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3 years ago

Solve the system of equations 8x + 5y = 24 Y= -4x

Mathematics

2 answers:

Rainbow [258]3 years ago

8 0

Answer:

it’s 5.

Step-by-step explanation:

source: just trust me bro

marshall27 [118]3 years ago

6 0

Answer:

x = -2, y = 8

Step-by-step explanation:

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Find the exact solution using common logarithms 2^5x+3= 3^2x+1

AfilCa [17]

$2^{5x + 3} = 3^{2x + 1}$
$log_{2}(2^{5x + 3}) = log_{2}(3^{2x + 1})$
$(5x + 3)log_{2}(2) = (2x + 1)log_{2}(3)$
$5x + 3 = 1.58(2x + 1)$
$5x + 3 = 3.16x + 1.58$
$1.84x + 3 = 1.58$
$1.84x = -1.42$
$x \approx -0.77$

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4 years ago

there are 5 billiard balls in a velvet bag. three of the balls are striped and the other 2 are solid what's the probability of p

katrin [286]

$|\Omega|=5\\ |A|=3\\\\ P(A)=\dfrac{3}{5}$

4 0

3 years ago

How do you find DE, Round to nearest 10th

Sergeu [11.5K]

Answer: $DE\approx6.0$

Step-by-step explanation:

Observe in the figure given in the exercise that four right triangles are formed.

In this case you can use the following Trigonometric Identity to solve this exercise:

$cos\alpha=\frac{adjacent}{hypotenuse}$

From the figure you can identify that:

$\alpha =53\°\\\\hypotenuse=10\\\\adjacent=BE=DE$

Then, you can substitute values:

$cos(53\°)=\frac{DE}{10}$

The next step is to solve for DE in order to find its value. This is:

$10*cos(53\°)=DE\\\\DE=6.01$

Finally, rounding the result to the nearest tenth, you get that this is:

$DE\approx6.0$

7 0

3 years ago

My 4 closet friends have weekly allowance of $13, $17, $24, $30. What are the possible values of my weekly allowance if the medi

Nata [24]

Answer:

The median is 20.5

the average is 21

Step-by-step explanation:

5 0

3 years ago

Solve for s: 1/4r+4s=5

Serga [27]

Answer:

the answer is s=5/4 minus 1/16

hope this helps :D

8 0

3 years ago