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3 years ago

Solve: 14y = 7 i really need help

Mathematics

2 answers:

Yanka [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Isolate y on one side of the equation.

14y/14=7/14 (First, divide by 14 from both sides.)

7/14 (Solve.)

7/14=1/2

1/2=0.5

y=1/2=0.5

The correct answer is y=1/2=0.5.

tatyana61 [14]3 years ago

4 0

Answer:

y= .5

Step-by-step explanation: to seperate 14 times y, do 14 divided by 14 y and 7 divided by 14 to get y=.5

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If f(x)= x^2+x and h(x)=5x-2 find f(f(2))

alexandr1967 [171]

<h3>Answer: 2f^2 </h3>

Step-by-step explanation:

Remove the parentheses: = ff x 2

Apply exponent rule: f^1+^1x2

Add the numbers 1+1=2 = 2f^2

I hope this is right.

7 0

3 years ago

Solve the equation for y

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3 years ago

Which expression is equivalent to (16x^8y^-12)^1/2

MAVERICK [17]

Answer:

The equivalent expression is $\Rightarrow \dfrac{4x^4}{y^6}$

Step-by-step explanation:

Given: $(16x^8y^{-12})^{1/2}$

We need to simplify the expression. We will distribute radical with each term inside the parentheses.

$\Rightarrow (16x^8y^{-12})^{1/2}$

Distribute the radical

$\Rightarrow 16^{1/2}\cdot x^{8\cdot 1/2\cdot y^{-12\cdot 1/2}$

$\Rightarrow 4\cdot x^4\cdot y^{-6}$

$\Rightarrow 4x^4y^{-6}$

Now we will simplify the negative exponent.

$\Rightarrow \dfrac{4x^4}{y^6}$

Hence, The equivalent expression is $\Rightarrow \dfrac{4x^4}{y^6}$

8 0

3 years ago

The height of a sunflower increases from 160cm to 2 metres in a week. Find the percentage increase in height

Assoli18 [71]

Answer:

25%

Step-by-step explanation:

We are given that

Initial height of sunflower=160 cm

After increasing

Final height of sunflower=2m

We have to find the percentage increase in height.

1 m=100 cm

$2m=2\times 100=200cm$

Increase in height of sunflower=Final height of sunflower-initial height of sunflower

Increase in height of sunflower=200-160=40cm

Percentage increase= $\frac{Increase\;value}{Initial\;value}\times 100$

Using the formula

Percentage increase in height= $\frac{40}{160}\times 100$

Percentage increase in height=25%

4 0

3 years ago

Let f(x) = 8x - 3 What is f(5)?

zalisa [80]

Answer:

Step-by-step explanation:

To find the answer to this equation, we need to substitute 5 into where x is in the original equation.

f(x) = 8x-3

f(5) = 8(5)-3

f(5)= 40-3

f(5)= 37

and that's it! no further simplifying.

6 0

3 years ago