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4 years ago

10 POINTS!! Please Help!

Mathematics

1 answer:

jenyasd209 [6]4 years ago

7 0

Answer:

The answer would actually be B.) S

As you can see, where the S is, it is in the same position as the A on the other triangle.

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Paying 12$ to whoever can answer this question i created. MUST BE CORRECT

Furkat [3]

Answer:

x = 10

I used the Interior Angles of a Triangle Rule --The sum of all 3 interior angles in a triangle is always 180°.

(3x + 28) + (5x - 18) + 90° = 180°

Now i can get rid of the parentheses and combine like terms.

3x + 5x + 28 - 18 + 90 = 180

8x + 10 + 90 = 180

8x + 100 = 180

Then i subtract 100 from both sides to isolate x.

8x + 100 - 100 = 180 - 100

8x = 80

Then, i divide both sides by 8 to find x.

8x ÷ 8 = 80 ÷ 8

x = 10

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kodGreya [7K]

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Step-by-step explanation:

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3 years ago

Find the axis of symmetry for this parabola y=-5x^2-10x-15 write it as an equation

Ksju [112]

Axis of symmetry is the x value of the vertex

the x value of the vertex, in form
y=ax^2+bx+c is -b/(2a)

so
y=-5x^2-10x-15
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x value of vertex is -(-10)/(2*-5)=10/-10=-1
x=-1 is axis of symmetry

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4 years ago

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Alecsey [184]

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The variables x and y are proportional.Use the vaules to find the constant aof proportonality.Then write the equation that relat

sveticcg [70]

Answer:

Constant of proportionality = 24

Equation: $y=24x$

Step-by-step explanation:

Given:

'x' and 'y' are proportional to each other.

At $x=3,y=72$

Now, for a proportional relationship, the constant of proportionality is given as the ratio of the two values of the two variables that are in proportion.

Here, 'x' and 'y' are in proportion. So, the constant of proportionality is given as:

$k=\frac{y}{x}\\\\k=\frac{72}{3}=24$

Therefore, the constant of proportionality is 24.

Now, a proportional relationship in 'x' and 'y' is given as:

$y=kx$

Now, plug in the given value of 'k' and complete the equation. This gives,

$y=24x$

Therefore, the equation that relates 'x' and 'y' is $y=24x$

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4 years ago