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Oksana_A [137]
3 years ago
10

What is the GCF of 15 and 30

Mathematics
2 answers:
NikAS [45]3 years ago
5 0
The Greatest Common Factor (GCF) is to look for the biggest number that is simultaneously divisible into 15 and 30.

3    /       15      30

5    /       5        10

        /     1         2

GCF = 3 * 5 = 15.

The greatest common factor = 15.

I hope this explains it.
vladimir2022 [97]3 years ago
3 0
15 is the GCF of 15 and 30, as 15 is the largest factor of 15 and 30.
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(Law of Sines)
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Answer:

Option (D) is correct.

Step-by-step explanation:

In a triangle BCD , with b, c, d as the sides of triangle.

Sine rule states when we we divide side b by the sine of angle B then it is equal to side c divided by the sine of angle C and also equal to side d divided by the sine of angle D.

Using Sine rule,

\frac{b}{\sin B}=\frac{c}{\sin C}=\frac{d}{\sin D}

Consider the first and third ratio,

\frac{b}{\sin B}=\frac{d}{\sin D}

Substitute the values of d = 3 , b= 5 and ∠D=25°

\Rightarrow \frac{5}{\sin B}=\frac{3}{\sin 25^{\circ}}

\Rightarrow \sin B=\frac{\sin 25^{\circ} \times 5}{3}}  

 \Rightarrow \sin B=45,135

Thus, Measure of angle B is 45 and 135 as sinB is positive is first and 2nd quadrant.

Thus, option (D) is correct.


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3 years ago
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What are the rules to remember when dividing fractions?
harkovskaia [24]

Answer:

copy the first fraction, turn the division sign to a multiplication sign and flip the second fraction

Step-by-step explanation:

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turn it to- 2/5 x 4/1

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Pls help!!!!The probability of hitting a target on a single trial is 40%,Find the probability of hitting the same target 5/8 tim
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probability= p(hit)+p(hit)+p(hit)+p(hit)+p(hit)+p (no hit)+p (no hit)+p (no hit)
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The clock below shows time that lance got home from school. 3:32. What time did he get home A: seventeen minutes before three B:
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Answer:

If Lance got home from school at 3:32 p.m. A and B both represent:

A: seventeen minutes before 3 would be before 3 o'clock even happens

B: 28 minutes before 4 would make more sense, since 3:32 is before 4 o'clock

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2 years ago
A storage space in a basement is in the shape of a rectangular prisim. The hieght of the storage space is 5 feet. The length is
Greeley [361]

Answer:

length is 28.86ft

width= 4.12ft

Step-by-step explanation:

<h2>This problem bothers on the mensuration of solid shapes, a rectangular prism.</h2>

The storage space takes the shape of a rectangular prism, and we are required to find the width and length  of the storage space.

let the width of the basement be "w"

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width w= w

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We know that the expression for the volume of a rectangular prism is

volume= length * width* height

substituting our data we have to find "w"

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dividing both sides by 35 we have

w^{2}= \frac{595}{35\\}  \\w^{2}= 17\\

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w=\sqrt{17} \\w= 4.12

since we know that length= 7w and width = w , we can substitute our value for w and find the length and width

length= 7*4.12= 28.86ft\\width = 4.12ft

6 0
3 years ago
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