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dusya [7]
3 years ago
10

What is X??? Please find x??????

Mathematics
1 answer:
bogdanovich [222]3 years ago
5 0

Since the triangle is a right-angle triangle,

Using Pythagoras Theorem,

x^2 + x^2 = 8^2

2(x^2) = 64

x^2 = 32

x = √32 or - (√32)

However, since x is a positive value,

x = √32

Sorry, I don't have a calculator with me right now, but if you want the exact value of x expressed to 3 sig. fig., you can type √32 into a calculator and find out

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During a​ sale, a dress is marked down from a selling price of ​$68 to a sale price of ​$44.20 What is the percent​ markdown?
ipn [44]
44.20 is 40% of 68.00 if 34.00 is 50%
8 0
3 years ago
If an object has a mass of 12Kg on Earth, what would its mass be on the Moon and Mars?
Leviafan [203]

Answer:

mars = 4.54 kg and moon = 1.98 kg

Step-by-step explanation:

12 kg on mars =  4.54 kg

12 kg on moon =  1.98 kg

6 0
3 years ago
Can someone help me with this? I don't understand?
shutvik [7]

Answer:

Step-by-step explanation:

∛(1000)²  =      find the cubed root of 1000 squared    1000 times 1000

∛1,000,000     =  ∛ (100 x 100 x 100)     =  100

But I think they want use to use exponents to solve the problem

1000^2/3         recall   1000 = 10^3   which is   10x10x10

replace 1000 with 10^3

so    

(10^3)^2/3               exponents multiple and divide  some rule as I recall

                                you look it up in your book or on your computer

                               

10^(3)(2)/(3)              the 3s divide to 1  leaving the 2 in the exponent

=    10^2    which is 10²       which is 100

 

6 0
3 years ago
How would the fraction <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B1-%5Csqrt%7B5%7D%20%7D" id="TexFormula1" title="\frac{
allsm [11]

Answer:

\frac{7 + 7 \sqrt{5} }{ - 4}

Step-by-step explanation:

We would multiply the fraction by its conjugate

( A conjugate is a expression that has the same integer or number values but have different signs) for example

5x + 2

and

5x - 2

ARE Conjugates.

The conjugate of

1 -  \sqrt{5}

is

1 +  \sqrt{5}

So this means we will multiply the expression by 1 plus sqr root of 5 on the numerator and denominator.

Our new numerator will be

7 \times (1 +  \sqrt{5} ) = 7 + 7 \sqrt{5}

We can apply the difference of squares for the denominator.

(x + y)(x - y) = x {}^{2}  -  {y}^{2}

So our denominator will be

1 - 5 =  - 4

So our rationalized fraction will be

\frac{7 + 7 \sqrt{5} }{ - 4}

7 0
3 years ago
What is the answers to this
Kazeer [188]
A.)81 b.)500 c.)18 d.)36 e.)150 f.)900 g.)64 h.)54 I.)48 j.)7 k.)343 l.)121 m.)324 n.)1000 o.)32 p.)360 q.)225 r.)242
6 0
3 years ago
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