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3 years ago

How does this work, please good explanation

Mathematics

1 answer:

schepotkina [342]3 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

A (1, 1 ) → A' (- 1, 1 )

B (2, 4 ) → B' (- 2, 4 )

C (4, 2 ) → C' (- 4, 2 )

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1.9(2.3n+6)+10.45>43.7

Ulleksa [173]

Answer:

4.27n+21.4

Step-by-step explanation:

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2 years ago

The ratio of students who made

morpeh [17]

Answer:

Step-by-step explanation:

1 out of 50 got it, so 500/50=10

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2 years ago

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7th grade work help please<br> will give brainliest:)

Montano1993 [528]

Answer: 67.27

Step-by-step explanation:

7.1 x 7.1 for the square = 50.41

7.1 divided by 2 = 3.55

3.55 x 4.75= 16.86

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3 years ago

How do you solve for x in similar triangles

amid [387]

You set the corresponding sides equal to each other and solve for x as you would in a normal equation

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2 years ago

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A cell tower has the hieght of 70 meters. The Tower casts a shadow of 45 meters on the ground. What is the angle of elevation of

laiz [17]

Answer:

$\theta=0.99^{\circ}$

Step-by-step explanation:

Given that,

The height of a cell tower, P = 70 m

The tower casts a shadow of 45 meters on the ground.

We need to find the angle of elevation of the shadow to the top of the cell tower. We can use trigonometry to find it.

$\tan\theta=\dfrac{P}{B}$

Put all the values,

$\tan\theta=\dfrac{70}{45}\\\\\theta=\tan^{-1}\left(\frac{70}{45}\right)\\\\\theta=0.99^{\circ}$

Hence, the angle of elevation is equal to $0.99^{\circ}$ .

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2 years ago