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3 years ago

Simplify √ 105 . A. 2√ 3 B. √ 105 C. 2√ 7 D. √ 42

2 answers:

8 0

$B. \sqrt{105}$

The multiples of 105 are 3,5,and 7 so none of them can come out of the square root so it cannot be simplified.

VashaNatasha [74]3 years ago

5 0

Answer:

The answer is the option B

$\sqrt{105}$

Step-by-step explanation:

we have

$\sqrt{105}$

we know that

$105=3*5*7$

substitute

$\sqrt{105}=\sqrt{3*5*7}$ -------> it can not be simplified

therefore

the answer is

$\sqrt{105}$ ----> the expression can not be simplified

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What is 3x+8 if x=8

Mazyrski [523]

Answer:

y=32

Step-by-step explanation:

y=3(8)+8

y=24+8

24+8=32

y=32

4 0

3 years ago

Read 2 more answers

Alice and Bob are currently 1000 feet apart and are both running directly

zepelin [54]

The distance the bird has flown by the time Alice and Bob meet is 40 feet.

Given that the distance between Alice and Bob is 1000 feet and their running speed is 10 feet per second and the speed of bird is 20 feet per second.

Distance equals speed multiplied by time.

Distance between Alice and Bob=1000 feet.

Distance between the bird and Bob=1000 feet.

Speed of Alice and Bob=10 feet per second.

The combined speed of Alice and Bob=20 feet per second.

Since the two are running directly toward each other the distance each will cover at the meeting point is 50 feet (1000/20)

The time covered at the meeting point=20 second (1000/50)

Speed of the bird=20 feet per second.

The distance covered by the bird towards Bob at their meeting point is 40 feet(20 feet*20 seconds).

Hence the distance the bird has flown by the time Alice and Bob meet is 40 feet.

Learn more about distance at brainly.com/question/2854969

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3 0

2 years ago

Order of operations, step by step 56-12 / 6+4

icang [17]

Answer:

Step-by-step explanation:

Order of operations:

Parentheses
Exponents
Multiplication-Division
Addition-Subtraction

Solve:

56-12 / 6+4

56 - (12/6) +4 { No Multiplication but do have Division} (12/6 = 2)

56 - 2 + 4 {Subtraction ⇒ 56-2 = 54}

54 + 4 { Addition ⇒ 54 + 4 = 58}

Answer = 58

[RevyBreeze]

7 0

2 years ago

Choose the equation of the horizontal line that passes through the point (−2, −1). (4 points)

Anni [7]

Answer:

y=-1 : )

Step-by-step explanation:

(Brainliest Please)

8 0

2 years ago

Find the area of each parallelogram plz help

xxTIMURxx [149]

Answer: The area of the parallelogram is:
_______________________________________________________
$\frac{9393}{8}$ in² = 1174 ⅛ in² = 1174.125 in² .
_______________________________________________________
Explanation:
_______________________________________________________
Area of a parallelogram:
_______________________________________________________
A = base * height = b * h ;

From the figure (from the actual "question"):
_______________________________________
b = 50.5 in.

h = 23.25 in.
____________________________________________________________
Method 1) A = b * h =

= (50.5 in) * (23.25 in) = 1174.125 in² ; or, write as: 1174 ⅛ .
____________________________________________________________
Method 2) A = b * h =

= (50 ½ in) * (23 ¼ in) =

= ( $\frac{101}{2}$ in) * ( $\frac{93}{4}$ in) ;
___________________________________________________________
Note: "50 ½ " = [(50*2) + 1 ] / 2 = $\frac{101}{2}$ ;

Note: "23 ¼ " = [(23*4) + 1 ] / 4 = $\frac{93}{4}$ ;
____________________________________________________________
→ A = ( $\frac{101}{2}$ in) * ( $\frac{93}{4}$ in) ;

→ A = $\frac{(101*93)}{(2*4)}$ in² = $\frac{9393}{8}$ in² ;

→ A = (9393/8) in² =

→ A = $\frac{9393}{8}$ in² = 1174 ⅛ in² = 1174.125 in² .
________________________________________________________

5 0

3 years ago