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2 years ago

Combine like terms. 3y+6+2y-3-6y^2+7y^2-4

Mathematics

1 answer:

Anna35 [415]2 years ago

8 0

Y^2+5y+10
To 2 Squared go together the regular y go together and then normal go together

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Using trig how do you answer this

Aneli [31]

Answer:

62.73° or 1.09 radians

Step-by-step explanation:

SOH CAH TOA

sin = $\frac{opposite}{hypotenuse}$ , so sin (?) = $\frac{8}{9}$

this means that ? = $sin^{-1}(\frac{8}{9})$ or ? = arcsin( $\frac{8}{9}$ ), depending on what calculator you have

plugging in $sin^{-1}(\frac{8}{9})$ or arcsin( $\frac{8}{9}$ ) into calculator will get you

62.73° or 1.09 radians

use the corresponding answer depending on if the question asks for degrees or radians

3 0

2 years ago

Read 2 more answers

Please help ASAP!<br><br> what is x=-b/2a?

valina [46]

This is the formula to solve for the vertex.

Example Question:

Find the vertex of y = -0.5x^2 + 100x

-b/2a = -100/2(-0.5) = -100/-1 = 100

The x coordinate of the vertex is 100.

Best of Luck!

P.S. this is 1000th question i've answered :)

5 0

3 years ago

Name the property that is shown by the following expression (9x3)x4=9x(3x4)

o-na [289]

Answer:

factorisation

Step-by-step explanation:

6 0

2 years ago

Kate buys 12 pounds of apples each pound costs $3 if she gives the cashier two $20 billls

34kurt

12x3=36
40-36=4
Answer $4

3 0

2 years ago

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Please help!!! Ella and Margaret were at a carnival. They each got a ticket for the Ferris wheel. Ella got a snow cone, and Marg

seraphim [82]

Answer:

(B) $5.25

Step-by-step explanation:

We can create an equation to represent this problem.

Let's assume $f$ is the cost of a ferris wheel ticket, $s$ is the cost of a snow cone, and $c$ is the cost of a cotton candy.

We bought two ferris wheel tickets, one snow cone, and one cotton candy. After a discount of 6 dollars, the price was 12.75.

This makes the equation $2f + s + c - 6 = 12.75$

Since we know the value of each ferris wheel ticket and the snow cone, we can simplify our equation by substituting in these values.

$2(5) + 3.50 + c - 6 = 12.75\\\\10 + 3.50 + c - 6 = 12.75\\\\7.5 + c = 12.75$

We can now subtract 7.5 from both sides to get the value of $c$ , the cotton candy price.

$7.5 + c - 7.5 = 12.75 - 7.5\\\\c = 5.25$

So the cotton candy cost $5.25.

Hope this helped!

3 0

2 years ago

Read 2 more answers