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3 years ago

Solve these questions

Mathematics

2 answers:

Lelu [443]3 years ago

5 0

Answer:

1= 15

2=false

Step-by-step explanation:

1=45 divided by 3

2= it isn't true so it IS false

max2010maxim [7]3 years ago

5 0

Answer: The male penguin is 15 inches AKA (C) . the second problem is true I think

Step-by-step explanation: To find out this answer you have to divide 3 and 45 and 15x3=45 so then you put 15 on the top and that's how you get 15.

97x30= 2,910 and 90x30 + 7x30= 2910 .

Plz tell me if this right or not . If its right please give thanks and brainliest

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2+5+2) = 6(+2)

Sergio039 [100]

cuatro no? porque osea tiene q

5 0

3 years ago

Madeline uses a mirror on the ground to measure the height of her school building. She walks a distance of 9.5 m from the buildi

Vadim26 [7]

The height of the building is 5.33m.

<h3>How to calculate the height?</h3>

The question is to calculate the height of the building.

Based on the information given, the height will be:

Madeline eye height/Distance from X = Height of building/Building distance from X

1.55/2.75 = x/9.45

x = (1.55 × 9.45)/2.75

x = 5.33 m

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3 0

2 years ago

At 6:00 PM, a flagpole that is 35 feet tall casts a shadow that is 50 feet long. At the same time, how long will a person's shad

sertanlavr [38]

<u>Answer:</u>

The length of the person’s shadow is 5.7ft

<u>Explanation:</u>

Length of the flagpole =a= 35ft

Length of the shadow of the flagpole= b=50ft

Length of the person=c= 4ft

Suppose the length of the person’s shadow is=d

According to the rules of trigonometry

$\frac{\text { Length of the flagpole }}{\text { Length of the shadow of the flagpole }}=\frac{\text { Length of the person }}{\text { Length of the person's shadow }}$

$\frac{a}{b}=\frac{c}{d}$

$\frac{35}{50}=\frac{4}{d}$

35d=200

d= $\frac{200}{35}$

d=5.7ft

Hence, The length of the person’s shadow is 5.7ft.

3 0

3 years ago

I need help please! How do i know which is the correct answer.

hichkok12 [17]

Answer:

Step-by-step explanation:

since there cant be technically half of someone (i hope not) the domain has to be "whole numbers". hours can be split, so they are "all numbers". well, looking at it again, it is C, since the others can not possibly be correct.

3 0

3 years ago

Calculate the average time the car took to reach each checkpoint. Record the average time in Table D of your Student Guide. The

zhuklara [117]

The average time the car took to reach each checkpoint are:

2.07
3.16
4.11
4.92

<h3>Average time</h3>

Given:

Time interval

1 2 3 4

2.02 3.17 4.12 4.93

2.05 3.07 3.98 4.81

2.15 3.25 4.23 5.01

Hence:

First quarter checkpoint

Average time= (2.02 + 2.05 + 2.15) / 3

Average time=6.22/3

Average time= 2.07s

Second quarter checkpoint

Average time= (3.17 +3.07 + 3.25) / 3

Average time=9.49/3

Average time = 3.16 s

Third quarter check point

Average time= (4.12 + 3.98 + 4.23) / 3

Average time=12.33/3

Average time= 4.11 s

Fourth quarter check point

Average time = (4.93 + 4.81 + 5.01) / 3

Average time=14.75/3

Average time= 4.917 s

Average time=4.92s (Approximately)

Therefore the average time the car took to reach each checkpoint are: 2.07, 3.16, 4.11, 4.92.

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6 0

2 years ago