Answer:
1260
Step-by-step explanation:
Subtract 21 from 8,to get 13.Multiply 13 to the 20 dollars,when you do that you get 260.You add the 260 and the 1000 dollars together.
can someone help me with these problems please?
Answer:
Please who knows the full question to this problem am unable to see the full question.....
Volume varies 1/P.
V=K/P.
21=K/1.
K=21.
The relation is V=21/P.
....if P=0.7 and K=21.
and the relation to solve the question is V=21/P then put the value of P in the formula which will be...
V=21/0.7.
V=30m^3.
This is my answer..i hope it helps
Help me on this please.
Answer: Choice A)
Approximately 0.4 units or about 24 miles approximately
=========================================================
Explanation:
B = Santa Barbara's location
C = Santa Cruz Island's location
Point B is located at (34.4, 119.714)
Point C is located at (34, 119.726)
Use the distance formula to find the distance from B to C
[tex]d = \sqrt{ (x_1-x_2)^2 + (y_1-y_2)^2}\\\\d = \sqrt{ (34.4-34)^2 + (119.714-119.726)^2}\\\\d = \sqrt{0.160144 }\\\\d \approx 0.40017995951821\\\\d \approx 0.4\\\\[/tex]
Unfortunately, there isn't enough info to be able to go from 0.4 units to roughly 24 miles, so I don't know how your teacher is doing that step. But luckily, only choice A mentions 0.4, so this has to be the answer.
Evaluate x5 + y(-4)
When x = -4, y = 7
Answer:
-48
Step-by-step explanation:
Plug x and y in to the expression,
-4(5) + (7)(-4) = -20 - 28 = -48
solve the equation for t
Answer:
t= -3.7
Step-by-step explanation:
1. 5( t+3)= -3.5
2. 5t+15= -3.5
3. 5t= -18.5
4. t= -3.7
(b) For a function h(theta)=sin3 theta (Theta is in Radian).
Find h(pi/3)
Find h(pi/2)
Part (i)
Plug in theta = pi/3 to get
h(theta) = sin(3theta)
h(pi/3) = sin(3*pi/3)
h(pi/3) = sin(pi)
h(pi/3) = 0 ... use a calculator or the unit circle
Answer: 0=================================================
Part (ii)
Plug in h = pi/2
h(theta) = sin(3theta)
h(pi/2) = sin(3pi/2)
h(pi/2) = -1
Answer: -1Triangle A B C is shown. Angle C A B is a right angle. Angle A B C is 30 degrees and angle B C A is 60 degrees. The length of A C is 9 and the length of hypotenuse C B is 18. Which trigonometric ratios are correct for triangle ABC? Select three options.
Answer:
SinB = 1/2, SinC = √3/2 and
TanC = √3
Step-by-step explanation:
The question lacks options. Find the complete question in the comment section.
Given triangle ABC, we will use the SOH, CAH, TOA trig identity to get the correct ratio.
Given the hypotenuse BC = 18 and one of the other two sides AC = 9, we can get the third side AB using Pythagoras theorem.
BC² = AC²+AB²
18² = 9²+AB²
2² = 1²+AB²
AB² = 4-1
AB² = 3.
AB = √3
Making <ABC as reference angle, AC will be opposite and AB will be the adjacent.
Sin<ABC = opp/hyp = AC/BC
Sin<ABC = 1/2
Cos<ABC = adj/hyp = AB/BC
Cos<ABC = √3/2
Tan<ABC = opp/adj = AC/AB
Tan<ABC = 1/√3
Making <BCA as reference angle, AB will be opposite and AC will be the adjacent.
Sin<BCA = opp/hyp = AB/BC
Sin<BCA = √3/2
Cos<BCA = adj/hyp = AC/BC
Cos<BCA = 1/2
Tan<BCA = opp/adj = AC/AB
Tan<BCA = √3
Frim the above calculation, the correct options are sin<ABC = 1/2, Sin<BCA = √3/2 and Tan<BCA = √3
Claire is going to an amusement park. The price of admission into the park is $30, and once she is inside the park, she will have to pay $4 for every ride she rides on. How much money would Claire have to pay in total if she goes on 9 rides? How much would she have to pay if she goes on r rides?
Answer:
1. $66
2. 30 + 4r
Step-by-step explanation:
Let
Price of admission into the park=$30
Price of every ride in the park=$4
Number of rides =x
Total cost of going to the park= 30+4x
1. How much money would Claire have to pay in total if she goes on 9 rides
Total cost of going to the park= 30+4x
When x=9
=30+4x
= 30 + 4(9)
=30 + 36
=$66
2. How much would she have to pay if she goes on r rides?
When x=r
Total cost of going to the park= 30+4x
= 30 + 4(r)
=30 + 4r
Answer:
Cost for 9 rides=$66, Cost for r rides=30+4r
Step-by-step explanation:
Cost for 9 rides: 30+4(9)=66
Cost for r rides: 30+4r
An object is moving at a speed of 95 kilometers every 7.5 weeks. Express this speed in
feet per day
Answer:
5,936.76 feet/dayStep-by-step explanation:
Formula to use to get the speed is expressed as speed = Distance/Time
Given parameters
Distance = 94km
Time = 7.5weeks
Since we are to express the answer in feet per day, we will convert the distance to feet and time to days.
For the distance:
Given the conversion
1 km = 3280.84 feet
95km = (95*3280.84)feet
95km = 311,679.8 feet
For the time:
If 1 week = 7 days
7.5weeks = (7.5 * 7)
7.5weeks = 52.5 days
Speed In ft/day = 311,679.8 feet/ 52.5 days
Speed in ft/day = 5,936.76 feet/day
Hence the speed in feet per day is 5,936.76 feet/day
I'm not sure how to do this question
Answer:
£20.44
Step-by-step explanation:
Step 1: find the area of the total area of the garden.
Total area = l*w
Where,
l = 10 m
w = 6 m
Total area of garden = 10*6 = 60m²
Step 2: find the area of the vegetable patch.
Area of vegetable patch = l*w = 2*1.5 = 3m²
Step 3: find the area covered by pond.
Area covered by pond = πr²
Take π as 3.14
r = 2m
Area of pond = 3.14*2² = 12.56 m²
Step 4: find the area of the remainder of the garden to be reseeded.
Area of the remainder of the garden = total area of the garden - (area of the vegetable patch + area of pond)
= 60 - (3 + 12.56)
= 60 - 15.56
Area of the remainder of the garden = 44.44 m²
Step 5: calculate the total cost to reseed the garden.
Given that a bag of seed to cover 10m² is £4.60, total cost to reseed the remainder of the garden measuring 44.44 m² can be calculated bas follows:
10 m² = £4.60
44.44 m² = [tex] \frac{44.44*4.60}{10} = 20.44 [/tex]
The answer is £20.44
PLEASE HELP On the number line, graph the solution to the inequality -5(x+1) > 7x + 31? Can you tell me how to go about doing this problem I have tried a few methods but can't figure it out.
Answer:
I don't know how to insert a number line, but you have to put on it x<-3. You have to plot it, then put a open circle at -3, and draw an arrow, pointing it farther into the negitive side of the number line.
Step-by-step explanation:
In the first quadrant, you start at ( 6, 5 ) and move 3 units left .
What point will you end up on ?
Answer:
(3,5)
∧
this is x number
Step-by-step explanation:
the x number is left and right movement. if you move 3 units left you would subtract 3 from the x number. so 6-3=3 and you don't have to do anything on the y value because you don't move it.
Answer:
(3,5)
Step-by-step explanation:
When using graphs:
X-axis:
Move left-subtractMove right-addY-axis:
Move down-subtractMove up-addWhen writing points on a graph, it should be (X,Y)
So (6,5) all you have to do is subtract 3 from 6(6-3=3) so your final answer should be (3,5)
Hopefully this helps :)
a student guesses on every question of multiple choice quiz with 6 questions each with 3 possible answers. what is the probability that at least 5 of his answers are correct
Answer:
P[ x >= 5 ] = 0,005487
Step-by-step explanation:
The possibility of the student to answer correctly one question is 1/3
We have three answers and only one is right.
The possibility of answer at least 5 right question is:
Possibility of answer 6 question plus the possibility of answer 5 questions
The possibility of answering at least 5 answers are correct is:
To answer 2 questions 1/3*1/3 = 1/9
To answer three 1/3*1/3*1/3 = 1/ 27
To answer 5 is 1/3*1/3*1/3*1/3*1/3 = 1/243
And to answer all the question right is (6) is 1/729
Therefore probability of answer at least 5 right questions is
P[ x >= 5 ] = P [5] + P [6]
P[ x >= 5 ] = 1/ 243 + 1/729
P[ x >= 5 ] = 972/ 177147
P[ x >= 5 ] = 0,005487
You are attempting to make a scale drawing of your room. The actual size of your room is 12 feet
wide by 15 feet long. You will use the scale 1 in:1.5 ft. What will be the width and length of your
scale drawing in inches?
Answer:
width = 8 inches
length = 10 inches
Step-by-step explanation:
width= 12/1.5
= 8
length = 15/1.5
= 10
A bicycle manufacturing company makes a particular type of bike. Each child bike requires 4 hours to build and 4 hours to test. Each adult bike requires 6 hours to build and 4 hours to test. With the number of workers, the company is able to have up to 120 hours of building time and 100 hours of testing time for a week. If c represents child bikes and a represents adult bikes, determine which system of inequality best explains whether the company can build 20 child bikes and 6 adult bikes in the week. (2 points) No, because the bike order does not meet the restrictions of 4c + 6a ≤ 120 and 4c + 4a ≤ 100 No, because the bike order does not meet the restrictions of 4c + 4a ≤ 120 and 6c + 4a ≤ 100 Yes, because the bike order meets the restrictions of 4c + 4a ≤ 120 and 6c + 4a ≤ 100 Yes, because the bike order meets the restrictions of 4c + 6a ≤ 120 and 4c + 4a ≤ 100
A contractor is hired to build an apartment complex. Each 840-square-foot unit has a bedroom, kitchen, and bathroom. The bedroom will be the same size as the kitchen. The owner orders 980 square feet of tile to completely cover the floors of two kitchens and two bathrooms. Determine how many square feet of carpet is needed for each bedroom.
Answer:
350 sq ft
Step-by-step explanation:
Given that:
840 sq ft area has a bedroom, kitchen and bathroom.
Let the area of bedroom be [tex]x[/tex] sq ft.
Then the area of kitchen will also be [tex]x[/tex] sq ft.
Let the area of bathroom be [tex]y[/tex] sq ft.
As per question statement:
[tex]x+y+x=840\\\Rightarrow 2x+y=840 ...... (1)[/tex]
Tiles ordered to cover two kitchens and two bathrooms is 980 sq ft.
i.e.
[tex]2x+2y=980 ..... (2)[/tex]
Subtracting equation (1) from (2):
i.e. (2) - (1):
[tex]y = 140[/tex] sq ft
Putting the value of [tex]y[/tex] in (1):
[tex]2x+140=840\\\Rightarrow 2x =700\\\Rightarrow \bold{x=350\ sq\ ft}[/tex]
Therefore, the carpet needed for each bedroom = 350 sq ft
Which Answer Choice?
Answer:
Answer Choice A: -1.8
Step-by-step explanation:
That's the closest to a middle value between -3.8 and 0 on the number line of the answer choices given.
You and three friends are eating a pizza with 12 pieces. Each person eats the same number of pieces. Let x represent the number of pieces each person eats. Which of the following equations is an algebraic model for the situation?
a. 3x= 12
b. 1/3x=12x
c. 4x =12
d. 1/4x=12
Answer:
C. 4x = 12
Step-by-step explanation:
You and three friends= you + 3 friends=4 people
Pizza= 12 pieces
Each person eats equal pieces of pizza
x= number of pieces each person ate
Equation
4x=12
Divide both sides by 4
x=12/4
=3
x=3
Therefore, each person ate 3 pieces of pizza each
Check:
4x=12
4(3)=12
12=12
I RLY NEED HELP ASAP!!!!
Answer:
33°
Step-by-step explanation:
A right triangle is formed based on the information given.
Use trigonometric ratio formula to find the number of degrees of the angle indicated with "?".
Let the angle = x°
162.5 yds is opposite to x°
298 yds is the hypotenuse of the right triangle formed.
Therefore, [tex] sin(x) = \frac{opposite}{hypotenuse} [/tex]
[tex] sin(x) = \frac{162.5}{298} [/tex]
[tex] sin(x) = 0.5453 [/tex]
[tex] x = sin^{-1}(0.5453) [/tex]
[tex] x = 0.5453 [/tex]
[tex] x = 33.0 [/tex]
what is the value of 20+30(7+4)+5+2(7+99?
Answer:
the answer is 567
Step-by-step explanation:
20+30(11)+5+2(106)
20+330+5+212
= 567
A company is replacing cables with fiber optic lines in rectangular casing BCDE. If segment DE = 2.5 cm and segment BE = 3 cm, what is the smallest diameter of pipe that will fit the fiber optic line? Round your answer to the nearest hundredth. 3.54 cm 3.91 cm 4.24 cm 4.95 cm
Answer:
[tex]\Huge \boxed{\mathrm{3.91 \ cm}}[/tex]
Step-by-step explanation:
The triangle BDE is a right triangle.
Line segment DE = 2.5 cm
Line segment BE = 3 cm
We can apply Pythagorean theorem to solve for the diameter of the pipe or the hypotenuse of the right triangle BDE.
[tex]c=\sqrt{2.5^2 +3^2 }[/tex]
[tex]c=\sqrt{15.25} = 3.90512483795...[/tex]
We can round up the length to nearest hundredth.
[tex]3.90512483795 \approx 3.91[/tex]
The diameter of the pipe is 3.91 cm.
The smallest diameter of pipe that will fit the fiber optic line is 3.91 cm if the company is replacing cables with fiber optic lines in rectangular casing BCDE. If segment DE = 2.5 cm and segment BE = 3 cm option (B) is correct.
What is a rectangle?It is defined as the two-dimensional geometry in which the angle between the adjacent sides is 90 degrees. It is a type of quadrilateral.
We have:
A company is replacing cables with fiber optic lines in rectangular casing BCDE. If segment DE = 2.5 cm and segment BE = 3 cm.
As we know, the square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides is known as the Pythagoras theorem.
Applying Pythagoras theorem in the triangle DEB:
DE² + BE² = DB²
2.5² + 3² = DB²
DB² = 6.25 + 9
DB² = 15.25
DB = 3.905 ≈ 3.91 cm
Thus, the smallest diameter of pipe that will fit the fiber optic line is 3.91 cm if the company is replacing cables with fiber optic lines in rectangular casing BCDE. If segment DE = 2.5 cm and segment BE = 3 cm option (B) is correct.
Learn more about the rectangle here:
https://brainly.com/question/15019502
#SPJ5
please help me with this question!!
Answer:
C.
Step-by-step explanation:
Will end up being 0 since it is the final number in the equation and goes along with PEMDAS sequence.
Help pls explanation needed
Answer:
x = 1/2 thus Line 3 is false
Step-by-step explanation:
Solve for x:
10 - 2 x = 14 x + 2
Hint: | Move terms with x to the left hand side.
Subtract 14 x from both sides:
10 + (-2 x - 14 x) = (14 x - 14 x) + 2
Hint: | Combine like terms in -2 x - 14 x.
-2 x - 14 x = -16 x:
-16 x + 10 = (14 x - 14 x) + 2
Hint: | Look for the difference of two identical terms.
14 x - 14 x = 0:
10 - 16 x = 2
Hint: | Isolate terms with x to the left hand side.
Subtract 10 from both sides:
(10 - 10) - 16 x = 2 - 10
Hint: | Look for the difference of two identical terms.
10 - 10 = 0:
-16 x = 2 - 10
Hint: | Evaluate 2 - 10.
2 - 10 = -8:
-16 x = -8
Hint: | Divide both sides by a constant to simplify the equation.
Divide both sides of -16 x = -8 by -16:
(-16 x)/(-16) = (-8)/(-16)
Hint: | Any nonzero number divided by itself is one.
(-16)/(-16) = 1:
x = (-8)/(-16)
Hint: | Reduce (-8)/(-16) to lowest terms. Start by finding the GCD of -8 and -16.
The gcd of -8 and -16 is -8, so (-8)/(-16) = (-8×1)/(-8×2) = (-8)/(-8)×1/2 = 1/2:
Answer: x = 1/2
-x - 3y - 20 + 3x + 8y
Answer:
2x +5y -20
Step-by-step explanation:
-x - 3y - 20 + 3x + 8y
Combine like terms
-x+ 3x - 3y+ 8y - 20
2x +5y -20
Answer:
2x + 5y - 20
Step-by-step explanation:
-x + 3x = 2x
-3y + 8y = 5y
g(x)= 4x, Find g(x²)
Answer:
The answer is
[tex] {16}^{2} [/tex]
please help me on this
Answer:
its the third one. just multiply every number by 1.5 not that hard
Step-by-step explanation:
Please Geniuses, look at the picture and answer me, RESCUE ME.
Q1. if A:B= 6:5 and B:C= 18:6, then find A:C in its simplest term
A. 18:15
B. 15:18
C. 6:5
D. 5:6
Answer:
1. [tex] \{ \bold{ \sf{Expenditure \: on \: food = \:1200 dollars\: }}[/tex]
2. [tex] \sf{a \: : \: c \: = 18 \: : \: 5}[/tex]
Step-by-step explanation:
1. [tex] \sf{here \: total \: expenditure = 3000 \: dollars}[/tex]
[tex] \sf{expenditure \: on \: food \: = \: \frac{3000}{360} \times 144}[/tex]
[tex] \sf{expenditure \: on \: food{ = 1200 \: dollars}}[/tex]
Note : Whole circle represents the total expenditure.
i.e 360° represents $ 3000
1° represents $ [tex] \sf{ \frac{3000}{360} }[/tex]
144 ° represents $ [tex] \sf{ \frac{3000}{360} \times 144}[/tex]
-------------------------------------------------------------
2. [tex] \sf{here \: a:b \: = 6:5 \: = \: \frac{6}{5} }[/tex]
[tex] \sf{b : \: c \ \: = 18 \: : \: 6} \: = \: \frac{18}{6} [/tex]
[tex] \sf{now \: a:b \times b:c = \frac{a}{b} \times \frac{b}{c} = \frac{a}{c} }[/tex]
⇒[tex] \sf{a:c = \frac{6}{5} \times \frac{18}{6} }[/tex]
⇒[tex] \sf{a:c = \frac{18}{5} }[/tex]
⇒[tex] \sf{a:c = 18:5}[/tex]
Hope I helped!
Best regards!!
simplify -4xy+8yx-8yx
Answer:
=-4xy+8yx-8yx
=-4xy
Step-by-step explanation:
+×-=-
a number plus 12 is 36. write an equation and use equation to solve
Answer:
EQUATION IS GIVEN BELOW.
Step-by-step explanation:
let the number be 'x'
now,
x+12 =36
or, x=36-12
therefore,x=24
10. Three oil tankers together contain 37 litres of oil. If two tankers have 11 litres and
12 litres of oil. Find the oil in the third tanker.
Answer:
Step-by-step explanation:
total quantity of oil = 37 litres
quantity of oil in first tank = 11 litres
quantity of oil in second tank = 12 litres
Total quantity of oil in first and second tanks = 11 + 12 = 23 litres
∴ quantity of oil in the third tank = 37 - 23
= 14 litres
Hope this helps
plz mark as brainliest!!!!!!!!!!!
17. Factorise using factor theorem:
x^3-3x^2-4x+12
Answer:
(x - 3)(x - 2)(x + 2)
Step-by-step explanation:
Given
x³ - 3x² - 4x + 12 ( factor the first/second and third/fourth terms )
= x²(x - 3) - 4(x - 3) ← factor out (x - 3) from each term
= (x - 3)(x² - 4) ← x² - 4 is a difference of squares and factors in general as
a² - b² = (a - b)(a + b), thus
x² - 4
= x² - 2²
= (x - 2)(x + 2)
Thus
x³ - 3x² - 4x + 12 = (x - 3)(x - 2)(x + 2) ← in factored form
Answer:
(x - 2)(x - 3)(x + 2).
Step-by-step explanation:
The Factor Theorem states that if x - a is a factor of f(x) the f(a) = 0.
f(x) = x^3 - 3x^2 - 4x + 12
We try the factors of 12:
f(2) = 2^3 - 3*4 - 8 +12
= 8 - 12 - 8 + 12 = 0
- so (x - 2) is a factor of f(x)
Dividing:
x^2 - x - 6 <-----------Quotient
-----------------------------
x - 2 )x^3 - 3x^2 - 4x + 12
x^3 - 2x^2
-x^2 - 4x
-x^2 + 2x
-6x + 12
-6x + 12
So we factor x^2 - x - 6:
= (x - 3)(x + 2)