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seropon [69]
3 years ago
13

Find the difference

Mathematics
2 answers:
jok3333 [9.3K]3 years ago
5 0

Answer:

The answer to this question is: B [-2√5]

Step-by-step explanation:

First, Find both numbers that can accommodate with each of the radicals.

√20

10 and 2

5 and 2 and 2

√80

10 and 8

5 and 2 and 4 and 2

5 and 2 and 2 and 2  and 2

After this is what they'll look like.

√5,2,2 - √5,2,2,2,2

Group numbers of pairs

√5,<u>2,2 </u>- √5,<u>2,2</u>,<u>2,2</u>

<u>For every pair, bring out the #'s, but only one survives, and comes out.</u>

2√5 - 4√5

= -2√5

This is your answer! Hope this helped!

Georgia [21]3 years ago
3 0

Answer:

The answer is 2\sqrt{5

Step-by-step explanation:

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A box contains 16 large marbles and 18 small marbles. Each marble is either green or white. 9 of the large marbles are green, an
vfiekz [6]

Answer:

P(S&G) =0.7941

Step-by-step explanation:

From the question we are told that:

Sample size n=16+18=>34

N0 of  Large L=16

N0 of Small S=18

N0 large Green L_g=9

N0 of small White S_w=3

Therefore

Number of green marbles N0(G)=9+(18-3)

Number of green marbles N0(G)=24

Generally the Number of both small and green Marble is

N0 of (S&G)= 18 - 3 = 15

Generally the  probability that it is small or green P(S&G) is mathematically given by

P(S&G) = \frac{(18 + 24 - 15)}{(18 + 16)}

P(S&G) =0.7941

8 0
3 years ago
A herd of horses split and went to three areas. One fourth of the herd of horses was seen in the forest. Twice the square root o
melamori03 [73]

Answer:the total number of horses in the herd is 36

Step-by-step explanation:

Let x represent the total number of horses in the herd.

One fourth of the herd of horses was seen in the forest. This means that the number of horses that was seen in the forest would be

1/4 × x = x/4

Twice the square root of the herd had gone to the mountain slopes. This means that the number of horses that had gone to the mountain slopes would be

2 × √x = 2√x

Three times five horses remained on the riverbank. This means that the number that remained would be

3 × 5 = 15

Therefore

x/4 + 2√x + 15 = x

x - x/4 - 15 = 2√x

(4x - x - 60)/4 = 2√x

(3x - 60)/4 = 2√x

Cross multiplying,

3x - 60 = 8√x

Squaring both sides of the equation, it becomes

(3x - 60)(3x - 60) = 64x

9x² - 180x - 180x + 3600 = 64x

9x² - 360x - 64x + 3600 = 0

9x² - 424x + 3600 = 0

Applying the quadratic equation

x = (- b ±√b² - 4ac)/2a

x = ( - - 424 ± √-424² - 4(9 × 3600)/2 × 9

x = (424 ± √179776 - 129600)/18

x = (424 ±√50176)/18

x = (424 + 224)/18 or

x = (424 - 224)/18

x = 36 or x = 11.11

the number of horses must be whole number. Therefore, the number of horses is 36

5 0
3 years ago
How do you find the answer to 10 to the power of negative 2
viva [34]
Either add or multiply I think
8 0
3 years ago
Read 2 more answers
Solve the equation for S.<br> 8<br> T = 7 S + 28
brilliants [131]

Answer:

t-28/7=s

Step-by-step explanation:

t-28=7s

t-28/7=s

6 0
3 years ago
Write an exponential function in the form y = ab" that goes through points (0,19)<br> and (6, 1216).
Elanso [62]

The exponential function is y=19*2^x

Step-by-step explanation:

The exponential function in the form of y=ab^{x}

First find the value of a and b if x=0 and y=19

y=ab^x\\\\19=ab^0\\\\\\19=a*1\\\\\\19=a

Find the value of b in y=ab^x

where x=6,y=1216  and a=19

1216=19b^6\\\\\\1216/19=b^6\\\\\\64=b^6\\\\\sqrt[6]{64} =b\\\\2=b

The function is y=19*2^x

Learn More

Exponential function :brainly.com/question/11925273

Keywords : exponential function

#LearnwithBrainly

4 0
3 years ago
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