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I am Lyosha [343]
3 years ago
13

Please help me with this!! Number 6 is the problem

Mathematics
1 answer:
artcher [175]3 years ago
8 0
The first two consecutive odd integers are 1 and 3.
The height has to be 3 since the question implies that the height is exceeds the base. So the base is 1. b = 1 cm

The area of a triangle is base*height*(1/2)
Plug in the values for base and height.
1*3*(1/2)

Simplify. Your final answer should be 1.5 cm^2
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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 <em>decay</em>.

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 <em>decay</em>.

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

8 0
2 years ago
How to do this problem ​
Lelu [443]

Answer: y  =  − 2 x  +  8

Step-by-step explanation:

Use the slope formula and slope-intercept form  y = m x + b  to find the equation.

y  =  − 2 x  +  8

I hope this help.

Download docx
4 0
3 years ago
Read 2 more answers
Penelope is 4 times as old as Jose. Jose is 3 years older than Eliot. If the sum of all three is 57 years, how old will Jose tur
andrezito [222]
Jose is 13 and a half, Penelope is 40 and a half, and Eliot could be 3 years old. Jose would turn seventeen and a half in 4 years

3 0
3 years ago
Need help with this please thanks
OlgaM077 [116]
Hmmm lemme look reply if u still need help

6 0
3 years ago
What are the solutions of the equation?
andre [41]

Answer:

Step-by-step explanation:

0 = x2 + 3x - 10

10 = 2x+3x

10 = 5x

x = 2

0x = 5.2

0x = 10

x = 10.2 = 20

x = 20

0x = -5.-2

0x = -10

x = -10.2 = -20

x = -20

x = -5.2

x = -10

x = 5-2​

x = 3

GOOD LUCK ! ;)

3 0
3 years ago
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