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3 years ago

What do all rational numbers have in common?

Mathematics

1 answer:

zloy xaker [14]3 years ago

3 0

Janejs anwksnskx dkd searional

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A lighthouse has a shadow that is 36 feet long. Zara is 4 feet tall, and she is standing next to the lighthouse. Zara has a shad

pychu [463]

Answer:

48 feet

Step-by-step explanation:

At a particular time, objects and their shadows are proportionate.

Therefore, in figure,

AB/FD = BC/DE --- (1)

where AB is the height of the lighthouse, BC, its shadow and FD is the height of Zara and DE is her shadow.

From the given information,

BC = 36 feet

FD = 4 feet and DE = 3 feet

(1) becomes

AB/4 = 36/3

AB = 12

AB = 48

Hence, the height of the lighthouse is 48 feet.

7 0

3 years ago

A bag contains four yellow marbles, six red marbles, five blue marbles, six white marbles, and four black marbles. What is the t

ss7ja [257]

Answer:

the answer would be D

Step-by-step explanation:

first you add all your marbles up and that is you bottom half of the equation and then you put the amount of white marbles on top.

4 0

3 years ago

Read 2 more answers

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table?

sveta [45]

Answer: A B

Group 1 0.25 0.75

Group 2 0.44 0.56

Step-by-step explanation:

Since we have given that

Number of people of A in group 1 = 15

Number of people of B in group 1 = 45

Total number of people in group 1 is given by

$15+45=60$

Relative frequency of people of A in Group 1 is given by

$\frac{15}{60}=0.25$

Relative frequency of people of B in Group 1 is given by

$\frac{45}{60}=0.75$

Similarly, Number of people of A in group 2 = 20

Number of people of B in group 2 = 25

Total number of people in group 2 is given by

$20+25=45$

Relative frequency of people of A in Group 2 is given by

$\frac{20}{45}=0.44$

Relative frequency of people of B in Group 2 is given by

$\frac{25}{45}=0.56$

Hence, A B

Group 1 0.25 0.75

Group 2 0.44 0.56

6 0

3 years ago

Ax+16=b−3x what is a= and what does b= ?

Vlad1618 [11]

Answer:

Slope=4

x−intercept=−

=−4

b−intercept=

=16.0000

Step-by-step explanation:

7 0

4 years ago

Can someone help me?!

Crank

The answer is D. dividing both sides by 4 isolates the variable

3 0

3 years ago