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4 years ago

8

A semicircular flower bed has a diameter of 3 metre.

1 answer:

vesna_86 [32]4 years ago

8 0

All you have to do is find the area of the flower bed if it was a circle using (pi)r^2 and then divide by 2,

d=2r 3=2r, r=1.5

the area of the circular flower bed is (pi)(1.5)^2

Semicircular : [ (pi)(1.5)^2 ] / 2

This, rounded to the nearest decimal place is 3.5m^2

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Fully Factorise 3x-12

artcher [175]

Answer:

3(x-4)

Step-by-step explanation:

3×4=12 and 3 also goes into 3x

7 0

3 years ago

Slope intercept form of a line that has a slope of -3/4 and passes through (4, 3)

tia_tia [17]

<h3><u>Explanation</u></h3>

First Method

We have the given slope value and the coordinate point that the graph passes through.

$y = mx + b$

where m = slope and b = y-intercept. Substitute the value of slope in the equation.

$y = - \frac{3}{4} x + b$

We have the given coordinate point as well. After we substitute the slope, we substitute the coordinate point value in the equation.

$3 = - \frac{3}{4} (4) + b \\$

<u>Solve</u><u> </u><u>the</u><u> </u><u>equation</u><u> </u><u>for</u><u> </u><u>b-term</u>

$3 = - 3 + b \\ 3 + 3 = b \\ 6 = b$

The value of b is 6. We substitute the value of b in the equation.

$y = - \frac{3}{4} x + 6$

Second Method

We can also use the Point-Slope form to solve the question.

$y - y_1 = m(x - x_1)$

Given the y1 and x1 = the coordinate point value.

Substitute the slope and coordinate point value in the point slope form.

$y - 3 = - \frac{3}{4} (x - 4)$

<u>Simplify</u><u>/</u><u>Convert</u><u> </u><u>into</u><u> </u><u>Slope-intercept</u>

$y = - \frac{3}{4} (x - 4) + 3 \\ y = - \frac{3}{4} x + \frac{12}{4} + 3 \\ y = - \frac{3}{4} x + 3 + 3 \\y = - \frac{3}{4} x + 6$

<h3><u>Answer</u></h3>

<u> $\large \boxed {y = - \frac{3}{4} x + 6}$ </u>

6 0

3 years ago

URGENT!!!Can someone give me the answer and explanation plz

mafiozo [28]

Answer: D

Step-by-step explanation: Divide 110 and 1700 to get 15 then multiply that 15 with 110 to get 1600. I hope this helps ;)

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4 years ago

A broken calculator can double any number or permute its digits (but 0 cannot go up front). Can we start with number 1 and obtai

stira [4]

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starting with number 1

1, 2, 4, 8, 16, 32, 64, 128

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3 years ago

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morpeh [17]

E is the answer I am pretty sure.

4 0

2 years ago