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3 years ago

Which statement makes the open sentence 12+3x=30

Mathematics

1 answer:

Sergio [31]3 years ago

6 0

12 + 3x = 30 // what is x?
3x = 18
x = 6

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Solve the equation on the interval [0,2pi] 5sec(x)+7=-3

vovangra [49]

Answer:

Hello,

$x\in \bigg\{\dfrac{2\pi}{3} ,\dfrac{4\pi}{3}\bigg\}\\$

Step-by-step explanation:

$5*sec(x)+7=-3\\\\sec(x)=\dfrac{-10}{5} \\\\\dfrac{1}{cos(x)} =-2\\\\cos(x)=-\dfrac{1}{2} \\\\x=120^o\ or\ x=240^o\\$

8 0

2 years ago

Read 2 more answers

Given: △ABC, AB=5√2 m∠A=45°, m∠C=30° Find: BC and AC

Naddik [55]

Answer:

BC = 10, AC= approximately 13.66 OR 5+5 √3

Step-by-step explanation:

Law of Sines

5 0

3 years ago

What is the solution for the equation?<br> a+8/3=2/3

Readme [11.4K]

A+8/3 = 2/3
Or, (3a+8)/3 = 2/3 [taking LCM]
Or, 3a+8 = 2 [3 in both denominators are cancelled]
Or, 3a = 2-8
Or, a = -6/3
.•. a = -2,,

3 0

3 years ago

Which sentence can be represented by the equation<br> 3/5m=15

NeTakaya

Three- Fifth of m is equal to 15

Step-by-step explanation:

Step 1:

Here the expression given is

3/5 m = 15

Step 2:

To express the equation in terms of sentence,

THREE-FIFTH OF M IS EQUAL TO 15

6 0

2 years ago

Winning the jackpot in a particular lottery requires that you select the correct five numbers between 1 and 34 and, in a separa

Marina CMI [18]

<h3>The probability of winning the lottery is $\frac{1}{10,295,472}$ </h3>

Step-by-step explanation:

Here, the total numbers in the jackpot = 1 to 34

Now, the number that needed to be drawn = 5

The number of ways , 5 number can be drawn from total 34 numbers :

$^{34} C _5 = \frac{34!}{5!(34-5)!} = 278,256$

Also, in separate draw, the correct number drawn = 1

So, the number of ways that can be done = 30 C 5 x 37

= 278,256 x 37 = 10,295,472

Now, P(win) = $\frac{\textrm{Total favorable attempts}}{\textrm{Total attempts}} = \frac{1}{10,295,472}$

Hence, the probability of winning the lottery is $\frac{1}{10,295,472}$

6 0

3 years ago