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Firlakuza [10]
2 years ago
13

Help meeeeee with this! No links!

Mathematics
1 answer:
Gelneren [198K]2 years ago
3 0

Answer:

There is a mistake in Step 2. Maya distributed 3(x-10) as 3x+30, which is false. The correct step is: 6x+12 = 3x-30

Then solve for x

The answer is B. Maya made a mistake between Step 1 and Step 2 because she did not correctly distribute 3  to (x-10).

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AC = 64,<br> AB = 7x + 8, and<br> BC = 3x + 6,<br> Find BC.
iVinArrow [24]

Answer:

21

Step-by-step explanation:

  • AC = 64
  • AB = 7x + 8
  • BC = 3x + 6

<u>Since AC = AB + BC</u>

  • 7x + 8 + 3x + 6 = 64
  • 10x + 14 = 64
  • 10x = 50
  • x = 50/10
  • x = 5

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

BC = 3x + 6 = 3*5 + 6 = 21

6 0
3 years ago
Because Helen was prepared to pay cash for a yellow car with a marked price of $9200 she was given a discount of $1012 what perc
Liula [17]

Answer:

11%

Step-by-step explanation:

The percentage of the discount is 1012/9200 x 100 = 11%

3 0
3 years ago
P(x) is a polynomial with integer coefficients and p(-3) = 0.
natka813 [3]

Answer:

x + 3 is a factor of the polynomial.

Step-by-step explanation:

We have been given that p(x) is a polynomial with integer coefficient.

Also p(-3)=0

Since, p(-3) =0, hence, we can say that -3 is a zero of the polynomial.

Now, we apply factor theorem.

Factor Theorem: If 'a' is a zero of a function f(x) then (x-a) must be a factor of the function f(x).

Applying this theorem, we can say that (x+3) must be a factor of the polynomial.

Hence, first statement must be true.

5 0
3 years ago
Read 2 more answers
The temperature is -3 F at 7:00 am During the next 4 hours the temperature increases 21 F. What is the temperature at 11:00am ?
telo118 [61]
Now what you want to do is 21 + (-3). Since this is the same as saying 21 - 3, the answer is 18. Therefore, the answer is 18°F.
4 0
3 years ago
Prove whether the following inferences are valid using the long or short truth table method. If they are invalid, give the count
bezimeni [28]

Answer:

6

Step-by-step explanation:

7 0
2 years ago
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