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lidiya [134]
2 years ago
15

Translate the phrase into an inequality: Seven plus a number x is at most twenty

Mathematics
1 answer:
Len [333]2 years ago
3 0

At most means less than or equal to:

7 + x ≤ 20

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Write 0.003 as the product of a whole number and a power of 10
Arte-miy333 [17]

3 × 10^{-3}

expressing as a whole number, using the digits available, we obtain

3

Now consider the position of the decimal point in the original 0.003

To get it back to where it should be we require to move the decimal point 3 places to the left , denoted by a negative exponent

0.003 = 3 ×  10^{-3}


8 0
3 years ago
Solve 2^3x=172 Use logarithmic please
I am Lyosha [343]
2^3x = 172
3x log 2 = log 172
3x = 7.4263
x = 2.475

i am a mathematics teacher. if anything to ask please pm me
4 0
3 years ago
Which of the following values is a solution for the inequality statement?
sertanlavr [38]
Wouldn't it be zero? because only 0 is less than 2 in this case

7 0
3 years ago
True or false? The quadratic equation 10p2 - 5p = -8 has one solution.
pav-90 [236]

Answer: False

=============================================

Explanation:

I'll use x in place of p.

The original equation 10x^2-5x = -8 becomes 10x^2-5x+8 = 0 after moving everything to one side.

Compare this to ax^2+bx+c = 0

We have

  • a = 10
  • b = -5
  • c = 8

Plug those three values into the discriminant formula below

d = b^2 - 4ac

d = (-5)^2 - 4(10)(8)

d = 25 - 40*8

d = 25 - 320

d = -295

The discriminant is negative, which means we have no real solutions. If your teacher has covered complex or imaginary numbers, then you would say that the quadratic has 2 complex roots. If your teacher hasn't covered this topic yet, then you'd simply say "no real solutions".

Either way, this quadratic doesn't have exactly one solution. That only occurs when d = 0. Therefore, the original statement is false.

6 0
2 years ago
What does the 2 represent in 2/4
scZoUnD [109]
It represents 1/2, 50% or half of the equation.
it’s also the numerator, tells how many pieces you have from the whole.
8 0
1 year ago
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