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3 years ago

LAST 1 I SWEARRRR !!

Mathematics

2 answers:

Elenna [48]3 years ago

7 0

Answer:

100 i believe

Step-by-step explanation:

I guess subtract 45 from 145

kolbaska11 [484]3 years ago

3 0

Answer:

80 look at the angels it 80! i had the same exact test today

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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Which of the following is an informal proof of the given conjecture? Conjecture: All squares are similar

tester [92]

The 3rd one because of the laws and newton’s ways

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4 years ago

An item that usually sells for $189 is on sale for 25% off. Find the sale price

9966 [12]

Answer:

$141.75

Step-by-step explanation:

189*.75

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3 years ago

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Help please? thank you

Alexxandr [17]

9514 1404 393

Answer:

RS = √(b² +(c -a)²)

Step-by-step explanation:

Put the given point coordinates in the given formula:

R = (x₁, y₁) = (0, a)
S = (x₂, y₂) = (b, c)

RS = √((b -0)² +(c -a)²)

RS = √(b² +(c -a)²)

8 0

3 years ago

A tower casts a shadow that is 60 feet long when the angle of elevation of the sun is 65˚. How tall is the tower? Round answer t

r-ruslan [8.4K]

Answer: Tthe tower is 129 feet tall.

Step-by-step explanation:

According to trigonometry in a right triangle:

$\tan\theta =\dfrac{\text{Side opposite to }\theta}{\text{Side adjacent to }\theta}$

Let x be the height of the tower.

Given , $\theta=65^{\circ}$

Since tower stands vertical to the ground, that means it is making a right triangle with the shadow.

$\tan 65^{\circ}=\dfrac{x}{60}\\\\\Rightarrow\ 2.1445=\dfrac{x}{60}\ \ \text{[Using calculator]}\\\\\Rightarrow x= 2.1445\times60=128.67\approx129\text{ feet}$

Hence, the tower is 129 feet tall.

3 0

3 years ago