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erica [24]
3 years ago
13

Find the value of the variable. Round decimal answers to the nearest tenth. x =

Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Answer:

15

Step-by-step explanation:

The hypotenuse of a triangle is a² + b² = c².

12² + 9² = c²

144 + 81 = 225

√225 = 15

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A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park is 280 yards long. What is the area of
jekas [21]

Answer:

area=56000 yards²

Step-by-step explanation:

first divide 280 by 7 and get 40

scale factor is 40

5x40=200

200x280=56000

area=56000 yards²

7 0
3 years ago
Which of the following expressions are equivalent to - -13/12
RUDIKE [14]

If is -(-13/12) then A. -13/-12

If is -13/12 then B. 13/-12

-\dfrac{-13}{12}=\dfrac{-13}{-12}=\dfrac{13}{12}\\\\\dfrac{-13}{12}=-\dfrac{13}{12}=\dfrac{13}{-12}

6 0
1 year ago
Urgent please!!! I really don’t understand it, tysm to anyone who can answer thissss :))))
Tomtit [17]

Given:

The frequency distribution table.

To find:

The mean average score on a test.

Solution:

The frequency distribution table is

Marks (x_i)                   Frequency(f_i)                  f_ix_i

     x                                     a                               xa

     y                                     b                               yb

     z                                     c                               zc

  Sum                              a+b+c                          xa+yb+zc

Now, the mean average score on the test is

Mean=\dfrac{\sum f_ix_i}{\sum f_i}

Mean=\dfrac{xa+yb+zc}{a+b+c}

Therefore, the mean average score on the test is \dfrac{xa+yb+zc}{a+b+c}.

3 0
2 years ago
Write the equation of the line in standard form <br><br> 4xy + 2y = 9
padilas [110]

Answer: I think the answer is the same thing I can’t show a Step-by-step explanation because Math-way requires a premium to show a step-by-step explanation, anyway the answer is 4xy + 2y = 9, I’m sorry about that. :(

Step-by-step explanation: Well anyway, The standard form of a linear equation is Ax+By=C.

6 0
2 years ago
If you drive 130 miles and it takes you Two hours and six minutes and then you drive back on the same route but it takes you two
Vilka [71]
You can gain it by taking an hr and thirty min trip and on the way back takes hr and forty five min. That is how you gain your precious time back!!!✍️☃️⚽️
4 0
3 years ago
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