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Sati [7]
3 years ago
9

Evaluate the following expression using the values given:

Mathematics
2 answers:
MakcuM [25]3 years ago
4 0

Answer:

18

Step-by-step explanation:

  • -3a²-b³+3c²-2b³
  • -3(2)²-(-1)³+3(3)²-2(-1)³
  • -3(4)-(-1)+3(9)-2(-1)
  • -12+1+27+2
  • -11+27+2
  • 16+2
  • 18
riadik2000 [5.3K]3 years ago
3 0

Answer:

The answer is 15.

Step-by-step explanation:

-3(2)2-(-1)3+3(3)2-2(-1)3

  -12  +  3  +  18  +   6

       -9       +       24

                = 15

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02.06)If 1 pint is equal to 2 cups, then 5 pints would equal ___ cups.
lawyer [7]
If 1 pint equals 2 cups then 5 pints equals 10 cups
Because 5 times 2 equals 10. Hope this helps.
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3 years ago
The main difference between a secured loan and an unsecured loan is that the secured loan what?
Alex Ar [27]
Includes a pledge of collateral
8 0
3 years ago
jamal completed his math homework in 2/3 of an hour and his reading homework in 3/5 of an hour. How much time did it take him to
Assoli18 [71]

Answer:

Step-by-step explanation: We have to add how much time it took him to do all of his homework. To do this, we have to add 2/3 and 3/5.

First, we have to find a LCM between 3 and 5.

The LCM between those numbers are 15.

Next we find out what number to multiply 3 by to get 15, we multiply it by 5.

2 * 5 = 10

3 * 5 = 15

Next we find out what number to multiply 5 by to get 15, we multiply it by 3.

3 * 3 = 9

5 * 3 = 15

10/15+9/15=19/15

We are left off with 1 4/15

So it took him 1 hour and 4/15 minutes to do his homework.

3 0
3 years ago
I really need help quick
Natali [406]

Answer:

\sf x=2+\sqrt{6},\:x=2-\sqrt{6}

Explanation:

\sf y = x^2 -4x

given that y = 2

\sf x^2 -4x = 2

\sf x^2 -4x -2 = 0

using quadratic formula:

\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a}  \    \ \ when  \   ax^2 + bx + c = 0

\rightarrow \sf x_{1,\:2}=\dfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:1\cdot \left(-2\right)}}{2\cdot \:1}

\rightarrow \sf x_1=\dfrac{-\left(-4\right)+2\sqrt{6}}{2\cdot \:1},\:x_2=\dfrac{-\left(-4\right)-2\sqrt{6}}{2\cdot \:1}

\rightarrow \sf x=2+\sqrt{6},\:x=2-\sqrt{6}

in decimals:

\rightarrow \sf x=4.45 , \ -0.45

5 0
2 years ago
Evelina took 50 people fishing each day last week. The table shows the number of fish the group caught each day.
Alisiya [41]

Answer:

152

Step-by-step explanation:

The amount of fish caught is at a constant decreasing rate of 17. 203-186=17, 186-169=17, 169-17=152. So all you have to do is subtract the constant rate from the last known number.


8 0
3 years ago
Read 2 more answers
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