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3 years ago

Can someone help on the whole page please... really need help

Mathematics

1 answer:

zepelin [54]3 years ago

4 0

Answer:

See attached

Step-by-step explanation:

The answer filled in the paper, refer to attachment

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Help me with this guys

Licemer1 [7]

Answer:

Step-by-step explanation:

Which grade you are

4 0

3 years ago

Which ordered pair is a solution of the equation -3+5y=2x+3y ?

Oksana_A [137]

Answer: x = y + −3/2

Step-by-step explanation:

Let's solve for x.

−3+5y=2x+3y

Step 1: Flip the equation.

2x+3y=5y−3

Step 2: Add -3y to both sides.

2x+3y+−3y=5y−3+−3y

2x=2y−3

Step 3: Divide both sides by 2.

2x/2 = 2y - 3/2

ANSWER: x = y + -3/2

8 0

3 years ago

Which expression is equivalent to sec^2x − 1? a. cot2x b. tan2x c. csc2x d. cos2x

Nesterboy [21]

Sec^2 x - 1 = tan^2x

Proof:
Sec^2x = 1+ tan^2x

1/cos^2x = 1 + sin^2x/cos^2x

1/cos^2x - sin^2x/cos^2x = 1
Using common denominator:
(1-sin^2x)/cos^2x = 1
sin^2x + cos^2 x = 1
cos^2 x = 1 - sin^2x
Substituting :
cos^2x/cos^2x = 1
1 = 1
Left hand side = right hand side

4 0

3 years ago

Read 2 more answers

Find the constant of proportionality k. Then write an equation for the

Nookie1986 [14]

Answer:

see explanation

Step-by-step explanation:

Given x and y are in proportion then the equation relating them is

y = kx ← k is the constant of proportion

To find k use an ordered pair from the table

Using (2, 10 ), then

10 = 2k ( divide both sides by 2 )

5 = k , thus

y = 5x ← relationship between x and y

5 0

3 years ago

Solve. Check that your answer is reasonable. Paula's painting has a perimeter of 1.22 meters. She wants to put ribbon around the

iren2701 [21]

Answer:

5 pieces

Step-by-step explanation:

Given:

Paula's painting has a perimeter of 1.22 meters.

She wants to put ribbon around the edge.

If the ribbon comes in pieces that are 25 centimeters long.

Question asked:

How many pieces of ribbon does she need to go all the way around her painting?

Solution:

Perimeter of painting = 1.22 meters

First of all we will convert it into centimeters:-

As we know:

1 meter = 100 centimeters

1.22 meters = 100 $\times$ 1.22 = 122 centimeters

Now, as given that ribbon comes in pieces of 25 cm long and total we should have 122 cm to go all the way around the painting.

Number of pieces of ribbon will be needed = $\frac{122}{25} =4.88\$

Thus, she need 5 pieces of 25 cm long ribbon to go all the way around the painting.

Note:-This is by default understood that few length of 5th ribbon will be left over.

3 0

3 years ago