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RSB [31]
4 years ago
12

What does this mean?

Mathematics
1 answer:
I am Lyosha [343]4 years ago
7 0
0 is less than t is less than or equal to 10
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Help please I’ll give you 25 points
Ira Lisetskai [31]

Answer: Choice D) y = \pm \sqrt{x+5}

The steps to finding the inverse will have us swap x and y. Afterward, we solve for y

y = x^2 - 5 \\\\x = y^2 - 5 \\\\x+5 = y^2 \\\\y^2 = x+5 \\\\y = \pm \sqrt{x+5} \\\\

------------------------------

Extra info:

The inverse relation is not a function because of the plus minus. For instance, plugging x = 4 into y = \pm \sqrt{x+5} leads to y = -3 and y = 3 simultaneously. You would have to apply a domain restriction on y = x^2-5 to make it a one-to-one function, to make the inverse a function. One possible domain restriction is x > 0 which would lead to the inverse function y = \sqrt{x+5}

4 0
3 years ago
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places. The cosine of the comp
taurus [48]

Answer:

B) 0.85

Step-by-step explanation:

By definition, complementary angles add to 90 degrees.

The given angle 58 degrees is complementary to 90-58 = 32 degrees. The two angles 58 and 32 add to 90.

Therefore, cos(32) = 0.848 = 0.85

4 0
3 years ago
Read 2 more answers
Help me pleaseeeee!!!!
OLga [1]

Answer:

2xyzx^{2} \sqrt[ 0]{xyz}

Step-by-step explanation:

simplify the radical by breaking the radicand up into a product of know factors

8 0
3 years ago
Jimmy cn run 3.5 miles in 20 minutes. How far can he run in one hour and ten minutes?
vladimir2022 [97]

Answer: 12.25miles.

Step-by-step explanation:

This is a simple proportion.

                       20 miles   = 3.5miles

      ∴                1 mile     = 3.5/20

      ∴  1hour 10minutes  which is equivalent to 70minutes will be

                                        =  (3.5/20 x ⁷⁰/₁ ) miles

                                        = 12.25miles

7 0
4 years ago
What is the remainder when you divide 2x3 + 4x2 - x + 3 by x + 2?
velikii [3]
<h3><u>The quotient is 2x^2 - 1 + (5/(x + 2))</u></h3><h3><u>The remainder is 5.</u></h3>

7 0
3 years ago
Read 2 more answers
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