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Mandarinka [93]
3 years ago
12

HELP PLZ I NEED HELP

Mathematics
1 answer:
Crazy boy [7]3 years ago
5 0
For some reason I can’t see the picture sorry
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What is the value of x in this figure?
slega [8]
Check the picture below.

\bf 10\cdot \stackrel{cos(30^o)}{\cfrac{\sqrt{3}}{2}}=x\implies 5\sqrt{3}=x

5 0
3 years ago
If I had 2 watermelons and 4 grapes. How many cherries do I have
Mandarinka [93]
You have zero cherries.
7 0
3 years ago
Help!! Solving absolute value inequalities
goblinko [34]

Answer:

48. x \geq -7 or x \leq 31

51. x \leq 13 or x \geq 3

54. x < \frac{5}{2} or x > \frac{-15}{2}

57. x < \frac{18}{7} or x > -4

Step-by-step explanation:

48. | 12 - x | \leq 19

-There are two equations:

Equation 1:

12 - x \leq 19

      or

Equation 2:

12 - x \geq -19

Solving equation 1:

12 - x \leq 19

12- 12 - x \leq 19 - 12

-x \leq 7

\frac{-x}{-1} \leq \frac{7}{-1}

x \geq -7 (Inequality sign changed, because of dividing by a negative number)

-Solving equation 2:

12 - x \geq -19

12 - 12  - x \geq -19 - 12

-x \geq -31

\frac{-x}{-1} \geq \frac{-31}{-1}

x \leq 31 (Inequality sign changed, because of dividing by a negative number)

-Answers:

x \geq -7 or x \leq 31

51. | x - 8 | \leq 5

-There are two equations:

Equation 1:

x - 8 \leq 5

    or

Equation 2:

x - 8 \geq - 5

-Solving equation 1:

x - 8 \leq 5

x - 8 + 8 \leq 5 + 8

x \leq 13

-Solving equation 2:

x - 8 \geq - 5

x - 8 + 8 \geq - 5 + 8

x \geq 3

Answers:

x \leq 13 or x \geq 3

54. | 4x + 10 | < 20

-There are two equations:

Equation 1:

4x + 10 < 20

     or

Equation 2:

4x + 10 > -20

-Solving equation 1:

4x + 10 < 20

4x + 10 - 10 < 20 - 10

4x < 10

\frac{4x}{4} < \frac{10}{4}

x < \frac{5}{2}

-Solving equation 2:

4x + 10 > -20

4x + 10 - 10 > -20 - 10

4x > -30

\frac{4x}{4} > \frac{-30}{4}

x > \frac{-15}{2}

-Answers:

x < \frac{5}{2} or x > \frac{-15}{2}

57. | 7x + 5 | < 23

-There are two equations:

Equation 1:

7x + 5 < 23

     or

Equation 2:

7x + 5 > -23

-Solving equation 1:

7x + 5 < 23

7x + 5 - 5 < 23 - 5

7x < 18

\frac{7x}{7} < \frac{18}{7}

x < \frac{18}{7}

Solving equation 2:

7x + 5 > -23

7x + 5 - 5  > -23 - 5

7x > -28

\frac{7x}{7} > \frac{-28}{7}

x > -4

Answers:

x < \frac{18}{7} or x > -4

And we are finished.

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5 0
3 years ago
At a constant rate of flow, it takes 20 minutes to fill a swimming pool if a large hose is used and 30 minutes if a small hose i
Paha777 [63]

Answer: 12 minutes

Step-by-step explanation:

This is a standard Work Formula question (2 or more 'entities' that work on a task together). When there are just 2 entities and there are no 'twists' to the question, we can use the Work Formula to get to the correct answer.

Work = (A)(B)/(A+B) where A and B are the individual times needed to complete the task.

We're told that two hoses take 20 minutes and 30 minutes, respectively, to fill a pool. We're asked how long it takes the two hoses, working together, to fill the pool.

(20)(30)/(20+30) = 600/50 = 12 minutes to fill the pool.

3 0
3 years ago
What is a width of a rectangular prism with a length of 13 ft , vouime of 11,232 cubic feet, and height of 36 ft.?
Ganezh [65]
To get the volume of a rectangular prism, you multiply the base x's the height by the , so you would divide by 11,232 by 13 which is 864. Then you divide that by 36 to get 24, so the width would be 24.

I hope this helps!
6 0
3 years ago
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