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3 years ago

Please provide the step by step explanation. People never do that

Mathematics

2 answers:

777dan777 [17]3 years ago

8 0

Answer:

D) √15

Step-by-step explanation:

An irrational number is a number that can be expressed as an infinite decimal with no set of consecutive digits repeating itself indefinitely and that cannot be expressed as the quotient of two integers.

Therefore the answer would be D) √15 because the decimals keep going

A) 1.52 just ends like so

B) -13³ equals -2197

C) 9/4 equals 2.25

poizon [28]3 years ago

6 0

Answer:

D = √15

Step-by-step explanation:

√15 is an irrational number because it cannot be written as a fraction. The square root of 15 is a very long decimal. So, it is considered an irrational number.

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Where does the line y = 4x + 1 intersect the y-axis (the y-intercept)?

Nataliya [291]

Answer:

(0,1)

Step-by-step explanation:

The equation for slope is y=mx+b.

The b value stands as the y - intercept.

6 0

2 years ago

What is the length of the shadow cast by a 12-foot lamp post when the angle of elevation of the sun is 60º? (to the nearest tent

elena-s [515]

Answer:

6.9 foot.

Step-by-step explanation:

Given: Length of lamp post= 12-foot.

The angle of elevation of the sun is 60°.

∴ The length of Lamp post, which is opposite is 12-foot.

Now, finding the length of shadow cast by foot lamp.

Length of shadow is adjacent.

∴ We know the formula for $Tan\theta$ = $\frac{Opposite}{adjacent}$

Next, putting the value in the formula.

⇒ $Tan 60° = \frac{12}{adjacent}$

Cross multiplying both side and using the value of Tan 60°

∴ Adjacent= $\frac{12}{\sqrt{3} } = 6.92$ ≅ 6.9 (nearest tenth value)

6.9 is the length of shadow cast by a 12-foot lamp post.

3 0

3 years ago

Find the HCF of 960 and 432

sdas [7]

Answer:

Step-by-step explanation:

Using Uclid's division algorithm, the HCF of 960 and 432 can be obtained as follows:

Here, 960 is greater and 432 is smaller. We divide 960 by 432.

STEP 1:

960 = 432*2 + 96

STEP 2:

Divide divisor (432) by remainder (96)

432 = 96 * 4 + 48

STEP 3:

Divide divisor (96) by remainder (48)

96 = 48 * 2 + 0

Since, remainder at this step is zero (0), so the HCF would be the divisor of this step which is 48.

Thus, HCF of 960 and 432 is 48

4 0

2 years ago

Two objects that are the same shape but not the same size are ___

Sophie [7]

Answer:

The answer to your question: Similar 

Step-by-step explanatioN

i picked this answer because they have one comparison- same shape

what is comparison- the same features in something between 2 objects or more

this also means similar

so it is similar

5 0

3 years ago

Read 2 more answers

5 less than the quotient of a number and 3 is -7

hram777 [196]

$\frac{x}{3}$ - 5 = -7 .
____________________________________________
This would be one way to write the expresion/equation; in which "x" represents the unknown number.

Now, to solve for "x" ;
____________________________________________
Given:
____________________________________________
$\frac{x}{3}$ - 5 = -7 ;

Add "5" to EACH SIDE of the equation:
_____________________________________________
$\frac{x}{3}$ - 5 + 5 = -7 + 5 ;

to get:

$\frac{x}{3}$ = -2 ;

x = (-2 * 3) ;
_________________________________
x = - 6 .
_________________________________

6 0

3 years ago