Answer:
x=25
Step-by-step explanation:
4x-13=12-x
4x+x=12+13
5x=25
x=25
In the diagram below shows the cross section of a bridge with a semi circle hole. If the perimeter of the cross section is 24m. Calculate
B. Area of the cross section ( π =22/7)
Answer:
the area is 85.239 m²
Step-by-step explanation:
perimeter of a semi circle = ½πd
24 = ½ x 22/7 × d
24 x 7/11 = d
15.27 m = diameter...
area = ½πr²
= ½ × 22/7 x 7.365 x 7.365
= 85.239 m2
Please Help!! I will give 50 points and brainliest for the quick and correct answer
The question is attached below
Answer choices -
1.
A - exponential growth
B - exponential decay
2.
A - 0.98
B- 0.02
C - 1.02
3.
A - 1.02
B - 0.02
C - 0.98
4.
A - 11 and 12 years
B - 3 and 4 years
C - 9 and 10 years
D - 5 and 6 years
Answer:
1) A
2) A
3) C
4) D
Step-by-step explanation:
Exponential decay is for 1) because as the years pass, the depth decreases.
2) if it decreases by 2%, this means 100%-2%= 98%=0.98.
3) same as 2).
4) The equation for this situation can be represented with y=30(0.98)^x. when x is between 5 and 6, the depth of the lake is approximately 26.7 meters. So, it takes around 5 to 6 years for the depth of the lake to decrease to 26.7 meters.
Andre wrote the expression 15(x - 3) to represent the relationship shown in the table
Write two other expressions that represent the relationship shown in the table
x (0,3,5,8)
Value of expression (-45, 0, 30, 75)
Answer:
15x - 45 and -45 + 15x
Step-by-step explanation:
1. 15(x-3)
2. 15(3) = 45
3. 15x-45
4. -45 + 15x = 15x-45
5(3x - 9) and 3(5x - 15) are the other two expressions.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
15 (x - 3)
This can be written as:
1)
5 x 3 (x - 3)
5(3x - 9)
2)
3 (5x - 15)
Thus,
The other two expressions are:
5(3x - 9) and 3(5x - 15).
Learn more about expressions here:
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Some of the problems cities experienced as a result of rapid growth in the late 1800s included disease, crowded living spaces, and __________.
Answer:
poverty
Step-by-step explanation:
lack of workers makes no sense bcs the population was only increasing
limited recreational options don't make any sense either bcS that is not affected by population
and lack of transportation doesn't make any sense bcs it was the 1800's and people walked
Answer: B) Poverty
=====================================================
Explanation:
Unfortunately many people did not have much money to afford the basics such as a decent home and food to put on the table. Even if the person was working, they may be in a very dangerous job that provides little pay. An example could be a factory worker. So this is why choice B is the answer.
There were definitely plenty of able-bodied people, so there wasn't a shortage of workers. This allows us to rule out choice C. There also wasn't a lack of transportation since people either lived close and walked, or they had modes of transport such as rail or bike. Cars were starting to show up in the very late 1800s, but it wouldn't be until the early 1900s is when they became more commonplace. So we can rule out choice D.
Choice A can be ruled out since there were many recreation options such as going to the park or beach, or going to plays or classical music concerts, to name a few ways to have fun.
helppppppppppppppppp
are you using mathswatch?
Answer:
144
Step-by-step explanation:
use formula (n-2)(180), n is the number of sides (in this case it is 10)
(10-2)(180)
(8)(180)
1440
then divide by number of sides in polygon
1440/10 = 144
:)
Graph the line with this equation
Answer:
I hope this helps
Step-by-step explanation:
A right triangle has legs with lengths 61 cm and 60 cm. What is the length of the hypotenuse
Answer:
We gotta use Pythagorean theorem, fellas!
a^2 + b^2 = c^2
c^2 is the hypotenuse being squared.
a is a leg of a right triangle
b is another leg of a right triangle
------------------------------------------------------
we will use 61 for a
we will use 60 for b
a^2 + b^2 = c^2
61^2 + 60^2 = c^2
3721 + 3600 = c^2
7321 = c^2
[tex]\sqrt{7321}[/tex] = c (remember that c is hypotenuse)
c is rounded to 85.56 cm or 85.563 cm or 86 cm (depends on how the question wants the answer to look like)
ANSWER: 86 cm, 85.56 cm, or 85.563 cm
22.5 percent of what number is 18
Answer:
80
Step-by-step explanation:
Terry is throwing a surprise party. She has invited 31 people. She is buying party favors that come in packages of 5. How many packages does Terry need to order so that she has enough for each guest to have one?
Answer:
Terry needs to buy 7 packages
Step-by-step explanation:
Terry has invited 31 people, meaning she needs 31 party favors
If they come in groups of five, we have to find how many packages(of 5) equal 31. Because 5 does not evenly multiply into 31, (it fits evenly inti 30) we have to add an extra package, meaning she will need 7 packages because 7×5 is 35, which is enough for each guest
Helppppppppppppppppppppp
Answer:
3 bags
Step-by-step explanation:
Even though she will have extra she still will need 3 bags to get 12.
Answer:
3
Step-by-step explanation:
We know Ms.Smith is buying avocados and needs 12, we also are provided with the fact that she buys them in bags of 5.
If you take a look at the picture, we need to find a bag that fits 12 avocados in, this would be 3. As in 3 bags that contain 15 avocados in total, though excessive amount, this is the bag that she would need to benefit her the most.
You rented a bike to ride on the beach. The one-time fee was $12 and you were charged S5 per hour. It cost you a total of $27 to rent the bike. How many hours did you rent the bike?
Answer:
5 hours and 2 minutes?
Step-by-step explanation:
5,10,15,20,25 + the two=27
Answer: 3 hours
Step-by-step explanation: First you add the one time fee to the first hour. Which you get $17. Then you keep adding $5 until you get $27
What does the graph represent?
HELPPPP 16 POINTS
Answer:
the answer is that the graph represents something more than one
Step-by-step explanation:
Unfortunately, I do not have the question but the circle on the number represents that the answer cannot equal one but anything after one can be the answer.
So 1.0000000001 can be an answer but 1 cannot
the arrow pointed toward the right represents that the answer is continuous which means that any answer above one will be correct.
we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there
Answer:
20
Step-by-step explanation:
If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20
I hope this helps :0)
20 girls
Step-by-step explanation:
For every 9 boys there are 2 girls, so, if we have 90 boys, 9x10=90 and then since we have the 10 we use it to do 2x10 to get 20 girls
-p^3+2p^2-p polynomial
Answer:
Not a polynomial
Step-by-step explanation:
A polynomial is a combination of terms separated by
+
or
−
signs. A polynomial does not contain variables raised to negative or fractional exponents, variables in the denominator or under a radical, or any special features such as trigonometric functions, or logarithms.
Lydia bought 2 ½ gallons of paint and used 1 ½ gallons of paint. What fraction of the paint did she use?
The quantity of the paint used will be 3/5 for the paint.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that Lydia bought 2 ½ gallons of paint and used 1 ½ gallons of paint.
The fraction will be calculated as below,
2 ½ gallons can be expressed as 5/2
1 ½ gallons is the same as 3/2 the fraction used is the amount used over the total amount.
Fraction = 3 / 2 ÷ 5 / 2
Fraction = 3 / 5
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Diagonal of a rectangle Pythagorean theorem
Answer:
a squared + b squared = c squared
find the base, that's a, find the other side, that's b
a*a+b*b=c*c
(HELP ITS A EZ MULTIPLE CHOICE ILL GIVE BRAINLY!!)
Answer:
NO. 2
Step-by-step explanation:
Because the y-intercept is 24 and I tried pluging in a point and it works.
heyy could you help me out with this question I have been stuck in this question??
Answer:
Choice A.
Step-by-step explanation:
tan < ABC = 60/40
So m < ABC = 56.31 degrees.
This makes m < DBC = 56.31 / 2 = 28.15 degrees
tan 28.15 = DC / 40
DC = 40 tan 28.15
= 21.407 ft.
$12,000 deposit, simple interest at 8.5% for 5 years.
Answer:
$ 5100
Step-by-step explanation:
I= ?
p=$12000
r=8.5*1 /100=8.5/100
t=5yrs
I=P*R*T
= 12000*8.5*5 /100
=$ 5100
Steven brings 4 pounds of macaroni and cheese to a potluck dinner there are a total of 15 people attending the dinner if the macaroni and cheese a share evenly how much does each guest receive
Answer:
0.6
Step-by-step explanation:
On Saturday 1164 people saw movie at the up city theater on Sunday 1576 people saw the same movie there were a total of four movie screens with the same number of people in the audience about how many more people watched each screen on Sunday
Answer:
the number of more people watched each screen on sunday is 103
Step-by-step explanation:
The computation of the number of more people watched each screen on sunday is shown below:
= Sunday - saturday
= (1576 ÷ 4) - (1164 ÷ 4)
= 394 - 291
= 103 more people
hence, the number of more people watched each screen on sunday is 103
please help :) -2 3/4 - 6 5/9
Answer:
= -9 11/36
Step-by-step explanation:
-2 3/4 - 6 5/9
= -2 27/36 - 6 20/36
= -8 47/36
= -9 11/36
Can someone please help me
A vial holds 2 milliliters of pixie dust. How many vials can we fill with 13 milliliters of pixie dust?
Answer: 6 and a half
Step-by-step explanation: 13 is an uneven number so you divide 13 by 2 and get 6.5
Northside Middle School spent $1187.50 on
95 math books. How much did each book
cost?
Answer:
Each book cost $12.50 dollars.
Step-by-step explanation:
1,187.50 / 95 = 12.50
Find the missing length of the triangle.
4 yd
12; yd
2
yd
Answer:
Missing length = [tex]11\frac{2}{3}[/tex]
Step-by-step explanation:
By Pythagoras theorem,
Square of the longest length = Sum of square of smaller lengths of the triangle
[tex](\frac{37}{3})^2=a^2+4^2[/tex]
a² = 152.11 - 16
a² = 136.11
a = √136.11
a = 11.67 Or [tex]11\frac{2}{3}[/tex]
Therefore, missing length of the given triangle will measure [tex]11\frac{2}{3}[/tex] yd.
Glenda runs 5 miles in 40 minutes. If she continues at the same rate, can she run 14 miles in 120 minutes? Yes? No? Why?
Answer:
yes
Step-by-step explanation:
40 divided by 5 equals 8 and 120 divided by 14 equals 8.5. they are in the same number range.
Find the total area of the figure. It is _______ square inches.
Answer:
1100 square inches
Step-by-step explanation:
Formula: LxW
Smallest rectangles area: 5*20=100= 1 rectangle
there are 2 smal rectangles so= 100*2=200
Medium rectangles area: 5*30=150
There are 2 so= 150*2= 300
Biggest rectangle: 30*20= 600
Total Area: 200+300+600= 1100 square inches
Someone help please ASAP
Answer:
a
Step-by-step explanation:
Answer:
Step-by-step explanation:
c because the probability of it being correct is around 43.76 and its better to take c than any other answer as the state of matter is plasma and it is green so the pubonic plauge is the one true answer
Find the area of the triangle below. Be sure to include the correct unit in your answer. 13 yd 9yd 4yd
Answer:
54.84 yd^2
Step-by-step explanation:
1/2BH
1/2(13)(8 7/16) = 54.84
Answer:
18.
Step-by-step explanation:
4yd is on the bottom.
9yd is on the left.
13yd is on the right.
The area for a triangle is [tex]\frac{1}{2} * b * h.[/tex] We add the numbers into the formula.
[tex]\frac{1}{2} *4*9 = 18.[/tex]
We do not use 13, because it is only going from one corner to the opposite corner. So, the answer is 18.
Hope this helped!