1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
White raven [17]
3 years ago
9

Tia's teacher asked her to find the product of 8 and 207 in her head. Which of the following describes the best way for Tia to m

entally calculate the answer?
a. Multiply 8 by 200 and subtract 8 times 7.
b. Multiply 8 by 200 and add 8 times 7.
c. Multiply 8 by 210 and subtract 8 times 7.
Mathematics
1 answer:
Alex3 years ago
4 0
The correct answer is B
You might be interested in
please help please help please please please please please please please please please please please please please please please
7nadin3 [17]
Answer:
1) -10^3 (-10 to the power of 3)
2) r^5 (pie to the power of 5)
3) 1/2^2 + x^3 (1/2 to the power of 2 + x to the power of 3)
3 0
3 years ago
Please help me now ! Thank you
jarptica [38.1K]
First we'll do two basic steps. Step 1 is to subtract 18 from both sides. After that, divide both sides by 2 to get x^2 all by itself. Let's do those two steps now

2x^2+18 = 10
2x^2+18-18 = 10-18 <<--- step 1
2x^2 = -8
(2x^2)/2 = -8/2 <<--- step 2
x^2 = -4

At this point, it should be fairly clear there are no solutions. How can we tell? By remembering that x^2 is never negative as long as x is real. 

Using the rule that negative times negative is a positive value, it is impossible to square a real numbered value and get a negative result. 

For example
2^2 = 2*2 = 4
8^2 = 8*8 = 64
(-10)^2 = (-10)*(-10) = 100
(-14)^2 = (-14)*(-14) = 196

No matter what value we pick, the result is positive. The only exception is that 0^2 = 0 is neither positive nor negative.

So x^2 = -4 has no real solutions. Taking the square root of both sides leads to

x^2 = -4
sqrt(x^2) = sqrt(-4)
|x| = sqrt(4)*sqrt(-1)
|x| = 2*i
x = 2i or x = -2i
which are complex non-real values


5 0
3 years ago
I Do Not get this awnser
Paraphin [41]

The question is asking you which shape is the same shape as the shape displayed with the question. The shape could be bigger, smaller, flipped around, or any other different way, but it has to be the same shape.

The answer is B.

The reason why B is your answer because the shape is the same, but it's just that it is smaller. The shapes scale is just smaller, but it's still the same shape. and flipped around.

6 0
3 years ago
Are 3k3 and 8k like terms?
givi [52]

Answer:

i believe so, 3k3 is just 3k to the third power so i think theyd be like terms still

7 0
2 years ago
Please help with this ASAP!!1
d1i1m1o1n [39]

Answer:

a. OM is congruent to ON.

Step-by-step explanation:

To use the HL Theorem, you must have a congruent hypotenuse and a congruent leg. In this case, you have two congruent hypotenuses. You just need to find two congruent legs.

a. OM is congruent to ON. This says that two legs are congruent, so this is your answer.

b. LM is congruent to ML. This does not help as it is saying a segment is the same as the same segment.

c. and d. Both of these use angle measurements, which does not help with the HL Theorem.

Hope this helps!

7 0
3 years ago
Other questions:
  • PLEASE ANSWER ASAP!!!! MUST BE CORRECT FOR POINTS GIVEN!!!!! THE QUESTION IS BELOW IN THE SCREENSHOT!!!!! VERY IMPORTANT!!!!!
    8·2 answers
  • Between x = 2 and x = 3, which function has the same average rate of change as y = 2x ?
    10·1 answer
  • What ratio is represented in the table ?
    10·2 answers
  • Please help, I'm in Pre-Calc, reviewing Algebra stuff.
    5·1 answer
  • Sarah has going to work for 60 days. On 39 of those days she arrived at work before 8:30 AM. On the rest of the day she arrived
    8·1 answer
  • What is the value of 5 + 2n if n = 3/4?
    10·2 answers
  • Helpppppppppppppppppppppp
    12·2 answers
  • I need help with this question plz
    5·1 answer
  • the length of a rectangle is increased by 15% while its perpendicular height is decreased by 15%. determine, if any, the percent
    12·1 answer
  • How far will a wheel of radius 7 cm travel in two revolutions
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!