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mel-nik [20]
3 years ago
11

Which expression means three minus the product of two times a and five?​

Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

3-(2a)(5)

Step-by-step explanation:

we know that

The algebraic expression of the phrase "three minus the product of two times a and five" is equal to

3-(2a)(5)

3-10a

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Rationalise the denominator.
grin007 [14]

Let's see what to do buddy...

_________________________________

To do this, we have to multiply the face and denominator of the fraction by the denominator conjunction, which is :

(5 -\sqrt{2})

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

Reminder :

(a + b)(a - b) =  {a}^{2} -  {b}^{2}  \\

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

So we have :

\frac{1}{ 5-\sqrt{2} } \times  \frac{ 5+\sqrt{2}  }{ 5 +\sqrt{2}  } =  \frac{1 \times ( 5 +\sqrt{2}) }{(5- \sqrt{2} )( 5 +\sqrt{2})  } =  \\

The other is in the photo.

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

7 0
3 years ago
URGENT!! What is the surface area of a dome (a half sphere) with a radius of 6 meters?
Galina-37 [17]

Answer:

No

Step-by-step explanation:

Cause

7 0
3 years ago
Evaluate 23x + 4y when x=20 and y=23
never [62]

Answer:

552

Step-by-step explanation:

23x + 4y when x=20 and y=23

if x=20 and y=23 all you have to do is replace the numbers and solve

23(20) + 4(23)

Multiply 23*20 which is equal to 460

Then you multiply 4*23 which is equal to 92

The problem is now 460 + 92

add it, and you get 552.

Hope this helps!!

-Ketifa

3 0
3 years ago
Shoshana has 5/6 foot of string. greg has 3/4 as much. shoshana multiplies 5/6 by 3/4 to find out has much greg has who has more
Reptile [31]
Shoshana has more string than greg does.
8 0
3 years ago
A pair of designer sneakers was purchased for $120.
Brums [2.3K]

Answer:the price now is $128

Step-by-step explanation:

you can get this by dividing the cost by the percentage it has risen by. For example: 120 / 15 = 8 and then you add 8 to the initial price

6 0
2 years ago
Read 2 more answers
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