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3 years ago

14

Can the sides of a triangle have lengths 2.4, 6.5, and 7.4?

1 answer:

Ira Lisetskai [31]3 years ago

4 0

Answer:

yes.

Step-by-step explanation:

2.4 + 6.5 = 8.9 (triangle inequality)

8.9 > 7.4

= it is possible to make a triangle wit these measurements.

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Mark for review (Will be highlighted on the review page) 1. Solve this equation: 80 = 3y + 2y + 4 + 1.

saul85 [17]

First combine the like terms 3y + 2y to get 5y. Then combine 4 + 1 to get 5. Your equation will now be 80 = 5y + 5. To solve for y, 5 needs to be subtracted from both sides of the equation leaving 75 = 5y. Final step to solving for y, 5 needs to be divided from each side of the equation leaving the final answer of
15 = y.

7 0

3 years ago

I am really confused about this question for math.. any help would be really appreciated:

Elina [12.6K]

$y= (\frac 1 4 )^x$

A reflection about the x axis, about y=0, is the mapping (x',y')=(x,-y) so

$y'= -y = - (\frac 1 4)^{x'}$

A dilation of 2 is the mapping (x'',y'')=(2x', 2y')

So

$x'=x''/2, y'=y''/2$

$y''/2= - (\frac 1 4)^{x''/2}$

$y'' = - 2((\frac 1 4)^{1/2})^{x''}$

$y''= - 2(\frac 1 2)^{x''}$

We can rewrite that without the primes and combine the powers of 2.

$y = - 2^{1-x}$

Let's graph these and see if we're close,

Plot y= (1/4)^x, y= - (1/4)^{x}, y = - 2^{1-x}

6 0

3 years ago

4.50 to a percent form?

Degger [83]

4.50 is 450 percent
because it is greater than 1, we know it is more than 100%

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4 years ago

Read 2 more answers

Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only) A right triangl

romanna [79]

Answer:

The angle is 52 degree.

Step-by-step explanation:

length of of side, L = 8

Hypotenuse, H = 13

According to the trigonometry,

$cos y = \frac{L}{H}\\\\cos y = \frac{8}{13}\\\\cos y = 0.62\\\\y = 52^0$

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3 years ago

2/5 y + 1/5 x - 0.26- 6+ (-2)

Lina20 [59]

Answer:

Simplified

2/5y + 1/5x - 413/50

or

0.4y + 0.2 x - 8.26

Step-by-step explanation:

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3 years ago