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2 years ago

Mr Kobe has 30 students in his class ha has twice as many girls and boys what are the ratios to total students

Mathematics

2 answers:

Korvikt [17]2 years ago

7 0

Answer:

Step-by-step explanation:

2:3 is the correct answer

Makovka662 [10]2 years ago

4 0

I hope this helps you

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The diagram shows a triangle.

Basile [38]

Answer:

s=13

Step-by-step explanation:

$As\ we\ know\ that,\\"The \ sum\ of\ all\ angles\ of\ a\ triangle\ is\ 180"\\Hence,\\(4s+9)+(3s+1)+(6s+1)=180\\4s+3s+6s+9+1+1=180\\13s+11=180\\13s=180-11\\13s=169\\s=13$

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2 years ago

Convert x2 + y2 = 16 to polar form.

Dafna1 [17]

The Correct Answer is Option B

r = 4

Ex. CONVERT 2 + 2 = 4 x 4 = 16

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3 years ago

simplify the following polynomial expression. <img src="https://tex.z-dn.net/?f=%285x%5E%7B3%7D%20%2B4x%5E%7B2%7D%20%2B6x-3%29%2

FrozenT [24]

Here is the answer hope it helps

7 0

3 years ago

Solve the following system of equations. What is one x-value of a solution?

gulaghasi [49]

Answer:

There is some mistake in the question, because the solutions are x = -1.445 and x = -34.555

Step-by-step explanation:

Given the functions:

f(x) = x² + 4x + 10

g(x) = -32x - 40

we want to find the points at which f(x) = g(x).

x² + 4x + 10 = -32x - 40

x² + 4x + 10 + 32x + 40 = 0

x² + 36x + 50 = 0

Using quadratic formula:

$x = \frac{-b \pm \sqrt{b^2-4(a)(c)}}{2(a)}$

$x = \frac{-36 \pm \sqrt{36^2-4(1)(50)}}{2(1)}$

$x = \frac{-36 \pm 33.11}{2}$

$x_1 = \frac{-36 + 33.11}{2}$

$x_1 = -1.445$

$x_2 = \frac{-36 - 33.11}{2}$

$x_2 = -34.555$

5 0

2 years ago

The formula for the circumference of a circle is c=πr, where r is the radius and C is the circumference. The equation solved for

dem82 [27]

Answer:

The answer is B

Step-by-step explanation:

r = c/2π

c = 16π

r = 16π/2π

= 8

4 0

3 years ago