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Lorico [155]
3 years ago
15

Multiply the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow

ers of x. (5x2 - 7)(5x2 + 7)
Mathematics
2 answers:
GuDViN [60]3 years ago
5 0

Answer:25x^4 - 49

Step-by-step explanation:

5x^2 - 7)(5x^2 + 7)

(5x^2)^2 - 7^2

25x^4 - 49

Fynjy0 [20]3 years ago
3 0
(5x^2 - 7)(5x^2 + 7)
(5x^2)^2 - 7^2
25x^4 - 49

Answer:
25x^4 - 49

Hope this helps.
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tamaranim1 [39]

Answer:

only D

Step-by-step explanation:

8 0
3 years ago
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an astronomical unit is about 9.3•10^7 miles. Mercury is about 0.38 astronomical units from the sun. What is mercury’s distance
eimsori [14]

Answer:

Multiply .38 * 9.3 x 10^7

Equals 35,340,000  miles

Step-by-step explanation:

4 0
3 years ago
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The inequality should be
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8 0
3 years ago
The mean age and median age of 6 people in a room is 40 years. a person whose age is 60 years leaves the room. question 1. if po
FromTheMoon [43]
Mean = (total of contributors) / (number of contributors)

For the 6 people in the room, you have
   40 = (total of contributors) / 6
   (total of contributors) = 6*40 = 240

A 60-year-old left the room, decreasing the total of contributors by 60.
   (new total of contributors) = (total of contributors) - 60
   (new total of contributors) = 240 - 60 = 180

Then the new mean is
   (new mean) = (new total of contributors) / (new number of contributors)
   (new mean) = 180 / 6 = 36

The mean age of the remaining 5 people is 36.
3 0
4 years ago
Kim orders catering from Midtown Dinerfor $35. She spends $5 on a large order of potato salad and the rest on turkey sandwich. E
aivan3 [116]

Answer:

Kim had bought 12 sandwiches.

Step-by-step explanation:

Given:

Amount spend at Midtown Dine = $35

Amount spend on large order of potato salad = $5

Cost of each sandwich = $2.5

We need to find the number of sandwich did Kim bought.

Solution:

Let the number of sandwich Kim bought be 'x'.

Now we know that;

Amount spend at Midtown Dine is equal to sum of Amount spend on large order of potato salad and number of sandwich Kim bought multiplied by Cost of each sandwich.

framing in equation form we get;

5+2.5x=35

Subtracting both side by 5 we get;

5+2.5x-5=35-5\\\\2.5x=30

Dividing both side by 2.5 we get;

\frac{2.5x}{2.5}=\frac{30}{2.5}\\\\x=12

Hence Kim had bought 12 sandwiches.

3 0
3 years ago
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