-3)°
m<A=117°
the measure of angle A is 117°
Hope this helps!
answer for this please
Step-by-step explanation:
Multiply: 6 (children) • 2.15 (cost per ticket) = 12.90
Add: 12.90 + 4.90 = £17.80
A blood bank needs 7 people to help with a blood drive. 17 people have volunteered. Find how many different groups of 7 can be formed from the 17 volunteers.
PLEASE HELP ASAP ILL GIVE BRAINLY PLEASE
Answer:
35
Step-by-step explanation:
Do the opposite of addition to find the answer.
62 - 27 = 35
SELECT THE BEST ANSWER
Expand the following product: (3a - 2b)(a + 5b)
a) 3a? + 13 ab - 1062
b) 3a2 + 13ab + 1062
c) 3a2 + 17ab - 1062
d) 3a2 - 13ab - 10b2
Answer:
3a² + 13ab - 10b²
Step-by-step explanation:
(3a - 2b)(a + 5b)
Each term in each bracket multiplies each term in the other bracket.
3a(a + 5b) -2b(a + 5b)
3a² + 15ab - 2ab - 10b²
3a² + 13ab - 10b²
Find the area of the shaded region.
Round to the nearest tenth.
150°
27.8 in
Area = [? ] in?
The area of a shape is the amount of space on the shape.
The area of the shaded region is 819 inches square
How to determine the area of the shaded regionStart by calculating the area of the sector using:
[tex]A = \frac{\theta}{360}*\pi r^2[/tex]
So, we have:
[tex]A = \frac{150}{360}*\frac{22}{7} * 27.8^2[/tex]
[tex]A = 1012.05[/tex]
Next, calculate the area of the isosceles triangle using:
[tex]A = \frac 12 r^2\sin(\theta)[/tex]
So, we have:
[tex]A = \frac 12 * 27.8^2 * \sin(150)[/tex]
[tex]A = 193.21[/tex]
The shaded area is the difference between the areas of the sector and the triangle.
So, we have:
[tex]A = 1012.05 - 193.21[/tex]
Calculate the difference
[tex]A = 818.84[/tex]
Approximate
[tex]A = 819[/tex]
Hence, the area of the shaded region is 819 inches square
Read more about areas at:
https://brainly.com/question/10090807
Answer:
A= 818.4
Step-by-step explanation:
Mr. See weights his grades. Tests are worth 60%, quizzes are worth 25% and homework is 15%. Joey's test average is an 82, his quiz average is a 77, and his homework average is a 98. What is Joey's current grade?
Answer:
83.15
Step-by-step explanation:
Joey's current grade can be determined by weighting his scores with the weights given and adding the results
Tests = 0.6 x 82 = 49.2
Quizzes = 0.25 x 77 = 19.25
homework = 0.15 x 98 = 14.7
49.2 + 19.25 + 14.7 = 83.15
please help
answer the question
please don't steal the points
HELPP I WILL BE GIVING BRAINLIEST AND 30 POINTS
FBG= 10*
ABC= 180*
Now I will uhhhhhhhhhhhhhhhhhhhhhhhhhhhh yeah
The recycling center processed 36,000 pounds of recyclable materials. How many tons of recyclable materials are processed?
A 18 T
C 72,000 T
B 38,000 T
D 180 T
Answer:
18 Tons
Step-by-step explanation:
36,000 / 2000 = 18
Find the range of the following data 400, -70,-100, -1 ,300 ,290 *
200
470
500
401
Answer:
500 is the range
Step-by-step explanation:
You have to find the difference between the smallest and greatest numbers on the list. It would be 400 - (-100), which equals 500.
the real great pyramid has a square base with side length 750 feet and a height of 5000 feet. If the student has 162 cubic inches of clay for her model, what height will her pyramid be in inches?
Answer:
i hope this picture help u
Which two values of x are roots of the polynomial below? (select all that apply
3x^2-3x+1
The roots of the given quadratic equation 3x² - 3x + 1 are x = [3 + √(-3)]/6 and x = [3 - √(-3)]/6 thus options (A) and (B) are correct.
What is a quadratic equation?An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, and a must not be zero.
As per the given equation,
3x² - 3x + 1
To find the roots of the above quadratic equation,
3x² - 3x + 1 = 0
x = [-(-3) ± √((-3)² - 4×3×1)]/(2×3)
x = [3 ± √(-3)]/6
x = [3 + √(-3)]/6 and x = [3 - √(-3)]/6
Hence "The roots of the given quadratic equation 3x² - 3x + 1 are x = [3 + √(-3)]/6 and x = [3 - √(-3)]/6".
For more about the quadratic equation,
https://brainly.com/question/17177510
#SPJ2
pls Help asap thx alot
Answer:
y = 42x + 2
Step-by-step explanation:
yeah...
https://pad let.com/lil_g/ha7w6l19bzmv3cd0
find the chaange original 8 new 12
Answer:
so my calculations show that (12.1 / 9.8) - 1 =~ 0.2346938775510204081632653061224 that is about a percentage of 23.469% thank you for asking that question, oh and this answer is also on yahoo
Step-by-step explanation:
I need help with these questions
PLS HELP ASAP! GIVING BRAINLIST
Answer:
the answer is B or q^2t^5/p^3
hi Zara what's up.........
.?
Answer:
hy
Step-by-step explanation:
Sophiya
watcha doing??
From which set of dimensions could a triangle be constructed?
side length of 7
side length of 8
side length of 15
side length of 8
side length of 5
side length of 14
side length of 6
side length of 3
side length of 10
side length of 2
side length of 6
side length of 7
Answer:
side length of 2
side length of 6
side length of 7
Step-by-step explanation:
So remember the two shorter lengths added together have to be greater than the longest side length
For the first answer choice we add 7 and 8
7+8=15
The two shorter sides added are not greater then the longest side so that is not the answer
For the second answer choice we add
8 and 5
8+5=13
13 is not greater than 14 so this is not the answer choice either
For the third one we add 6 and 3
6+3=9 which is not greater than 10 so this is not the answer
For the last one we add 2 and 6
2+6=8 which is greater than 7 so this one is the answer
Answer:
D.
Step-by-step explanation:
An equation is given.
2
x
=
26
2x=26
Which calculation would need to be done to solve the equation?
A
divide both sides by 2626
B
multiply both sides by 2626
C
divide both sides by 22
D
multiply both sides by 2
D because 2 has a x next to it so you divide by 2 on both sides
Puzzle 5
Can you find the slope-intercept equation of each line and type the correct
code? Please remember to type in ALL CAPS with no spaces. *
Puzzle #5
12
answer choices
A: B: C:
y = 4x - 4y = x +1 ly = 2x +1
D: E:
F: 1
Y = 3x - 4y = -2x+3y=x+1
G: 1 H:
I:
yox + 3
3
2
v=3*-45
1
2
3
-4 -3 -2 -1
-1
4
13
Type the 4
letter code into
the answer
box All CAPS,
no spaces
-2
-3
4
Your answer
Back
Next
The required equation of green and blue line is y = 3x- 4 and y = x+1
Equation of a lineThe standard equation of a line is expressed as y = mx + b
where;
m is the slope
b is the y-intercept
Note that the y-intercept is the point where the line cuts the y-axis
From the graph, the y-intercept of the green line is 3 while that of the blue is 1. This shows that the required equation of green and blue line is y = 3x- 4 and y = x+1
Learn more on equation of a line here; https://brainly.com/question/24656140
please help I'm desperate
Answer:
Um i think 0.25
Step-by-step explanation:
Im sorry there is a 80% chance im wrong (im only in 6th)
5. 7 − 4.8 + 110 × 9 =
Answer: 990.9 .9+ 990
Step-by-step explanation: you have to do order of operations witch is PEMDAS so you do Parentheses then exponents multiplication or division and addition or subtraction but you do it depending how it starts and in this case you have to subtract the 2 numbers and then add the answer of the multiplication problem
Answer:
990.9
Step-by-step explanation:
Multiply the numbers
Subtract and then add what left
Mrs. Stone bought some peaches at $1.49 per pound and some blueberries at $1.99 per pound to use in a fruit salad she is making for a family reunion picnic. She paid $20.38 for a total of 12 pounds of the two kinds of fruit. How many pounds of peaches did she buy? A. 7 lb B. 6 lb C. 5 lb D. 4 lb
Answer:
B
Step-by-step explanation: