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4 years ago

Divide each polygon into triangles to find the sum of its angle measures

Mathematics

1 answer:

ElenaW [278]4 years ago

7 0

Is it not [n-2]180 this is the normal formula for finding the sum of angles

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What between 250 and 300

Fiesta28 [93]

Answer:

5 and 0 between 250 and 300

5 0

3 years ago

Colin buys a car for £28100.

andriy [413]

Answer:

The amount the car will be worth after 6 years is £21,917 and 22 pence

Step-by-step explanation:

The amount for which Colin buys the car, PV = £28,100

The amount by which the car depreciates each year, r = 4%

The number of years after which the value of the car is sought, n = 6 years

The future value, FV, based on an annual depreciation is given as follows;

$FV = PV \times \left ( 1 + \dfrac{r}{100} \right ) ^n$

Substituting the known values gives;

$FV_6 = 28,000 \times \left ( 1 - \dfrac{4}{100} \right ) ^6 = 21,917.22$

Therefore, the amount the car will be worth after 6 years, future value FV₆ = £21,917 and 22 pence

5 0

3 years ago

Solve the following quadratic function by utilizing the square root method. y = 16 – 4x2

tiny-mole [99]

Answer:

we have

y=16-4x²

4x²=16

x²= $\frac{16}{4}$

x= $\sqrt{4}$

x=±2

5 0

3 years ago

What is the answer to this

weqwewe [10]

<h3>Answer: x = 29</h3>

=====================================================

Work Shown:

Focus on triangle DEC. We have angle C is 48 and D is 74. Let's find angle E.

D+E+C = 180

74+E+48 = 180

E+122 = 180

E = 180-122

E = 58

----------

In the sequences ABC and DEC, we have B and E as the second letters. The order is important because the angles must align properly (so we know how they pair up). Therefore, angle B = angle E because triangle ABC = triangle DEC.

Furthermore,

angle B = angle E

2x = 58

x = 58/2

x = 29

5 0

3 years ago

Find the product of (–d + e)(4e + d). Which statements are true? Check all that apply

vlada-n [284]

(- d + e)(4e + d)
-d*4e - d^2 + 4e^2 + de
-d^2 - 3de + 4e^2

That's the answer to the expansion. Without choices, there is not much else I can do.

6 0

3 years ago

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