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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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Solve the equation <br> 2 ( a + 10) = 56
Hatshy [7]
Answer: a = 18

explanation:
2(a + 10) = 56 -> distribute the 2
2a + 20 = 56 -> subtract 20 from both sides
2a = 56 - 20
2a = 36 -> divide both sides by 2
a = 18
3 0
3 years ago
In simplified exponential notation, the expression x^3•x^-4•x=
alexandr1967 [171]
Since all of the bases (x) are equal you just add the exponents.

(The x has an exponent of 1)

3 + -4 + 1

-1 + 1

0

Since the answer is 0 it is x^0

And any number or variable set to the power of 0 equals 1, therefore...

ANSWER: x^3 • x^-4 • x = 1

Hope this helps!
6 0
3 years ago
Marco has $400. Each week, Marco adds $5 to his bank account.
lesantik [10]

Answer:

I'm pretty sure it's 400w+5=s

Step-by-step explanation:

400w because thats how much he earns each week +5 because that's how much he added =s which equals the total cost in his savings

5 0
3 years ago
Will mark brainliest help!
kakasveta [241]

Answer:

52.5

Step-by-step explanation:

Since ED ≈ AD, ∆AED is a isosceles triangle where <EAD and <AED has same angle measurement

Now, m<B = 105°, since ABCD is a parallelogram, <B = <D

so, m<ADC = 105° so, m<ADE = 180°-105° = 75°

Now, m<EAD+m<AED+m<ADE = 180°

or, m<AED+m<AED+m<ADE = 180°

or, x+x+75°=180°

or, 2x=180+75°

or, 2x=105°

or, x=52.5°

3 0
2 years ago
How many feet are 8 2/3 (in fractions)
11Alexandr11 [23.1K]
<span>8.66666666666. I'm not sure if there are any more 6's.</span>
3 0
3 years ago
Read 2 more answers
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