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zlopas [31]
3 years ago
5

Find the area of the triangle below. Be sure to include the correct unit in your answer.

Mathematics
2 answers:
natita [175]3 years ago
6 0

problem decoded dude

thank and follow me

lara31 [8.8K]3 years ago
3 0

Answer:

80.5 cm^2

Step-by-step explanation:

h for height=7cm

b for base = 23 cm

A=hb/2

A=7*23/2=161/2= 80.5 cm^2

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Suppose that you drop a ball from a window 50 metres above the ground. The ball bounces to 50% of its previous height with each
stich3 [128]

We have been given that  you drop a ball from a window 50 metres above the ground. The ball bounces to 50% of its previous height with each bounce. We are asked to find the total distance traveled by up and down from the time it was dropped from the window until the 25th bounce.            

We will use sum of geometric sequence formula to solve our given problem.

S_n=\frac{a\cdot(1-r^n)}{1-r}, where,

a = First term of sequence,

r = Common ratio,

n = Number of terms.

For our given problem a=50, r=50\%=\frac{50}{100}=0.5 and n=25.

S_{25}=\frac{50\cdot(1-(0.5)^{25})}{1-0.5}

S_{25}=\frac{50\cdot(1-0.0000000298023224)}{0.5}

S_{25}=\frac{50\cdot(0.9999999701976776)}{0.5}

S_{25}=100\cdot(0.9999999701976776)

S_{25}=99.99999701976776\approx 100

Therefore, the ball will travel 100 meters and option B is the correct choice.

 

4 0
3 years ago
Five times the sum of some number plus 3 is equal to 7 times the number minus 1.
Alexandra [31]
5(x+3)=7x-3 which is the equation, then we solve for it, and the answer is 9
4 0
3 years ago
What’s 6-1/3x=-1 in two step equation???
swat32

Answer:

x=21

Step-by-step explanation:

subtract 6 from both sides get -1/3x=-7

multiply -1/3 or -1/3 as decimal times -7

and get x=21

If brainiest is earned its greatly appreciated. :)

6 0
3 years ago
Solve the problem. Make sure your answer is in simplest form and improper fractions are expressed as mixed numbers.
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If cba represents three numbers multiplied together, what property allows you to rearrange the factors to read abc?
QveST [7]
Commutative property of multiplication states that u can " commute " , move around the numbers and get the same result.
Example : 1 * 2 * 3 = 3 * 2 * 1...they still equal no matter what order u put them in.

so cba = abc by commutative property of multiplication
6 0
3 years ago
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