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Crazy boy [7]
2 years ago
11

I need help asappp pleaseee

Mathematics
1 answer:
andreyandreev [35.5K]2 years ago
4 0
If a straight line is 180 degrees you would then set up you equation as (10x+2)+(9x+18)=180
Solving that would give you
X= 8 8/19
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Find the height of the triangle: Area of the triangle = 21.6 cm 2 , base=3.6 cm
wlad13 [49]

Answer:

base=3.3=cm

Step-by-step explanation:

9.1 cm

6 0
2 years ago
Congruen Figures lyures Which figure is congruent to the given figure? Will give brainliest ​
Elena L [17]

Answer: Its the rectangle thats going upwards not flat.

Step-by-step explanation:

5 0
3 years ago
The half-life of iron-52 is approximately 8.3 hours.How much of a 13 gram sample of iron-52 would remain after 8 hours? Round to
Alexandra [31]

6.665 grams of the 13 grams remain after 8 hours.

<h3>How much of a 13 gram sample of iron-52 would remain after 8 hours?</h3>

The decay equation for the 13 grams of iron-52 is:

N(t) = 13g*e^{(-ln(2)/8.3h)*t}}

Where N is the amount of iron-52, and t is the time in years.

Where we used the fact that the half-life is exactly 8.3 hours.

Now, the amount that is left is given by N(8h), so we just need to replace the variable t by by 8 hours, so we get:

N(8h) = 13g*e^{(-ln(2)/8.3h)*8h}} = 6.665g

So 6.665 grams of the 13 grams remain after 8 hours.

If you want to learn more about half-life:

brainly.com/question/11152793

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5 0
1 year ago
Given: &lt;SPT = &lt;RQT, ST = RT Prove: PR = QS​
andrey2020 [161]

Answer:

See explanation

Step-by-step explanation:

Consider triangles PTS and QTR. In these triangles,

  • ST=RT - given;
  • \angle SPT=\angle RQT - given;
  • \angle STP=\angle RTQ - as vertical angles when lines PR and SQ intersect.

Thus, \triangle PTS\cong \triangle QTR by AAS postulate.

Congruent triangles have congruent corresponding sides, so

PT=QT

Consider segments PR and QS:

PR=PT+TR\ [\text{Segment addition postulate}]\\ \\QS=QT+TS\ [\text{Segment addition postulate}]\\ \\PT=QT\ [\text{Proven}]\\ \\ST=RT\ [\text{Given}]

So,

PR=SQ\ [\text{Substitution property}]

7 0
3 years ago
So me 3 ways you get to 100
In-s [12.5K]
10 x 10 = 100
 20 + 20 + 20 + 20 +20 = 100
4 x 25 = 100
5 0
3 years ago
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