Answer:
x=14
Step-by-step explanation:
b - 13=3
Help pls
Thanks
Find the lower quartile of the following numbers: 1, -2, 7, 9, 0, 10
Answer:
0
Step-by-step explanation:
The first step is to locate the median.
The median is the middle value of the numbers arranged in ascending order. If there is no exact middle value then it is the average of the numbers either side of the middle.
- 2, 0, 1, 7, 9, 10 ← ascending order
↑ middle
median = [tex]\frac{1+7}{2}[/tex] = [tex]\frac{8}{2}[/tex] = 4
The lower quartile Q₁ is the middle value of the numbers to the left of the median, that is
- 2, 0, 1
↑
lower quartile Q₁ = 0
plzz helpp guys
At the beginning of an environmental study, a forest covered an area of 1500 km . Since then, this area has decreased by 2.4% each year. Lett be the number of years since the start of the study. Let y be the area that the forest covers in km². Write an exponential function showing the relationship between y and t.
Answer:
[tex]y = 1500(0.024)^t[/tex]
Step-by-step explanation:
Given
[tex]a = 1500km[/tex] -- initial area
[tex]b = 2.4\%[/tex] -- rate
[tex]t = time[/tex] --- (years)
Required
Represent as an exponential function
An exponential function has the form:
[tex]y = ab^t[/tex]
Where
[tex]a = initial\ value[/tex]
[tex]b = rate[/tex] and [tex]b \ne 1[/tex]
[tex]t= time[/tex]
Substitute values for a and b, we have:
[tex]y = 1500 * (2.4\%)^t[/tex]
Convert percentage to decimal
[tex]y = 1500 * (0.024)^t[/tex]
[tex]y = 1500(0.024)^t[/tex]
Hence, the exponential function that represents the scenario is: [tex]y = 1500(0.024)^t[/tex]
Did I get this right? Please explain how I got it right if I did
Answer:
no 6 hours
Step-by-step explanation:
no it would be 6 hours
25% = 7.5 hours
5% = 1.5 hours
7.5 - 1.5 = 6 hours
. Caroline had 400 stamps in her collection. 1 10 th of them were Indian stamps, Onethird of the remaining stamps were from Europe and 100 stamps were from Africa. The rest were from the United States of America. How many American stamps were there?
Answer:
So 400 stamps
African---> 100
Indian------> 1/10 x 400
= 40
European---> 400-40=360
1/3 x 360
= 120
so 120+40+100= 260
400-260
= 140 stams from US
How much do you need to subtract from 31/6 to make
5?
Answer:
1/6
Step-by-step explanation:
since 31/6 is 5 1/6
Answer:
1/6
Step-by-step explanation:
let 'x' = number needed to subtract from 31/6 to equal 5
set up equation:
31 - x = 30
6 6
-x = -1/6
x = 1/6
(30/6 is the same as 5)
check:
31 - 1 = 30
6 6 6
30 = 30
6 6
(-3g) + (5g - 5) please help
Answer:
2g - 5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
TermsStep-by-step explanation:
Step 1: Define
(-3g) + (5g - 5)
Step 2: Simplify
Combine like terms: 2g - 5Can anyone help with this?
Answer: 1. Not a right triangle 2. Right Triangle 3. Right triangle 4. Right triangle 5. Not a right triangle
Step-by-step explanation:
the right triangle has to have a pattern to go by, so only evens or only odd sides.
plz help in 3 minuts
Answer:
2 11/24
Step-by-step explanation:
Answer:
2 11/24
Step-by-step explanation:
3/4 = 18/24
7/8 = 21/24
5/6 = 20/24
18 + 21 + 20 = 59
59/24
59 - 48 = 11
59/24 = 2 11/24
Find the perimeter of the figure.
Answer:
It's 54
Step-by-step explanation:
Jason went to the Hamburger Shack twice last week.
On the first trip, he bought 3 hamburgers and 4 orders
of French fries for $7.10.
On the second trip, he bought 2 hamburgers and one
order of French fries for $3.40.
What is the cost of a hamburger??
Answer:
Cost of 1 hamburger = $1.3
Step-by-step explanation:
Assume;
Cost of 1 hamburger = a
Cost of 1 French fries = b
On first trip
3a + 4b = 7.10......eq1
On second trip
2a + b = 3.40....eq2
From eq2 x 4
8a + 4b = 13.6....eq3
From eq3 - eq1
5a = 6.5
a = 1.3
Cost of 1 hamburger = $1.3
The cost of a hamburger and an order of French pies is $1.3 and $0.8 respectively.
let
cost of hamburger = x
cost of French pies = y
The equation:
3x + 4y = 7.10 (1)
3x + 4y = 7.10 (1)2x + y = 3.40 (2)
multiply (2) by 4
8x + 4y = 13.6 (3)
3x + 4y = 7.10 (1)
subtract (3) from (1)
8x - 3x = 13.6 - 7.10
5x = 6.5
x = 6.5 / 5
x = 1.3
substitute x = 1.3 into (2)
2x + y = 3.40 (2)
2(1.3) + y = 3.40
2.6 + y = 3.40
y = 3.40 - 2.6
y = 0.8
Therefore, cost of a hamburger and an order of French pies is $1.3 and $0.8 respectively.
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No Solutions
6x - 3x + 4 - 2x= _ + _
how to convert 2 5/8 to a decimal?
The decimal value of the number 2(5/8) will be 2.625.
What is a mixed fraction?A mixed fraction is one that is represented by both its quotient and remainder. A mixed fraction is, for instance, 2 1/3, where 2 is the quotient and 1 is the remainder.
Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Given mixed fraction is 2( 5/8). The fraction in the decimal form will be written as below:-
2( 5/8) = ( 21 / 8 )
2( 5/8) = 2.625
Therefore, the decimal value of the number 2(5/8) will be 2.625.
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Use the Rectangle to the right for Questions 1-4
Answer:
1. 34
2. 56
3. 112
4. 68
Step-by-step explanation:
For the first one, the angle measuring 112 is a vertical angle to angle 9 so angle 9 is also 112. So 180-112 (180 because the measure of every triangle is 180.) is 68. Then you divide 68 by 2 and get 34 because the angles 1 and 8 measure the same.
For the second one, you would first find the measure of angle 10 by subtracting 180-112 again and getting 68 (the measure of a flat line is 180.) Then you would get 112 for the remaining angles and divide that by two because once again, the two angles are the same measure. So 112 divided by 2 is 56.
For the third one, I already stated that the measure of angle 9 is 112.
And finally, for the fourth one, I also previously stated that the measure of angle 10 is 68.
Determine the nth term rule and find the 45th term for the arithmetic sequence with a10=1 and d-6
Answer: -209
Step-by-step explanation:
Formula for arithmetic progression
= a + (n - 1)d
Since a10 = 1 and d = -6
a10 = a + 9d
a + 9(-6) = 1
a - 54 = 1
a = 1 + 54
a = 55
Therefore, 45th term = a + (n - 1)d
= a + (45 - 1)d
= a + 44d
= 55 + 44(-6)
= 55 - 264
= -209
box is filled with six yellow cards six red cards and three blue cards a card is chosen at random from the bag what is the probability that the card is not read
Answer:
There is a 9/15 or 3/5
Step-by-step explanation:
There are a total of 15 cards, of those, 6 are red, so if you subtract 6 from 15, you get 9, which is the total amount of yellow and blue cards, which is what you were to not get a red card.
Not sure if it's right?? but I clicked yes
Answer:
yes you are right it is yes
Step-by-step explanation:
Which statement best describes the triangle formed by joining the points A(-3,6),B(-11,2),C(-4,-2)
Answer:
Isosceles triangle
Step-by-step explanation:
Length of side AB = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
= [tex]\sqrt{(-11+3)^2+(2-6)^2}[/tex]
= [tex]\sqrt{64+16}[/tex]
= [tex]\sqrt{80}[/tex]
= 4[tex]\sqrt{5}[/tex]
Length of BC = [tex]\sqrt{(-4+11)^2+(-2-2)^2}[/tex]
= [tex]\sqrt{49+16}[/tex]
= [tex]\sqrt{65}[/tex]
Length of AC = [tex]\sqrt{(-3+4)^2+(6+2)^2}[/tex]
= [tex]\sqrt{1+64}[/tex]
= [tex]\sqrt{65}[/tex]
Since, AC = BC, ΔABC will be an isosceles triangle.
3 mm
4 mm
What is the length of the hypotenuse?
C =
millimeters
0.4 of 1 minute.
Help please
Answer:
24 seconds
Step-by-step explanation:
Right answer gets brainlist
Answer:
B
Step-by-step explanation:
school games & Others Solve.
4.05 x 0.8 =
3,240
32.4
3.24
324
Answer:
3.24!
Step-by-step explanation:
Option c is correct, 4.05 multiplied by 0.8 is equal to 3.24.
To calculate 4.05 multiplied by 0.8, you multiply the two numbers together.
First, you can ignore the decimal points and multiply 405 by 8, which equals 3,240.
Next, you count the total number of decimal places in the original numbers.
The decimal point is present in both 4.05 and 0.8, so there are two decimal places in total.
To get the final result, you need to place the decimal point in the product so that it has two decimal places.
Starting from the right side of the product, you place the decimal point two places to the left, resulting in 3.24.
Therefore, 4.05 multiplied by 0.8 is equal to 3.24.
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Please help me.
Algebra.
Answer:
10x + 3y = 15
Step-by-step explanation:
You just want to get all the variables over to the left
Blank 1: 10
Blank 2: 3
Blank 3: 15
Answer:
blank one (2)
blank two(3)
blank three is (5)
Step-by-step explanation:
now can get I brainiest now
how many solutions does this system of equations have?
The expression 200 - 16t2 models the height in feet of an object that falls from the initial height of 200 feet t seconds after being dropped. Find the height of the object after 0.75 seconds. Make sure and include the units of feet in your answer for full credit. Round your answer to the nearest hundredth place.
Answer:
Concept: Modeling expressions
We are given the equation [tex]200 - 16 {t}^{2} [/tex]We want to find the time after 0.75 seconds given that t is represented in seconds.Hence we do [tex]200 - 16(0.75)^{2} [/tex]Hence we get the answer to 191 feetThe height of the object that falls after 0.75 seconds given that t is represented in seconds is 191 feet.
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
The expression 200 - 16t^2 models the height in feet of an object that falls from the initial height of 200 feet t seconds after being dropped.
We need to find the time after 0.75 seconds given that t is represented in seconds.
The expression is given
[tex]200 - 16t^2[/tex]
time t = 0.75
Substitute the value of t in the given expression
= 200 - 16(0.75)^2
= 200 - 9
= 191
Hence we get the answer to 191 feet.
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step by set
0000000000000000000000000000000011111111111111111111111111111111111111111111010101010000000000001010101000000011110101010101010101010111010010001
Answer:
2 2/3 or 8/3
Step-by-step explanation:
Step by step I am guessing? (Is that what each question is for?)
STEP 1
First we have to find 1/3 of 23:
23/3= 1/3 of 23
Then:
5/1 = 15/3
STEP 2
Subtract:
23-15= 8/3
8/3 or 2 2/3
plss help
7. (a) how many 3-digit positive numbers are there?
(b) how many 4-digit positive numbers are there?
Answer:
a) 900
b) 9,000
Step-by-step explanation:
Answer:
Step-by-step explanation:
A. a=100. an=999
an=a+n-1.d
Therefore answer will be 900.
B. 9000.
Please help!!
What is 2% of 180?
Answer: 3.6
Step-by-step explanation:
0.02*180=3.6 :)
Answer:
3.6
Step-by-step explanation:
Find the product of the percentage and the value:
180 · 0.02 = 3.6
Therefore, 2% of 180 is 3.6.
Please answer this question
Answer:
I think Printer A.
Step-by-step explanation:
the slope of the line is 8. Write the point-slope equation for the line using the coordinates of the labeled point.
Answer:
yes
Step-by-step explanation:
