What is angle A in the following equation?
Answer:
x= 19 degree
Step-by-step explanation:
Find the center and radius of the circle given by this equation: x^2 - 10x + y^2 + 6y - 30 = 0
Answer:
center=(5,-3)
radius = 2 unit
Step-by-step explanation:
Center with the equation x² - 10x + y² + 6y - 30 = 0 is (5, -3) and the radius is 8 units.
Circle with the given center and radius: Equation of a circle with the center (h, k) and radius 'r' is given by,
(x - h)² + (y - k)² = r²
Here, Center of the circle → (h, k)
Radius of the circle → r units
Given equation of the circle in the question is,
x² - 10x + y² + 6y - 30 = 0
Convert this equation to the standard equation of the circle.
x² - 2(5x) + y² + 2(3y) - 30 = 0
[x² - 2(5y) + 5²] - 5² + [y² + 2(3y) + 3²] - 3² = 30
(x - 5)² - 25 + (y + 3)² - 9 = 30
(x- 5)² + (y + 3)² = 64
(x- 5)² + (y + 3)² = 8²
Therefore, center of the circle is (5, -3) and radius of the circle is 8 units.
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45 points!!!!!!!!!
In AIJK, the measure of ZK=90°, KI = 5.3 feet, and JK = 2.1 feet. Find the measure of
ZI to the nearest tenth of a degree.
Answer:
< i = 21.6 degrees
Step-by-step explanation:
Side KI = 5.3 ft
Side JK = 2.1 ft
To find : = ?
Answer:
22°Step-by-step explanation:
to get the value of angle I, use the formula: x tan⁻¹Ф = h
where: x = 5.3
h = 2.1
Ф = ?
plugin values into the formula;
5.3 tan⁻¹Ф = 2.1
tan⁻¹Ф = 2.1
5.3
≈ 22°
which was 3 1\2 times more than the rainfall during september of the same year.how much rain fell during the month of september?
Answer:
Step-by-step explanation: 3 1/2
0.25(x +4) -3 = 28
What is the value of x?
Answer:
120
Step-by-step explanation:
0.25=1/4
1/4(x+4)-3=28 /times 4
1(x+4)-12=112
x+4-12=112
x-8=112
x=120
The value of x for the given expression will be equal to 120.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given expression is 0.25(x +4) -3 = 28.
Conver the value 0.25 into fractions,
0.25=1/4
Apply the mathematical operations to get the value of x below,
1(x+4)-12=112
x+4-12=112
x-8=112
x=120
Therefore, the value of x for the given expression will be equal to 120.
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When Arianna, left her house, her cell phone was 45% charged started losing charge at a constant rate. 4 hours after leaving her house, the battery had 15% remaining battery life. Write an equation for
B
,
B, in terms of
t
,
t, representing the charge remaining in Arianna's battery, as a percentage,
t
t hours after Arianna left her house.
Answer:
ur answer would be B, because you do 45-15 x 4
Step-by-step explanation:
Please help!
Assume that you remove all of the hearts from a normal deck of cards. Now, with this new hearts-only deck, how many possible five-card hands can you draw? (A normal deck of cards has 52 cards, 4 suits, and numbers 2-10, Jack, Queen, King, Ace.)
a. 4,669,920
b. 311,875,200
c. 154,440
d. 6,497,400
Answer:
c
Step-by-step explanation:
The possible way to draw 5 cards hand from set of hearts-only deck is 15,4440 .
What is permutation?Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set. The symbol [tex]P_{r} ^{n}[/tex] is used to denote the number of permutations of n distinct objects, taken r at a time.
Formula of permutation
[tex]P_{r} ^{n}[/tex] = [tex]\frac{(n!)}{(n-r)!}[/tex]
According to the question
Remove all of the hearts from a normal deck of cards.
i.e,
Total normal deck of cards = 52
On Removing hearts cards(n) = 13
Now, with this new hearts-only deck, how many possible five-card hands can you draw .
Card to draw (r)= 5
Applying formula of permutation
[tex]P_{r} ^{n}[/tex] = [tex]\frac{(n!)}{(n-r)!}[/tex]
n = 13
r = 5
Substituting the values
[tex]P_{r} ^{n}[/tex] = [tex]\frac{(13!)}{(13-5)!}[/tex]
[tex]P_{r} ^{n}[/tex] = [tex]\frac{(13*12*11*10*9*8!)}{(8)!}[/tex]
[tex]P_{r} ^{n}[/tex] = 15,4440
Hence, the possible way to draw 5 cards hand from set of hearts-only deck is 15,4440 .
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Calculate the slope between the points: (-4,5) and (0,-2)
To find the slope, use the formula y2-y1 / x2 - x1.
x1 y1 x2 y2
-4 5 0 -2
Plug these in.
-2-5 / 0- -4
-7/ 4 is your slope.
Two-thirds of Chen's homeroom class plan to participate in the school talent show. If 16 students from the class plan to participate, how many students are in the homeroom class?
Answer:
24 peeps
Step-by-step explanation:
Which expression is equivalent to 4h ÷ 5?
5h4
45h
54h
4h5
make r the subject of v=4/3 pie r^3 need some help guys
Answer:
r = [tex]\sqrt[3]{\frac{3v}{4\pi } }[/tex]
Step-by-step explanation:
Given
v = [tex]\frac{4}{3}[/tex] πr³ ( multiply both sides by 3 to clear the fraction )
3v = 4πr³ ( isolate r³ by dividing both sides by 4π )
[tex]\frac{3v}{4\pi }[/tex] = r³ ( take the cube root of both sides )
[tex]\sqrt[3]{\frac{3v}{4\pi } }[/tex] = r
The area of one feild is 16 acers and the area of the second field is 1 1/4 times bigger. A barn of wheat on the first feild makes up 37 1/2 thousands of pounds per acre,and on the second 1 2/15 times as much per acer. How much more wheat was gathered from the second feild than from the first Search instead for The area of one feild is 16 acers and the area of the second felid is 1 1/4 times bigger. A barn of wheat on the first feild makes up 37 1/2 thousands of pounds per acre,and on the second1 2/15 times as much per acer. How much more wheat was gathered from the second feild than from the first
Answer:
250 pounds
Step-by-step explanation:
Since the area of the first field is 16 acres and that of the second field is 1¹/₄ times that of the first field, the are of the second field is thus 16 × 1¹/₄ acres = 16 × 5/4 = 4 × 5 = 20 acres.
Also, A barn of wheat on the first field makes up 37 ¹/₂ thousands of pounds per acre, and on the second 1 ²/₁₅ times as much per acer. So, the amount of wheat per acre of the second field is thus 37 ¹/₂ × 1 ²/₁₅ thousand pounds per acre = 75/2 × 17/15 = 5/2 × 17 = 85/2 = 42 ¹/₂ thousand pounds per acre.
The amount of wheat gathered on the first field is thus 16 acres × 37 ¹/₂ thousands of pounds per acre = 16 × 75/2 = 8 × 75 = 600 pounds
The amount of wheat gathered on the first field is thus 20 acres × 42 ¹/₂ thousands of pounds per acre = 20 × 85/2 = 10 × 85 = 850 pounds
So, the amount of wheat gathered on the second field more than the first is thus 850 pounds - 600 pounds = 250 pounds.
8. Solve the equation below.
(2x – 5)2 = 25
x = 8 and x = -4
x = 5 and x = 0
x = 4 and x = 2
x = 5 and x = 3
Answer:
x=5 and x=0
Step-by-step explanation:
Niya worked for 5 13 hours and earned $77 at her job. What is Niya's pay rate in dollars per hour?
Answer:
5 doallar an hour
Step-by-step explanation:
adddasdda
Answer:
$14
Step-by-step explanation:
77 divided by 5.5 (which is 5 and 1/2)
77/5.5
$14 per hour
i need answer for T.L.E
Answer:
What do you mean by T. L. E?
What is the solution of the equation 8(g - 18) =160
Answer:
g = 38Step-by-step explanation:
8(g - 18) = 160
8g - 144 = 160
g = (160 + 144) / 8
g = 38
Answer:
g = 38
Step-by-step explanation:
8(g - 18) = 160
8g - 144 = 160
8g = 204
g = 38
HELP PLEASE ASAP!!!!!!!!!
Bars --------- Cost
0 - - --------- 0
1 --------- 0.50
2 --------- $1
3 ---------- $1.50
4----------- $2
5----------- $2.50
Answer:
Thank you so much izabellarobb9182
Step-by-step explanation:
The midpoint of AB is M(-6,1). If the coordinates of A are (-5,7), what are the
coordinates of B?
Answer:(7,-3)
Step-by-step explanation:
Is this true or false? Ill give brainliest
Answer:
The correct answer is FALSE
Step-by-step explanation:
False is correct because it is a proportional relationship because it passes through the origin and it is a straight line.
HAVE A GOOD DAY!
Answer:
i belive it's true
Step-by-step explanation:
HELP PLZ!!!! QUICK!!! I BEGG YOUUU!!!!!! I'LL GIVE BRAINLY!!! 10 POINTS!!!!!
which expression is equivalent to 4/9(2n-3)?
A. 2n - 3
B. 2n - 1 1/3
C. 8/9n - 1 1/3
D. 8/9n - 1/3
Expert Answer Please! Find The Missing Length.
Answer:
you add the leghts together then subtract and see whats missing, tahts your answer
Step-by-step explanation:
Which of the following best shows two elements combining to form a compound!? Explain...
Chemistry.
Answer:
C because elements are form by atoms and when we study about atom we draw atom like circle
so, that's why I think C is correct
Step-by-step explanation:
Option C best shows two elements combining to form a compound.
What is molecular structure?The term "molecular structure" refers to the structure of a molecule that merely consists of the arrangement of its atoms.
A chemical compound is a material made of several similar molecules that are linked together by chemical bonds and are made up of atoms from various elements.
Chemical compounds cannot be created when two atoms of the same element are bound together since this would need the presence of two distinct elements.
In diagram C it is obtained that atoms are combined to form the compound.
The finest example of two components combining to make a compound is in Option C.
Hence, option C is correct.
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can someone please help me with this. will give brainliest. :)
Answer:
I am pretty sure the answer is A
Find the final price CD player:89.95 discount: 15% tax:6%
An NBA Basketball court is a rectangle that is 94 feet long and 50 feet wide. What is the area of the court? What is the perimeter of the court?
Area= Sq.feet
Perimeter= Feet
Answer:Area = 4700 feet squared
Perimeter= 288 feet
Step-by-step explanation:
Length = 94 feet
Width = 50 feet
Area = Length × Width
= 94 feet × 50 feet
= 4700 feet squared
Perimeter = 2(Length + Width)
= 2(94 feet + 50 feet)
= 2(144 feet)
= 288 feet
helpppppppppppppppppppppppppppppppppppppp math will give brainy thing 50 points
Answer:
( - 10 , 6 )
Step-by-step explanation:
( [tex]\frac{x_{1} +x_{2} }{2}[/tex] , [tex]\frac{y_{1} +y_{2} }{2}[/tex] )
(- 4 + x ) / 2 = - 7 ⇔ - 4 + x = - 14 ⇒ x = - 10
( - 4 + y ) / 2 = 1 ⇔ - 4 + y = 2 ⇒ y = 6
( - 10 , 6 )
Doing old work anybody wanna help
Answer:
-8
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
Integer = whole number 1 2 3 4 etc
It can also be negative
part 3 please ASAP due tonight
Answer:
You have to read at least 5 books per month.
Step-by-step explanation:
18x≥90
Divide each side by 18
x≥5
Answer:
You have to read at least 5 books per month
Step-by-step explanation:
Just do 90 books, divided by 18 months and you get 5 books per month
What is the slope of the line represented by the equation y =
4/5x-3
Answer:
4/5
Step-by-step explanation:
This linear function is represented by the model y = mx + b where y is the output value, x is the input value, b is the y-intercept and m is the slope. The coefficient of x is the slope when y has a coefficient of 1. In this equation, it's 4/5.
11°F, 58°F, 20°F, -2°F, 2°F, and -5°F. Write the
temperatures in order from hottest to coldest.
Answer:
58°F, 20°F,11°F, 2°F , -2°F, -5°F
Answer:
58 °F , 20 °F , 11 °F , 2 °F , -2 °F , -5 °F.
Step-by-step explanation:
The biggest positive numbers go first including, 58, 20, and 11.
From there it may get confusing.
2 > -2 this is because 2 is a positive and -2 is a negative. Negative numbers are numbers that are behind zero. Whereas positive numbers are in front of zero.
-2 > -5 normally 5 would be greater than 2. However, negative numbers are backwards. Picture a number line, where positive numbers are going forward...negative numbers are going backwards.
Hope this helps! :)
