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3 years ago

Can someone explain this question?I know the answer is t=0 but don't know why:(

Mathematics

2 answers:

irina [24]3 years ago

6 0

Uh, I think this is so because the quadratic graph is symmetrical about the y-axis. And the equation of line of symmetry usually is x is equals to something since the line of symmetry is a vertical line. Hence the equation of line of symmetry in this case is t=0 because the line is at the y axis where the value of x axis is 0

Dafna1 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Your axis of symmetry is always going to be related to the x-point of your vertex. In this case, it looks like the vertex of the parabola is (0, 9). The vertex is the highest (or lowest) point of the parabola and is even on both sides. This means that, in order to be symmetrical, you would need to divide this parabola down "0."

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There are 16 juniors and 8 seniors in the Chess Club. If the club members decide to send 9 juniors to a tournament, how many dif

Licemer1 [7]

Answer:

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4 years ago

Question : A square game board is divided into smaller squares, each with sides one-ninth the length of the sides of the board.

bagirrra123 [75]

Answer:

Therefore the game board is divided into 81 smaller squares.

Step-by-step explanation:

Given that, there is a square game.

Consider x be length of one side the square.

The volume of the square is = side ×side

=x² square units

Since the length of side of smaller square is one-ninth of the game board.

Then one side length of the smaller square is $\frac19x$ units.

The area of a smaller square is $=(\frac19x)\times (\frac19x)$

$=\frac{1}{81}x^2$

Let a number of square is formed from the game board.

a ×The area of one smaller square= The area of game board.

According to the problem,

$a\times (\frac{1}{81}x^2)=x^2$

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Therefore the game board is divided into 81 smaller squares.

4 0

3 years ago

Monica does not initially put any money into the account but plans to deposit $153.46 per week.

Dafna1 [17]

M=153.46w, L=128.90+127.68w they will be equal when M=L so

153.46w=128.90+127.68w subtract 127.68 from both sides...

25.78w=128.90 divide both sides by 25.78

w=5

So after five weeks they have deposited the same amount of money.

Each of them has deposited <span>$153.46*5=$767.30, so the account has twice that amount.

Thus the total amount in the account is 767.30*2=$1534.60</span>

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3 years ago

Read 2 more answers

Find product of (5 x 10⁶) and (5 x 10⁷) ? Write your final answer in scientific notation.

oksian1 [2.3K]

Answer:

$(5 x 10⁶)× (5 x 10⁷)$