Answer:
To find the perimeter of a semi circle, use the formula P = 1/2 (π × d) + d, where d is the diameter of the semi circle.
Step-by-step explanation:
have a good day :)
A runner saved $25 when he purchased a pair of tennis shoes on sale. If the sale price was 35% off the regular price, what was the regular price of the tennis shoes?
Given:
Amount saved in sale = $25
Sale price was 35% off the regular price.
To find:
The regular price of the tennis shoes.
Solution:
Let the regular price of the tennis shoes be x.
Sale price was 35% off the regular price.
[tex]Discount=\dfrac{35}{100}x[/tex]
Amount saved in sale = $25
[tex]0.35x=25[/tex]
Divide both sides by 0.35.
[tex]x=\dfrac{25}{0.35}[/tex]
[tex]x=71.42857[/tex]
[tex]x\approx 71.43[/tex]
Therefore, the regular price of the tennis shoes is $71.43.
Elsie has two bags, each containing x counters. Write an expression for the total number of counters Elsie has.
Answer:
Y=2x
Step-by-step explanation:
A person places $7420 in an investment account earning an annual rate of 5.9%, compounded continuously. Using the formula V = Pe^{rt}V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 20 years.
Answer:
$24147.50Step-by-step explanation:
Step one:
given
principal=$7420
rate = 5.9%= 0.059
time = 20years
Step two:
Required
Final amount V
using the relation
[tex]V = Pe^{rt}[/tex]
Substituting we have
[tex]V = 7420e^{0.059*20}\\\\V=7420e^{1.18}\\\\V=7420*3.2543\\\\V=24147.456[/tex]
To the nearest cent
= $24147.50
The amount of money in the account after 20 years is $24147.50
How do I find the x in this special triangle?
Answer:
x=5
Step-by-step explanation:
a^2+b^2=c^2
a=4
b=3
c=x
4^2+3^3=x^2
16+9=x^2
25=x^2
5=x
Jackson’s mom is 44, which is four times as old as Jackson. Write an equation that can be used to find Jackson’s age. Then, solve the equation to find Jackson’s age. Show your work!
Answer: he is 11 years old
Step-by-step explanation: 44 divided by 4 = 11
Answer 44 divided by 4 (11)
PLS I NEED HELP ANSWER WILL GIVE BRAINLIEST ANSWER BOTH QUESTIONS ONE AND TWO
whats 9x8 greer I forgot
Answer:
72
Step-by-step explanation:
You can use the 9s trick
Answer:
9x8=72
Step-by-step explanation:
9x5=45 5
9x3=27 +3=9
27+45=72
Help me with this please
What is the value of x?
Enter your answer in the box
PLSS ANSWER FAST
Barnaby’s grandfather is always complaining that back when he was a teenager, he used to be able to buy his girlfriend dinner for only $1.50.
a.) If that same dinner that Barnaby’s grandfather purchased for $1.50 sixty years ago now costs $25.25 , and the price has increased exponentially, write an equation that will give you the costs at different times.
b.)How much would you expect the same dinner to cost in 60 years?
An equation that will give you the costs at different times is y = [tex]1.048^{t}[/tex].
The price of the dinner in 60 years will be $425.04.
What is the equation that represents the cost of the dinner?An exponential function is usually in the form: [tex]ab^{x}[/tex].
Where:
a = initial value b = rate of growth x = number of yearsRate of increase = (cost of the meal now / cost of the meal 60 years ago)^(1 / number of years)
(25.25 / $1.50) ^(1/60) = 4.8%
y = [tex]1.048^{t}[/tex].
What will be the cost of the meal in 60 years?25.25 x 1.048^60 = $425.04
To learn more about exponential functions, please check: https://brainly.com/question/26331578
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To complete step 3, which expression must fill in each blank space?
A.) cos(A)cos(B)
B.) cos(A)sin(B)
C.) Sin(A)cos(B)
D.) sin(A)sin(B)
Answer:
The answer is A cos(A)cos(B)
Step-by-step explanation:
I just took it
The expression which must fill in each blank space to complete step 3 is; Choice B; Cos(A)Cos(B).
Which expression must fill in each blank space?From the task content; It follows that the mathematical evaluation is in a bid to derive the Trigonometric identity for Tan (A-B).
From observation, it follows that the required expression is; cos(A)sin(B). This is because upon division of each term by the expression, the result is as in Step 4.
Read more on Trigonometric identities;
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!!PLEASE HELP!!
Will mark brainliest
Look at the picture^^
Answer:
u=UMMM this is your teacher you should not be asking for your answers online you got a zero
Step-by-step explanation:
Alan bought a desk on sale for $589. This price was 24% less than the original price. What was the original price?
Answer:
448$
Step-by-step explanation:
100-24/100×589$
76/100×$589
divide 76 by 100 and multiple with the price which is 589$
when 76 is divided=0.76
now we multiple 0.76times 589$
need help finding the slope line through each pair
Answer:
9) -25/21
11) 14
Step-by-step explanation:
In each case, subtract the y-coordinates. Subtract the x-coordinates in the same order. Divide the difference in y by the difference in x.
9)
y-coordinates: -10 - 15 = -25
x-coordinates = 6 - (-15) = 21
slope = (difference in y)/(difference in x) = -25/21
11)
y-coordinates: -20 - 8 = -28
x-coordinates = 3 - 5 = -2
slope = (difference in y)/(difference in x) = -28/(-2) = 14
Which expression can be used to find 25 percent of 88?
StartFraction 1 Over 25 EndFraction times 88
One-fourth times 88
StartFraction 1 Over 0.25 EndFraction times 88
StartFraction 1 Over 40 EndFraction times 88
Answer: 25/100* 88
Step-by-step explanation:
Answer:
88?
Step-by-step explanation:
find the slope of the graph given below
Answer:
[tex]-\frac{2}{3}[/tex]
Step-by-step explanation:
Determine the quotient of 2 over 5 divided by 3 over 4. (2 points)
PLS I NEED HELP FAST PLS
Answer:
8 over 15
Step-by-step explanation:
you should get a calculator.
Answer:
8/15
Step-by-step explanation:
A sailor is allowed 7 days off for every 30 days at sea. For 28 days off, how many days at sea must the sailor spend?
Answer:
120 days
Step-by-step explanation:
7 days off x 4 days off = 28 days off, so you have to multiply 30 x 4 which equals 120
17. On a map, 1 inch = 20 miles. If the road is 4.3 inches long on the map, how many miles is the actual road?
18. If you travel 450 miles on 15 gallons of gas, how many gallons will you need to travel 1530 miles?
19. Sam's ratio of blue marbles to black marbles is 3:5. How many blue marbles does Sam have if he has 45 black
marbles?
20. Mandi is carrying a 10 liter jug of sports drink that weighs 15 kg. She wants to know how many kilograms a 2-liter
jug of sports drinks would weigh.
Answer:
17. 86 miles
Step-by-step explanation:
how to divide 2432.5 by ten
Answer: 243.25.
Step-by-step explanation: To divide by ten is to move the decimal point one digit to the left. Thus, 2432.5/10 is 243.25.
h(n) = -2n² + 4; Find h(4)
A.-28
B.68
C.28
D.-4
Answer:
-28
Step-by-step explanation:
h(4)=-2(4)^2+4
-32+4=-28
The line passing through the points (-2, 10) and (5, -11)
y-intercept = (0, 4)
x-intercept = (3/4, 0)
Step-by-step explanation:1 - Find the slope
[tex]slope = m = \frac{rise}{run} = \frac{y_2~-~y_1}{x_2~-~x_1} = \frac {-11-10}{5-(-2)} = \frac {-21}{7} = -3[/tex]
2 - Plug the slope into y = mx + b and substitute a point into x and y to find the y-intercept, b, by isolating it.
y = mx + b
y = -3x + b
10 = (-3)(-2) + b
10 = 6 + b
-6 -6
4 = b
y-intercept = (0, 4)
3 - Rewrite the completed formula
y = -3x + 4
4 - Substitute 0 in for y to find the x-intercept
0 = -3x + 4
-4 - 4
-4 = -3x
-4/-3 = -3x/-3
4/3 = x
x-intercept = (4/3, 0)
hiiii please help if u can <3
Answer:
Step-by-step explanation:
given: triangle EDC is right angle isosceles triangle,AD and BC is perpendicular to AB.
statement reason
1. in triangle AED and BEC
a.∠ADE=∠EBC a.given( AD and BC is perpendicular to AB)
b.∠AED+∠DEC=∠EBD+∠ECB b. exterior angle of triangle is equal to two ∠AED =∠ECB opposite interior angle and substracting
(∠DEC=∠EBD=90°) from both side
c.ED=EC c corresponding sides of equal angle in
isosceles triangle are equal
2 ∴ triangle AED is congruent to BEC 2. by A.A.S axiom
please help me out and answer this i need it ASAP <3
Answer:
[tex]y-1=\frac{5}{6}\left(x+8\right)[/tex]
I hope this is good enough:
If A= 1, Be= 7, then ADD=?
Answer:
D or DD was not given any factor, but A was given which is 1, ADD= 1 multipltied by D
7. 30 minutes to jog 3 miles; 50 minutes to jog 5 miles
Answer:
What’s the question?
Step-by-step explanation:
fastttt 25 points Which frequency table should she use for the histogram?
Answer:B. Interval 56–63 63–70 70–77 77–84 84–91 91–98 Frequency 1 7 0 5 5 2
Because you want to really see the different kind of scores the person gets from the data.
Step-by-step explanation:
Which line is perpendicular to y=1/3+9
Answer: The perpendicular slope is [tex]-3[/tex]
Step-by-step explanation:
Find the perpendicular slope (the negative reciprocal of [tex]\frac{1}{3}[/tex]):
[tex]-3[/tex]
PLEASE PLEASE HELP!
The space shuttle travels at an orbital speed of 17,500 miles per hour. How many meters per minute is this?
Answer:
291.666666667
Step-by-step explanation:
one minute is 60 seconds
17500 divided by 60
291.666666667
An election campaign organizer bought 20,000 buttons to hand out for a candidate. The organizer handed out 14,000 of the buttons before receiving the next shipment of 15,500 buttons. On the day of the election, the organizer handed out another 18,250 buttons. How many buttons were left after the election?
Answer: 3,250
Step-by-step explanation:
