3 years ago

Solve the quadratic function by completing the square. What are the missing pieces in the steps?

Mathematics

1 answer:

valina [46]3 years ago

5 0

1. 50

2. 3

3. -8

Hope this helps if you have any questions go ahead and ask ^^

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The body of a fish is 4 times the length of

tangare [24]

Answer:

Head=3cm

Body=12cm

Tail=5cm

Step-by-step explanation:

H= head

B=body

T=tail

B =4h

T=2+h

Total length= 20cm

20cm = b+t+h

20cm= 4h+(2+h)+h

20cm= 6h+2

18cm=6h

3cm=h

Body 4(3)=12

Tail= 2+3= 5

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3 years ago

Determine the ordered pair that satisfies the equation, 4x + 8y = 0.

mezya [45]

The answer would be
X=-2y

Move all the terms that don't contain x to the right side and solve.

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3 years ago

Divide (x^2+9x+19)÷(x+5)

gayaneshka [121]

Since this can’t be factored easily, you have to use synthetic division. This makes the answer x+4+(-1/x+5)

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4 years ago

You are giving a rectangle with dimensions of: length = 60 inches and width = 4j. The perimeter of the rectangle is 400 inches.

Illusion [34]

Answer:

perimeter is sum of all four sides; two of which are '4j' and other two are 60 inches each

Step-by-step explanation:

P= 2(4j) + 2(60)

We know perimeter is 400 inches

400 = 8j + 120

8j = 280

j = 35

4 0

3 years ago

Given that tan θ= -65/72 and that angle θ terminates in quadrant II, then what is the value of cos θ?

adoni [48]

Answer:

cosθ = $-\frac{72}{97}$

Step-by-step explanation:

tanθ = -(65/72)

If it is in the 2nd quadrant, this means that y is positive but x is negative

tanθ= opposite/adjacent or (y/x)

tanθ= $\frac{65}{-72}$

We know that the adjacent value = -72 and the opposite value = 65

The hypotenuse can be get by the following

$\sqrt{(65)^2+(-72)^2} = 97$

cosθ is just adjacent/hypotenuse

Our adjacent value is -72

Our hypotenuse is 97, therefore

cosθ = $-\frac{72}{97}$

7 0

3 years ago