Answer:
123.38
36+54+11.69+11.69
Make sure to round
Find the are of the blue shaded region.
XTRA POINTS!!!
Plus brainliest!!!
No links or anything i will report you!!!!!
PLZ!!!!
Answer:
25π
Step-by-step explanation:
i hope u hav a gud day ^_^
Answer:
area = 73.37 cm²
Step-by-step explanation:
area of circle:
A = π5² = 78.5 cm²
area of 80° segment:
(80/360)(78.5) = 17.44 cm²
area of isosceles triangle w/ 5 cm legs and 80° angle:
sin 40° = b/5
0.6428 = b/5
b = 3.214
base = 2(3.21) = 6.43 (we only figured for one-half of the base)
cos 40° = h/5
0.7660 = h/5
height = 3.83
A = 1/2(6.43)(3.83) = 12.31 cm²
area of unshaded part:
17.44 - 12.31 = 5.13 cm²
area of total shaded part:
78.5 - 5.13 = 73.37 cm²
16. A radioactive isotope has a half-life of 13 hours. Find the amount of the isotope left from a 400-milligram
sample after 65 hours. If necessary, round your answer to the nearest thousandth.
a. 25 mg
c. 0.049 mg
b. 7.692 mg
d. 12.5 mg
Please help. I only see answers for 52 hours
Answer:
Without the math: 65 hours is 5 half-lives
13 hrs = 1/2
26 hrs = 1/4
39 hrs = 1/8
65 hrs = 1/32
(1/2)^5 = 1/32
400 mg / 32 = 12.5 mg that is, after 5 half-lives
what is forty five plus ninety
Answer:
=135
Step-by-step explanation:
45+90
=45+90
=135
what are the coordinates of point A
Answer: D
(7, -5)
The X axis is the horizontal follow to point A than go down from there then bam answer
In a sale, the normal price of a book is reduced by 20%.
The sale price of the book is £4.80
Work out the normal price of the book
Answer:
5.76
Step-by-step explanation:
4.80×.20=0.96
4.80+0.96=5.76
Q=2u2 - 5
(d) Find the value of Q when u=-3
Answer:
13
Step-by-step explanation:
13 is the right answer
Answer:
Down below
Step-by-step explanation:
[tex]Q=2u^2-5\\u=-3\\Q=(2*-3)^2-5\\Q=(-6)^2-5\\Q=36-5\\Q=31[/tex]
Note: wasn't sure if it was [tex]2u^2[/tex] or 2u*2. tell me and i will change it. this also may be wrong.
ASAP question in the picture
Answer:
try answer C 33ft
Step-by-step explanation:
Geometry: A circle has a diameter of 20 mm. What is the circumference
of the circle?
PLS HELP ME ^^^
Maria must choose a number between 55 and 101 that is a multiple 4,8 of and 12 . Write all the numbers that she could choose. If there is more than one number, separate them with commas.
Answer:
they mean numbers that 4,8 12 can go into and there between 55 and 100 answers: 60,72,80,96,100
Amy spent $90 at the store. She spent 1/3 of her money on food, 1/6 of her money on school supplies, and 1/9 of her money on soda. How much did she spend on school supplies?
Given:
Amy spent $90 at the store.
She spent [tex]\dfrac{1}{3}[/tex] of her money on food, [tex]\dfrac{1}{6}[/tex] of her money on school supplies, and [tex]\dfrac{1}{9}[/tex] of her money on soda.
To find:
How much did she spend on school supplies?
Solution:
According to the given information, Amy spend [tex]\dfrac{1}{6}[/tex] of her money on school supplies.
Amy spent $90 at the store. So,
Money spend on school supplies = [tex]\dfrac{1}{6}\times 90[/tex]
= [tex]15[/tex]
Therefore, Amy spend $15 on school supplies.
In circle L with KNM= 53, find the angle measure of minor arc KM
Answer:
106
Step-by-step explanation:
After eight games the team has won two games lost five and tied one if there season is 24 games how many games will they win at this rate
Answer:
Since the games in total add up to 8, we see that 8 is a factor of 24. It goes in 3 times. Therefore, we have to multiply everything by 3 to get the answer out of 24. There will be 6 wins, 15 losses and 3 tie. That adds up to 24.
This scatter plot shows the relationship between the number of sweatshirts sold and the temperature outside
Answer:
y intercept: 250
slope: -10/3
Step-by-step explanation:
y intercept is where x = 0
slope is found by using the equation (y2 - y1) / (x2 - x1) = (200 - 250) / (15-0) = -50 / 15 = -10 / 3
The y intercept of the scatterplot is 250 sweat shirts and the slope is (10/3)
What is a linear function?
A linear function is in the form:
y = mx + b
Where m is the rate of change and b is the y intercept.
Let y represent the number of sweat shirts sold and x represent the temperature.
The y intercept is at (0, 250).
Using point (0, 250) and (15, 200):
Slope = (200 - 250) / (15 - 0) = 10/3
The y intercept of the scatterplot is 250 sweat shirts and the slope is (10/3)
Find out more on linear function at: https://brainly.com/question/2972832
There are 15 pieces of fruit in a bowl and 40% of them are apples.
How many of the pieces of fruit in the bowl are apples?
Answer:
six out of the fifteen are apples
A parallelogram with a height of 2x+3 has an area listed below. What is the length of the base of the parallelogram? 2x^2+13x+15
Answer:
x+5
Step-by-step explanation:
I thought what 2 numbers if multiplied made 15
also 2x+3 already has a 3
so I'm guessing 3 and 5
then I put them next to each other
(2x+3) ( +5)
I put a x in the second parenthesis as a guess because the area had a 2x^2 in it . that could only happen with 2x * x
so (2x+3) (x+5)
jose paid $47.00 for 4 movie tikits. each tiket cost the same amount . what was the cost of each movie tiket in doller and cents?
Compare investing $1500 at 9% compounded monthly for 11 years with investing $1500 at 14% compounded monthly for 11 years.
Answer:
Final amount after 11 years = $4021.97
Step-by-step explanation:
We will use the formula to get the final amount after t years,
Final amount = [tex]a(1+\frac{r}{n})^{nt}[/tex]
here a = Initial amount
r = Rate of interest
n = Number of compounding in a year
For Initial amount 'a' = $1500
r = 9%
t = 11 years
n = 12 [Compounded monthly]
F = [tex]1500(1+\frac{9}{12})^{12\times 11}[/tex]
= $4021.97
is ib in canada hard?
Answer:
yes because Canada is american country
Correct Answer Gets Brainleist + 15 points. (Please Help..)
Answer:
You need to divide by the cost of children and adults by their per cost to total
describe the operation used to solve the equation 5/6 x - 2= -2/3 x + 1
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
drag each one to the correct set
What is the measure of angle Q?
Answer:
hi
Step-by-step explanation:
x⁰+(x+90)⁰+(x-18)⁰=180⁰
3x+72=180
3x=180-72
3x=108
x=36
Q is equal to x+90=36+90=126
For cheking answer:
R is 36
Q is 126
P is 18
36⁰+126⁰+18⁰=180⁰
hope it helps
have a nice day
Answer:
[tex]x=96[/tex]
Step-by-step explanation:
[tex]360=x+\left(x+90\right)+\left(x-18\right)[/tex]
Step 1: Simplify both sides of the equation.
[tex]360=x+x+90+x-18[/tex]
[tex]360=(x+x+x)+(90+-18)[/tex] (Combine Like Terms)
[tex]360=3x+72[/tex]
Step 2: Flip the equation.
[tex]3x+72=360[/tex]
Step 3: Subtract 72 from both sides.
[tex]3x+72-72=360-72[/tex]
[tex]3x=288[/tex]
Step 4: Divide both sides by 3.
[tex]\frac{3x}{3}=\frac{28}{3}[/tex]
[tex]x=96[/tex]
Hope this helped! :)
If cos A= -4/5 and A is in the second quadrant, then cos 2A = ?
Answer:
i think its second pythagreom therom
Step-by-step explanation:
because
Change 7.25 a.m. to 24 hour clock time.
Use a colon : to separate hours and minutes.
Answer:
the answer is: 07:25 a.m.
can two nonparallel lines can have multiple solutions.
1) always
2) sometimes
3) never
Answer:
3) never
Step-by-step explanation:
Because if both lines are the same then they will have infinite solutions in common.
Answer:
3- Never
Step-by-step explanation:
Determine if the side lengths listed create a right triangle, acute triangle, obtuse triangle, or do not make a triangle. 3, 9, 10 Determina si las longitudes de los lados enumeradas crean un triángulo rectángulo, un triángulo agudo, un triángulo obtuso o no forman un triángulo. 3, 9, 10 * 1 point right acute obtuse not a triangle
Answer:
Obtuse triangle
Step-by-step explanation:
Given the side lengths :
3, 9, 10
Let :
a = 3 ; b = 9 ; c = 10 (longest side)
If a² + b² = c² (right angle)
If a² + b² > c² (acute angle)
If a² + b² < c² (obtuse angle)
a² + b²
3² + 9²
9 + 81 = 90
c² = 10² = 100
90 < 100
Hence,
a² + b² < c² (then we have an obtuse triangle)
Find the length of the arc. Use 3.14 for the value of 7. Round your answer to the nearest tent
10 km
90°
Answer:
15.70
Step-by-step explanation:
2×3.14×10(90÷360)=15.70
The length of the arc is 15,7 km
ExplainForm :
[tex] =2 \times \pi \times {r} \times \frac{ \alpha \degree}{360 \degree} \\ [/tex]
.
Solve :
[tex] = 2 \times \pi \times r \times \frac{ \alpha \degree}{360 \degree} \\ [/tex]
[tex] = 2 \times 3.14 \times 10 \times \frac{90}{360} \\ [/tex]
[tex] = 2 \times 31.4 \times 1 \times \frac{ \cancel{90}}{ \cancel{360}} \\ [/tex]
[tex] = \cancel2 \times 31.4 \times \frac{1}{ \cancel4} \\ [/tex]
[tex] = 31.4 \times \frac{1}{2} \\ [/tex]
[tex] = \frac{31.4}{2} \\ [/tex]
[tex] = 15.7 \: km[/tex]
.
#LearnWithBrainly
I feel like everyone on this app has just given up, because no one has been helping me with any of my math stuff. And it's just like a ghost town here
Answer:
i see how you feel but ._. i just aint good at math shawty
Step-by-step explanation:
if you’re standing on the street 1,300 feet from the bottom of the building, you have to look up at a 23 degree angle to see the top. How tall is the building ? explain or show your reasoning.
Answer:
551.82feet tall
Step-by-step explanation:
WE are given the following from the question;
Distance of me from the bottom of the building = 1300feet (adjacent)
Angle of elevation = 23 degrees
Required
Height (opposite)
Using the SOH CAH TOA identity
Tan theta = opp/adj
Tan 23 = H/1300
H = 1300tan23
H = 1300(0.4245)
H = 551.82feet
Hence the building is 551.82feet tall
Ian is borrowing $1000 from his parents to buy a notebook computer. He plans to pay them back at the rate of $60
per month. Ken is borrowing $600 from his parents to purchase a snowboard. He plans to pay his parents back at
the rate of $20 per month. a) Write an equation that can be used to determine after how many months the boys will owe the same amount.
b) Determine algebraically and state in how many months the two boys will owe the same amount. State the
amount they will owe at this time.
c) Ian claims that he will have his loan paid off 6 months after he and Ken owe the same amount. Determine and
state if Ian is correct. Explain your reasoning.
A = 10 months
B = First part, the two equations:
Ian: y = 1000 - 60x, where x is the number of months and y is the remaining balance owed.
Ken: y = 600 - 20x.
They will be equal at 1000 - 60x = 600 - 20x
Second part: Solve the equation. Note, if you're equation is incorrect, solve it anyway because you will still get some credit!
1000 - 60x = 600 - 20x
1000 = 600 + 40x
400 = 40x
x = 10 months
y = 600 - 20(10) = 600 - 200 = $400 still owed.
C =
Solve Ian's equation for y = 0, when no money is owed.
1000 - 60x = 0
1000 = 60x
x = 16.66666.... or 17 months.
Ian will not be paid off 6 months after he and Ken owe the same amount. He will still owe money.
Alternatively, six months after 10 is 16 months,
and y = 1000 - 60(16) = 1000 - 960 = 40. He will still owe $40 at 16 months, so he is not paid off.