Answer:
2 1/2
Step-by-step explanation:
When multiplying fractions, you multiply the numerators together and the denominators together.
4 • 5/8
Multiply 4 and 5.
20/8
You can simplify this by dividing both parts by 4
5/2
5/2 is also 2.5
2.5 written as a mixed number is 2 1/2.
This is your answer.
Hope this helps!
can you solve this for me please?
Answer:
19: 106
20: 79
21: 70
Step-by-step explanation:
Circle upper left
The central angles all add up to 360 degrees
BC + CD + 148 = 360
But CD = BC
2BC + 148 = 360 Subtract 148 from both sides
2BC = 360 - 148 Combine
2BC = 212 Divide by 2
BC = 106
20
3 of the 5 arcs are marked as being equal.
Let each of them be called = x
3x + 41 + 82 = 360 Combine
3x + 123 = 360 Subtract 123 from Both sides.
3x = 360 - 123
3x = 237
x = 237 / 3
x = 79
BC = 79
21
Unless DE and FC are diameters, this can't be solved. I will assume they are.
FB + 48 + 22 = 180.
FB + 70 = 180
FB = 110
===========
FC = FB + BD + DC
180 = 110 + 22 + DC
180 = 132 + DC
DC = 180 - 132
DC = 48
===========
BC = BD + DC
BC = 22 + 48
BC = 70
7. The daily cost of production in a video game factory is calculated using c(x) = 400 + 25x, where x is
the number of complete video games manufactured. Which set of numbers best defines the domain of c(x)?
(1) integers
(2)positive real numbers
(3) positive rational numbers
(4)whole numbers
Answer:
(4) whole numbersStep-by-step explanation:
Given function:
c(x) = 400 + 25xwhere x is the number of complete video games.The complete video games can be expressed as positive integers or whole numbers, so the domain is whole numbers.
Correct choice is (4)
Answer:
Whole Number
Explanation:
Domain : The set of all the input values (i.e. the value of x ) in the function is called domain
The daily cost of production in a video game factory is calculated using c(x) = 400 + 25x
Cost expression : C(x) = 400 + 25x
Cost expression : C(x) = 400 + 25x
As x defines the number of complete video, since number of video cannot be negative.
1) Integers : integers are the numbers which can be positive, negative or zero, but cannot be a fraction
As, number of videos cannot be negative
so, x cannot be any integers
So, Integers is not the domain
2) Positive real numbers : Real numbers are the numbers which include both rational and irrational numbers.
As the x represent the complete number of video games, thus, x cannot be irrational
Hence, Positive real numbers is not the domain
3) Positive Rational Number : a number is expressed in the form of p/q then it is a rational number
The number of videos are in the complete number, so a fraction cannot be a complete number, thus, rational number cannot be a domain.
4) Whole Number : Whole numbers include natural numbers that begin from 1 onwards
As Numbers of videos are the complete number, and they are always positive, which is the defination of whole number, Domain is whole number
DUE SOON!
A spinner has 8 equal spaces. If you spin it, what is the probability that you 2 points
spin a number greater than 5?
Answer:
78
Step-by-step explanation:
probability of getting a 5 which is 78.
Another way to look at this is that if we know the probability of the result being 5, then the probability of it not being 5 is just one minus that probability. We know that 5 is just one out of the 8 possibilities, so
P5=18
So the probability of not 5 is
Pnot5=1−P5=1−18=78
I have big brain
please sleep me helpppp
Answer:
help me first on this question
Step-by-step explanation:
Write in simplest form: 8t2/(36t) = _____
Combine like terms: m + 11g - 7g + 7m
Answer:
4g+8m
Step-by-step explanation:
7m+m=8m 11g-7g=4g
what is the distance between (0,0) and (8, 15) on the coordinate plane?
Answer:
23 steps away, add whatever numbers you have, aka start at 0 and go over 8 and then up 15 8+15
Step-by-step explanation:
find the missing side of the triangle
Answer:
x= 8 km
Step-by-step explanation:
measurement used:
When getting measurement the missing side occupies 1 more than a half of 15km
Answer:
x = 8km
Step-by-step explanation:
Use Pythagorean Theorem:
c2 = a2 + b2
In the diagram given, the hypotenuse (c) is 17 so substitute these values into the equation
17^2 = x^2 + 15^2
Take 15 to the power 2, to the other side.
17^2 - 15^2 = x^2
Solve to get
64 = x2
Square root both sides so
x = 8
13=d divided by 6
(solve for d, thanks!)
Answer:
78 = d
Step-by-step explanation:
13 = d/6
Multiply each side by 6
13*6 = d/6*6
78 = d
SWYK 16: Slope and Y-Intercept
The equation y = 10x + 15 represents a gym that charges. What is the slope and y-intercept?
Ok this is the last one :)
Answer:
12 53,9
Step-by-step explanation:
Answer:
12,53,9
Step-by-step explanation:
:PPP
PLS HELP DUE TODAY,25 POINTS TO BRAINLIEST
Answer:
I think it’s H
Step-by-step explanation:
Answer:
The answer is H bacause it has the most number of colours
f(x)=((x^2)+5)/(2) please help
Answer:
the answe
Step-by-step explanation:
PLZ Answer I will mark brainiest
Find the value of x in the figure shown
A. 20
B. 22
C. 45
D. 80
what is the answer please i need help
Answer:
Step-by-step explanation:
SOEMOME PLEASE HELO
Answer:
the secound one
Step-by-step explanation:
hope it helped:3
can someone pls answer :/
Katelyn drove 210 miles in 3 hours. Samantha
drove 540 miles in 8 hours,
Who drove faster? Explain your answer.
please help it’s for 21 points
Answer:
katelyn
Step-by-step explanation:
you divide distance by time to get rate, and katelyn has a faster rate because 210/3 is more than 540/8
Answer:
Katelyn drove faster
t=d/s
s=d/t
d=s*t
Step-by-step explanation:
s=d/t is what we are using to find the speed
Katelyn- 210/3=70
Samantha-540/8=67.5
70>67.5
Katelyn drove faster
show all your work?
and lease help me out ASAP
Answer: 20
Step-by-step explanation:
3y + 2 = 62
3y = 60
y = 20
What’s the three rules of prime factoring 15 points
Answer:
15 = 1 x 15 or 3 x 5. Factors of 15: 1, 3, 5, 15. Prime factorization: 15 =
Step-by-step explanation:
Step-by-step explanation:
1. Find two prime numbers, that when added together, equal the number you started with. (Repeat this step until you have reached step 2.
2. Factor until you have prime numbers.
3. Prime numbers can only be divided by themselves or 1.
Good luck to you!
Which function is equivalent to
g ( x ) = x 2 - 15 x - 54?
Factor the trinomial 3x2 + 13x − 10 by grouping.
Answer:
(3x - 2) (x+5)
Step-by-step explanation:
3x^2 + 13 - 10
15× - 2 = -30
15+-2 = 13.....substitute 15x - 2x in place of 13x
3x^2+15x-2x-10
Factorise the first two values, thrn the second two
3x (x+5) - 2 (x+5)
Gathering the like terms together you eill be left with the following
(3x - 2) (x+5)
The factors of the trinomial 3x² + 13x - 10 is (3x-2)(x+5).
What is Factorization?The breaking or decomposition of an entity (such as a number, a matrix, or a polynomial) into a product of another entity, or factors, whose multiplication results in the original number, matrix, etc., is known as factorization or factoring in mathematics.
we have,
Trinomial= 3x² + 13x - 10
Now, factories using splitting the middle term we get
3x² + 13x - 10
= 3x² + 15x - 2x - 10
= 3x( x +5) - 2(x+ 5)
= (3x - 2) (x+ 5)
So, the factors are (3x- 2(x+5)
Learn more about Factorization here:
https://brainly.com/question/30525927
#SPJ5
What is 1390000000 in scientific notation?
Answer:
139 e7
Step-by-step explanation:
I'm not good at scientific notation but I think I'm getting better....
Answer:
1.39 x 10^9
Step-by-step explanation:
a:84
b:92
c:88
d:117
Answer:
117
Step-by-step explanation:
QUESTION 13: Select each expression that is equivalent to -2 -3(n-1)."
3n+ 3-2
4(n + 1)
-2(n+2) + 5(n+1)
3n + 1
-5(n+1)
n+1
First, we have to simplify the first expression so we know what we're lookin' for.
-2-3n+3, -3n+1
We can scroll down the list of choices, and we can already see the answer.
---
sorry if this doesn't help
1. An observer 80 ft above the surface of the water measures an angle of depression of 0.7o to a distant ship. How many miles is the ship from the base of the lighthouse? (5280 ft = 1 mile)
Commercial airliners fly at an altitude of about 10 km. They start descending toward the airport when they are far away, so that they will not have to dive at a steep angle.
2 a) If the pilot wants the plane's path to make an angle of 3o with the ground, at what horizontal distance must the plane start descending?
b) If the pilot starts descending a ground distance of 300 km from the airport, what angle will the plane's path make with the horizontal?
3. A submarine at the surface of the ocean makes an emergency dive, making an angle of 21o with the surface. If it travels for 300 m along a downward path, how deep will it be?
Answer:
1. The distance of the ship from the base of the lighthouse is approximately 1.24 miles
2. a)The horizontal distance the plane must start descending is approximately 190.81 km
b) The angle the plane's path will make with the horizontal is approximately 18.835°
3. The depth of the submarine is approximately 107.51 m
Step-by-step explanation:
The
1. From the question, we have;
The height of the observer above the water = 80 ft.
The angle of depression of the ship from the observer, θ = 0.7°
Let the position of the observer be 'O', let the location of the ship be 'S', let the point directly above the ship at the level of the observer be 'H', we have;
[tex]tan(\theta) = \dfrac{Opposite \ leg \ length}{Adjacent \ leg \ length} = \dfrac{HS}{OH}[/tex]
[tex]The \ horizontal \ distance \ of \ the \ ship, OH = \dfrac{HS}{tan(\theta) }[/tex]
HS = The height of the observer = 80 ft.
Therefore, we get;
[tex]The \ horizontal \ distance \ of \ the \ ship, OH = \dfrac{80 \, ft.}{tan(0.7^{\circ}) } \approx 6,547.763 \ ft.[/tex]
The distance of the ship from the base of the lighthouse ≈ 6,547.763 ft. ≈ 1.24 miles
2. The elevation of the plane, h = 10 km
The angle of the planes path with the ground, θ = 3°
Similar to question (1) above, the horizontal distance the plane must start descending, d = t/(tan(θ))
∴ d = 10 km/(tan(3°)) ≈ 190.81 km
The horizontal distance the plane must start descending, d = 190.81 km
b) If the pilot start descending 300 km from the airport, the angle the plane's path will make with the horizontal, θ, will be given as follows;
From trigonometry, we have;
[tex]tan(\theta) = \dfrac{Opposite \ leg \ length}{Adjacent \ leg \ length}[/tex]
Where the opposite leg length = The elevation of the plane = 10 km
The adjacent leg length = The horizontal distance from the airport = 300 km
[tex]\therefore tan(\theta) = \dfrac{10 \, km}{300 \, km} = \dfrac{1}{3}[/tex]
[tex]\theta = arctan\left(\dfrac{1}{3} \right ) \approx 18.835^{\circ}[/tex]
The angle the plane's path will make with the horizontal, θ ≈ 18.835°
3. The angle at which the submarine makes the deep dive, θ = 21°
The distance the submarine travels along the inclined downward path, R = 300 m
By trigonometric ratios, we have;
The depth, of the submarine, 'd' is given as follows;
[tex]si(\theta)= \dfrac{Opposite \ leg \ length}{Hypotenuse \ length} = \dfrac{d}{R}[/tex]
∴ d = R × sin(θ)
d = 300 m × sin(21°) ≈ 107.51 m
The depth of the submarine ≈ 107.51 m
WHAT ORDER DO THESE GO IN HELPPPPPP AII!?
Answer:
They are correct. :)
Step-by-step explanation:
S
А.
B
D
с
Given ABCD is an isosceles trapezoid with
BC=9x+1 and AD=12x-11, find the value of x.
If the answer is 9, move to I
If the answer is 3, move to H
If the answer is 7, move to Y
If the answer is 4, move to T
Answer:
x = 4
Step-by-step explanation:
A trapezium is a quadrilateral (has four sides and four angles) with one pair of parallel sides. A trapezium is said to be isosceles if the bases are parallel, the two other sides known as the legs are equal and diagonals of the trapezium are equal to each other.
In trapezoid ABCD, BC and AD are the diagonals.
Hence BC = AD (property of isosceles trapezoid)
9x + 1 = 12x - 11
Simplifying:
12x - 9x = 1 + 11
3x = 12
Dividing both sides by 2:
x = 4
(2.8×10⁸)⁴×(1.6×10⁶)÷2.1×10¹⁵,what's the answer in scientific notation correct to 3 significant figures?
Answer:
it should be 9375 if to do all opf this work
Step-by-step explanation:
Solve: negative 1 over 2 x + 3 = −x + 7
Answer:
Assuming what you meant was [tex]\frac{1}{2}x + 3 = -x +7[/tex], the answer would be x = 8