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-Dominant- [34]
3 years ago
9

Evaluate x² - 7xy for x = 7 and y = 3.

Mathematics
1 answer:
Alika [10]3 years ago
6 0
7^2 = 7x • 3
49 - 21x
-21x + 49
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PLEASEEEEEE HELPPPPPPPPP
AlekseyPX
<h3>Solution:</h3>

5x + 3 =  - 9 \\  =  > 5x =  - 9 - 3 \\  =  > 5x =  - 12 \\  =  > x =  \frac{ - 12}{5}  \\  =  > x =  - 2 \frac{2}{5}

<h3>Answer:</h3>

Option A .

- 2 \frac{2}{5}

7 0
3 years ago
What is the interquartile range of the data set?
kaheart [24]
The interquartile range of the data set would be 7! Hope this helps! :D
8 0
3 years ago
The rectangle is plotted on a coordinate plane. The four vertices are located at (-5, 5), (-5, -3), (2, 5) and (2, -3).
Andrei [34K]

Answer:

56 sq units

Step-by-step explanation:

Lets begin by finding the length of the <em>x</em> axis. We find this by subtracting the smallest number from the larger number. In our case, this is 2 - (-5) or 7.

Then we can find the length of the <em>y </em> axis.<em> </em>Similar to the <em>x </em>axis, we subtract. 5 - (-3) is 8.

We calculate area by multiplying length by width, or x axis by y axis. 7 x 8 = 56. Therefore, our final answer is 56 sq units.

7 0
3 years ago
Please help!! Will give brainliest if it’s the correct answer
pantera1 [17]

Answer:

It's A I think

Step-by-step explanation:

hope this helps

8 0
2 years ago
Read 2 more answers
Find the height of the prism if the length is 9 inches, the width is 5 inches, and the volume of the prism is 315 cubic inches.
trasher [3.6K]

Answer:

Height of prism = 7 inches

Step-by-step explanation:

Let h be the height of prism.

Hence,

h =  \frac{vol \: of \: prism}{l \times w}  \\  \\  =  \frac{315}{9 \times 5}  \\  \\  =  \frac{315}{45}  \\   \\ h= 7 \: inches

5 0
3 years ago
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