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svet-max [94.6K]
3 years ago
13

Work out the answers to:

Mathematics
1 answer:
const2013 [10]3 years ago
3 0

Answer:

A=-4 B=-8 C=8

Step-by-step explanation:

If you need to check these answers multiply the answer by the second number.

A) -4x-3=12  A negative times a negative is always positive.

B)-8x9=-72 A negative times a positive is a negative.

C) 8x-2=-16 A negative times a positive is a negative.

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Which expression is not equivalent to?​
grigory [225]

C would be the answer. When you simplify the equations C does not contain a radical.

3 0
3 years ago
3. A driver's path when diving off of a platform is given by h(t)=-5t^2+10t+20, where h(t) is the distance above water, in feet,
agasfer [191]

Answer:

3a.=20ft  3b.=1 second 3c.=3.25seconds

Step-by-step explanation:

Hello, Courtney!

h(t)=-5t^2+10t+20

20 would be the height so 3.a would be 20ft

3b.  25=-5t^2+10t+20

-5t^2+10t-5 then divide by greatest factor the answer would 1 second

3c.    0=-5t^2+10t+20 divide by greatest factor and would get 3.25 and -1.25 but can't have negative so the answer is 3.25.

I hope this helps

best you know who!

5 0
3 years ago
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP!!!!!!!
Alchen [17]
F(x) = x + 1
          ------
            b

g(x) = cx - d


flip values of x and y in each equation, then solve for y:


x = y + a
      -------
         b

y = a - bx


``````````````````````````````````````````````````````````

x = cy - d

y = x + d
      -------
         c
3 0
3 years ago
Read 2 more answers
Hey! please help i’ll give brainliest
erma4kov [3.2K]

Answer:

I think A is the answer

hope this helps

have a good day :)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The sum of two numbers is 5.036. one number has a 4 in the tenths place and 7 in the thousandths place. The other number has a 1
elena55 [62]
<span>Find the two numbers that has the sum of 5.036
First number has a 4 in the tenths place and 7 in the thousands
=> x.4x7
The other number has 1 in the ones place and 2 in the hundredths place
=> 1.x2x
=> x.4x7 + 1.x2x = 5.036
=> x.4x7 + 1.x2x = notice that the thousandths place is 7, add 9 to make it 16.
=> x.4x7 + 1.x26 = carry 1, then in hundredths place 2 + 1 + x, find the number to make it 3, since it’s already 3 x = 0
=> x.407 + 1.x29, in tenths place, notice that we already have 4, add 6 to make it 10, then carry 1 to ones place
=> x.407 + 1.629, Now, in ones place, we have 1 + 1 + x, find a number to make it 5. Add 3
=> 3.407 + 1.629 = 5.036</span>



7 0
3 years ago
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