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Elena-2011 [213]
3 years ago
15

Simplify the expression 3+(8+a)

Mathematics
2 answers:
stellarik [79]3 years ago
8 0

Answer:

<u>11  + a</u>

Step-by-step explanation:

3+(8+a)

add/subtract a like terms

3 + 8 = 11

<u></u>

<u>11 + a</u>

-Dominant- [34]3 years ago
4 0

Answer:

The simplified version of this expression is 11 + a.

Hope this helps!

Brainliest?

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Kryger [21]
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Therefore, (3.5)^2 * 6 =

73.5 [whatever units]^2
4 0
2 years ago
Use a net to find the surface Area of the square pyramid The height of the pyramid is 9 yes and the base sides are all 2.5 yrds
Cerrena [4.2K]

Answer:

Area = 51.68yd^2

Step-by-step explanation:

Given

h = 9yd -- height

a = 2.5yd --- base sides

Required

Determine the surface area

The net is not given. So, I will solve directly.

The surface area is calculated as:

Area = a^2 + 2a\sqrt{\frac{a^2}{4} + h^2}

So, we have:

Area = 2.5^2 + 2*2.5\sqrt{\frac{2.5^2}{4} + 9^2}

Area = 6.25 + 5\sqrt{\frac{6.25}{4} + 81}

Area = 6.25 + 5\sqrt{1.5625 + 81}

Area = 6.25 + 5\sqrt{82.5625}

Area = 6.25 + 5* 9.086

Area = 51.68yd^2

6 0
3 years ago
1.) A triangle has two interior angle measures of 82º and 19º. Find the measure of
daser333 [38]

Answer:

79°

Step-by-step explanation:

A triangle has 180° in it so 180 - 82 =98- 19=79

4 0
3 years ago
How are percent transmittance and absorbance related algebraically?
statuscvo [17]

Answer:

So, if all the light passes through a solution without any absorption, then absorbance is zero, and percent transmittance is 100%. If all the light is absorbed, then percent transmittance is zero, and absorption is infinite.

Absorbance is the inverse of transmittance so,

A = 1/T

Beer's law (sometimes called the Beer-Lambert law) states that the absorbance is proportional to the path length, b, through the sample and the concentration of the absorbing species, c:  


A ∝ b · c

As Transmittance, T =\dfrac{P}{P_0}

% Transmittance, \%T=100\times T

Absorbance,

A=\log_{10} \dfrac{P_0}{P}\\\\A =\log_{10}\times \dfrac{1}{T}\\\\A=\dfrac{\log_{10} 100}{\%T}\\\\A=(2 - log_{10})\times \%T

Hence, A=\log_{10}\times \dfrac{1}{T} is the algebraic relation between absorbance and transmittance.


8 0
3 years ago
|x| + 6 = 3 <br><br> A question on homework
alexdok [17]

Answer:

-9

Step-by-step explanation:

-9+6=-3

5 0
3 years ago
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