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2 years ago

Help help help pls NO links I can’t open them:( pic is above

Mathematics

1 answer:

Natali5045456 [20]2 years ago

8 0

Answer:

a) 36°

b ) 18°

Step-by-step explanation:

The formula is given as:

The measure of each exterior angle =360°/n, where n = number of sides of a polygon.

a) decagon

Decagon = 10 sides

Hence, the measure of each exterior angle = 360°/10

= 36°

b) 20-gon

20-gon = 20 sides

Hence, the measure of each exterior angle = 360°/20

= 18°

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A car assembly line can produce 3 cars per hour. How long would it take to produce 150 cars?

Basile [38]

50 hours cause you take 150 divided it by 3

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3 years ago

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How do you write 125% as a fraction mixed number or whole number

Alex_Xolod [135]

Answer: Below

Step-by-step explanation:

125% is essentially 1.25 or 125/100.

In mixed number form it's:

$1\frac{1}{4}$

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2 years ago

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A student receives test scores of 62, 83, and 91. This student's term project score is 88. Each test is worth 20% of the final g

miskamm [114]

Answer:

The student's current average score will be 69.2

Step-by-step explanation:

Let first test be TEST A: which is 20 of total and secures 62

Let second test be TEST B: which is 20 of the total marks and has secured 83.

Let third test be TEST C: which is 20 of total and has secured 91.

And now the TEST D which is 25 of total and has secured 88.

Therefore, by multipying across

${0.2}\times{62}$ = 12.4

${0.2}\times{83}$ = 16.6

${0.2}\times{91}$ = 18.2

${0.25}\times{88}$ =22

Now, by adding the scores to get the average score

We get, 69.2.

6 0

2 years ago

Answer ,how to do it.

guapka [62]

Answer:

The system has two solutions:

x₁ = 5 ⇒ y₁ = -10

x₂ = -2 ⇒ y₂ = 11

Step-by-step explanation:

Let's solve the system of equations, this way:

y = -3x + 5

y = x ² - 6x - 5

Replacing y in the 2nd equation:

y = x ² - 6x - 5

-3x + 5 = x ² - 6x - 5

x ² - 3x - 10 = 0

Solving for x, using the quadratic formula:

(3 +/- √(9 -4 * 1 * -10))/2 * 1

(3 +/- √9 + 40)/2

(3 +/- √49)/2

(3 +/- 7)/2

x₁ = 10/2 = 5

x₂ = -4/2 = -2

x₁ = 5 ⇒ y₁ = -10

x₂ = -2 ⇒ y₂ = 11

As we can see the system has two different solutions

8 0

3 years ago

Increase 90 in the ratio 5 is to 3

cupoosta [38]

9514 1404 393

Answer:

150

Step-by-step explanation:

The increase is by the factor 5/3, so the increased number is ...

90×(5/3) = 150

90 increased in the ratio 5 : 3 is 150.

5 0

2 years ago