Answer:
20%
Step-by-step explanation:
4 in 20 chance
How much is 4 out of 20 written as a percent value? Convert fraction (ratio) 4 out of 20
Answer: 20%
Can someone help me with this?
Answer:
a) BD = 5
b) FD = 13
Step-by-step explanation:
For both questions we follow pythagoras therom.
For the first one we do 3^2 +4^2 = 25 and then we root this answer to 5
For the second we have to find the base of GD in order to find FD. GD will be 4^2+12^2 which equals to 160 and then you root.
Finally, we can find FD which is sqaure root of 160^2 + 3^2 = 169. The square root of 169 is 13. Answer is 13.
Answer:
Step-by-step explanation:
AD =BC = FG = EH = 3
AB = DC = EF =HG = 4
BF =AE = DH = CG = 12
Use Pythagorean theorem,
Hypotenuse² = base² +altitude²
BD² = DC² + BC²
= 4² + 3²
= 16 + 9 = 25
BD = √25
BD = 5
DG² = DC² + CG²
= 4² + 12²
= 16 + 144
= 160
FD² = DG² + FG²
= 160 + 3²
= 160 + 9
= 169
FD = √169 = 13
FD = 13
The sum of two numbers must be 14 or greater. The product of the two numbers must be less than 40. Which system of inequalities represents this situation?
A.{x+y≥14xy<40
B.{x+y≥14xy<40
C.{x+y>14xy<40
D.{x+y>14xy<40
Answer:
A
Step-by-step explanation:
x+y≥14
xy<40
What is the side length of the smallest square plate on which a 30 cm chopstick can fit along a diagonal without any overhang? The approximate side length of the square plate is black cm.
Answer: 21.21 cm
Step-by-step explanation:
Given
length of diagonal on the square is 30 cm
Suppose a is the side length of the square
and length of diagonal is given as [tex]a\sqrt{2}\ units[/tex]
So,
[tex]\Rightarrow a\sqrt{2}=30\\\\\Rightarrow a=\frac{30}{\sqrt{2}}=21.21\ cm[/tex]
Thus, the side length of the square is 21.21 cm
y = x+4
y = -2x + 1
Solve by substitution
Answer:
The answer is ( -1 , 3 ) in point form and in eqaution form it is x = -1 , y = 3
Near the equator, the Earth rotates approximately 3 4 kilometers every 3 2 seconds. What is the speed of Earth's rotation near the equator?
Answer:
Speed = 1.0625 km / sec
Step-by-step explanation:
Distance = 34 kilometers
Time = 32 seconds
Speed = ?
The relationship between these quantities is given as;
Speed = Distance / Time
Inserting the values;
Speed = 34 km / 32 sec
Speed = 1.0625 km / sec
The price of an item was reduced 25% to $30. What was the original price of the item?
А. $55.00
B. $40.00
C. $32.50
D. $22.50
Answer:
40 Percent
Step-by-step explanation:
I just used a calculator.
Select the correct answer.
A glass case is in the shape of a rectangular prism. The volume of the case is 4/125 cubic foot. How many cubic blocks with a side length of
*1/5 foot would be required to find the volume of the glass case?
A. 2
B. 3
C. 4
D. 5
Step-by-step explanation:
4 cubic blocks would be required to find the volume of the glass case.
Answer:
4
Step-by-step explanation:
im trying to help my little brother with his homework and I don't remember how to convert 54 to 5/4
Answer:
divide 54 by 9, and you get 6. this is because for every 5 sam gets bethan will get 4. if you add, that, you will get the total amount for 1 share. since there are 6 shares, you multiply that by the amount of eros sam and bethan gets each share.
Step-by-step explanation:
divide 54 by 9, and you get 6. this is because for every 5 sam gets bethan will get 4. if you add, that, you will get the total amount for 1 share. since there are 6 shares, you multiply that by the amount of eros sam and bethan gets each share.
What is the complete factorization of 4x2 − 26x + 30?
2(x + 5)(2x − 3) 2(x − 5)(2x − 3) 2(x − 5)(3x − 2) 2(x + 5)(3x − 2)
Answer:
2( 2x -3)(x- 5)
Step-by-step explanation:
step 1 . factor 2 out ( because when you multiply the 2 again with the equation it will give you the main equation)
2 ( 2x^2 - 13x + 15 )
step 2 . factor now by regrouping
2( 2x- 3 )( x - 5)
hope it helps
4 points Item 5 is unpinned. Click to pin. A cylindrical oil drum is 2.1 meters high and has a radius of 0.9 meters. How many cubic meters of oil can the drum hold? (volume)
Answer:
53.44 cubic meters
Step-by-step explanation:
A cylindrical oil drum is 2.1 meters high and has a radius of 0.9 meters. How many cubic meters of oil can the drum hold? (volume)
Volume of a cylinder = π × r² × h
r = 0.9 meters
h = 2.1 meters
= π × (0.9m)² × 2.1m
= 53.44 cubic meters
Therefore, the volume of the cylindrical oil drum = 53.44 cubic meters
What is the value of n?
help
Given
mZABD = 70°
mZCBD = 5x + 13°
mZABC = 3.x + 33
Find m ZABC:
Answer:
3x+33+5x+13=70
8x+33+13=70
8x+46=70
8x=24
x=3
Let me know if this helps!
heLP PLS I MARK BRAINLIEST ALSO PLEASE INCLUDE STEPS ON IT
Solving a Real-World Problem Involving Surface Area
A rectangular prism. A rectangle has a base of 14 inches and height of 17 inches. A rectangle has a base of 15 inches and height of 14 inches. A rectangle has a base of 14 inches and height of 8 inches. 2 triangles have a base of 15 inches and height of 8 inches.
Devon wants to build a ramp with the dimensions shown. How much wood does he need?
470 in.2
560 in.2
568 in.2
680 in.2
Answer:
second one
Step-by-step explanation:
can you help me with my question
Answer:
D
Step-by-step explanation:
I DID THE TEST RIGHT NOW
In APQR, the measure of R=90°, the measure of Z=7°, and Q= 9.4 feet. Find the
length of QR to the nearest tenth of a foot.
Answer:
i m insha i no the z=7and jehdbxh jsjzhwj
dj dad nen
7¼× 8/9×3/4
find the sum
Answer:
Step-by-step explanation:
[tex]7\frac{1}{4}*\frac{8}{9}*\frac{3}{4}=\frac{29}{7}*\frac{8}{9}*\frac{3}{4}\\\\=\frac{29*8*3}{7*9*3}\\\\=\frac{29*2*1}{7*3*1}\\\\=\frac{58}{21}\\\\=2\frac{16}{21}\\[/tex]
Why does sin30° equal 1/2?
Step-by-step explanation:
it's easy to prove in any right triangle with a 30° angle, the side opposite to that angle is half the hypotenuse. CA (1/2)BC, CA/BC=1/2
Step-by-step explanation:
Take an equilateral triangle of side.
Bisec it through a vertex and the midpoint of the opposite side.
You now have two right-angled triangles with angels 30° , 60°, 90° with the edge opposite the 30° of length 1/2 and hypotenuse 1. So
sin (30°) = 1/2/1= 1/2.
Answer: The right angled triangle you describe has angels of 45 degrees, not 30 degrees.
What you proved is sin 45 = 1\2 , which is correct.
Tell how much each person gets when they share equally 4 friends share 7 pounds of cashews
Answer:
They each get 1 3/4 pounds of cashews
Step-by-step explanation:
7 ÷ 4 = 1.75
1.75 ( 1 3/4)
1 point
1.
Joe stands at the top of a cliff and looks down at a 49-degree angle
of depression at a boulder that is 17 m away from the bottom of the cliff.
How tall is the cliff?
11.2 m
14.8 m
19.6 m
25.9 m
Answer:
Step-by-step explanation:
tan49=h/17
h=17tan49
h=19.6 m
The height of the cliff is 19.6 m tall
A right angled triangle is a triangle (has three sides and three angles) in which one of the angles measure 90°.
Trigonometric ratios is used to show the relationship between the sides of the right angled triangle and its angles.
Let h represent the height of the cliff. Let θ = 90 - 49 = 41°. Hence:
tan(41) = 17/h
h = 17 / tan(41) = 19.6 m
Therefore the cliff is 19.6 m tall
Find out more at: https://brainly.com/question/3770177
Divide 2 1/2 by 1/4 ok please
Answer:
10
Step-by-step explanation:
your answer is 10 I worked it out and it's correct
Which expression shows the result of applying the distributive property to −2(13x−15)?
Lula is reading a book for school that is 175 pages long. So far, she has read 50 pages. She can read 25 pages per hour. How many hours will it take her to finish the remainder of the book? Which answer choice best represents the unknown quantity in this problem ?
Answer: 5 hours
Step-by-step explanation:
She has already read 50 pages so we need to deduct that to calculate the answer:
= 175 - 50
= 125 pages left
She can read at a speed of 25 pages per hour. The number of hours it would take to read the remainder of the book would therefore be:
= 125 pages / 25 pages per hour
= 5 hours
Answer:
5
Step-by-step explanation:
Find two numbers whose product is 25 and whose sum is -10
A product is an answer to a multiplication problem and sum is the answer to an addition problem.
25 is the product, and -10 is the sum.
Factors of 25 is 5 and 5.
-5+-5=10.
But two negatives multiplied equals a positive.
-5 x -5=25
-5 + -5 = 10
---
hope it helps
Answer:
The two numbers are -5 and -5
Step-by-step explanation:
Let x and y be the two numbers respectively
xy = 25 --(1)
x + y = -10 --(2)
From (1), x = 25/y [You get x in terms of y]
Sub x = 25/y into (2)
25/y + y = -10 [Equation (2) is x + y = -10, but you got x = 25/y]
[Multiple the whole equation by y]
25 + y^2 = -10y
y^2 + 10y + 25 = 0 [This is a quadratic equation if you don't know]
y = -5
Sub y = -5 into (1)
x = -5
plz help me with this math question
Answer:
79
Step-by-step explanation:
Order of operations GERMDAS
Grouping: no grouping
Exponents: 9²=81 so 6÷3+81-4
Radicals: no radicals
Multiplication: no multiplication
Division: 6÷3=2 so 2+81-4
Addition: 2+81=83 so 83-4
Subtraction: 83-4=79
Answer:
79
Step-by-step explanation:
6/3+9^2-4 9^2= 81 6/3+81-4 6/3 = 2 2+81-4= 79
Mary Ellen saves 15% of each of her paychecks for her college fund. If Mary Ellen saved $60 from her last paycheck, how much was she paid?
Answer:
$400
..................
Which is a statistical question?
How long does it take 6th grade students to get to school? What is the principal's favorite breed of dog? How old was my teacher on the first day of school this year? How many months this year will have 31 days?
1.the sum of three consecutive odd number is 177 find the number
2. find three consecutive even
number which add 1524
3.when a number is doubled and the added to 13 the result is 3.8 find the number
answer step by step
Answer:
1.the sum of three consecutive odd number is 177 find the number
let three consecutive odd number be x,x+2&,x-2.
by question
answer
x+x-2+x+2=177
3x=177
x=177/3=59
x-2=59-2=57
x+2=59+2=61
required no are 59,57&61
2. find three consecutive even
number which add 1524
answer
let three consecutive even
number be x-2,x+2&x
by question
x-2+x+2+x=1524
3x=1524
x=1524/3=508
x-2=508-2=506
x+2=508+2=600
required no are 508,506&600
3.when a number is doubled and the added to 13 the result is 3.8 find the number
answer
let no be x
by question
2x+13=3.8
2x=3.8-13
x=-9.2/2=-4.6 is the required number
Which table has a constant of proportionality between y and wof
Choose 1 answer
a _______________________________
Answer:
a
Step-by-step explanation:
2 x 4 is 8
2.5 x 4 is 10
3 x 4 is 12
i’ll give brainliest please help
Answer:
D. 4.5
Step-by-step explanation:
Answer:
(4,5)
Step-by-step explanation:
Help plss thank you!!!!!!!!!!!!!!!!!!!!! I need an Expert, A genius, or either an Ace!!!!!!!!!!!!!!!!!!!!!!
Please help.
Algebra.
Answer:
the first one should be (0,-5)
the second should be (-2,1)
Step-by-step explanation:
You substitute the given value of y into your equation. 6x-y=5
6x-(-6x-5)=5
x=0
y=-6 * 0-5
y=-5
(x,y)=(0,-5)
AND
7x-6(4x+9)=-20
x=-2
y=4x(-2)+9
y=1
(-2,1)
hope this helps!