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2 years ago

Geometryyy pls help ty

Mathematics

2 answers:

adoni [48]2 years ago

4 0

Answer:

15.56

Step-by-step explanation:

if ∠b is 45° then ∠c is also 45°

so AB=11 ft

using Pythagoras theorem 11²+11²= BC²

zimovet [89]2 years ago

3 0

16-~7 make sure to leave the power 5 out

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Three students, Matthew, Thompson and Amos shared #15000 in the ratio of 5:2:x respectively. If Matthew's share is 7500, calcula

jasenka [17]

Answer:

The value of x is 3.

Step-by-step explanation:

Matthew earned 7500 of 15000, which is exactly half the total amount, meaning that the fraction corresponding to his earnings is 1/2.

Rate of 5:2:x, with number 5 corresponding to Matthew, mean that his fraction of the earnings, in function of x is given by:

$\frac{5}{5 + 2 + x} = \frac{5}{7 + x}$

Both fractions are equal, so:

$\frac{5}{7 + x} = \frac{1}{2}$

Applying cross multiplication:

$7 + x = 10$

$x = 10 - 7$

$x = 3$

The value of x is 3.

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3 years ago

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Triss [41]

Answer:

20 inches²

Step-by-step explanation:

perimeter = 8 + 3 + 5 + 4

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4 0

2 years ago

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andreev551 [17]

Answer:

{14,13,6,0}

Step-by-step explanation:

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2 years ago

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( 2 , -2 ) and x - y = 12

Nataly_w [17]

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Step-by-step explanation:

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3 years ago

If cos(θ)=2853 with θin Q IV, what is sin(θ)?

marysya [2.9K]

Answer: $\sin \theta=\frac{-45}{53}$

Step-by-step explanation:

Since we have given that

$\cos\theta=\frac{28}{53}$

And we know that θ is in the Fourth Quadrant.

So, Except cosθ and sec θ, all trigonometric ratios will be negative.

As we know the "Trigonometric Identity":

$\cos^2\theta+\sin^2\theta=1\\\\\sin \theta=\sqrt{1-\cos^2\theta}\\\\\sin \theta=\sqrt{1-(\frac{28}{53})^2}=\sqrt{\frac{53^2-28^2}{53^2}}\\\\\sin \theta=\sqrt{\frac{2025}{53^2}}\\\\\sin \theta=\frac{45}{53}$

It must be negative due to its presence in Fourth quadrant.

Hence, $\sin \theta=\frac{-45}{53}$

7 0

3 years ago