Answer:
1. x=-3
2. m=4
3. -6=b
4. x=3
Step-by-step explanation:
1. 7(3-3x)=84 what is x
- Distribute the 7 using distributive property, which will give you 21-21x=84.
- Add 21 to both sides to aim to isolate the x variable, which will give you -23x=63.
- Divide both sides by the coefficient of x, -23, to finally get x by itself: x=-3
2. -7(-4-3m)=112 what is m
- Distribute the -7 using distributive property, which will give you 28+21m=112. Be wary of negatives.
- Subtract 28 to both sides, which will give you 21m=84.
- Divide both sides by 21 (the coefficient of m) to get m by itself: m=4
3.-182=7(2b-8)+7b what is b
- Distribute the 7 using distributive property, which will give you -182=14b-56+7b
- Add like terms to get -182=21b-56.
- Add both sides by 56, which will get you -126=21b.
- Divide both sides by the coefficient of b, 21, to get b by itself: -6=b
4. -101 = -5(8x-5) -6 what is x
- Distribute the -5 using distributive property, which will give you -101=-40x+25-6. Beware of negatives.
- Add like terms to get -101=-40x+19.
- Subtract both sides by 19 to get -120=-40x.
- Divide both sides by 40 (the coefficient of x) to get 3=x.
Hope this helps!
The angle \theta_1θ 1 theta, start subscript, 1, end subscript is located in Quadrant \text{I}Istart text, I, end text, and \cos(\theta_1)=\dfrac{10}{17}cos(θ 1 )= 17 10 cosine, left parenthesis, theta, start subscript, 1, end subscript, right parenthesis, equals, start fraction, 10, divided by, 17, end fraction . What is the value of \sin(\theta_1)sin(θ 1 )sin
Answer:
sin ( θ ) = 3√21 / 17
Step-by-step explanation:
Given:-
- The angle (θ) lies in the first quadrant. Where theta is defined as:
cos ( θ ) = 10 / 17
Find:-
- Find sin ( θ ) :
Solution:-
- We will draw a right angle triangle in the first quadrant. With base, B = 10 and hypotenuse H = 17. Since,
cos ( θ ) = B / H = 10 / 17
- Using pythagorean theorem determine the perpendicular side length:
H^2 - B^2 = P^2
17^2 - 10^2 = P^2
√189 = P
P = 3√21
- Now evaluate sin ( θ ):
sin ( θ ) = P / H
sin ( θ ) = 3√21 / 17
Answer:
√111 / 20
Step-by-step explanation:
Find the area of this parallelogram
i need blank 1 and blank 2
Answer:
Blank 1: 40
Blank 2: 10
Step-by-step explanation:
You can start by representing the speed of the water as x and the speed of the dolphin as y, and writing an equation.
y+x=50
y-x=30
Adding these two equations together, you get:
2y=80
y=40 for the speed of the dolphin in still water. Now, you an use one of the previous equations to find the speed of the current.
40-x=30
x=10
Hope this helps!
Round your answer to the nearest tenth of a degree
Answer:
x = 51.1 degrees
Step-by-step explanation:
We notice that we can use the sine formula.
Why?
Well because Sin x = (opposite side) / hypotenuse
sin x = 7/9
x = arcsin 7/9 = 51.05755 degrees
rounded to the nearest tenth.
x = 51.1 degrees
Find the missing dimension for the figure below*
How and why??
Please help due today..
Rectangle
Area = w × h
w = width
h = height
25ft × x=1125 ft²
=> x=1125 ft²/25 ft
x=45 ft
Answer:
x=1125÷25=45ft
Area=length × width therefore
length= area÷width
M varies inversely as the square of P. If M is 9 when P is 2, then find M when P is 3.
please h e l p
Answer:
Step-by-step explanation:
If two quantities are inversely proportional, it means that an increase in the value of one variable would cause a corresponding decrease in the other variable and vice versa.
Given that M varies inversely as the square of P, if we introduce a constant of proportionality, k, the expression becomes
M = k/P²
If M = 9 when P = 2, then
9 = k/2² = k/4
k = 9 × 4 = 36
Therefore, the inverse variation equation is
M = 36/P²
When P = 3,
M = 36/3² = 36/9
M = 4
Number 15 can anyone help me figure this out I have 15 points to give out if you give answer pls !!last question
Answer:
1438.52544
Step-by-step explanation:
For every 140 feet that Kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles? (1 mile = 5,280 feet) Round your answer to the nearest whole number.
Answer: The wheels turn about 3771 times in 5 miles.
Step-by-step explanation:
Given, Kelly rides on her bicycle such that the number of times wheels turn for every 140 feet = 20
Turns for every feet = [tex]\dfrac{20}{140}=\dfrac{1}{7}[/tex] ...(i)
To find : Number of times wheels turn in 5 miles.
Since , 1 mile = 5,280 feet
Then, 5 miles = 5 x (5,280 feet) = 26,400 feet
Now , Number of times the wheels turn in 26,400 feet = 26400 x (Turns for every feet)
[tex]26400\times\dfrac{1}{7}=3771.42857143\approx3771[/tex] [From (i)
Hence, the wheels turn about 3771 times in 5 miles.
what is 3.61 in radical form
What is the mode of the following numbers? 6 , 4 , 1 , 9 , 3 , 8 , 3 , 5 , 10
List the numbers from least to greatest:
1, 3, 3, 4, 5, 6, 8, 9, 10
Mode: ( most number repeated in the list)
Mode: 3
The mode of the numbers 6, 4, 1, 9, 3, 8, 3, 5, 10 is 3, as it is the number that appears most frequently in the set.
The question asks to find the mode of the following numbers: 6, 4, 1, 9, 3, 8, 3, 5, 10. The mode is a measure of central tendency that represents the most frequently occurring number in a set of values. To find the mode, we need to count how many times each number occurs in our set.
1 occurs 1 time3 occurs 2 times4 occurs 1 time5 occurs 1 time6 occurs 1 time8 occurs 1 time9 occurs 1 time10 occurs 1 timeSince the number 3 appears more frequently than any other number in the set, occurring twice, the mode of this set of numbers is 3.
A line passes through the point (-8, 8) and has a slope of 5/2.
Write an equation in point-slope form for this line.
Answer:
y=5/2x + 8
Step-by-step explanation: Y=mx+b is the equation for slope intercept form. Basically you just have to plug in the numbers.
cos72cos130+sin72sin130
Answer:
.5299192646
Step-by-step explanation:
Just plug it in a calculator
what does 4mnt-16mn-t+4 equal to
Answer:(t-4)(4mn-1)
Step-by-step explanation:
what is the input value other than 7 for which g(x)=4
Given:
It is given that the value of the graph when the input 7 is [tex]g(x)=4[/tex]
We need to determine the value of x when [tex]g(x)=4[/tex]
Value of x when [tex]g(x)=4[/tex]:
The value of x can be determined by using the graph.
From the graph, we need to determine the value of x when [tex]g(x)=4[/tex] other than the value x = 7.
This can be determined by finding the point at which the line meets the point y = 4, we can find the corresponding x - value.
Thus, from the graph, it is obvious that the graph also meets the point y = 4 when x = -8.
Therefore, the input value is x = -8 which makes [tex]g(x)=4[/tex]
Hence, the input value other than 7 for which [tex]g(x)=4[/tex] is x = -8.
The input value other than 7 for which g(x) = 4 is x = -8.
It is given that the value of the graph when the input 7 is g(x)=4
We need to determine the value of x when g(x)=4
Value of x when g(x)=4:
The value of x can be determined by using the graph.
This can be determined by finding the point at which the line meets the point y = 4, we can find the corresponding x - value.
From the graph, we get that the graph of g(x) passes through the point (x = -8, y = 4),
Thus, from the graph, it is obvious that the graph also meets the point y = 4 when x = -8.
Then indeed, the input value (x) other than 7 for which g(x) = 4 is x = -8.
As, the function g(x) takes the value of 4 at x = -8, according to the graph.
Therefore, the input value is x = -8 which makes g(x) = 4.
Hence, the input value other than 7 for which g(x) = 4 is x = -8.
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Can you help with this, I don't know how to do it
Answer:
105 sqrt(2) =x
Step-by-step explanation:
Since this is a right triangle we can use trig functions
so sin theta = opposite side/hypotenuse
sin 45 = x/210
Multiply each side by 210
210 sin 45 = x
We know sin 45 = sqrt(2)/2
210 * sqrt(2)/2 = x
105 sqrt(2) =x
Answer:
B
Step-by-step explanation:
Using trig ratios
sin(45) = opposite/hypotenuse
sin(45) = x/210
sqrt(2)/2 = x/210
x = 210sqrt(2)/2
x = 105sqrt(2)
simplify 3^5 x 3^4
A: 3^9
B: 6^9
C: 3 x 20
D: 3^20
Answer:
3^9
Step-by-step explanation:
when multiplying and the bases are the same number simply add the exponents ex: a^b x a^c = a^b+c
The following scenarious represent relations that can be graphed. for which of the graphs should the data values be continous ? explain why or why not.
a) The mass of a stack of coins as a function of the number of coins.
b) The temperature in Vancouver as a function of the time of day.
c) the mass of an animal as a function of its range.
d) the price of a carton of milk as a function of the size of the carton.
Answer:
I would say c
Step-by-step explanation:
If each necklace chain is 18 inches long, how many necklaces can be made from 137.16 centimeters of silver chain?
Answer:
3
Step-by-step explanation:
to convert the centimeters to inches, divide 137. 16 by 2.54
you should get 54
then divide by 18
you get three
You can make 3 necklaces from 137.16 centimeters of silver chain, given that each necklace is 18 inches long. We first converted the necklace length to centimeters, and then divided the total length of silver chain by the length of each necklace.
Explanation:To find out how many necklaces can be made from 137.16 centimeters of silver chain, we first need to convert the units because the length of the necklace chain is given in inches, while the total amount of silver chain is given in centimeters.
We know that 1 inch is equal to 2.54 centimeters. Therefore, if each necklace is 18 inches long, the length of each necklace in centimeters is 18 inches * 2.54 cm/inch = 45.72 cm.
Now, to find the number of necklaces that can be made, we divide the total length of silver chain by the length of each necklace. That is 137.16 cm / 45.72 cm/necklace = 3 necklaces (rounded down to the nearest whole necklace, because we cannot make a fraction of a necklace).
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2 What is the minimum amount of information you need in order to calculate the slope of a line?
Answer:
y=mx+b
Step-by-step explanation:
The formula to find the slope is y=mx+b
hope this helps
Answer:
you need to know what the pairs of numbers match to get a possible answer
Step-by-step explanation:
once u know that you can do the rest of the math and it depends how to multiply
Ed genuity
Triangle A B C is shown. Angle A C B is a right angle, angle C A B is 60 degrees, and angle A B C is 30 degrees. The length of the hypotenuse is 10. What are the lengths of the other two sides of the triangle? AC = 5 and BC = 5 AC = 5 and BC = 5 StartRoot 5 EndRoot AC = 5 StartRoot 3 EndRoot and BC = 5 AC = 5 and BC = 5 StartRoot 3 EndRoot
Hope This Helps! :)
Explanation:
The measure of the two sides of the triangle are 5√3 & 5 units respectively.
What are trigonometric functions?In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.
Given here: A triangle ABC with angle as C as a right angle and the hypotenuse is equal to 10
Let the perpendicular and the base of the triangle is p and b respectively.
Thus
Sin 60=p/10
p=10×√3/2
p=5√3
Also, Cos 60=b/10
b=10×1/2
b=5
Hence, The measure of the two sides of the triangle are 5√3 & 5 units respectively.
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Fill in the missing number to the equivalent ratio 9:15=45: _
Answer:
75
Step-by-step explanation:
9x5=45
15x5=75
Answer:
75
Step-by-step explanation:
9:15=45: _
very similar to cross multiplying
9/15 = (45/ something)
something = 45 / (9/15) = 45 * (15/9) = 5*15 = 75
Please help! Will give brainliest!
Answer:
The answer to your question is 365040000 lb or 3.65 x 10⁸ lb
Step-by-step explanation:
Data
Rectangular pyramid
base = 100 yd x 78 yd
height = 100 yd
weight of a stone = 468 lb/yd³
Process
1.- Calculate the volume of the pyramid
Volume = area of the base x height
-Substitution
Volume = 100 x 78 x 100
-Simplification
Volume = 780000 yd³
2.- Calculate the weight of the pyramid
468 lb ------------------------ 1 yd³
x ------------------------780000 yd³
x = (780000 x 468) / 1
x = 365040000 lb or 3.65 x 10⁸ lb
Jerry is using the floor plans
for his new home to help him
purchase base molding for
the place where the walls
meet the floor. The plans are
drawn using a scale of 14
inch represents 1 foot. He
measures the walls on the
floor plan with a ruler and
finds that they total 2372
inches. If molding costs
$2.10 per foot, how much
will Jerry spend on molding?
Jerry will spend $355.7988 on molding.
What is Scale Factor?A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size. It is used to find the missing length, area, or volume of an enlarged or reduced figure as well as to draw the enlarged or reduced shape of any given figure. It should be remembered that the scale factor only affects how big a figure is, not how it looks.
we have,
Scale: 1 foot = 14 inches
As, the measurement of walls is 2372 inches.
The, using Scale the wall measured
= 2372/14
= 169.428 foot
Now, the molding costs $2.10 per foot then the cost of 169.428 foot is
= 169.428 x 2.10
= $355.7988
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You invest $500 in an account that has an annual interest rate of 8%, compounded weekly for 12 years. What is the equivalent interest rate and how many times will the money be compounded? How much will you have?
Answer:
[tex]i_m=8.322\%\\\\624 \ compoundings\\\\A_{12}=\$1,304.88[/tex]
Step-by-step explanation:
#The equivalent interest rate per annum is equal to the effective interest rate.
-Given 8% compounded weekly( Take 1 yr=52 weeks) the effective interest rate is calculated as:
[tex]i_m=(1+i/m)^m-1\\\\\#where\\i=stated \ interest\ rate\\m=number \ of \ compoundings \ per \ year\\\\\therefore i_m=(1+0.08/52)^{52}-1\\\\=0.08322\approx 8.322\%[/tex]
Hence, the equivalent interest rate is 8.322%
-Assuming one year has 52 weeks, the number of compoundings will be :
[tex]=compoundings \ per \ year \times \ no \ of \ years\\\\=52\times 12\\\\=624\ compoundings[/tex]
-The investment amount after 12 years is calculated as:
[tex]A=P(1+i_m)^n, n=number \ of \ years\\\\=500(1.08322)^{12}\\\\=1304.88[/tex]
Hence, the amount after 12 years is $1304.88
Answer:
8% annual interest rate when compounded weekly =
(1 + .08/ 52)^52 = 1.00153846153846154^52 = 1.08322047419671 =
8.322047419671% equivalent interest rate
In 12 years this will be compounded 624 times
12 year Total = 500 * (1.08322047419671)^12 =
1,304.8852611583 =
1,304.89 (rounded)
A triangle has one angle that measures 31 degrees, one angle that measures 46 degrees, and one angle that measures 103 degrees. A.
equilateral triangle
B.
scalene triangle
C.
right triangle
D.
isosceles triangle
The amount of money nick spent on 12 cans of soda was $3. Write an equation relating the amount spent to the the number of cans purchased. Then find out how many cans you can buy for $28.50.
Answer:
12y=$3
114 cans
Step-by-step explanation:
Let the cost of every can be represented by y. Therefore, for 12 cans, the cost will be the product of y cans and 12 hence cost is 12y
Since the cost incurred is $3 then we can represent these as
12y=$3
To solve for y, we divide both sides by 12 hence
Y=$3/12=$0.25
To find the number of cans that one will get with a buget of $28.5, we divide the budget by the cost of a can. This will be $28.5/$0.25=114 cans
Jayden school is selling tickets to play on the first day of ticket sales to school sold six adult tickets and 12 child tickets for a total of $252 the school took 243 on the second day by selling 14 adult tickets and five child tickets what is the price of one adult ticket and one child ticket
Answer:
iihiuhihiuiu
Step-by-step explanation:
ioiiuouioiiouuioooooooooooooooooooooiuuguygy
An online shoe store is having a sale. The original price of each pair of shoes is p dollars. The store sells 15 pairs of shoes and earns a total of (15p−30) dollars.
The factored expression is 15(p - 2) . The discount per pair of shoe is $2
Using the expression given:
15p - 30Factorize :
The greatest common factor of 15 and 30 is 15
15(p - 2)Hence, the factored expression Using GCF is 15(p - 2)
b.)
The discount on the purchase is the constant value:
Total discount = 30Number of shoes = 15
Discount per pair = Total discount/ Number of shoe pairs
Discount per pair of shoes = 30/15 = $2
Therefore, the discount on each pair of shoes is $2
Complete Question:
An online shoe store is having a sale. The original price of each pair of shoes is p dollars. The store sells 15 pairs of shoes and earns a total of (15p−30) dollars. a. Factor the expression using the GCF.
15p−30=
b. The discount per pair of shoes is $
Prove that the following is a right – isosceles triangle.
Show work
Answer:
Proved down
Step-by-step explanation:
To prove that a triangle is isosceles use the distance formula to find the length of its side and check if there are two sides equal.
To prove that a triangle is right find the square of the longest side and then find the sum of the squares of the other two sides, if the two answers are equal, then the triangle is right (converse of Pythagoras Theorem).
The formula of the distance between two points is:
[tex]d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
∵ x = (-1 , 5) and y = (4 , 4)
∴ [tex]x_{1}[/tex] = -1 and [tex]x_{2}[/tex] = 4
∴ [tex]y_{1}[/tex] = 5 and [tex]y_{2}[/tex] = 4
- Substitute them in the formula of the distance to find xy
∵ [tex]xy=\sqrt{(4--1)^{2}+(4-5)^{2}}=\sqrt{25+1}[/tex]
∴ [tex]xy=\sqrt{26}[/tex]
∵ x = (-1 , 5) and z = (-2 , 0)
∴ [tex]x_{1}[/tex] = -1 and [tex]x_{2}[/tex] = -2
∴ [tex]y_{1}[/tex] = 5 and [tex]y_{2}[/tex] = 0
- Substitute them in the formula of the distance to find xz
∵ [tex]xz=\sqrt{(-2--1)^{2}+(0-5)^{2}}=\sqrt{1+25}[/tex]
∴ [tex]xz=\sqrt{26}[/tex]
∵ xy = xz
- The isosceles triangle has two equal sides
∴ Δ xyz is an isosceles triangle
∵ y = (4 , 4) and z = (-2 , 0)
∴ [tex]x_{1}[/tex] = 4 and [tex]x_{2}[/tex] = -2
∴ [tex]y_{1}[/tex] = 4 and [tex]y_{2}[/tex] = 0
- Substitute them in the formula of the distance to find yz
∵ [tex]yz=\sqrt{(-2-4)^{2}+(0-4)^{2}}=\sqrt{36+16}[/tex]
∴ [tex]yz=\sqrt{52}[/tex]
yz is the longest side lets find its square
∵ (yz)² = ([tex]\sqrt{52}[/tex] )²
∴ (yz)² = 52
- Lets find the sum of the squares of the other two sides
∵ (xy)² + (xz)² = ([tex]\sqrt{26}[/tex] )² + ([tex]\sqrt{26}[/tex] )²
∴ (xy)² + (xz)² = 26 + 26 = 52
∴ (yz)² = (xy)² + (xz)²
- That means the angle opposite to yz is a right angle
∴ Δ xyz is a right isosceles triangle
575,000,000
write the number in scientific notation
Answer:
in scientific notation the answer is 5.75x10^8
Answer: [tex]5.75[/tex] [tex]x[/tex] [tex]10^{8}[/tex]
Step-by-step explanation: To write a number in scientific notation, first write a decimal point in the number so that there is only one digit to the left of the decimal point.
So here, we have 5.75000000 and notice that there
is only one digit to the left of the decimal point.
Next, we count the number of places the decimal point would
need to move to get back to the original number, 575,000,000.
Since we would need to move the decimal point 8 places to the right,
we have an exponent of positive 8.
Now, scientific notation is always expressed as a number between 1 and 10 including 1 but not 10 and it is multiplied by 10 to a certain power that must be an integer.
So we have [tex]5.75000000[/tex] [tex]x[/tex] [tex]10^{8}[/tex].
Notice that the exponent is positive.
This is because we would need to move the decimal point to the right in order to get back to the original number.
So 575,000,000 can be written in scientific notation
as [tex]5.75000000[/tex] [tex]x[/tex] [tex]10^{8}[/tex] or just [tex]5.75[/tex] [tex]x[/tex] [tex]10^{8}[/tex].
Remember that we can drop zeroes at the end of a decimal.
So we have [tex]5.75[/tex] [tex]x[/tex] [tex]10^{8}[/tex].