Answer:
-100
Step-by-step explanation:
(-13-8)2^2
-25*4=-100
A group of biologists is surveying the mice population in a forest. The equation gives the total number of mice, n, t years since the survey began. Explain what the numbers 75 and 3 mean in this situation.
PLEASE HELP DUE SOON
Answer:
75 is the mice per year and 3 is the number of years
Step-by-step explanation:
Answer:
Step-by-step explanation:
I agree
PLEASEEEEE HELP ASAPPPPPP
the bearing of a plane from the airport is 65.
Calculate the bearing of the airport from the plane
Answer:
The bearing of the airport from the plane is 245°
Step-by-step explanation:
The bearing of a point from a location is given by the angle in degrees of rotation from the Northern direction of the location to the direction of the location of the point
The given bearing of the plane from the airport = 65°
Therefore, the direction of the plane from the Northern direction of the airport = 65°
From the Northern direction of the plane, the bearing of the airport = 245°
Given triangle PRS is congruent to triangle CFH, find the values of x, y, and z.
Answer:
x = 23
y = 7
z = 11
Step-by-step explanation:
Since ∆PRS ≅ ∆CFH, therefore,
m<R = m<F
13y - 1 = 90° (substitution)
Add 1 to both sides
13y - 1 + 1 = 90 + 1
13y = 91
Divide both sides by 13
13y/13 = 91/13
y = 7
Since ∆PRS ≅ ∆CFH, therefore,
PS = CH
2x - 7 = 39 (substitution)
Add 7 to both sides
2x - 7 + 7 = 39 + 7
2x = 46
Divide both sides by 2
2x/2 = 46/2
x = 23
Since ∆PRS ≅ ∆CFH, therefore,
m<S = m<H
Find m<S
m<S = 180 - (m<P + m<R) (sum of ∆)
m<S = 180 - (28 + (13y - 1)) (substitution)
Plug in the value of y
m<S = 180 - (28 + (13)(7) - 1))
m<S = 180 - (28 + 91 - 1)
m<S = 180 - 118
m<S = 62°
Therefore, since m<S = m<H,
62° = 6z - 4 (substitution)
Add 4 to both sides
62 + 4 = 6z - 4 + 4
66 = 6z
Divide both sides by 6
66/6 = 6z/6
11 = z
The values of x, y, and z are;
x = 23
x = 23y = 7
x = 23y = 7z = 11
We are told that triangle PRS is congruent to triangle CFH.
Since both triangles are congruent, by inspection we can see that;
m<R = m<F
m<F is a right angle = 90°. Thus;
13y - 1 = 90
13y = 90 + 1
13y = 91
y = 91/13
y = 7
Also by inspection;
PS = CH
2x - 7 = 39
2x = 39 + 7
2x = 46
x = 46/2
x = 23
Since m<R is 90°, then;
m<S = 180 - (90 + 28)
m<S = 62°
By inspection;
m<S = m<H
Thus;
6z - 4 = 62
6z = 66
z = 66/6
z = 11
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Best buy sells iPhones amd Samsung. Thy have 81 phones in the store. If the number of iphones is twice the number of Samsung's how many of each phone does the story carry?
Answer:
54 iphones ,27 samsungs
81/3=27
27x2=54
81-54=27
X+75.-125
I NEED THIS TO BE ANSWERED STEP BY STEP
Answer:
x = -200
Step-by-step explanation:
x + 75 = -125
Subtract 75 from both sides;
x = -200
If a rectangular prism has a base area of 14 square centimeters and a height of eight centimeters, what is the volume?
Answer:
The volume is 112 cm³
Step-by-step explanation:
I think it's 112 because to find the volume of a rectangular prism you must multiply the length* width* height and 14 the base( base =legth*width) multiplied by 8 equals 112 cm³
What is the answer for the problem?
Answer:
A: I assume that the equation 4x+2 has a greater rate of change.
B: The function F has a greater y intercept.
Step-by-step explanation:
Trend in the table is multiply the x by 3 then add 6.
Your equation would be y = 3x+6 for the table.
Uitute Start Video Share Content Participant original $14 markdown= 15% ole TOTAL original Mark down
I have 9000 grams of chocolate. I know that 1 pound is equal to 0.45 Kg. How many pounds of chocolate do I have?
Answer:
20
Step-by-step explanation:
Evaluate -0.4+0.35x when x=38.2
Answer:
12.97.
Step-by-step explanation:
That is -0.4 + 0.35*38.2
= -0.4 + 13.37
= 12.97.
George is 3 years older than the quotient of Joseph's age and 2. Letj represent joseph's age. Write an expression in the box
that would show George's age
Answer:
j/2+3
Step-by-step explanation:
Joseph's age is unknown, so we will use j. It says the quotient of Joseph's age (j) and 2, so it would be j/2, or j divided by 2.
Then it says that George is 3 years older, so that would be addition.
Therefore, it would be:
x/2+3
PLEASE HELP IM GIVING BRAINLIEST!
Answer:
-1/7
Step-by-step explanation:
Mark me as brainliest
Answer:
m = 1/7
Step-by-step explanation:
(0 - 1)/(-7 - 0)
-1/-7 = 1/7
How much would over budget would Jonah Mason be if he spends $650.75 for something that he had budgeted at $485? *
485.00
650.75
1,135.75
165.75
TIMEEEDDDD!!
Step-by-step explanation:
Subtract 485 and 650.75 and your answer is -165.75, so he is 165.75 dollars over budget.
Answer:
$165.75
Step-by-step explanation:
if ask for over budget so it's
$650-$485 = 165.75
does anyone know what -23= 13w+2w+22 is plz help!
Answer:
w = -3
Step-by-step explanation:
-23 = 13w + 2w + 22
Combine like terms (add 13w and 2w and subtract 22 from both sides)
-45 = 15w
Divide both sides by 15
w = -3
find the product of 123 x 48
Answer:
5904
Step-by-step explanation:
What is the domain of the function f(x) = 2/5√x ?
Answer:
[tex]x\geq 0\\[/tex]
Step-by-step explanation:
x+2y=17
8x+3y=45
answer fast
Answer fast? What?
x + 2y = 17...Equation A
8x + 3y = 45...Equation B
Solve A for x.
x = 17 - 2y
Plug this into B to solve for y.
8(17 - 2y) + 3y = 45
136 - 16y + 3y = 45
136 - 13y = 45
-13y = 45 - 136
-13y = -91
y = -91/-13
y = 91/13
y = 7
To find y, plug x = 7 into either equation to find x.
I will use Equation A.
x + 2y = 17
x + 2(7) = 17
x + 14 = 17
x = 17 - 14
x = 3
Answer: x = 3, y = 7
The solution to the system of equations is (x = 3) and (y = 7).
To find the values of x and y that satisfy the given system of equations:
1. (x + 2y = 17)
2. (8x + 3y = 45)
We can use either the substitution method or the elimination method. Let's use the elimination method to solve this system
Step 1: Multiply both sides of the first equation by 3 to make the coefficients of y in both equations the same:
(3x + 6y = 51)
Step 2: Now, subtract the modified first equation (3x + 6y = 51) from the second equation (8x + 3y = 45):
(8x + 3y) - (3x + 6y) = 45 - 51)
Simplify:
(8x + 3y - 3x - 6y = -6)
Step 3: Combine like terms:
(5x - 3y = -6)
Step 4: Now, we have two equations:
1. (x + 2y = 17)
2. (5x - 3y = -6)
Step 5: Now, you can either use the substitution method or the elimination method again to find the values of x and y. Let's use the elimination method again to eliminate y: Multiply the first equation by 3 and the second equation by 2 to make the coefficients of y the same:
1. (3(x + 2y) = 3 times 17) => (3x + 6y = 51)
2. (2(5x - 3y) = 2 times -6) => (10x - 6y = -12)
Step 6: Now, add the modified first equation (3x + 6y = 51) to the modified second equation (10x - 6y = -12): (3x + 6y + 10x - 6y = 51 - 12)
Simplify: (13x = 39)
Step 7: Divide both sides by 13 to solve for x:
(x = frac{39}{13})
(x = 3)
Step 8: Now that we have the value of x, we can find the value of y by substituting it back into either of the original equations. Let's use the first equation:
(x + 2y = 17)
(3 + 2y = 17)
Step 9: Solve for y:
(2y = 17 - 3)
(2y = 14)
(y = frac {14}{2})
(y = 7)
To know more about equations:
https://brainly.com/question/10724260
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What type of association is shown by the data in the scatter plot?
Answer Choices:
A. positive association
B. negative association
C. no association
D. trend association
=================================================
Explanation:
We can draw a straight line fairly close to all of the points. This line is known as the regression line, or line of best fit. Since this line has a negative slope, we consider the points to have negative association.
Put another way: as x goes up, y goes down, or vice versa. The two work opposite variables do opposite actions.
-----------------
Extra info:
Positive linear association would be when x and y go up together, or go down together. The variables go in the same direction together. The regression line would have positive slope.Points with no linear association would either be randomly scattered points, or perhaps another function type (eg: quadratic) would fit the points. The term "trend association" just seems to be something your teacher made up in order to possibly confuse students.PLS HELP 25 Points!! What number, rounded to the nearest hundred thousandth (five decimal places), is represented by e?
Enter your answer as a decimal, like this: 42.53647
Answer:
I'm not entirely sure but i think it's this:
2.71828
hope this helps
Step-by-step explanation:
Rewrite in Standard Form.
1. y = (x - 3)(x+10)
Answer:
Heres your answer y=x^2 +7x-30
Answer:
y=x^2 +7x-30
Step-by-step explanation:
Hope this helps
The equation y=1200(1/2)x represents the remaining amount of compound A, in grams, after x minutes. The table shows the remaining amount of compound B. Time (min) Grams of B 1 750 2 375 3 187.5 What is the positive difference in the initial amount of each compound? Enter your answer in the box
Answer:
300
Step-by-step explanation:
Trust me I took the test, Merry Christmas
Answer:
300
Step-by-step explanation:
HELP ME ASAP YOU WILL GET 10 POINTS
Answer:
Domain is... R
Range is... [-2, +unlimited)
PLSSS I NEED THIS QUICK AND WRITE IN SCIENTIFIC NOTATION
Answer:
i was born 2008
Step-by-step explanation:
HELP ME!!! I WILL MARK AS BRAINLY
Answer:
4
Step-by-step explanation:
We can see from the two marked points the coordinates are: (2, 8) and (4, 16)
That means the rise (vertical change) is 16 - 8 = 8 units. And the run (horizontal change) is (4 - 2) = 2 units.
Therefore slope = rise/run = 8/2 = 4.
A cyclist rode for 3.5 hours and completed a distance of 60.9 miles. If she kept the same average speed for each hour, how far did she ride in 1 hour? Part A Estimate the quotient. Include an equation to show your work. Explain your thinking.? Part B Find the exact distance she rode in 1 hour by completing the division. PLEASE HELP!
Answer:
She rode 17.4 miles in 1 hour
Step-by-step explanation:
A cyclist rode for 3.5 hours and completed a distance of 60.9 miles. If she kept the same average speed for each hour, how far did she ride in 1 hour?
Part A Estimate the quotient. Include an equation to show your work. Explain your thinking.?
The quotient is the average speed and this is calculated as:
Speed = Distance(miles)/Time(hours)
Where speed = quotient
Distance = Dividend
Time = Divisor
Speed = 60.9 miles/3.5 hours
= 17.4 miles/hour
Part B Find the exact distance she rode in 1 hour by completing the division. PLEASE HELP!
If :
3.5 hours = 60.9 miles
1 hour = x miles
Cross Multiply =
3.5x = 60.9 miles
x = 60.9/3.5
x = 17.4 miles
Hence, she rode 17.4 miles in 1 hour
Number 5) Whoever has the right answer ill give brainliest
WILL MARK BRAINLEST, HELP W/ MATH QUESTION !!!
Answer:
The average rate of change is 0
Step-by-step explanation:
You don't really have to do any math for this problem. The vertex lies at the center of [-2,11] so it means that the slope going across the interval line (x=1) is 0. (i used desmos to graph it)
check image if u wanna do the work
x^2 + 7x – 18 = 0
a
{–2, 9}
b
{–9, 2}
c
{2, 9}
d
{–2, –9}
Answer:
b)-9,2
Step-by-step explanation:
x^2+7x-18=0
x^2+9x-2x-18=0
x(x+9)-2(x+9)=0
(x+9)(x-2)=0
therefore
x=-9
x=2
What is f(x) =3x^2-7/4x^2-3 find f(2)
f=5/8x^2+-3/2
Divide both sides by two