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Alina [70]
3 years ago
7

Which of the following choices evaluates (-x)^2 when x=-1 Answers: 1)1 2)-2 3)-1

Mathematics
1 answer:
MissTica3 years ago
7 0
(-(-1))^2
(1)^2
1 x 1
=1

Answer: 1
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Find the missing side length. Round to the nearest tenth.<br>15 cm<br>9 cm​
vazorg [7]
Using Pythagorean’s theorem
a^2 +b^2= c^2
We know
c=15
b=9
a=?
Sub that in the Pythagorean’s theorem
a^2+9^2 = 15^2
a^2 + 81 = 225
a^2= 225-81
a^2 = 144
a= square root of 144
a= 12

Therefore the answer is 12
5 0
3 years ago
27. The square of a number is 8 more than 420 minus 347. What is the<br>number?​
Stells [14]

Answer:

x=9 or -9

Step-by-step explanation:

the equation is:x^2-8=420-347

420-347=73

if x=9 then 81-8=73

and then 73=73

so x=9

hope this helps!

please mark my answer as brainliest! thanks! :)

8 0
2 years ago
Determine if the data is biased or not biased: A phone-in survey is taken by a radio station to see how many listeners enjoy jaz
madam [21]

Answer:

biased

Step-by-step explanation:

5 0
3 years ago
The sum of two integers is 8 and their product is -20.<br>What are the integers?​
emmasim [6.3K]

Answer:

The answer to your question is

x = -2 and y = 10     or   x = 10 and y = -2

Step-by-step explanation:

          x + y = 8   (1)      from (1)    x = 8 - y

         xy = - 20    (2)

       

Solve them by substitution

      (8 - y) y = - 20

      8y - y² = -20

      y² - 8y - 20 = 0

   ( y - 10) (y + 2) = 0

    y - 10 = 0              and      y + 2 = 0

   <u> y1 = 10 </u>                               <u>y2 = -2</u>

 x1 = 8 - 10                             x2 = 8 - -2

 <u>x1 = -2</u>                                  <u> x2 = 10</u>

8 0
2 years ago
What is the ansssss​
iogann1982 [59]

Answer:

8 animals

Step-by-step explanation:

7 0
3 years ago
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