Answer:
38.5
Step-by-step explanation:
let x = the number
5+2x+3=85
2x=77
x=38.5
Which of these are polygons?
On
А
B
o
D
F
G
G
Answer:
B C and F
Step-by-step explanation:
Polygons are closed shaped with straight lines
D and E have curves therefore they cannot be classified as polygons
A is not closed therefore it A is not a polygon
B, C and F are closed and use only straight lines therefore those 3 are polygons
A tourist shop earns a 20% profit on all sale of flip-flops. If the total in flip-flop sales was $1,280. What is the profit?
Answer:
profit is 256 dollars
Step-by-step explanation:
20% of 1,280 is 256 dollars
please help!!!!!!!!!!
Answer:
y - 2 = 0
Step-by-step explanation:
find slope first:
(2-2)/(5+1) = 0/6 or 0
now use 'y=mx+b' to find the y-intercept (the 'b'):
2 = 0(5) + b
2 = b
so, in slope-intercept form, the equation is:
y = 2
but, in standard form, the equation is:
y - 2 = 0
a Cylindial water tank carries a volume of 150 lwhen it's tell full.The water tank has a base surface with a diameter of 140 cm. what is the height of the water tank.
Answer:
9.744180189 cm
Step-by-step explanation:
1 liter = 1 dm³ (cube with 10cm side lengths) =
= 10×10×10 cm³ = 1000 cm³
the volume of a cylinder is
base area × height
and the base area is a circle
area = pi×r²
r (radius) is half the diameter.
so, we know
volume = 150000 cm³
r = diameter/2 = 70 cm
so, we have
150000 = pi×r² × height = pi×70² × height =
= pi×4900 × height
1500 = pi×49 × height
height = 1500 / (pi×49) = 9.744180189... cm
Help! Please answer this! Giving all my points away! NO LINKS! Thank you!
Answer:
13
Step-by-step explanation:
200-187=13
Help help help help I have a lot of stuff to do and I need help
Answer:
2 5/8
Step-by-step explanation:
1 6/8 + 7/8 = 1 13/8 = 2 5/8.
Can someone please help, ty!!
Will mark brainliest!
Answer:
Distribute 4 to a and -5.
Step-by-step explanation:
Multiplication goes first.
Find the perimeter of the figure.
Answer:
=76.5 cm
Step-by-step explanation:
Add up the lengths of the outsides
P= 15.6+ 13.6+13.6+17.6+16.1
P =76.5 cm
A 32 inch computer monitor is shown what is the height of the screen in inches?
Answer:
16 inches
Step-by-step explanation:
32 divided by 2
Exhibit 11-3 The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounce. We are interested in testing to determine whether the variance of the population is significantly more than .003. The null hypothesis _____. a. should not be rejected b. should be rejected c. should be revised d. None of these answers are correct.
Answer:
a. should not be rejected
Step-by-step explanation:
H0 : σ² = 0.003
H1 : σ² > 0.003
We obtain the test statistic :
χ² = [(n - 1) * s²] ÷ σ²
s = sample standard deviation = 0.06
n = sample size = 26
σ² = 0.003
χ² = [(26 - 1) * 0.06²] ÷ 0.003
χ² = (25 * 0.06²) / 0.003
χ² = 30
Using the Pvalue from χ² calculator :
Pvalue = 0.2242
Using α = 0.05
Pvalue > α; we fail to reject the Null
arithmetic progression
Answer: ar·ith·met·ic pro·gres·sion
/ˌeriTHˌmedik prəˈɡreSH(ə)n/
noun
a sequence of numbers in which each differs from the preceding by a constant quantity (e.g., 3, 6, 9, 12, etc.; 9, 7, 5, 3, etc.).
the relationship between numbers in an arithmetic progression.
"the numbers are in arithmetic progression"
Step-by-step explanation:
An airplane ticket has an area of 119 square centimeters. Its perimeter is 48 centimeters. What are the dimensions of the ticket?
Answer:
17cm ×7cm
Step-by-step explanation:
Assuming that the airplane ticket is a rectangle,
let the length and the breadth of the ticket be L cm and B cm respectively.
LB= 119 -----(1)
2(L +B)= 48
L +B= 48 ÷2
L +B= 24 -----(2)
From (2):
L= 24 -B -----(3)
Substitute (3) into (1):
B(24 -B)= 119
24B -B²= 119 (expand)
B² -24B +119= 0
(B -17)(B -7)= 0 (factorise)
B -17= 0 or B -7= 0
B= 17 or B= 7
Substitute the values of B into (3):
L= 24 -17 or L= 24 -7
L= 7 or L= 17
∴ The dimensions of the airplane ticket is 17cm ×7cm.
PLEASE HELP WITH THE STEPS
The annual interest rate on a credit card is 15.30% cm. If a payment of
$300.00 is made each month, how many months will it take to pay off an
unpaid balance of $2,590.67? (Round to 1 decimal place)
Assume that no new purchases are made with the credit card.
The number of months is _______
Answer:
It will take 10 months to pay off the unpaid balance.
Step-by-step explanation:
Given that the annual interest rate on a credit card is 15.30%, if a payment of $ 300.00 is made each month, to determine how many months will it take to pay off an unpaid balance of $ 2,590.67, the following calculation must be performed:
(2,590.67 x 1.1530) / 300 = X
2,987.04 / 300 = X
9.95 = X
Therefore, it will take 10 months to pay off the unpaid balance.
3.
A train can travel 360 miles in 4 hours. How much time will it take
travelling 585 miles?
Answer:
6.5 hours
Step-by-step explanation:
We can write a ratio to solve
360 miles 585 miles
---------------- = ------------
4 hours x hours
Using cross products
360 * x = 4* 585
360 x = 2340
Divide each side by 360
x = 2340/360
x =6.5
for math the answer was
cylinder with a radius
of 5 units and a height
of 3 units
a cylinder with a radius
of 4 units and a height
of 4 units
a cylinder with a radius
of 3 units and a height
of 6 units
a cylinder with a radius
of 3 units and a height
of 5 units
Triangle ABC maps to triangle A′B′C′ by a 90∘ rotation counterclockwise about the origin.
If AB=61 units, BC=11 units, and AC=60 units, what is the length of A′C′?
60 units
11 units
90 units
61 units
Answer:
90
Step-by-step explanation:
Which function, g or h, is the inverse function for function f?
Answer:
first option
imagine the line y = x as a mirror
Answer:
The answer is A. "the function h because the graphs of ƒ and h are symmetrical about the line y = x"
Instead of using the values {1,2,3,4,5,6) on dice, suppose a pair of dice have the following: {1,2,2,3,3,4} on one die and {1,3,4,5,6,8} on the other. Find the probability of rolling a sum of 2 with these dice. Be sure to reduce.
Answer:
1/36
Step-by-step explanation:
you multiply 1/6 × 1/6
because the only way to get the sum of 2 is 1+1 and there is a 1/6th chance on both dice
Answer:
1/36
Step-by-step explanation:
got it right
Please help and Solve for x.
Answer:
[tex]tan70 = \frac{opp}{adj} \\ \: \: = \frac{15}{x } \\ \\ x = \frac{15 }{tan70 } \\ \\ = \frac{15}{2.747} \\ \\ = 5.46[/tex]
since 5.46 is equal to 5.5...
I think the answer is the first one
You are saving to buy a speed boat. Starting today, you will put $1,000 into an investment account. Each month thereafter, your contribution will be .1% (.001) higher than the month before, so that your contribution next month will be .1% higher than today, and so forth and so on. The investment account has a periodic monthly interest rate of .4% (.004). Ignore taxes. You will make contributions until 5 years from today.
At the end of five years, when you put in your last contribution, how much will you have saved?
Answer:
You will have saved $69,612 after five years.
Step-by-step explanation:
This can be calculated using the for formula for calculating the future value of a growing annuity as follows:
FV = C * (((1 + r)^n - (1 + g)^n) / (r - g)) ……………………………………… (1)
Where;
FW = future value or amount you will have saved after five years = ?
C = first deposit = $1,000
r = periodic monthly interest rate of = 0.4%, or 0.004
g = growth rate of contribution = 0.1%, or 0.001
n = number of months = 5 years * 12 = 60
Substituting all the values into equation (1), we have:
FV = $1,000 * (((1 + 0.004)^60 - (1 + 0.001)^60) / (0.004 - 0.001))
FV = $1,000 * 69.612001854052
FV = $69,612.00
Therefore, you will have saved $69,612 after five years.
Cho phương trình: x1 + x2 + x3 + x4 + x5 = 30 (*)
a. Tìm số nghiệm nguyên không âm của phương trình (*)
b. Tìm số nghiệm nguyên không âm của phương trình (*) thỏa: x2 ≤7 và x3 ≤12
Giúp mình với hihi
Answer:
Step-by-step explanation:
ngu dot
why 13/3hr and 4hr are equal?
Answer:
13/3 = 4 1/3 which when rounded is 4hrs
As 4.3/4 = 1.075 = 1 unit and not 2
Step-by-step explanation:
13/3 = 4.33333333 and rounded down = 4 hrs
Branly and 100 points
f (x) =x² - 3x - f
find the value of f(1) and f-(2)
f (1) = ______
and f (-2) = _____
Answer:
for every x in the domain of f, f -1[f(x)] = x, and
for every x in the domain of f -1, f[f -1(x)] = x
Step-by-step explanation:
f(1) and f(-2) means to replace x in the equation with the number inside the parenthesis and then solve.
f(1) = (1)^2 -3(1) -f = 1 -3 -f = -2-f
f(-2) = (-2)^2 -3(-2) -f = 4 + 6 - f = 10-f
FIND THE AREA I WILL MARK BRAINLIEST
Answer:
Hello! answer: 104
Step-by-step explanation:
(base × height)
13 × 8 = 104 therefore the area is 104 hope that helps!
Answer:
104
Step-by-step explanation:
8*13
The spoke of a wheel is 15 inches long. What if the area enclosed by the tire?
Answer:
225[tex]\pi[/tex]
or 706.86 rounded
Step-by-step explanation:
area of a circle is [tex]\pi r^{2}[/tex](r=radius)
[tex]\pi r^{2}[/tex]
[tex]\pi 15^{2}[/tex]
[tex]\pi 225[/tex]
=225[tex]\pi[/tex]
FIND THE VOLUME: please help meeee :)
Answer:
the volume for it is 5340.71
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
A company manufactures CD drives that have a 1.6% chance of experiencing disc-read errors. If a CD drive is tested for 250 read operations, the number of times it may fail is
Answer:
The answer is 4.
Step-by-step explanation:
Multiply 250 with 1.6%. 1.6% is also written as 0.016.
So pretty much you multiply 250 with 0.016 and you get 4.
Use a matrix to solve the system:
3x + 2y – z = 17
x - 2y - 4z = 5
2x + y + 2z = 5
Hello
Answer un excel file
[tex]\left[\begin{array}{ccc}3&2&-1\\1&-2&-4\\2&1&2\end{array}\right] *\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}17\\5\\5\\\end{array}\right][/tex]
Gaussian 's method
x=3
y=3
z=-2
Jessica bought a ticket to a football game for 17.50. The tax on the ticket was 1.44. She paid with a $50 bill. How much change did Jessica receive?
Answer:
31.06
Step-by-step explanation:
Ticket costs: 17.50+1.44=18.94
Change received: 50-18.94=31.06
Which of the following shows an element of the sample space for first
tossing a coin and then rolling a number cube?