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2 years ago

How many real solutions does the equation y=12x-9x+4 have?

1 answer:

3 0

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

y-(12*x^2-9*x+4)=0

Step by step solution :Step 1 :Equation at the end of step 1 : y - (((22•3x2) - 9x) + 4) = 0 Step 2 :Equation at the end of step 2 : y - 12x2 + 9x - 4 = 0 Step 3 :Solving a Single Variable Equation :

3.1 Solve y-12x2+9x-4 = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

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Mjhs is refinishing a basketball court and decided to paint everything shown below blue. How many square feet will be painted bl

SashulF [63]

Answer:

<h2>Mjhs needs 189.25 square feet of blue paint, approximately.</h2>

Step-by-step explanation:

As you can observe in the image attached, the basketball court is a composite figure formed by a rectangle and half of a circle.

The rectangle has dimensions of 10 feet by 15 feet. The circle has a diameter of 10 feet.

The expression of this composite area would be

$A= w \times l + \frac{\pi (\frac{l}{2} )^{2} }{2}$

Where $w = 15 \ ft$ and $l = 10 \ ft$ . Replacing these values, we have

$A= 15 \times 10 + \frac{3.14 (\frac{10}{2} )^{2} }{2}\\ A=150 + \frac{3.14 \times 25}{2}=150+39.25 \\ A \approx 189.25 \ ft^{2}$

Therefore, Mjhs needs 189.25 square feet of blue paint, approximately.

8 0

3 years ago

3(5b-1)=5 solve for b 4(3y-1)=20 solve for y

Gnom [1K]

3(5b-1)=5
Get rid of the brackets
15b-3=5
add 3 to both sides of the equation
15b=8
divide both sides of the equation by 15
b=0.53

4(3y-1)=20
12y-4=20
12y=24
y=0.5

7 0

2 years ago

Help plzzzzzzzzzzzzzzzzzzzzz

andreyandreev [35.5K]

Answer:

20??? wow I feel stupid I forgot how to do everything

4 0

2 years ago

Please Help! (Math)(tanβ)

sertanlavr [38]

Answer:

Find the missing side first.

x = $\sqrt{12^2 - 7^2} = \sqrt{144 - 49} = \sqrt{ 95}$

1) tangent = opposite leg / adjacent leg

tanβ = √95/7
Correct choice is B

2) sine = opposite leg / hypotenuse

sinβ = √95/12
Correct choice is D

7 0

2 years ago

4. Use the distributive property to simplify : 12(2−6).

olasank [31]

Answer:

-48

Step-by-step explanation:

12 x 2=24

12 x 6= 72

24 - 72 = -48

7 0

2 years ago