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zaharov [31]
3 years ago
8

Calculate each unknown side length. Round the answer to the nearest tenth.

Mathematics
1 answer:
Korolek [52]3 years ago
6 0
8.7 you need to do the Pythagorean theorem
You were given one side length and the hypotenuse so your equation should b 18^2+x^2=20^2
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Put a check by the two numbers that are prime numbers.
Elanso [62]

24

2**

4

3**

6

12

1

8

these are my answrs but you might get different ones

4 0
3 years ago
What is 13/205 turned into a decimal
nika2105 [10]

To write 13/205 as a decimal you have to divide numerator by the denominator of the fraction.  

We divide now 13 by 205 what we write down as 13/205 and we get 0.063414634146341  

And finally we have:  

13/205 as a decimal equals 0.063414634146341

8 0
3 years ago
If you deposit $100 in a savings account that earns simple interest at a rate of 1.5% per year how much interest will you have e
Alexus [3.1K]
Equation: L=P*R*T

P=100
R=1.5%=0.015
T=5

Multiply and you get 7.5 as the interest.

7 0
4 years ago
Read 2 more answers
Please help me with this question! Will mark brainliest :)
svetlana [45]

lenght :

2x - 3

breadth :

4x + 5

AREA = LENGTH × BREADTH

= (2x - 3) \times (4x + 5)

multiplying the above gives :

= 8 {x}^{2}  + 10x - 12x - 15

= 8 {x}^{2}  - 2x - 15

5 0
3 years ago
Plz help!
jek_recluse [69]

Step-by-step explanation:

let's look at the last line :

x³ + 8x - 3 = Ax³ +5Ax + Bx² + 5B + Cx + D

since we find A, B, C, and D by simply comparing the factors of the various terms in x (or constants) in both sides of the equation, we need to combine a few terms on the right hand side (so that we have one term per x exponent grade).

x³ + 8x - 3 = Ax³ + (5A + C)x + Bx² + (5B + D)

by comparing now both sides, to make both sides truly equal, the factors have to be equal.

A = 1 (the same as for x³ on the left hand side).

B = 0 (a we have no x² on the left side).

5A + C = 8 (a 8 is the factor of x in the left side).

5×1 + C = 8

5 + C = 8

C = 3

5B + D = -3 (as the constant term is -3 on the left side).

5×0 + D = -3

D = -3

so, the 4th answer option is correct.

7 0
2 years ago
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