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Natali5045456 [20]
3 years ago
9

Rationalise this please........it's verey imp to me....​

Mathematics
1 answer:
dalvyx [7]3 years ago
3 0

Step-by-step explanation:

i) root3 + root5 × 2root5 / 2root5 × 2root5

= 2root15 + 10 / 20

ii) root3 - root7 × root3 - root7 / root3 + root7 × root3 - root7

= 3 - 2root21 + 7 / 3 - 7

= 10 - 2root21 / -4

= -10 - 2root21 / 4

iii) root2 + root7 × 2root2 + root3 / 2root2 - root3 × 2root2 + root3

= 4 + 2root14 + root6 + root21 / 8 - 3

= 4 + 2root14 + root6 + root21 / 5

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Evaluate.
tekilochka [14]

Step-by-step explanation:

W=-6, x=1.2, and z=-6/7

(W²x-3)÷10-z

we substitute

((-6²)(1.2)-3)÷10-(-6/7)

((-36)(1.2)-3) ÷10-(-6/7)

(-43.2-3) ÷10(6/7)

(-46.2)÷60/7

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8 0
3 years ago
16% of what equals 44?
Tatiana [17]
44 is 16% of 275. 275 times 0.16 is 44
3 0
3 years ago
Which of the following is a logarithmic function?
Komok [63]

Answer:

A) y = log_{3}(x) is  logarithmic function.

Step-by-step explanation:

Given : Options.

To find : which of the following is a logarithmic function.

Solution : We have given option

Logarithmic function : The function which have log init.

We can see from given options

y = log_{3}(x) is  logarithmic function.

Therefore, A) y = log_{3}(x) is  logarithmic function.

4 0
3 years ago
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4 0
2 years ago
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20(20-x)=300 what is x
neonofarm [45]

Answer:

x = 5

Step-by-step explanation:

20(20-x)=300

1. Divide both sides by 20.

20(20-x)/20 = 300/20

2. Simplify.

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3. Subtract 20 from both sides.

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4. Simplify.

-x=-5

5. Divide both sides by -1.

-x/-1 = -5/-1

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x=5

5 0
3 years ago
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