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marshall27 [118]
3 years ago
13

The table below shows the scores on a science test.

Mathematics
1 answer:
anzhelika [568]3 years ago
6 0
The answer is A, hope this helps :]
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The temperature in minneapolis was -8 degrees F by noon the temperature has risen by 8 degrees F. What was the temperature by no
Kipish [7]
0 degrees F. -8 + 8 equals 0.
7 0
3 years ago
If Lin runs 21 laps at the same rate (1.2 minutes per lap) how long does it take her?
Firlakuza [10]

Answer:

It takes her 25.2 mintes

Step-by-step explanation:

You can just multiply 21 by 1.2 because that's how long she takes per lap and you can get 25.2

8 0
2 years ago
Read 2 more answers
Help please <br> 5x-2y=-10
Lena [83]

Answer:

5x - 2y =  - 10 \\ 5x =  - 10 + 2y  \\  x =  \frac{ - 10 + 2y}{5}  \\  \\

when y=0,-5,5,-10,10

then x=-2,-4,0,-6,2

6 0
2 years ago
What is the domain and range of <br> f(x)=2x^2+6x+2
lbvjy [14]

As is the case for any polynomial, the domain of this one is (-infinity,  +infinity).

To find the range, we need to determine the minimum value that f(x) can have.  The coefficients here are a=2, b=6 and c = 2,

The x-coordinate of the vertex is  x = -b/(2a), which here is x = -6/4 = -3/2.

Evaluate the function at x = 3/2 to find the y-coordinate of the vertex, which is also the smallest value the function can take on.  That happens to be y = -5/2, so the range is [-5/2, infinity).

3 0
3 years ago
Which functions domain consists of all real numbers except -2?
Eddi Din [679]

Answer:

option (a) f(x)= 1/x+2

Step-by-step explanation:

(a) f(x) = 1/ x+2

To find the restriction for domain , we set the denominator =0  and solve for x

x+2 =0, so x=-2

When x=-2  then denominator becomes 0 that is undefined.

So, domain is all real numbers except -2

(b) f(x)= 2x

In this function, there is no denominator or square root or log function

so there is no restriction for x, hence domain is all real numbers

(c) f(x) = 2x-2

In this function, there is no denominator or square root or log function

so there is no restriction for x, hence domain is all real numbers

f(x) = 1/ sqrt(x+2)

if we have square root in the denominator then we set the denominator >0 and solve for x. because square root of negative values are undefined

x+2>0, x>-2

Hence domain is all real numbers that are greater than -2

8 0
3 years ago
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