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3 years ago

4x^2 = 28x Solve and explain how you arrived at the solution

1 answer:

4 0

Step 1: Subtract 28x from both sides.
4x2−28x=28x−28x4x2−28x=0
Step 2: Factor left side of equation.
4x(x−7)=0
Step 3: Set factors equal to 0.
4x=0 or x−7=0
Answer:x=0 or x=7

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Find the measure of the arc or angle indicated.

Ksenya-84 [330]

Answer: The correct is 114

Step-by-step explanation: Hope this helps

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3 years ago

Pls answer .....................

Taya2010 [7]

Answer:

2/3

Step-by-step explanation:

The slope is rise over run so all you have to do is make a triangle from the two points, count how many go up, which is 2, and how many go to the side, which is 3. The rise (2) goes on the top of the fraction, the run (3) goes on the bottom and then that's your answer.

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3 years ago

Read 2 more answers

At 1:00 p.m the water level in a pool is 13 inches. At 1:30 p.m. the water level is 28 inches. What is the constant rate of chan

Anna007 [38]

Every 30 mins the water level goes up by 15 inches

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3 years ago

An individual saves $5000 in a bank account at the beginning of each year for 10 years.

frozen [14]

Answer:

a) Amount saved if the interest is compounded annually is $5832

b) Amount saved if the interest is compounded semi-annually is $5849.5

Step-by-step explanation:

Principal Amount P = 5000

Time t = 10 years

Annual interest i = 8% = 0.08

We need to find amount saved if interest is compounded a) annually b) semi-annually

a) Amount saved if the interest is compounded annually

If interest compounded annually, n= 1

Using Formula: $A=P(1+\frac{r}{n})^{nt}$

Putting values:

$A=P(1+\frac{r}{n})^{nt} \\A=5000(1+\frac{0.08}{1})^{1*2}\\A=5000(1+0.08)^2\\A=5000(1.08)^2\\A=5000(1.1664)\\A=5832$

So, Amount saved if the interest is compounded annually is $5832

b) Amount saved if the interest is compounded semi-annually

If interest compounded semi-annually, n= 2

Using Formula: $A=P(1+\frac{r}{n})^{nt}$

Putting values:

$A=P(1+\frac{r}{n})^{nt} \\A=5000(1+\frac{0.08}{2})^{2*2}\\A=5000(1+0.04)^4\\A=5000(1.04)^4\\A=5000(1.1699)\\A=5849.5$

So, Amount saved if the interest is compounded semi-annually is $5849.5

4 0

3 years ago

Kayson is looking at two buildings, building A and building B, at an angle of elevation of 40°. Building A is 120 feet away, and

sveticcg [70]

Building A is 50 .34 ft taller than building B

The situation forms a right angle triangle.

Two right angle triangles are formed.

<h3>Right angle triangle:</h3>

Right angle triangle has one of its angle as 90 degrees.

Therefore, trigonometric ratios can be used to find the sides of the building.

The height of the buildings is the opposite sides of the triangle formed. The adjacent sides is the distance from the building to the person.

Therefore,

Building A;

tan 40 = opposite / adjacent
tan 40° = h / 120
h = 100.691955741
h = 100.69 feet

Building B:

tan 40 = h / 60
h = 50.3459778706
h = 50.34 feet

Therefore, building A is around 50.34 ft taller than the building B

learn more on angle of elevation here: brainly.com/question/3105623

6 0

2 years ago