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3 years ago

Help need to pass class and iready

Mathematics

1 answer:

BartSMP [9]3 years ago

8 0

Answer:

$\Large\boxed{\sf{y > 32}}$

Step-by-step explanation:

To get the final answer, isolate the variable y on one side of the equation.

First, multiply by 4 from both sides.

$\Longrightarrow: \sf{4*\dfrac{1}{4}y\geq 8*4 }$

Solve.

8*4=32

$\boxed{\sf{y\geq 32}}$

Therefore, the correct answer is D.

I hope this helps, let me know if you have any questions.

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What is a decomposition reaction?

yaroslaw [1]

Answer:

11-6√3 = a -b√3

where a=11 and b =6

Step-by-step explanation:

Step(i):-

Given

$\frac{5+2\sqrt{3} }{7+4\sqrt{3} }$

Rationalize

= $\frac{5+2\sqrt{3} }{7+4\sqrt{3} } X \frac{7-4\sqrt{3} }{7-4\sqrt{3} }$

= $\frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{7^{2} -(4\sqrt{3})^{2} }$

= $\frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{49-16(3) }$

= $\frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{1 }$

Step(ii):-

Multiply

${(5+2\sqrt{3})(7-4\sqrt{3} ) }$

= 5 × 7 - 5×4√3 + 2√3 ×7 - 2√3 × 4√3

= 35 -20√3+ 14√3-8×3

= 35 - 6√3 -24

= 11-6√3

6 0

3 years ago

Plz help plz plz plz plz

Likurg_2 [28]

Answer:

Step-by-step explanation:

The ratio of green : pink = 32 : 56 = 4 : 7

After 7 pink are given away, then

ratio = ? : 49 = 4 : 7 ← ratio has to be the same

Using proportion

$\frac{?}{4}$ = $\frac{49}{7}$ ( cross- multiply )

7? = 196 ( divide both sides by 7 )

? = 28

Thus the ratio = 28 : 49 = 4 : 7

Thus 32 - 28 = 4 green should be given

3 0

3 years ago

YOU WILL GET BRAINLIEST!! 20 POINTS

Mariana [72]

Answer:

Step-by-step explanation:

6⁻︎¹(4⁻︎²)

1/6x1/4 2

1/6 x 1/16

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4 0

3 years ago

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Noelle used synthetic division to evaluate a function f(x) at 3, as shown

Harman [31]

From the synthetic division, f(3) = 13

4 0

4 years ago

In the pendulum formula , we use g = 9.8 m/s2 for the acceleration due to gravity on Earth. But what about on the Moon? If an as

Alex Ar [27]

Answer:

The acceleration due to gravity on the moon is 1.642 m/s².

Step-by-step explanation:

Given : In the pendulum formula , we use g = 9.8 m/s2 for the acceleration due to gravity on Earth. If an astronaut on the surface of the moon swings a 1-meter long pendulum, and it has a period of 4.9 seconds.

To find : What is the acceleration due to gravity, g, on the moon?

Solution :

The pendulum formula is $T=2\pi \sqrt{\frac{L}{g}}$

where, T is the time period,

L is the length of the pendulum,

g is the acceleration due to gravity

We have to find the value of g acceleration due to gravity on the moon.

The formula became,

$g'=(\frac{2\pi}{T})^2\times L$

Substitute T=4.9 seconds , L= 1 m

$g'=(\frac{2\times 3.14}{4.9})^2\times 1$

$g'=(\frac{6.28}{4.9})^2$

$g'=\frac{39.4384}{24.01}$

$g'=1.642$

The acceleration due to gravity on the moon is 1.642 m/s².

5 0

4 years ago

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