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Vlada [557]
3 years ago
12

For number 3 I don’t rlly get it

Mathematics
1 answer:
choli [55]3 years ago
5 0

Answer:

D

Step-by-step explanation:

         :)

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If sin A= 0.8, find the positive value of cos A​
Ahat [919]

Answer:

cosA = 0.6

Step-by-step explanation:

Using the Pythagorean identity

sin²A + cos²A = 1 ( subtract sin²A from both sides )

cos²A = 1 - sin²A ( take the square root of both sides )

cosA = ± \sqrt{1-sin^2A

Since only the positive value is required , then

cosA = \sqrt{1-(0.8)^2}

         = \sqrt{1-0.64}

         = \sqrt{0.36}

         = 0.6

6 0
3 years ago
Read 2 more answers
Solve for w.<br> W + 33 = 67<br> W =
Margaret [11]

Answer:

The answer is 34, bec what you do is: 67 - 33.

7 0
3 years ago
Solving 6x²+9x-1=0 by completing the square root method produces an equation in the form of (x+h)²=k find H and K
marishachu [46]

The value of h is 9/12 and the value of k is 35/48

<h3>How to solve the equation?</h3>

The equation is given as:

6x^2 +9x - 1 = 0

Add 1 to both sides of the equations

6x^2 +9x - 1 + 1= 0 + 1

Evaluate the sum

6x^2 +9x =  1

Divide through the equation by 6

x^2 +9/6x =  1/6

Take the coefficient of x

k = 9/6

Divide by 2

k/2 = 9/12

Square both sides

(k/2)^2 = (9/12)^2

So, we add (9/12)^2 to both sides of the equation x^2 +9/6x =  1/6

x^2 +9/6x + (9/12)^2 =  1/6 + (9/12)^2

Next, we express the left-hand side as a perfect square

(x^2 + 9/12)^2 = 1/6 + (9/12)^2

The form of the equation is given as:

(x + h)^2 = k

So, we have:

h = 9/12

k = 1/6 + (9/12)^2

Simplify

k = 1/6 + (3/4)^2

Evaluate the exponent

k = 1/6 + 9/16

This gives

k = (8 + 27)/48

Evaluate

k = 35/48

Hence, the value of h is 9/12 and the value of k is 35/48

Read more about completing the square at:

brainly.com/question/4331586

#SPJ1

5 0
1 year ago
Can anyone help with this equation? PLS<br> I need this for right now!
sashaice [31]

Answer: 5^{3}

Step-by-step explanation:

3 0
3 years ago
Give to examples of units that can be used on a graph? HELP plzz 10 points
snow_lady [41]

<u>Metric:                                                           </u>

Distance: Centimeters (cm), Meters (m), Kilometers (km)

Weight: Milligrams (mg), Grams (g), Kilograms (kg)

Volume: Milliliters (mL), Liters (L)

<u>Customary:                                                   </u>

Distance: Inches (in), Feet (ft), Yards (yd), Miles (mi)  

Weight: Ounces (oz), Pounds (lbs), Tons (T)  

Volume: Cups (c), Pints (pt), Quarts (qt), Gallons (gal)

6 0
3 years ago
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