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3 years ago

Please help, will give brainliest!

Mathematics

1 answer:

e-lub [12.9K]3 years ago

6 0

Answer:

Reflect shape A on the line y=-1

Step-by-step explanation:

None needed you get full marks from the sentence above :)

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Express the following linear equations in the form ax+by+c= 0 and indicate the values of a, b and c in each case: (1) y = x/5

EleoNora [17]

Answer:

Did the question get cut off?

a = -(1/5)

b = 1

c = 0

Step-by-step explanation:

y = x/5 may be rewritten as y = (1/5)x

y = (1/5)x

y - (1/5)x = 0

- (1/5)x + y + 0 = 0

ax + by + c = 0

a = -(1/5)

b = 1

c = 0

8 0

2 years ago

What is 3x(2-4x) pls i need help

Pachacha [2.7K]

Answer:

6x−12x^2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The population of a city grows exponentially at rate of 8% per year.Find the number of years it takes for the population to be d

Ilya [14]

Answer:

It will take 9 years for the population to double

Step-by-step explanation:

Exponential Growth

The natural growth of some magnitudes can be modeled by the equation:

$P=P_o(1+r)^t$

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The population of a city grows at a rate of r=8% = 0.08 per year. We are required to find when (t) the population will double, or P=2Po.

Substituting in the equation:

$2P_o=P_o(1+0.08)^t$

Simplifying:

$2=(1.08)^t$

Taking logarithms:

$\log 2=\log (1.08)^t$

Applying the exponent property of logs:

$\log 2=t\log (1.08)$

Solving for t:

$\displaystyle t=\frac{\log 2}{\log (1.08)}$

Calculating:

$t\approx 9$

It will take 9 years for the population to double

8 0

3 years ago

The area of a triangle varies jointly with the lengths of its base and height. A triangle with a base of 10 ft and a height of 4

Assoli18 [71]

Answer:

<h2>12 square ft </h2>

Step-by-step explanation:

<h3>base = 3ft. and height = 8ft. </h3><h3>area of triangle = 1/2 ×base × height</h3><h3> = 1/2 ×3 × 8</h3><h3> = 24 /2</h3><h3> = 12 square ft. </h3>

<h2>MARK ME AS BRAINLIST</h2><h3>PLZ FOLLOW ME</h3>

3 0

3 years ago

Find the equation of the plane through the point p=(5,5,4)p=(5,5,4) and parallel to the plane 5x+2y−z=−6.

Anna35 [415]

The unit normal for the given plane is <5,2,-1>.
The equation of the plane parallel to the given plane passing through (5,5,4) is therefore
5(x-5)+2(y-5)-1(z-4)=0
simplify =>
5x+2y-z=25+10-4=31

Answer: the plane through (5,5,4) parallel to 5x+2y-z=-6 is 5x+2y-z=31

7 0

3 years ago