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Slav-nsk [51]
4 years ago
15

Is not b please someone help me

Mathematics
1 answer:
Advocard [28]4 years ago
8 0
√j+√j+14=3√j+10
2√j+14=3√j+10
minus 2√j both sides
14=√j+10
minus 10 both sides
4=√j
squaer both sides
16=j

answer is D, 16
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a teacher takes 15minutes to mark one question paper. how many hours will he take to mark 40 question papers?​
garri49 [273]

Answer:

3 question papers

Step-by-step explanation:

If the teacher takes 15 minutes to mark 1 question paper. Then they will probably take 30 minutes to grade 2 question paper. Because 15 minutes+15 minutes=30 minutes. Then if you and another 15 minutes which will be 40 minutes because 15 minutes+15 minutes+15 minutes=40 minutes.

Hence, the teacher will mark 3 question papers in 40 minutes

6 0
2 years ago
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0.124<br><img src="https://tex.z-dn.net/?f=0.124five%20%5C%3A%20base%20%5C%3A%20two%20" id="TexFormula1" title="0.124five \: bas
Sveta_85 [38]

Let <em>x</em> be the number equal to 0.124₅, so that

<em>x</em> = 1•5⁻¹ + 2•5⁻² + 4•5⁻³

Multiply <em>x</em> by 5³ to convert it to a whole number:

5³<em>x</em> = 1•5² + 2•5¹ + 4•5⁰

Convert everything to base 2:

5³ = 125 = 64 + 32 + 16 + 8 + 4 + 1 = 1111101₂

1•5² + 2•5¹ + 4•5⁰ = 25 + 10 + 4 = 39 = 32 + 4 + 1 = 100111₂

Then

1111101₂ <em>x</em> = 100111₂

so that

<em>x</em> = 100111₂ / 1111101₂

I've carried out the first several steps in the division in the attached table, with more bits added to the result. The number in base 2 does not terminate. You end up with approximately

0.010011111101111100111...₂

8 0
3 years ago
10 x 5 thousands standard form
jeka94

Answer: 10*5,000=50,000

Step-by-step explanation:

By definition, when you multiply two factors the result is known as "Product".

In this case you have to solve the following multiplication:

10*5\ thousands

The first factor is already written in Standard form, but the second one is not written in Standard form.

Then, you need to rewrite it in numbers:

5\ thousands=5,000

Therefore, the product is:

10*5,000=50,000

3 0
4 years ago
X-2/y = 4 ; 2x + 3/y =1
ivanzaharov [21]

Answer:

(x,y)=(2,-1)

Step-by-step explanation:

2(4 +  \frac{2}{y} ) + 3 \div y = 1

y =  - 1

x = 4 +  \frac{2}{ - 1}

x = 2

then verify

8 0
3 years ago
Divide. give the quotient and remainder<br> 2746/6
KIM [24]

Answer:

On the image

Step-by-step explanation:

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