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Airida [17]
3 years ago
12

What mistake did she make while solving the problem?

Mathematics
1 answer:
umka2103 [35]3 years ago
6 0

Answer:

Ms, Erickson added 6x^3 plus -3x^2 and these terms have different exponents.l

Step-by-step explanation:

You might be interested in
WIll give brainliest Use the information given to answer the question.
MaRussiya [10]

Answer:

x²-12x+36

Step-by-step explanation:

an expression in the form (a-b)² is expanded to the form a²-2ab+b²

you can also expand it to (x-6)×(x-6) then multiply the first term by the first the outer term by the outer term the inner term by the inner term and the last term by the last term (foil)

the first terms are x and x = x² the outer terms are x and -6 = -6x the inner terms are also x and -6 = -6x

the last terms are 6 and 6 = 36

adding all the four products =

x²-12x+36

7 0
2 years ago
Evaluate 3x-2y; if x=7 and y=3
Zarrin [17]

Answer:

15

Step-by-step explanation:

3x - 2y = ?

3(7) - 2(3) = ?

21 - 6 = ?

= 15

All you have to do is substitute the given values & follow the order of operations! Best of luck.

3 0
3 years ago
Write 7,004,000 in scientific notation.
MAXImum [283]
<span>7,004,000 in scientific notation.
=</span>7.004 x 10^6
as 7 is the first non zero digit 
so decimal jumbed 6 numbers from right to left and exponent will be positive
option A is correct
hopr this helps
6 0
3 years ago
LCM of 294 and 1260<br><br>​
Alex Ar [27]

Answer:

8820

Step-by-step explanation:

Prime factorization of 294,

→ 2 × 3 × 7 × 7

Prime factorization of 1260,

→ 2 × 2 × 3 × 3 × 5 × 7

LCM of 294 and 1260,

→ 2 × 2 × 3 × 3 × 5 × 7 × 7

→ 8820

Hence, the LCM is 8820.

4 0
1 year ago
Tanya opened a savings account with a deposit of 550.she deposited 450 and withdrew 120.
Rasek [7]
550+450-120+720=1,600
720/1,600*100%
=720/160%
=45%
therefore, 45% of new balance
5 0
3 years ago
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