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3 years ago

Help broooo math suckssss

Mathematics

2 answers:

tatuchka [14]3 years ago

7 0

Answer:

<BOA

Step-by-step explanation:

60°- 40°= 20°

40°+20°=60°

astra-53 [7]3 years ago

4 0

Answer:

the answer is BOA

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Solving for b in this problem

kipiarov [429]

Answer:

b = 3

Step-by-step explanation:

1. Subisitute P, a, and c (P = 41, a = 19, c = 19 ) into the equation:

P = a + b + c -> 41 = 19 + b + 19

2. Combine like terms:

41 = 38 + b

3. Isolate the variable by subtratcing 38 from both sides

41 - 38 = 38 -38 + b -> 3 = b

6 0

3 years ago

Read 2 more answers

If you start with 85 milligrams of Chromium 51, used to track red blood cells, which

zysi [14]

About 92 days are taken for 90 % of the material to decay.

The mass of radioisotopes ( $m$ ), measured in milligrams, decreases exponentially in time ( $t$ ), measured in days. The model that represents such decrease is described below:

$m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }$ (1)

Where:

$m_{o}$ - Initial mass, in milligrams.
$m(t)$ - Current mass, in milligrams.
$\tau$ - Time constant, in days.

In addition, the time constant is defined in terms of half-life ( $t_{1/2}$ ), in days:

$\tau = \frac{t_{1/2}}{\ln 2}$ (2)

If we know that $m_{o} = 85\,mg$ , $t_{1/2} = 27.7\,d$ and $m(t) = 8.5\,mg$ , then the time required for decaying is:

$\tau = \frac{t_{1/2}}{\ln 2}$

$\tau = \frac{27.7\,d}{\ln 2}$

$\tau \approx 39.963\,d$

$t = -\tau \cdot \ln \frac{m(t)}{m_{o}}$

$t = -(39.963\,d)\cdot \ln \frac{8.5\,mg}{85\,mg}$

$t\approx 92.018\,d$

About 92 days are taken for 90 % of the material to decay.

We kindly invite to check this question on half-life: brainly.com/question/24710827

8 0

2 years ago

Find value of x,yand z

lisov135 [29]

Answer:

X = 90 degrees

Y = 40 degrees

Z = 50 degrees

Step-by-step explanation:

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3 years ago

(3/4)3 write as improper fraction and mixed number

matrenka [14]

15/4, 3 3/4, and 3.75

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3 years ago

Solve the equation using multiplication and division. -13 = m/-5

cestrela7 [59]

Answer:

m = 65

Step-by-step explanation:

$-13 = \frac{m}{-5} \\\\(-5)*-13 = \frac{m}{-5} *(-5)\\\\m = 65$

7 0

2 years ago

Help broooo math suckssss​

Help broooo math suckssss