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Vesna [10]
3 years ago
5

Can someone please help

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0

Angle B = 180 - (45+15) = 120

This is because all the angles in a triangle add up to 180 degrees.

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What is the sum of the counting numbers 1 - 40
AVprozaik [17]
Simply it as follows:

1 + 39 = 40
2 + 38 = 40 etc

18 + 22 = 40
19 + 21 = 40

There are 19 of these plus 40 itself . . .therefore 20 of them

20 x 40 = 800

And finally the last number not used, 20

Therefore 800 + 20 = 820
5 0
3 years ago
Read 2 more answers
Please help asap pretty easy question just stuck
ella [17]

Answer:

Circle Pentagon Triangle Rectangle

8 0
3 years ago
Square root of 648.7209 by division method
SpyIntel [72]

Answer:

25.47

Step-by-step explanation:

This root can be rewritten as:

\sqrt{\frac{6487209}{10000} }

\sqrt{\frac{6487209}{100^{2}} }

\frac{1}{100}\cdot \sqrt{6487209}

Since 6487209 is a multple of 3, the expression can be rearranged as follows:

\frac{1}{100}\cdot \sqrt{3\times 2162403}

2162403 is also a multiple of 3, then:

\frac{1}{100}\cdot \sqrt{3^{2}\times 720801}

\frac{3}{100}\cdot \sqrt{720801}

720801 is a multiple of 3, then:

\frac{3}{100}\cdot \sqrt{3\times 240267}

240267 is a multiple of 3, then:

\frac{3}{100}\times \sqrt{3^{2}\times 80089}

\frac{9}{100}\cdot \sqrt{80089}

80089 is a multiple of 283, then:

\frac{9}{100}\cdot \sqrt{283^{2}}

\frac{9\times 283}{100}

\frac{2547}{100}

25.47

6 0
4 years ago
Im so lost what the answer is
Rainbow [258]

Answer:

Unfortunately, we can't do anything with 41 as it has no factors. Since 3\sqrt{41} is already simplified, try submitting that as your answer. If that doesn't work then try un-doing their steps and get rid of the 3:

3\sqrt{41}

\sqrt{41(9)}

\sqrt{369}

Hope this helps!

5 0
2 years ago
What is the measure of the missing angle in a triangle that contains angle measures of 37° and 59°?
Vera_Pavlovna [14]

Answer:84 degrees

Step-by-step explanation:

so if a triangle is 180 degrees in total you need to find how much you need to equal that so you add 59+37=96 degrees so then you will subtract 180-96=84 degrees

Your welcome!

4 0
3 years ago
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