All categories

3 years ago

What is the value of angle x°?

Mathematics

1 answer:

astraxan [27]3 years ago

5 0

Answer:

x = 121

Step-by-step explanation:

To find x, you can add 154 and 88 and divide the total by 2.

154 + 88 = 242

242/2 = 121

x = 121

You might be interested in

Please mates, look at the image and the questions that I will writeand tell me the correct answer with explanation, I really nee

scoundrel [369]

Answer:

A,,B,C,D,D,C,D

Step-by-step explanation:

5 0

2 years ago

Solve x2 − 10x = −21. (6 points)

Svetllana [295]

The CORRECT answer is::

x = -3 and x = -7

WORK::

Move ALL terms to the left side and set equal to zero. Then set each factor equal to zero.

4 0

3 years ago

Read 2 more answers

0.644×0.25 <br><br>Need the asap

Oduvanchick [21]

Answer:

0.161

Step-by-step explanation:

The answer to 0.644 times 0.25 will end up resulting in the answer above

I'm assuming this was a simple multiplication problem? Correct me if I'm wrong on that :P

5 0

2 years ago

A sample of a radioactive isotope had an initial mass of 360 mg in the year 1998 and

RUDIKE [14]

Answer:

193 mg

Step-by-step explanation:

Exponential decay formula:

$A_t = A_0e^r^t$
where Aₜ = mass at time t, A₀ = mass at time 0, r = decay constant (rate), t = time

Our known variables are:

1998 to the year 2004 is a total of t = 6 years.
The sample of radioactive isotope has an initial mass of A₀ = 360 mg at time 0 and a mass of Aₜ = 270 mg at time t.

Let's solve for the decay constant of this sample.

$270=360e^-^r^(^6^)$
$270=360e^-^6^r$
$\frac{3}{4} =e^-^6^r$
$\text{ln} (\frac{3}{4} )= \text{ln}(e^-^6^r)$
$\text{ln} (\frac{3}{4} )=-6r$
$r=-\frac{\text{ln}\frac{3}{4} }{6}$
$r=0.04794701$

Using our new variables, we can now solve for Aₜ at t = 7 years, since we go from 2004 to 2011.

Our new initial mass is A₀ = 270 mg. We solved for the decay constant, r = 0.04794701.

$A_t=270e^-^(^0^.^0^4^7^9^4^8^0^1^)^(^7^)$
$A_t=270e^-^0^.^3^3^5^6^2^9^0^7$
$A_t=193.01982213$

The expected mass of the sample in the year 2011 would be 193 mg.

3 0

2 years ago

Heather started washing at 4:05 pm and finished at 4:41pm how long did it take her? Give your answer in minutes

s344n2d4d5 [400]

Answer:

36 minutes

Step-by-step explanation:

41 - 5 = 36

Hopefully this helps you :)

pls mark brainlest ;)

3 0

3 years ago