Answer:
16
Step-by-step explanation:
-10 opposite is 10 which this \ or | means the its positive number. So 10 +6 is 16
as a town gets smaller the population of its high school decreases by 5% each year. The senior class has 160 students now. In how many years will it have about 100 students? Write an equation. Then solve the equation without graphing. Write an equation to represent the situation. Let n be the number of years before the class will have 100 students.
Answer:
T_n = 160(0.05)^(n - 1)
At T_n = 100, n = 1 year
Step-by-step explanation:
We will use geometric progression to solve this question.
Formula for nth term of a GP is;
T_n = ar^(n - 1)
We are told the population of its high school decreases by 5% each year.
This means r = 0.05
senior class has 160 students. Thus a = 160
Thus,T_n = 160(0.05)^(n - 1)
Where n is number of years after now.
We want to find the number of years before the class will have 100 students
Thus;
160(0.05)^(n - 1) = 100
(0.05)^(n - 1) = 100/160
(n-1)In 0.05 = In (100/160)
-2.9957(n - 1) = -0.47
(n - 1) = 0.47/2.9957
n = 1 + 0.1569
n = 1.1569
Approximating to the nearest whole number gives n = 1
Complete the equation of the line through (2,-2) and (4,1).
Use exact numbers.
Y=
Answer:
y=(3/2)x-5
Step-by-step explanation:
1=4k+b, -2=2k+b
b=1-4k, b=-2-2k
1-4k=-2-2k
k=3/2
1=4k+b
1=4(3/2)+b
b=-5
y=(3/2)x-5
Brillianst!!!!!!!please!!!!!!!
Answer:
y=(3/2)x-5
Step-by-step explanation:
Miguel wrote the equation 450 h = 4,095, where h is the number of hours it took a jet flying at a
constant speed of 450 miles per hour to travel 4,095 miles. Solve for h.
h= hour(s)
Answer:
9.1
Step-by-step explanation:
Divide by 450 on both sides to find h
choose the correct response
Answer:
74 hope this works if not I'm sorry
a) Find the value of 1 + 3x when x = 1
b) Find the value of 7 - 2x when x = -3
Which is equal to√4/5?
2√10/5
2√5/5
√20/5
√20/√25
Answer:2√5/5
Step-by-step explanation:
Multiply 2√5 by √5√5
Combine and simplify the denominator.
2√5divide5
The result can be shown in multiple forms.
Exact Form:
2√5/5
.
What is the area of the figure below?
Answer:
d.
Step-by-step explanation:
102 in.² should be the answer
Pls help
The circle below has a diameter of 164 inches.
a) Find the circumference of the circle. Use 3.14 to approximate pi. Please show your math work step by step and don’t forget the unit. (Calculator is allowed but please write down the numbers that you enter into your calculator).
b) Find the area of the circle. Use 3.14 to approximate pi. Please show your math work step by step and don’t forget the unit. (Calculator is allowed but please write down the numbers that you enter into your calculator).
Answer:
The circle is the radius divided by equal, so it is the same as the other section meaning 16 as well
Step-by-step explanation:
Add the two ends to the result 32
Answer:
Step-by-step explanation:
yea what she said
1.4 plus what equals 0.9
Answer: 2.3
Step-by-step explanation:
Calculator
Answer:
-0.5
if 1.4-0.9=0.5
1.4+(-0.5)=0.9
What is the slope of the line that contains the points (10,-9) and (7,6)?
Answer:
-5
Step-by-step explanation:
Slope, m, can be found by
change in y / change in x
change in y = 6 - -9 = 15
change in x = 7 - 10 = -3
m = 15/-3 = -5
full line is y = -5x + 41
Find the measure of the given angles
Hey there!
The answer is 58 degrees
Since ΔABC ~ ΔDEF, then m∠A ~ m∠D, and m∠B ~ m∠E, and m∠C ~ m∠F. This means we can set m∠A equal to m∠D:
x + 29 = 2x
Subtract x from both sides:
29 = x
Now, we plug into the angle expressions to find their measurement:
m∠A = 29 + 29
m∠A = 58
Since they are equal, m∠A and m∠D are both 58 degrees.
Have a terrificly amazing day! :)
El 35 % de los estudiantes de un centro docente practica el fútbol. El 70 % de los que practican el fútbol estudia Matemáticas, así como el 25 % de los que no practican el fútbol
Answer:
El 40.75% de los alumnos del centro docente estudian matemáticas.
Step-by-step explanation:
Dado que el 35 % de los estudiantes de un centro docente practica el fútbol, y el 70 % de los que practican el fútbol estudia Matemáticas, así como el 25 % de los que no practican el fútbol, para determinar los porcentajes de estudiantes de matemáticas en el centro docente se debe realizar el siguiente calculo, suponiendo que el total de alumnos del centro sea 100:
35 x 70 / 100 = 2,450 / 100 = 24.5%
100 - 35 = 65
65 x 25 / 100 = 1,625 / 100 = 16.25%
24.5 + 16.25 = 40.75
Así, el 40.75% de los alumnos del centro docente estudian matemáticas.
Write the equation of the line in fully simplified slope-intercept form.
Answer:
y=-1/2x-1
Step-by-step explanation:
Kiera ordered a set of brown and green pins. She received 63 brown pins and 27 green pins. What
percentage of the pins were brown?
Answer:
Step-by-step explanation:
27
A store manager earns
$
24.00
per hour. If the manager works
8
hours one day and donates
1
10
of the day’s earnings to charity, how much of the earnings are left?
Answer:
192
Step-by-step explanation:
on edge
Answer:
116.1
Step-by-step explanation:
What is the smaller zero of y = x2 - 6x + 8?
solve using quadratic equations (x+3)^2=25
Answer:
x=2 or x=−8
Step-by-step explanation:
PLEASE ANSWER ASAP!!!!Find
Find f(-2) if f(x) = x^2 + x + 7
Answer:
9
Step-by-step explanation:
what is the value of the missing side?
Answer:4 cm
Step-by-step explanation:
You would do 9cm - 5cm
Answer:
The answer is 4cm
Step-by-step explanation:
9-5=4
because the entire right side is 9 and the length until the missing portion is 5
a.
What does the graph tell you about the boat ride?
b. For the graph find the domain and range.
C.
For the function d (above), how is the slope of the graph to the left of the vertex related to
the slope of the graph to the right of the vertex?
The length of a rectangle can be represented by the expression (2 - 1) and the width can be
represented as (x + 3). The area of the rectangle is 12 square feet. Set up an equation that
could model this information, Solve the quadratic equation to determine a possible value for x,
PLS HELP ME AND IF YOU CAN SHOW HOW U GOT THE ANSWER IF NOT THATS OKAY!!! ILL ALSO MARK YOU BRANLIEST IF YOU HELPED ME!!! <333
Answer:
Step-by-step explanation:
The length is (x-1), not (2-1).
area = (x-1)(x+3) = 12 ft²
x²+2x-3 = 12
x²+2x-15 = 0
(x+5)(x-3) = 0
x = -5, 3
-5 is an extraneous solution, so x=3.
Length = x-1 = 2 feet
Width = x+3 = 6 feet
Please answer this I need help
Help please I will be so happy
60 as a product of its prime factors
a. 150km in 10 hours. How far will be travelled
in 7 hours?
Answer:
Your answer is 105km travelled in 7 hours.
Step-by-step explanation:
Divide 150km by 10 to find the amount of km travelled in 1 hour. Then multiply that answer by 7.
Which is the better buy: 3 shirts for $15 or 5 shirts for $20?
Step-by-step explanation:
it will
5 shirts for $20
hope it helps
D=u^2/2a
u=30.6 correct to 3 significant figures
a=5.2 correct to 2 significant figures
a) Calculate the upper bound for the value of D. Give your answer correct to 6 significant figures.
The lower bound for the value of D is 88.8860 correct to six significant figures.
b)
i) By considering bounds, write down the value of D to a suitable degree of accuracy.
ii) Give a reason to your answer
a)
30.65^2/(2*5.15)=91.2061
d=91.2061
b)i)90
ii) Mathswatch is critical of anything apart from it's system so I dont know what the answer is for this one
pls help i’ll love u forever
Solve |p+3|= 5. Graph the solution set.
Answer:
2
Step-by-step explanation:
|x+3| = 5
graph it on desmos
Use properties of operations to write an equivalent expression by combining like terms.
16 + 13p - 9p
Answer:
16+4p mark brainliest its correct
Step-by-step explanation:
Answer:
Subtract
9p from 13p.
16+4p
Step-by-step explanation: