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Zigmanuir [339]
3 years ago
8

Paolo is adding the numbers below. what is the sum written in scientific notation?

Mathematics
1 answer:
jolli1 [7]3 years ago
8 0
Where are your numbers?
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A square has a length of 13m, find its area A. 1699m² B. 169m² C. 196m² D. 169m² I will mark you as brainliest
mars1129 [50]

Answer: 169 m²

Step-by-step explanation:

The area of a square can be found by taking a side length(13), and squaring it, to get, in this case, 139.

Hope it helps <3

4 0
3 years ago
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. Tommy is drawing a triangle with angles measuring 41° and 123°, and the included side measures 6 cm. What is the measure of th
Scilla [17]
The third angle is 16 degrees because you just add 41 and 123 together then minus that answer from 180 degrees to get the answer 16 degrees
4 0
3 years ago
What is the length of AB? (Nearest TENTH) A.34 B.105.3 C.11.8 D.24.7
jasenka [17]

Answer:

The answer is option A.

Step-by-step explanation:

To find the length of AB we use sine

sin∅ = opposite / hypotenuse

From the question

AB is the hypotenuse

AC is the opposite

sin 36 = AC / AB

sin 36 = 20/ AB

AB = 20 / sin 36

AB = 34.026

<h3>AB is 34 to the nearest tenth</h3>

Hope this helps you

5 0
3 years ago
For what values of x and y are the triangles to the right congruent by​ HL?
vaieri [72.5K]

Answer:

x = 28/3

y = 7/3

Step-by-step explanation:

If the triangles are congruent, then corresponding sides are equal.

x = 4y

x + 1 = y + 8

Solve the system of equations using substitution or elimination.  Using substitution:

4y + 1 = y + 8

3y = 7

y = 7/3

Solving for x:

x = 28/3

6 0
3 years ago
Jeremy find the cost by adding the percents. 25% off of $60 is equal to 15% off of $60, then subtracting 10% from that cost is e
bonufazy [111]

Answer:

a. 25% off of $60 is equal to $45.

b. 15% off of $60, then subtracting 10% from that cost is equal to $45.

c. The two total costs are $45 and $45, and their addition is equal to $90 (i.e. $45 + $45 = $90).

Step-by-step explanation:

These can be determined as follows:

a. Calculation of the first total cost, i.e. 25% off of $60

25% of 60 = 25% * $60 = 15

First total cost = 25% off of $60 = $60 - (25% of $60) = $60 - $15 = $45

Therefore, 25% off of $60 is equal to $45.

b. Calculation of the second total cost, i.e. 15% off of $60, then subtracting 10% from that cost

15% of $60 = $9

10% of $60 = $6

Cost = 15% off of $60 = $60 - (15% of $60) = $60 - $9 = $51

Second total cost = Cost - (10% of $60) = $51 - $6 = $45

Therefore, 15% off of $60, then subtracting 10% from that cost is equal to $45.

c. The two total costs

The two total costs are 25% off of $60 which is equal to $45 and 15% off of $60, then subtracting 10% from that cost which is also equal to $45. The addition of the two costs is $90 (i.e. $45 + $45 = $90).

Therefore, the two total costs are $45 and $45, and their addition is equal to $90 (i.e. $45 + $45 = $90).

7 0
3 years ago
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