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4 years ago

I need help quick pelase

Mathematics

1 answer:

Minchanka [31]4 years ago

7 0

Answer:

1. Reduction.

2. (0, 0)

3. 1/3

Step-by-step explanation:

1. This is a reduction becuase the image gets smaller.

2. The point of dilation is the origin because that is what they both share and it is where is shrinks with. Sorry if that sounded really weird it is how I like to think about it.

3. The scale factor is 1/3 because the size shrinks 3 times.

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Guys please please help me I’m begging u guys lol I need help please

Llana [10]

Answer:

What do you need help with?!?XD

Step-by-step explanation:

4 0

3 years ago

The angle of elevation to the top of a water tower from point A on the ground is 19.9°. From point B, 50.0 feet closer to the to

zepelin [54]

Answer:

Answer in terms of a trigonometric function :

$h = \frac{20tan(19.9)}{0.4-tan(19.9)}$

Answer in figures

$h = 190.5 feet$

Step-by-step explanation:

Consider the sketch attached below to better understand the problem.

Let x be the distance between point B and the base of the water tower.

$tan (19.9)=\frac{h}{50+x} ---------------equation 1\\$

$tan (21.8)=\frac{h}{x}----------------equation 2$

From equation 2,

$x =\frac{h}{tan21.8}=\frac{h}{0.4}$

substituting the value of x into equation 1, we get

$tan (19.9)=\frac{h}{50+(\frac{h}{0.4} )}$

$tan 19.9=h\times \frac{0.4}{20+h}$

cross multiplying,

$20\times tan(19.9) +htan(19.9)=0.4h$

$20tan(19.9)= h(0.4-tan(19.9))$

$h= \frac{20tan (19.9)}{0.4-tan (19.9)}$

The height of the tower is $h= \frac{20tan (19.9)}{0.4-tan (19.9)}$ in terms of the trig function "Tan"

The equation can simply be evaluated to get the answer in figures since the angles are given in the question

5 0

3 years ago

Helpppppp pleaseeee me helpppp

Readme [11.4K]

Answer:

$10 + $10 + $1 + 25¢ + 5¢

$20 + $1 + 25¢ + 5¢

Step-by-step explanation:

Each one must pay $21.30

3 0

3 years ago

The graph shows a proportional relationship between y (price) and x (number of pounds of rice).

Mashutka [201]

1.67 Is the answer or D.

6 0

3 years ago

Read 2 more answers

2) In 1000 sq. meter of land a farmer cultivated 765 kg of rice with the wastage of 23.5%. I) Find the weight of the wastage. II

LiRa [457]

Answer:

Weight of wastage=179.775kg

weight of rice cultivated= 585.225 kg

percentage of rice cultivated=76.5%

Step-by-step explanation:

Area of land=100 square meters

Cultivated rice=765kg

Wastage=23.5%

1) Weight of the wastage=23.5% of 765kg

=23.5/100 × 765

=17977.5 / 100

=179.775 kg

2) Weight and percentage of rice cultivated.

weight of rice cultivated = 765 kg - 179. 775 kg

= 585.225 kg

percentage of rice cultivated = 100 - 23.5

= 76.5%

3) if area is increased 40 times in size

New area=1000 square meters × 40

=40,000 square meters

Cultivated rice= 765kg × 40

=30,600 kg

Cultivated rice excluding wastage=585.225 kg × 40

=23,409 kg

8 0

3 years ago