Answer:
0.484 g
Step-by-step explanation:
N/No = (1/2)^t/t1/2
No = mass of cesium-137 originally present
N= mass of cesium-137 at time t
t1/2= half life of cesium-137
t = time taken
N/5.5=(1/2)^105/30
N/5.5=(1/2)^3.5
N/5.5= 0.088
N = 5.5 * 0.088
N= 0.484 g
Colin invests £100 into his bank account.
He receives 4% per year compound interest.
How much will Colin have after 7 years?
Give your answer to the nearest penny where appropriate.
Answer: £100×104/100×104/100×104/100×104/100×104/100×104/100×104/100
=131.59
Find the equation of lines on graph
Please help I need the answer right now!!!
Find the perimeter of parallelogram ABCD with vertices A(-2,2) B(4,2) C(-6,-1) D(0,-1)
Answer:
I Believe it is A sorry if i`m wrong
Step-by-step explanation:
PLEASE PLEASE HELP!!
Name a pair of linear pairs (Select all that apply).
1. ∠BAD and ∠JAD
2. ∠BFD and ∠CFE
3. ∠BGH and ∠DGE
4. ∠CFB and ∠CFG
5. ∠FDA and ∠FDE
Someone help please ASAP!!
Answer:
9 years = 2626.76 so 2626 Martians
13 years = 1575.255 so 1575 Martians
Step-by-step explanation:
HELP HELP HELP PLS
What is the common denominator between 5/7 and 2/6?
What should the renamed numerators be? (Just type the numerator, not the entire fraction).
Answer:
21 is common denominator.
15 and 7 are the corresponding numberators.
Step-by-step explanation:
You multiply the 7 and 6, then apply to the fractions, and slowly reduce until you find a good match.
Answer:
30 and 14
Step-by-step explanation:
5/7 = times by 6 to get 30/42
2/6 = times by 7 to get 14/42
Help help asap please please please
Answer:
-54
Step-by-step explanation:
-378 ÷ 7 = -54
(-378 is the altitude)
(7 is the amount of minutes)
Hope this helps!!
Have a great day!!
4. 12 ___ -15 = 27
5. -18 ___ -¾ = 24
Answer:
4) 3.5
5) -1.375
Step-by-step explanation:
plug in x for the missing number and solve
Answer:
4. 12 (3.5) -15 = 27
5. -18 (445.5) -¾ = 24
Step-by-step explanation:
4. 12? -15 = 27
12? = 42
? = 3.5
5. -18? -¾ = 24
-18? = 24 + 3/4
-18? = 96/4 + 3/4
-18? = 99/4
? = 891/2 or 445.5
solve for x
4x=8
help please
Answer:
The correct answer is =32x
Answer:
x = 2
Step-by-step explanation:
[tex]4x = 8[/tex]
Lets divide both the sides by 4.
[tex]=> \frac{4x}{4} = \frac{8}{4}[/tex]
[tex]=> x = 2[/tex]
Find the distance between (5, 9) & (-7, -7). Round to the nearest tenth.
Answer:
Step-by-step explanation:
Distance = √[(-7-5)² + (-7-9)²]
= √[144 + 256]
= √400
= 20
Plz help
What decimal number is equivalent to 42%?
the decimal of 42% is equal to 0,42
find the missing angle measures of the following figure
Answer:
1 = 68
2 = 68
3 = 125
Step-by-step explanation:
Hey there!
To find angle 1 all we have to do is subtract the given angles from 180 because remember all of the angles in a triangle add up to 180
180-73-39=68
1=68
angle 2 is vertical to angle 1 therefore they are congruent angles so
2 also equals 68
So we know that the interior angles in a 4 sided shape add up to equal 360
so to find 3 we subtract the given angles from 360
360-90-77-68=125
so 3 = 125
A spinner with 9 equal sections is numbered 1 through 9. The probability of spinning a 3 is 1/9. What is the probability of not spinning a 3? Enter your answer as a fraction, in simplest form, in the box.
Answer:
The probability of not spinning a 3 is [tex]\frac{8}{9}[/tex]
Step-by-step explanation:
The probability of spinning a 3 is 1/9. What is the probability of not spinning a 3?
Spinning a 3 and not spinning a 3 are complementary events, which means that the sum of their probabilities is decimal 1. So
[tex]\frac{1}{9} + p = 1[/tex]
[tex]p = 1 - \frac{1}{9} = \frac{9}{9} - \frac{1}{9} = \frac{8}{9}[/tex]
The probability of not spinning a 3 is [tex]\frac{8}{9}[/tex]
Tucker worked 5.5 hours on Saturday. He earns $7.20 per hour.
How much did he earn on Saturday?
Answer:
$39.6
Step-by-step explanation:
5.5 times 7.20 = $39.6
FIND ANGLE OF DEPRESSION. PLS HELP. AND ANSWER IF YOU FOR REAL KNOW HOW TO ANSWER THIS. WILL MARK U A BRAINLEST IF ITS RIGHT
The student council has $800 to spend on homecoming t-shirts. The number of t-shirts they can buy is a function of the price of the price of the t-shirt p, in dollars, given by n(p)= 800 over p. As p gets larger and larger, what does the end behavior of the function tell you about the situation? *
Answer:
n will get lower and lower
Step-by-step explanation:
In this equation the number of shirts is being multiplied by the price of each individual shirt and ultimately equals a total of $800. This means that the total must always be equal to $800 and cannot surpass it or be blow this value. Therefore, if the value of p gets larger and larger the less the number of shirts (n) that the students will be able to buy. This is the only way for the total cost to remain steady.
estimate the product by first rounding each number to the underlined place value and then multiplying 4.35×38
Okay so I rounded 4.35 to 4.4 and then multiplied 4.4 by 38 and got 167.2
Marco is in elementary school. His father is 30 years older than Marco, and his mother is 4 years younger than his father. The ages of Marco, his mother, and his father are all prime numbers. What are their ages?
If u answer this is will give brainlest because today i got my report card!!!1 the first person who answers is the lucky duck!!!!!!
Answer:
marco is 11
dad is 41
mom is 37
Step-by-step explanation:
gg ez
Show that the credit card number
4306 0912 4887 1457 is valid/invalid.
Explain how you know.
HELP WHATS THE SCALE FACTOR FOR THIS
Answer:1.25
Step-by-step explanation:
Answer:
4:5 (with regards to small:big polygon)
Step-by-step explanation:
12:15 = 4:5
In AJKL, the measure of L=90°, LJ = 2.8 feet, and JK = 9.3 feet. Find the measure
of ZJ to the nearest tenth of a degree.
Answer:72.5
Step-by-step explanation:
Help me with this!!!!
Well the half point of 427 and 428 is 427.5 so 427.5.
A music store bought a CD set at a cost of $.10 When the store sold the CD set, the percent markup was %20. Find the selling price.
Answer:
$12
Step-by-step explanation:
$10 is 100% of the price
The selling price is 120% of the price
x= selling price
10 -------------100%
x ----------------120 %
Cross multiplication
10x120 = 100x
1200 = 100x
Divide both sides by 100
12 = x
Selling price = $12
You may borrow up to 2.5 times your annual income. Arianna is buying a home. Her weekly income is $900. What is the maximum amount that she may borrow?
Answer: $117,000
Step-by-step explanation:
The maximum that Arianna may borrow is 2.5 times her annual income.
First step therefore, would be to calculate her annual income:
= 900 * 52 weeks
= $46,800
She may borrow 2.5 times this:
= 46,800 * 2.5
= $117,000
What is the value of x?
0 12
O 10
06
08
Answer:
8
total degree inside pentagon is (n - 2) x 180 = 540
180-62 = 118
180-66 = 114
180-77 = 103
180-59 = 121
118+114+103+121 = 456
540 - 456 = 84
84 + 12x = 180
12x = 180-84
x = 96/12
x = 8
The value of x in the given pentagon is 8.
Option D is the correct answer.
What is a Pentagon?A pentagon is a polygon that has five sides and five angles.
The sides and angles of a pentagon are not all equal unless it is a regular pentagon.
A regular pentagon has five equal sides and five equal angles.
We have,
For a pentagon, n = 5, so we have:
total degree = (5 - 2) × 180 degrees
total degree = 3 × 180 degrees
total degree = 540 degrees
Now,
Each angle makes a straight angle.
So,
77 + a = 180
a = 180 - 77 = 103
59 + b = 180
b = 180 - 59 = 121
c + 66 = 180
c = 180 - 66 = 114
d + 62 = 180
d = 180 - 62 = 118
Now,
a + b + c + d + e = 540
103 + 121 + 114 + 118 + e = 540
e = 540 - 456
e = 84
Now,
12x + 84 = 180
So,
12x = 180 - 84
12x = 96
x = 8
Thus,
The value of x is 8.
Learn more about the Pentagon here:
https://brainly.com/question/30182047
#SPJ7
Explain how you would use the Distributive Property to simplify the following expression: 4(c + 8) when c = 2
Answer:
40
Simplified equation:
8+32
Step-by-step explanation:
4(2+8)
x4
8+32
40
Beginning with the equation 2x + 8y = 12, write an additional equation that would create:
a system with no solutions
Answer:
[see below]
Step-by-step explanation:
A system of equations with no solution would show parallel lines. We just have make a equation that is parallel to the original equation.
The slope of 2x + 8y = 12 is [tex]-\frac{1}{4}[/tex], and it's y-intercept is [tex]\frac{3}{2}[/tex].
Since parallel lines have the same slope but not the same y-intercept, I would use [tex]y=-\frac{1}{4}x+3[/tex].
Any equation that has -1/4 as the slope would work.
When graphed together, they show as a system with no solution.
Hope this helps.
What is pi (3.14159265) to the force of pi?
It is =3.14159265359 :)
EFG is similar to JKL and JKL is similar to QRS which statement is true
Answer: B EFG is similar to QRS.
Step-by-step explanation: Not hard, JKL is similar to QRS and EFG is similar to JKL so?
In which situation do the quantities combine to make 0? A Kurt deposited $50 into his checking account on Friday. The next week, he deposited $50 into his savings account. B A football team gained 4 yards on one play and lost 2 yards on the next play. C The temperature at 10 pm was 6°C. Over the next 3 hours, the temperature decreased by 2°C each hour. D Marci spends $8 to make a necklace and earns $8 from each bracelet sold. On Saturday, she made 5 necklaces and sold 10 bracelets.
