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3 years ago

77.7 repeating as a fraction

Mathematics

1 answer:

Alborosie3 years ago

6 0

Answer:

it is 77 7/10

Step-by-step explanation:

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* WILL GIVE BRAINLIEST* (06.04 LC)

sleet_krkn [62]

This is in slope-intercept form, y=mx+b. m is the slope (b is the intercept). So the slope here is 8.

3 0

3 years ago

What the answer <br>2a+4>12

zalisa [80]

Subtract 4 from both sides.

2a+4>12

2a>8

Divide by 2.

a>4

I hope this helps!

Brainliest answer is always appreciated!

4 0

3 years ago

a barangay has 1000 individuals and its population doubles every 60 years. Give an exponential model for the barangay's populati

sdas [7]

Answer:

P(t) = 1000e^(0.01155)t

Step-by-step explanation:

Let the population of barangay be expressed according to the exponential formula;

P(t) = P0e^kt

P(t) is the population of the country after t years

P0 is the initial population

t is the time

If barangay has 1000 initially, this means that P0 = 1000

If the population doubles after 60years then;

at t = 60, P(t) = 2P0

Substitute into the formula

2P0 = P0e^k(60)

2 = e^60k

Apply ln to both sides

ln2 = lne^60k

ln2 = 60k

k = ln2/60

k = 0.01155

Substitute k = 0.01155 and P0 into the expression

P(t) = 1000e^(0.01155)t

Hence an exponential model for barangay's population is

P(t) = 1000e^(0.01155)t

7 0

3 years ago

The cost for three copies of a book is $38.85. Estimate the cost for one book. Do you think your estimate is higher or lower? Ex

erica [24]

If you round 38.85 to $39 then divide by 3 you'd get $13 each. This would be a little high since we rounded the 38.85 UP

6 0

3 years ago

What is the equation of the following graph?

boyakko [2]

Answer:

$\frac{(x-1)^2}{5^2} -\frac{(y-2)^2}{2^2} =1$

Step-by-step explanation:

Here you are require to find the equation of the hyperbola given that the center (h,k), the coordinates of the vertices and those of the co-vertices can be determined from the diagram given

The sharp turning points of the curves give the vertices at (-4,2) and (6,2)

Joining the vertices with a straight line will form the transverse axis with length 2a .

To find the length of the transverse axis 2a will be ; 6--4=10. 2a=10 hence a=10/2 =5

a=5

Find the center of the hyperbola at (h,k) by finding the intersecting point of the diagonals of the rectangle in the diagram

The center identified will be (h,k) = (1,2)

To find the length of the conjugate axis 2b will be ; the length between points (1,4) and (1,0) which are the coordinates of the co-vertices in the hyperbola. 2b= 4-0=4 , b=4/2 = 2

b=2

The standard equation of the hyperbola with center (h,k) is written as ;

$\frac{(x-h)^2}{a^2} -\frac{(y-k)^2}{b^2} =1$

where (h,k) is center of hyperbola, (h±a,k) is coordinate of the vertices and (h,k±b) are coordinates of co-vertices.

Substitute values of a, b, h, and k in equation as

$\frac{(x-1)^2}{5^2} -\frac{(y-2)^2}{2^2} =1$

7 0

3 years ago