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Helen [10]
3 years ago
10

28. A number has 4 and 5 as factors. What other numbers must be factors? Why? What is the smallest number

Mathematics
1 answer:
sweet [91]3 years ago
5 0

Answer:

2, 10.

Smallest number = 20.

Step-by-step explanation:

It must have 2 as a factor because 4 is a factor,  and 2 is a factor of 4.

Also 4 *5 = 20 so 10 must be a factor.

The smallest number possible is 20.

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A person is standing 50 ft from a statue. The person looks up at an angle of elevation of 16o when staring at the top of the sta
NemiM [27]

Answer:

The height of the statue is 21.4 feet

Step-by-step explanation:

We are given

A person is standing 50 ft from a statue

The person looks up at an angle of elevation of 16 degree when staring at the top of the statue

hen the person looks down at an angle of depression of 8 degree when staring at the base of the statue

Firstly, we will draw diagram

In triangle ABF:

FC=50

we can use trig formula

tan(16)=\frac{y}{50}

y=50tan(16)

y=14.33727ft

now, we can find x

In triangle DEF:

we can use trig formula

tan(8)=\frac{x}{50}

x=50tan(8)

x=7.0270ft

we can see that

height of statue =x+y

so, the height of statue is

=14.33727+7.0270

=21.4ft


6 0
3 years ago
You own a lawn care business. in a typical week you drive 600 miles and use 40 gallons of gasoline. gasoline costs $1.25 per gal
iVinArrow [24]
42.50$ ?        21 times 1.25  plus 13 times 1.25 = 42.50?  
4 0
3 years ago
Solve using elimination. <br> 2x + y = 5<br> x - 3y = 6
Umnica [9.8K]

Answer:

then substitute y in eq 1 to get x

hope this helped you

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3 0
2 years ago
Abana deposits $1000 each year into a savings account earning 2% intrest .how much after 3 years
ladessa [460]
$60, Because 2% of $1000 is $20, and 20 x 3 is 60.

8 0
2 years ago
What are some ways we can tell that 7x + 2 is not equivalent to 9x?
vlabodo [156]

Answer:

To determine if two fractions are equivalent, cross multiply. To cross multiply, you multiple the numerator of the first fraction by the denominator of the second. Then you multiply the denominator of the first fraction by the numerator of the second. If the two numbers are equal, the fractions are equivalent

Step-by-step explanation:

5 0
3 years ago
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