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3 years ago

98 POINTS AND BRAINLIEST

Mathematics

2 answers:

Lelechka [254]3 years ago

6 0

Answer:

y=-4x^2+9x+9

Step-by-step explanation:

1st: we assume the equation will be in standard form (ax^2+bx+c)

2nd: since the graph passes through (0,9) then the y-intercept is @(0,9) or your c is 9.

3rd: since it passes through (2,11) then 11=4a+2b+c

4th: since it also passes through (3,0) then 0=9a+3b+c

* so we have c=9, 11= 4a+2b+c, and 0= 9a+3b+c*

So a=-4, b=9, c=9

plug in the numbers and you get y= 4x^2+9x+9

Hope this helps you. :3

Ilia_Sergeevich [38]3 years ago

4 0

Answer:.

Step-by-step explanation:

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your baseball team has won 6 games and lost 4 games. if the team does not lose any more games, how many games must the team win

puteri [66]

Answer:

The team must win 2 games to have a win : loss ratio o 2.

Step-by-step explanation:

Ratio win : loss, r:

r = total wins / total losses

Total wins, Tw:

Call n the number of new wins:

Tw =number of wins until so far + number of new win = 6 + n

Total losses, Tl:

Tl = number of losses so far + number of new losses = 4 + 0 = 4

Target ratio:

r = 2 ⇒ Tw / Tl = (6 + n) / 4 = 2

Solve for n:

(6 + n ) = 4 × 2
6 + n = 8
n = 8 - 6
n = 2

Hence, the team must win 6 more games.

Verification: (6 + 2 ) / 4 = 8 / 4 = 2, which is the target ratio.

8 0

3 years ago

Sofia is customizing shirts for the debate team. She can choose from 4 styles and 7 colors. How many different shirts is it poss

shusha [124]

Since there are 7 options for every 4 styles, you take 7x4x4
There are 112 different shirts possible for Sofia to customize

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3 years ago

Polly bought a cracker for $7 and then bought a parrot for $2. By how much did Polly's account change after her transactions?

marysya [2.9K]

Answer:

$Changes = -\$9$

Step-by-step explanation:

Given

$Cracker = \$7$

$Parrot = \$2$

Required

Determine the changes in the account

First, we need to determine the total amount spent;

$Total = Cracker + Parrot$

$Total = \$7 + \$2$

$Total = \$9$

Hence, the changes in her account is a debit of $9 i.e. -$9

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3 years ago

In the figure above, PQRS is a circle. If PQT and SRT are straight lines, find the value of x.

Elena L [17]

Given:

PQRS is a circle, PQT and SRT are straight lines.

To find:

The value of x.

Solution:

Since PQRS is a circle, PQT and SRT are straight lines, therefore, PQRS isa cyclic quadrilateral.

We know that, sum of opposite angles of a cyclic quadrilateral is 180 degrees.

$m\angle SPQ+m\angle QRS=180^\circ$

$81^\circ+m\angle QRS=180^\circ$

$m\angle QRS=180^\circ-81^\circ$

$m\angle QRS=99^\circ$

Now, SRT is a straight line.

$m\angle QRT+m\angle QRS=180^\circ$ (Linear pair)

$m\angle QRT+99^\circ=180^\circ$

$m\angle QRT=180^\circ-99^\circ$

$m\angle QRT=81^\circ$ ...(i)

According to the Exterior angle theorem, in a triangle the measure of an exterior angle is equal the sum of the opposite interior angles.

Using exterior angle theorem in triangle QRT, we get

$m\angle PQR=m\angle QRT+m\angle QTR$

$x=81^\circ+22^\circ$

$x=103^\circ$

Therefore, the value of x is 103 degrees.

4 0

3 years ago

Whats 9387c x 732l +99 *DO NOT REPORT TY!*

IRISSAK [1]

Answer:

You did not even start the meeting them you want us to join . Silly

Step-by-step explanation:

6871383

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3 years ago

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