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2 years ago

Can someone help pls 18-3 X 2/5-1^2

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

7 0

Answer:

Step-by-step explanation:

Remember the order of operations using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). So, you get 18 - 6 / 5-1 = 12/4 = 3

Sidana [21]2 years ago

6 0

Answer: 3

Step-by-step explanation:

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PLZ HELP ME

Likurg_2 [28]

Answer:

x ≈ 14.87

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² = 10² + 11² = 100 + 121 = 221 ( take the square root of both sides )

x = $\sqrt{221}$ ≈ 14.87 ( to the nearest hundredth )

8 0

2 years ago

Solve for m<c. (Enter your answer as a whole mumber)

kupik [55]

2y + 4 + x = 90

2y + 4 + 3y + x = 180

5y + x + 4 = 180

x = 176 - 5y

2y + 4 + (176 - 5y) = 90

-3y + 180 = 90

-3y = -90

y = 30

x = 176 - 5(30)

x = 26 degrees

Hope this helps! :)

4 0

3 years ago

The time to failure (in hours) of fans in a personal computer can be modeled by an exponential distribution with . Round your an

IRISSAK [1]

Answer:

Step-by-step explanation:

Assuming the decay factor, m = 0.0005

f(x) = $1 - e^{-mx}$

f(9000) = $1 - e^{-0.0005*9000}$ = 1 - 0.0111 = 0.99

5 0

2 years ago

Can someone tell me how to do it, i have more problems like this

BigorU [14]

Answer:

$\large\boxed{\dfrac{7n}{30}=\dfrac{7}{30}n}$

Step-by-step explanation:

$\dfrac{2n}{5}+\left(-\dfrac{n}{6}\right)=\dfrac{2n}{5}-\dfrac{n}{6}$

To subtract both fractions we need a common denominator.

$LCD=(5)(6)=30$

$\dfrac{2n}{5}=\dfrac{2n\cdot6}{5\cdot6}=\dfrac{12n}{30}\\\\\dfrac{n}{6}=\dfrac{n\cdot5}{6\cdot5}=\dfrac{5n}{30}$

Therfore

$\dfrac{2n}{5}-\dfrac{n}{6}=\dfrac{12n}{30}-\dfrac{5n}{30}=\dfrac{12n-5n}{30}=\dfrac{7n}{30}=\dfrac{7}{30}n$

4 0

3 years ago

Ian is working two summer jobs, making $22 per hour tutoring and making $8 per hour landscaping. In a given week, he can work a

geniusboy [140]

Answer:

worked 4 hours tutoring = 4 hours * $25 = $100 earned

$130 needed - $100 earned = $30 needed

$30/ $10 hour babysitting = 3 hours

as for the number of hours, 4 hrs tutor + 3 hrs babysit = 7 hrs, 7 hours < 10 hours its within the requirements

Minimum # of hours babysitting = 3 hours

Step-by-step explanation:

3 0

2 years ago