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2 years ago

Are two equilateral triangles always equal

Mathematics

2 answers:

tatyana61 [14]2 years ago

7 0

No, the degrees are always equal but not the length of the sides

weqwewe [10]2 years ago

6 0

No not always the degrees maybe
i hope this helps

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A fair spinner A is spun 7 times. What is the probability of getting “Green” at least 5 times if there are 8 colors separated eq

sasho [114]

Answer:

$6\frac{2}{3}$

Step-by-step explanation:

OK, so basically I'm pretty sure that you add all of them together and put it as a fraction over 3 so basically $\frac{20}{3}$ then simplify it into $6\frac{2}{3}$

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2 years ago

Jean bought 4 2 3 yards of fabric. How much is this in feet?

Misha Larkins [42]

Here we have to convert 423 yards into feet.

first let us find the basic relation between yard and feet

1 yard =3 foot

so applying this to our question we get,

423 yard =423*3 foot = 1269 feet

Answer 423 yards =1269 feet

7 0

3 years ago

How to find the square root of complex numbers?? Find the square root of (6+8i) ??

ivann1987 [24]

Answer:

$2 \sqrt{2} + i \sqrt{2}$

Step-by-step explanation:

The square of a complex number is a complex number. Here, we have:

${(a + bi)}^{2} = 6 + 8i$

${a}^{2} + 2abi - {b}^{2} = 6 + 8i$

We then have this system of equations:

${a}^{2} - {b}^{2} = 6$

$2ab = 8$

Solving this system:

$ab = 4$

$b = \frac{4}{a}$

${a}^{2} - {( \frac{4}{a}) }^{2} = 6$

${a}^{2} - \frac{16}{ {a}^{2} } = 6$

${a}^{4} - 16 = 6{a}^{2}$

${a}^{4} - 6 {a}^{2} - 16 = 0$

$( {a}^{2} - 8)( {a}^{2} + 2) = 0$

${a}^{2} = 8$

$a = 2 \sqrt{2}$

$b = \frac{4}{2 \sqrt{2} } = \sqrt{2}$

6 0

1 year ago

Read 2 more answers

Jordan would like to buy an oil painting with an original price of $744.00. Which coupon should he use 55% off or $400.00

Ksivusya [100]

Answer:

The 400 coupon is 80 cents better

Step-by-step explanation:

First find the sale price with the coupon

744 - 400 = 344

Now find the sale price with the discount

100-55 = 45

We will pay 45% of the original price

744*45%

744*.45

344.80

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3 years ago

10 quater to 12 dimes , to 16 nickels

Fittoniya [83]

10 quarters to 12 dimes, to 16 nickels
10(0.25) to 12(0.1), to 16(0.05)
2.5 to 1.2, to 0.8
2.083 to 0.8
1.6664

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3 years ago