All categories

3 years ago

How do you write 7.67 x 102 in standard form?

Mathematics

1 answer:

Grace [21]3 years ago

5 0

782.34 is your answer.

You might be interested in

Malachy was thinking of a number. Malachy adds 9 then divides by 3 to get an answer of 48. Form an equation with

stepladder [879]

Step-by-step explanation:

Let,

Number = x

$(x+9) \div 3=48$

$x+9=48\times 3$

$x+9=144$

$x=144-9$

$x=135$

Therefore,

The number = 135

6 0

2 years ago

A certain compound has a half-life of four days. Write and use an exponential decay function to find the amount of compound rema

dimaraw [331]

Answer:

1.97 ounces

Step-by-step explanation:

-The exponential decay function is given by the formula:

$P_t=P_oe^{-rt}\\\\$

Given that the half-life is 4 days, we can substitute in the formula to solve the rate of decay for a single half-life:

$P_t=P_oe^{rt}\\\\P_t=0.5P_o\\\\\therefore 0.5=e^{-4r}\\\\-4r=In(0.5)\\\\r=0.17329$

#Since, 1 week has 7 days, 3 weeks is a 21-day period, thus, t=21.

#We substitute and solve for the amount remaining after 21days of decay:

$P_t=P_oe^{-rt}\\\\=75e^{-21\times 0.17329}\\\\=1.97072\\\\\approx1.97 \ oz$

Hence, the amount remaining after 3 weeks of decays is approximately 1.97 ounces

4 0

2 years ago

Solve the two step equation 8x+38=60

Paladinen [302]

Answer:

x = 2.75

Step-by-step explanation:

The goal here is to isolate the variable, or to get x by itself. We can do this by using simple math. The first step is to move every thing to the opposite side of x. We do this by subtracting 38 from 60, which leaves us with 22. Now we want divide 22 by 8. After doing this we are left with the equation x = 2.75. I know that at first fractions and decimals seem annoying and they feel like a lot of work. But if you take a second to really look at them, you will realize they are not that bad. As in most cases with math, looks can be deceiving

8 0

3 years ago

Has anyone done the segment one practice exam in geometry

konstantin123 [22]

I have done the segment 1 pratice exam

5 0

2 years ago

This is not a question, this is for who-ever needs it.

Eddi Din [679]

Answer:

thank you so much!

Step-by-step explanation:

5 0

2 years ago