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nadya68 [22]
2 years ago
8

For 100 points asap please give right anser

Mathematics
1 answer:
Vlad [161]2 years ago
5 0

Answer:

224mm²

Step-by-step explanation:formula for area of triangle = base x height x 1/2

8x10 = 80     80 / 2 = 40       40 x 4 = 160      area for square =base x height

the pyramid is comprised of four triangles and one square, all we need is to find the individual surface areas of the shapes that compose the pyramid

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Can someone help? 25 points
gregori [183]

Answer:

t ≥ 18

Step-by-step explanation:

He has run 12 miles plus some more miles t.  He need to run at least 30 miles

12+t ≥ 30

Subtract 12 from each side

12+t-12 ≥ 30-12

t ≥ 18

3 0
3 years ago
Read 2 more answers
ASAP I NEED HELP <br> four 28s in lowest terms​
Margaret [11]

1/7 is the answer. 4/28 = 1/7 but in the lowest term

5 0
3 years ago
Isotope mass (amu) abundance (%) 1 203.97304 1.390 2 205.97447 24.11 3 206.97590 22.09 4 207.97665 52.41 find the atomic mass of
Nata [24]
Answer:
average atomic mass = 207.2172085 amu

Explanation:
To get the average atomic mass of an element using the abundance of its isotopes, all you have to do is multiply each isotope by its percentage of abundance and then sum up all the products.

For the question, we have:
203.97304 amu has an abundance of <span>1.390% (0.0139)
</span>205.97447 amu has an abundance of 24.11% (0.2411)
206.97590 amu has an abundance of 22.09% (0.2209)
207.97665 amu has an abundance of 52.41 % (0.5241)

The average atomic mass can be calculated as follows:
average atomic mass = 203.97304(0.0139) + 205.97447(0.2411)
                                     + 206.97590(0.2209) + 207.97665(0.5241)
average atomic mass = 207.2172085 amu

Hope this helps :)
7 0
3 years ago
HElpPpPp mEeEe pLeAsE
Ivahew [28]

Answer:

<em>b</em><em> </em><em>=</em><em> </em><em>44</em><em> </em><em>feet</em><em> </em>

Step-by-step explanation:

BY Pythagorus theorem :-

=》

55 {}^{2}  = 33 {}^{2}   + b {}^{2}

=》

3025  = b {}^{2}  + 1089

=》

b {}^{2}  = 3025 - 1089

=》

b {}^{2}  = 1936

=》

b =  \sqrt{1936}

=》

b = 44

7 0
2 years ago
Please help me my teacher won’t help me at all :/
Rudik [331]

Answer:

1 to 75

2 to 120

3 to 165

4 to 210

5 to 255

Step-by-step explanation:

5 0
2 years ago
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