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liq [111]
3 years ago
15

Find the value of y. 7 х 3 Z y = V[?] Give your answer in simplest form.

Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer:

21

Step-by-step explanation:

By geometric mean theorem:

{y}^{2}  = 7 \times 3 \\  \\  {y}^{2}  = 21 \\  \\  \huge \: y =  \sqrt{ \boxed{21}}

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7/8 = _ x _/8 Find the missing values for the multiplication equation
Bumek [7]
<span>A whole number is multiplied to a fraction by multiplying the whole number to numerator of the fraction while retaining the denominator of the fraction 7/8 = (7 x 1)/8 = 7 x 1/8. The number missing in the 1st blank is 7 while the number missing in the second blank is 1.</span>
6 0
3 years ago
Which sentence would be a good counter example to this statement ?
ArbitrLikvidat [17]

Answer:

The answer is "Option D".

Step-by-step explanation:

A line is a horizontal 1D-dimensional representation without any thickness and extends in every way. It sometimes is also known as the straight line. The line, which connects two planes lies simultaneously on both planes, that's why in this question only "option D" is correct.

8 0
3 years ago
Simplify a5 ÷ a4, a ≠ 0.<br> A) 5a<br> B) a<br> C) 4a<br> D) 1
wel
I assume you mean a^5 divided by a^4. This is a rule that applies to all exponents in that when you divide exponents, you subtract the top from the bottom. So, 5-4 is 1 and that would the answer is b
8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx-3%7D%7Bx%2B2%7D%20%3D%5Cfrac%7B1%7D%7B5%7D" id="TexFormula1" title="\frac{x-3}{x+2
Shkiper50 [21]

Answer:

x=17/4

Step-by-step explanation:

(x-3)/(x+2)=1/5

cross product

1(x+2)=5(x-3)

x+2=5x-15

5x-x-15=2

4x-15=2

4x=2+15

4x=17

x=17/4

3 0
3 years ago
Use synthetic division to show that the number given to the right of the equation is a solution of the equation. Then solve the
AysviL [449]

Answer:

x = 2 \: or \: x =  - 2 \: or \: x =  -  \frac{1}{2}

Step-by-step explanation:

The given polynomial equation is

2 {x}^{3}  +  {x}^{2}  - 8x - 4 = 0

We perform the synthetic division as shown in the attachment by dividing by x-2.

This gives a remainder of 0 and a quotient of

2 {x}^{2}  + 5x + 2

This means the polynomial equation becomes:

(x - 2)(2 {x}^{2}  + 5x + 2) = 0

We factor the quadratic term by splitting the middle term;

(x - 2)(2 {x}^{2}  + 4x +x +  2) = 0

(x - 2)(2 x(x+ 2) +1(x +  2) )= 0

Collect common factors again:

(x - 2)((x+ 2)(2x +  1) = 0

The solution is:

x = 2 \: or \: x =  - 2 \: or \: x =  -  \frac{1}{2}

8 0
4 years ago
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