Answers
Answer:
t= 41.2 minutes
Step-by-step explanation:
[tex]16=290(0.5)^{\frac{t}{10} }[/tex]
Divide by 290 to get the exponential expression alone
[tex]\frac{16}{290} \\\frac{8}{145}=(.0.5)^{t/10}[/tex]
Use Logs to solve
[tex]x=a^{y}[/tex] is equal to [tex]y=log_{a} x[/tex]
[tex]\frac{t}{10} =log_{0.5} \frac{8}{145}[/tex] (put in calculator)
[tex]\frac{t}{10} = 4.18[/tex]
t= 41.2 minutes
Related Questions
pleaseeeee I needdd help, please
find x value using the quadrants
sinx = ( - sin²x + cos²x)
Answers
Answer:
Step-by-step explanation:
sin²x+cos²x = 1. No Matter What is the value of x. For Explanation: Sin x is opposite_side/hypotenuse of a Right angle triangle. Cos x is adjacent_side/hypotenuse of a Right angle triangle.
What is the next number in this sequence? 2, 16, 128, 1024, ___________
Explain what you did to get your answer.
Answers
What is the difference between a wheel and a roller?
Answers
b. How many hours will Max have to work if he wants to earn $186?
Max must work
hours if he wants to earn $186.
Answers
Answer:
Step-by-step explanation:
How are we supposed to know bcuz we dont know how much he is getting an hour so i cant help u sorry you gave us barely any info
There are 4 consecutive even integers that add up to 268. Which integers are they?
Answers
Answer:
4n+ 12 = -268, or 4n = -280, or n = -70. This would imply that the four consecutive ODD integers are -70, -68, -66, -64.
Step-by-step explanation:
Hope this helps :)
Matteo spends a total of 38 min exercising. He walks for 6 min to warm up and then runs at a constant rate of 8 min per mile for the rest of the time. Matteo says that he ran 4.75 mi. Is he correct?
Answers
Answer:
No, he not correct because he only ran 4 mi
Step-by-step explanation:
If he walks for 6 min out of the 38 min, then he ran for 32 min.
d = rt 1 mi = 8r
r = 1/8 = 1 mi/8 min Since he ran 32 min we have
d = 1/8(32) = 4 mi.
No, he not correct because he only ran 4 mi
QUICK QUICK QUICK 7 MINUTE
Answers
Answer:
p is the answer!!!!!!!!!!!!!
1. Write the slope-intercept form of the equation that passes through the point (0, 1) and is parallel to the line y = 3x - 5
O y = 3x + 1
O y = 3x - 4
O y = -1/3x - 4
O y = -1/3x + 1
Answers
Answer:
y = 3x + 1
Step-by-step explanation:
If two lines are parallel to each other, they have the same slope.
The first line is Y = 3X - 5. Its slope is 3. A line parallel to this one will also have a slope of 3.
Plug this value (3) into your standard point-slope equation of y = mx + b.
y = 3x + b
To find b, we want to plug in a value that we know is on this line: in this case, it is (0, 1). Plug in the x and y values into the x and y of the standard equation.
1 = 3(0) + b
To find b, multiply the slope and the input of x (0)
1 = 0 + b
Now, add 0 to both sides to isolate b.
1 = b
Plug this into your standard equation.
y = 3x + 1
This equation is parallel to your given equation (y = 3x - 5) and contains point (0, 1)
Hope this helps!
PLEASE HELP!!
asap, thank you if you do.
you do not have to do all of them, please show work btw.
Answers
Answer:
5. 36 square inches
2. Answer is B.
3. 189 cm^2
Step-by-step explanation:
5. 6 + 6 + 6 + 8 + 10 = 36
3. 51 + 102 + 36 = 189
William bought a new storage box to hold all of her fishing supplies. His box measures 13 1/7 inches long, 7 2/5 inches wide, and 4 3/4 inches tall.
Answers
Answer:
461.97 in³
Step-by-step explanation:
Given the following measurement for the dimension of a box : 13 1/7 inches long, 7 2/5 inches wide, and 4 3/4 inches tall.
The volume of a box is calculated using the relation :
Volume = Length * width * height
Volume = 13 1/7 * 7 2/5 * 4 3/4
Volume = 92/7 * 37/5 * 19/4
Volume = (92*37*19) / (7*5*4)
Volume = 64676 / 140
Volume = 461.97 in³
You and your friend were working the ticket table at the last school basketball game.
The tickets sold for $5 for adults and $3 for students.
A total of 375 people attended the
game and a total of $1375 was taken in at the ticket table. How many adult tickets were
sold and how many student tickets were sold?
Answers
Answer:
Step-by-step explanation:
First
a+s=375
a=375-s
Next
5a+3s=1375, now using a found above makes this equation become
5(375-s)+3s=1375
1875-5s+3s=1375
1875-2s=1375
-2s=-500
s=250, since a=375-s
a=375-250
a=125
So 125 adult and 250 student tickets were sold.
Please please asap!!
Answers
Answer:I don't know this one
Step-by-step explanation:
A veteran math teacher at a large high school claims that 93% of their students pass the state’s final exam. A random sample of 120 of the teacher’s students was chosen, and 108 passed the state’s final exam. Let p hat = the proportion of the random sample who passed the state’s final exam.
The probability that 90% or fewer of this teacher’s students passed the state’s final exam is 0.096. Does this result provide convincing evidence against the teacher’s claim?
Yes, it is expected that at least 90 of the students will pass the state’s final exam.
Yes, the probability of seeing the sample result is so far from what is expected that the probability of it occurring by chance alone is very unlikely.
No, there is a very small chance of seeing the sample result. It is unlikely to occur by chance alone.
No, the difference between the sample result and what is expected is not extreme enough. The probability of it occurring by chance alone is not unlikely.
Answers
Answer:
Yes, the probability of seeing the sample result is so far from what is expected that the probability of it occurring by chance alone is very unlikely.
Step-by-step explanation:
I hope this is right
ADD NOTE
QUESTION GUIDE EXIT TEST
3. A wedge of cheese is in the shape of a triangular prism. The dimensions of the wedge
are shown below.
30.5 cm
TAAR
as olles
em Readiness
16 cm
12 cm
20 cm
What is the volume of the wedge of cheese?
Answers
Franco earns $8 per hour at his after-school job. Last week, he received a paycheck of more than $168. If he worked for h hours that week, find all the inequalities that represent this situation.
a.) 8 x h > 168
b.) 8 > 22 x h
c.) 8 x h < 168
d.) h > 21
e.) h < 21
Answers
Answer: A and D
Step-by-step explanation:
if he earns $8 an hour and he got $168 and h= the hours then
h=8 x 21 = 168
Answer:
The other person is correct.
Step-by-step explanation:
help pls, I'm timed!
Answers
Answer:
90
Step-by-step explanation:
Simply the following
-2+3(1-4)-2
Answers
Answer:
- 13
Step-by-step explanation:
Given
- 2 + 3(1 - 4) - 2 ← evaluate parenthesis
= - 2 + 3(- 3) - 2 ← perform multiplication
= - 2 - 9 - 2
= - 13
Step-by-step explanation:
solution
= -2+3(3)-2
=-2+3*3-2
= -2+9-2
=-11-2
= -9
Solve for x*
please help
Answers
Answer:
B
Step-by-step explanation:
∠ AEB and ∠ ADC are corresponding angles and are congruent, then
3x - 10 = x + 40 ( subtract x from both sides )
2x - 10 = 40 ( add 10 to both sides )
2x = 50 ( divide both sides by 2 )
x = 25
plz besties can you help me
a) show that k lies between - 8 and 1 in the following inequality
[tex] {k}^{2} + 7k \leqslant 8[/tex]
Answers
Answer:
-8≤k≤1
Step-by-step explanation:
k²+7k-8≤0
(k+8)x(k-1)≤0
k1= -8
k2= 1
-8≤k≤1
Graph f(x) = 2x - 1. Which of the following graphs is correct?
Answers
Answer:
there are no choices
Step-by-step explanation:
Mrs. Foust wants to know Aziza’s age. She knows that Aziza is the middle child. Her sister, Capri, is 4 years older than Aziza, and her sister, Portia, is 5 years younger than Aziza. The sum of their ages is 38. Let a represent Aziza’s age. Which statements are true about this scenario? Check all that apply.
Answers
Answer:
The expression that represents Capri’s age is a + 4.
The expression that represents Portia’s age is a – 5.
Step-by-step explanation:
The expression that represents Capri's age is a + 4.
The expression that represents Portia's age is a -5.
To write an equation for this scenario, Capri's age needs to be equal to Portia’s age
The equation used to represent this scenario is a + a + 5 + 2 - 4 = 38.
Solving this equation will give Aziza's age.
Aziza'a age = a
Portia age = a - 5
Capri's age = 4 + a
a + a - 5 + 4 + a = 38
(x-1) (x+2) (x-3)= muszę wykonać działanie wyznaczyć iloczyn
Answers
Answer:
x^3-2x^2-5x+6
Step-by-step explanation:
(this is 12 year old math)
The prince of a visit to the dentist is calculated according to the formula 50+100n where N is the number of cavities the dentist finds.
On your last visit to the dentist, 2 cavities were. found
what was the cost of your visit?
Answers
it’s 250 because they’re was two cavities so that means 100 x 2 which = 200 then add 50 = 250
hes right the answer would be 50+200n so 200
Need help what is the answer, please.
I am so confused
NO SPAM ANSWERS!!!!
(YOU HAVE BEEN WARNED)
NO LINKS AS WELL!!!
(WILL BE REPORTED IF NOT APPLICABLE)
Answers
Answer:
V = 405.04
Step-by-step explanation:
Volume of a cone:
V = πr²(h/3)
V = 3.14(6.1²)(10.4/3)
V = 3.14(37.21)(10.4/3)
V = 405.04
pls answer asap!!ty!!
Please label the missing angles below.
Answers
Answer:
Triangle A: 38 degrees
Triangle B: Unknown (not enough information)
Triangle C: Unknown (not enough information)
Triangle D: 70 degrees
Triangle E: 40 degrees
Step-by-step explanation:
Work for Triangle A: 90 + 52 = 142. 180 - 142 = 38.
Work for Triangle B: Unidentifiable because there is no indicator to tell you if any of the angles/lines are equal. Generally there will be a "double lined" indicator in the corners of which a triangles angles are equal.
Work for Triangle C: Same as B.
Work for Triangle D: 90 + 20 = 110. 180 - 110 = 70.
Work for Triangle E: 90 + 50 = 140. 180 - 140 = 40.
hi please help i’ll give brainliest
Answers
Answer:
3
Step-by-step explanation:
3 x (2) - (3)
1.What is the coefficient of y in the expression -3x+5y+7?
A) -3 B) 5 C) 7 D) 5y
2.How many terms does this expression -3x+5y+7have?
-3 B) 5 C) 3 D) 2
Answers
2. The expression has C) 3 terms.
i
x+2y=-1
y=-3x - 8
Help please
Answers
Answer:
x= -3 y =1
Step-by-step explanation:
2/5 divided by 3/4
9/4 divided by 3/4
-5/7 divided by 1/3
-5/3 divided by 1/6
Answers
2/5 ÷ 3/4 = 8/15
9/4 ÷ 3/4 = 3
-5/7 ÷ 1/3 = -15/7
-5/3 ÷ 1/6 = -10
Solve for k, the constant of variation, in an inverse variation problem where y=17 x=6
Answers
Answer:
k=102
Step-by-step explanation:
hope this helps with your assignment