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3 years ago

7. In the right triangle below, find the length of the third side. B 15 10 C

Mathematics

1 answer:

Semmy [17]3 years ago

8 0

Answer:

If you need to find the hypotenuse, then square the two sides and add them together then square root that answer to get the hypotenuse. If you need to find a side then take the hypotenuse and other side and square them then subtract the side by the hypotenuse and then square root that answer.

Step-by-step explanation:

legs; a b hypotenuse c

a^2 + b^2 = c^2 then square root this answer

c^2 - b^2 = a^2 then square root this answer

c^2 - a^2 = b^2 then square root this answer

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The number of music CDs that Carl has in his collection is four less than triple the number of music CDs that Toni has in her co

grigory [225]

Ok, simple.
Carl has 4 less than triple the amount Toni has.
Toni has x amount of CDs.
Carl has 3x - 4 amount of CDs.

Hope this helps!

6 0

3 years ago

F(x) = 49 − x2 from x = 1 to x = 7; 4 subintervals

Setler [38]

Answe

Given,

f(x) = 49 − x² from x = 1 to x = 7

n = 4

$\Delta x = \dfrac{7-1}{4}= 1.5$

For x= 1

f(x₀) = 49 - 1^2 = 48

x = 2.5

f(x₁) = 42.75

x = 4

f(x₂) = 49 - 4^2 = 33

x = 5.5

f(x₃) = 49 - 5.5^2 = 18.75

x = 7

f(x₄) = 49 - 7^2 = 0

We have to evaluate the function on therigh hand point

$A = \Delta x [f(x_1)+f(x_2)+f(x_3)+f(x_4)]$

$A = 1.5 [42.75+33+18.75+0]$

$A = 141.75$

For Area for left hand sum

$A = \Delta x [f(x_0)+f(x_1)+f(x_2)+f(x_3)]$

$A = 1.5 [48+42.75+33+18.75]$

$A =213.75$

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3 years ago

Find the value of x. please helpp

SIZIF [17.4K]

Answer:

Step-by-step explanation:

given 2 secants drawn from an external point to the circle , then

the product of the measures of one secant's external part and that entire secant is equal to the product of the other secant's external part and that entire secant, that is

9(9 + 2 + 3x) = 10(10 + 2x + 2)

9(11 + 3x) = 10(12 + 2x) ← distribute parenthesis on both sides

99 + 27x = 120 + 20x ( subtract 20x from both sides )

99 + 7x = 120 ( subtract 99 from both sides )

7x = 21 ( divide both sides by 7 )

x = 3

4 0

1 year ago

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An entomologist can model the number of mosquitos in a forest as a function of rainfall.

maxonik [38]

Answer: d :)

Step-by-step explanation:

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2 years ago

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-3x + 5.5x + 4 = 7.2

GrogVix [38]

Answer:

1.28

Step-by-step explanation:

x = 1.28

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2 years ago