3 years ago

If RS = 3x + 1, ST = 2x – 2, and RT = 64, find the value of x.

Mathematics

1 answer:

Mrac [35]3 years ago

4 0

S+ST = RT

3x+1 + 2x-2 = 64

5x = 65

x = 13

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Answer:

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Step-by-step explanation:

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3 years ago

an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.

dolphi86 [110]

Answer:

$\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}$

Step-by-step explanation:

Look at the picture.

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3 years ago

Using formula z equals x over 5 and solving for x which is correct? x equals 5 z or x equals 5 over x or x equals z over 5 or x

erastovalidia [21]

Original
Z = X/5
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3 years ago

Sin (3x+19)=Cos(5x-25) What is the value of x? A) 6 B) 12 C) 18 D) 24

malfutka [58]

Answer:

Step-by-step explanation:

Using the cofunction identity

sin x = cos(90 - x)

Given

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8x + 19 = 115 ( subtract 19 from both sides )

8x = 96 ( divide both sides by 8 )

x = 12 → B

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