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joja [24]
2 years ago
12

Please Help Me!

Mathematics
1 answer:
luda_lava [24]2 years ago
6 0

Answer:

A. they both have 4 right angles

B. a sqaure has 4 even sides, a rectangle doesnt

c. they both have 4 even sides

d. rhombi has 2 acute and 2 obtuse angles

e. Parallelograms are a quadrilateral where diagonals bisect each other, opposite sides are parallel by definition, opposite sides are congruent and consecutive angles are supplementary.

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radius of convergence = 1

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A right rectangular prism with length 6cm, width 3cm , and height 7 cm​
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Number 17 please and thank you . I don’t understand it . Do you plug in each 10-50 as T into your calculator?
Nat2105 [25]

The half-life for such a substance is the time t required to have the amount (in grams \mathrm g) at time t (in seconds \mathrm s), y(t), decay to half the starting amount y_0. In other words, for krypton-91, after 10 seconds we would have y(10\,\mathrm s)=\dfrac{y_0}2. We can use this information to solve for k, then plug in various values of t to find the amount of krypton-91 that's left...

But we don't need to! We already know it takes 10 seconds for half of the substance to decay. So if we start with 16 grams, then after 10 seconds, 8 grams will remain.

10s later (after a total of 20 seconds), 4g will remain.

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Help!? Helping my son with geometry ... I have no clue what I’m doing here
Tatiana [17]

<u>We are Given:</u>

∠1 = 65°

<h3><u>Finding the measure of all other angles with proof:</u></h3>

<u>∠2:</u>

∠1 + ∠2 = 180°           <em>(angle 1 and 2 form a Linear Pair)</em>

65 + ∠2 = 180            <em>(Angle 1 = 65°)</em>

∠2 = 180 - 65

∠2 = 115°

<u>∠3:</u>

∠1  = ∠3            <em>(Angle 1 and 3 are vertically opposite)</em>

65 = ∠3             <em>(Angle 1 = 65°)</em>

<em>∠3 = 65°</em>

<em />

<u><em>∠4:</em></u>

∠4 = ∠2                  <em>(Vertically opposite angles)</em>

∠4 = 115°                <em>(∠2 = 115°)</em>

<u><em /></u>

<u>∠5:</u>

∠5 = ∠1          <em>(Corresponding angles)</em>

∠5 = 65°        <em>(∠1 = 65°)</em>

<u><em /></u>

<u>∠6:</u>

∠6 = ∠2      <em>(Corresponding angles)</em>

∠6 = 115°    <em>(∠2 = 115°)</em>

<em />

<u>∠7:</u>

∠7 = ∠3        <em>(Corresponding Angles)</em>

∠7 = 65°       <em>(∠3 = 65°)</em>

<em />

<u>∠8:</u>

∠8 = ∠4        <em>(Corresponding angles)</em>

∠8 = 115°      <em>(∠4 = 115°)</em>

4 0
3 years ago
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