Answer:
bro i'm literally doing math homework right now and i don't know ANYTHING about it. so dude i def cant help u i'm sorry :')
Step-by-step explanation:
The angle measures of a triangle are 2y+3 degrees 9y-7 and 7y+4 degrees what is the value of y
Answer:
2y+3+9y-7+7y+4=180
2y+9y+7y=180(+7-7)
18y=180
y=180/18
y=10
then
2y+3
2×10+3
20+3
23
9y-7
9×10-7
83
7y+4
7×10+4
74
Find the slope of the line graphed below.
Answer:
3/2
Step-by-step explanation:
rise over run--->3 up and 2 right, 3/2 is the slope
A new car is purchased for $18,000. Every year after the new car is purchased, it loses 1/3 of its value. Is this an example of exponential growth or exponential decay? Explain your answer based on what you have learned about exponential growth and exponential decay.
no joke answers pls.
reply if you know the answer.
Answer: Exponential Growth
Step-by-step explanation:
Since this car is being divided, it will only increase it's value, hope this helps, Merry Christmas and have a nice day.
18 000 / (1/3) =
54000
Write in standard form (-4b^3+b-1)+(6b-6)
Answer:
-4b3 + 7b - 7 (the three is supposed to be in the upper side of the b but i cant do it on a keyboard)
Step-by-step explanation:
can you help me? i don’t understand
angle1 + angle2 = 180
[tex]4x + 20 + x + 20 = 180[/tex]
[tex]5x + 40 = 180[/tex]
[tex]5x = 180 - 40[/tex]
[tex]5x = 140[/tex]
[tex]x = \frac{140}{5} [/tex]
[tex]x = 28[/tex]
Explain why the margin of error determines the accuracy with which a sample mean estimates a population mean.
Answer:
The answer is below
Step-by-step explanation:
Given that Margin of error is a term applicable in statistics that describe the extent of error calculated from a random sampling analysis or research.
It, therefore, determines the accuracy with which a sample mean estimates a population mean with a predefined degree of confidence, the population means is within the margin of error of the sample mean.
This implies that a higher margin of error than the specified degree of confidence will equate that the results of such a survey are not reliable.
Rick is taking a 1-mile ride on his bicycle. For each rotation of his tire, he travels 72 inches. How many rotations will his tire make during the 1-mile trip?
O 73 rotations
O 83 rotations
O 780 rotations
O 880 rotations
SHOW YOUR WORK!!!
Answer:
880 rotations or D
Step-by-step explanation:
72 inches = 72 / 12 = 6 feet
1 mile = 5280 feet
1 rotation covers 6 feet
x rotations covers 5280 feet
1/x = 6/5280 Cross multiply
6x = 5280 * 1 Divide by 6
x = 5280 /6
x = 880
D
A radioactive element has a half-life of 400 years. How much of 100 grams would remain after 40 years?
Answer: here are all the answers
Answer:
What....
Step-by-step explanation:
Which statement is not true about the pattern shown 2/3 , 4/6, 8/12, 16/24 , ...
One base of a trapezoid is 8 cm longer than the other. The height of the trapezoid is 2 cm longer than the shortest base. If the area is 48 cm2, what are the height and bases?
A. The height is 6 cm, and the bases are 4 cm and 12 cm.
B. The height is 12 cm, and the bases are 10 cm and 18 cm.
C. The height is 4 cm, and the bases are 2 cm and 10 cm.
D. The height is 10 cm, and the bases are 8 cm and 16 cm.
Answer:
B
Step-by-step explanation:
Let's call the shortest side a. The longest base, b, is 8cm longer than a. The height, h, is 2cm longer than a.
b = a + 8
h = a + 2
A = (a + b)h/2
48 = (a + (a+8))(a+2)/2
= (2a+8)(a+2)/2
= (2a^2+12a+16)/2
48 = a^2+6a+8
a^2+6a-40=0
Now, we factor this:
(a + 4)(a - 10)=0
a = -4, 10
a (length) cannot be a negative no. so the only possible answer is a = 10.
b = 10 + 8 = 18
h = 10 + 2 = 12
The answer is B
Hope this helps!
2 balloons and 3 cakes cost $26.
4 balloons and 4 cakes cost $40.
What's the cost of 1 balloon?
What's the cost of 1 cake?
Answer:
The cost of one balloon is 4 dollars
the cost of one cake is 6 dollars
Step-by-step explanation:
The way I did it was by substituting different numbers and seeing if they equaled forty or 26.
my thought process:
1 balloon= 5
1 cake= 10
that doesnt work for 2 balloons and 3 cakes
1 balloon=5
1 cake=5
that works for 4 balloons and 4 cakes but not 2 balloons and 3 cakes
1 balloon=4
1 cake=7
I'm sorry I'm way too tired to finish this 0-0 anyways yeah that's the correct answer :)
3/5 + 1/6 as a fraction
Answer:
23/30
Step-by-step explanation:
3/5 + 1/6 ---> find common denominator
common denominator= 30
6(3)/30 + 5(1)/30
18/30 + 5/30
(18+5)/30
23/30
The addition of 3/5 and 1/6 expressed as a fraction is; 23/30.
According to the question;
We are required to express 3/5 + 1/6 as a fractionFirst, we must determine a common multiple of the denominators; 5 and 6.
In this case, the common multiple is; 30.
[tex]( \frac{3}{5} ) + ( \frac{1}{6} ) = ( \frac{(18 + 5)}{30} )[/tex]
The result of the addition is therefore; 23/30.
Read more:
https://brainly.com/question/17544795
PLEASE HURRY
Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the rest are dated after 2000. How many pennies in Russell’s collection are dated after 2000?
1) Twice a number decreased by four is 32.
What is the number?
Equation:
Ans. 6
I
Step by step please because I don’t understand it
Answer:
x = 18
Step-by-step explanation:
Twice a number becomes 2x, decreased by 4 becomes -4, and combined those terms equal 32.
2x - 4 = 32
2x - 4 + 4 = 32 + 4 (isolate the variable)
2x = 36
x = 18
PLEASE I NEED HELP SHOW WORK ASAP
Answer:
d
Step-by-step explanation:
Answer: d
Step-by-step explanation:
Imagine being in 8th grade
What do we mean when we say that the k-coloring algorithm discussed in the lectures is "almost" constant-time?
Answer:
What is meant by K-coloring algorithm to be "almost" constant-time: is that the pattern through which K-coloring algorithm is applied when coloring a graph is "almost" the same every time the algorithm is applied on any graph
Step-by-step explanation:
What is meant by K-coloring algorithm to be "almost" constant-time: is that the pattern through which K-coloring algorithm is applied when coloring a graph is "almost" the same every time the algorithm is applied on any graph. this is because in the use of K-coloring algorithm no adjacent vertices are colored with the same color and if that happens the lowest numbered color that has not been colored will be applied i.e. a new color.
The aim of the K-coloring algorithm is to color a graph with the least possible amount of different colors while ensuring that adjacent vertices don't get the same color
George went to visit his family in California. While there, he bought a book for $24.00. The city where he bought the book had an 8% sales tax. Find the amount he paid in sales tax on the book.
net amount $24.00 tax at 8% 1.92 gross amount including tax $25.92
8w < 32 can u guys please help me
Answer:
w<4
Step-by-step explanation:
divide both sides by 8. no need to flip the sign because 8 is positive
8/8w<32/8
w<4
Answer:
w>4
Step-by-step explanation:
8w<32
8w/8=w
What you do to one side, do to the other.
32/8=4
w<4
Flip the sign because we divided.
w>4 is your answer
Why are these triangles similar?
2 points
Jadewants to spend less than $22 on a board game. How much does the
game cost if the game is $25 and is on sale for 15% off?
John made $172 last weekend. He worked 11 hours. How much money does John make each hour? *
Answer:
15.63
Step-by-step explanation:
172/11
15.636363...
The students at Roosevelt Middle School wear uniforms. They may choose to wear either a navy blue or
white shirt each day. Yesterday, 100 of the 150 eighth-grade students wore blue shirts. What was the ratio of
students wearing blue shirts to students wearing white shirts?
Answer:
the ratio would be 2:3 simplified
PLEASE HELP IM GOING TO FAIL!!!
Answer:
D.
Step-by-step explanation:
the slope is going up 1 over 2 and the 1 is the y....hope this helps.
Pls I need help like really bad like ASAP
Answer:
1/9
Step-by-step explanation:
Evaluate each expression
1.
3 – 4x
x = -3
Answer:
9
Step-by-step explanation:
what is 21 because what it is
Answer:
9 +10
Step-by-step explanation:
Predict the violent crime rate for a Southern state with an urbanization of 55.4 and a poverty rate of 13.7.
Answer:
The violent crime rate for this Southern state with an urbanization of 55.4 and a poverty rate of 13.7 is predicted to be:
7.6%.
Step-by-step explanation:
a) Data and Calculations:
Urbanization rate = 55.4%
Poverty rate = 13.7%
The predicted violent crime rate = urbanization rate * poverty rate
= 55.4% * 13.7%
= 7.5898%
= 7.6%
b) The prediction of violent crime rate follows some established researches that show that crime rates are higher in urban than rural areas. There is also a dynamic link between poverty, unemployment, and crime rate. Unemployment is usually high in more urbanized areas. As a result, unemployment increases poverty, and poverty reinforces the commission of crimes.
Evaluate the expression for the given value of the Variable
2x + 17 for x = 3
The expression equals
Answer:
23
Step-by-step explanation:
The yield of strawberry plants depends on the amount of fertilizer fed to the plants. Agricultural research shows that an acre of strawberry plants will yield 630 pounds of strawberries when 70 cubic feet of fertilizer are applied. If 100 cubic of feet of fertilizer are applied, the yield will be 900 pounds of strawberries. Use linear interpolation to estimate the yield if 73 cubic feet of fertilizer are applied.
Answer:
657 pounds
Step-by-step explanation:
Given
Represent the amount of fertilizer with x and the yield with y.
So, we have:
[tex](x_1,y_1) = (70,630)[/tex]
[tex](x_2,y_2) = (100,900)[/tex]
Required:
Determine the yield (y) when fertilizer (x) is 73ft^3
Using linear interpolation, we have:
[tex]y = y_1 + (x - x_1)\frac{(y_2 - y_1)}{(x_2 - x_1)}[/tex]
Substitute the x and y values using
[tex](x_1,y_1) = (70,630)[/tex] and [tex](x_2,y_2) = (100,900)[/tex];
We have:
[tex]y = y_1 + (x - x_1)\frac{(y_2 - y_1)}{(x_2 - x_1)}[/tex]
[tex]y = 630 + (x - 70)\frac{(900 - 630)}{(100 - 70)}[/tex]
[tex]y = 630 + (x - 70)\frac{270}{30}[/tex]
[tex]y = 630 + (x - 70)*9[/tex]
Open bracket
[tex]y = 630 + 9x - 630[/tex]
[tex]y = 9x - 630+630[/tex]
[tex]y = 9x[/tex]
To solve for y when x = 73.
We simply substitute 73 for x
[tex]y = 9x[/tex]
[tex]y = 9 * 73[/tex]
[tex]y = 657[/tex]
Hence, the yield for 73 cubic feet is 657 pounds
Determine the number of acute, obtuse, and right angles in the shape above
Answer:
2 acute, 1 obtuse, 1 right