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3 years ago

Please help! Tysm! Picture of figure is attached.

Mathematics

1 answer:

miss Akunina [59]3 years ago

8 0

Step-by-step explanation:

Notice that KM = 0.5BC, KL = 0.5AC

and ML = 0.5AB. Therefore the perimeter of triangle KLM is half of the perimeter of triangle ABC. => 0.5 * 24cm = 12cm.

Each of the 3 purple triangles have perimeters which are 1/4 of the perimeter of triangle ABC. (Their vertices are midpoints of midpoints => 1/2 * 1/2)

Perimeter of 3 small purple triangles

= 3 * [24cm * (1/4)]

= 3 * 6cm = 18cm.

Hence Total perimeter of shaded parts

= 12cm + 18cm = 30cm.

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What is the probability of spinning these two spinners and having each one land

asambeis [7]

Answer:

The probabilities are 0.4 and 0.6 respectively.

Step-by-step explanation:

We are given two spinning wheels with numbers on it and we have to find the probability of getting 3.

In the first wheel, there are 5 slots and the numbers are 3, 3, 2, 5 and 4.

So the probability of getting 3 = $\frac{number of 3's}{total number of slots}$

= $\frac{2}{5}$

= 0.4

In the second spinner there are three 3's and total of 5 slots.

So probability of getting 3 = $\frac{number of 3's}{total number of slots}$

= $\frac{3}{5}$

= 0.6

Hence the probabilities are 0.4 and 0.6 respectively.

3 0

3 years ago

Which expression is equivalent to 4(x+2)?<br> 6x<br> 4(x)+4(2)<br> 4x)+4<br> 8x

vlada-n [284]

The expression that is equivalent to 4(x+2) is 4(x)+4(2)

7 0

3 years ago

Read 2 more answers

To find a reciprocal of a fraction, switch the numerator and denominator.

Aleks [24]

The reciprocal of -1/3 is -3/1
and the reciprocal of 4/1 is 1/4

6 0

4 years ago

Please help! number 23

tester [92]

If it's the way that I do it I should mostly likely be 15

8 0

3 years ago

I need help with finding the area to this Triangle. This is Geometry by the way.

ycow [4]

Answer:

9 sq. units

Step-by-step explanation:

dimensions of rectangle are (7-3),(8-3)

or 4,5

area of rectangle=4×5=20

area of bottom Δ=1/2×4×2=4

area of top Δ=1/2×3×3=9/2

area of right triangle=1/2 ×5×1=5/2

area of Δ HIJ=20-(4+9/2+5/2)

=20-(4+14/2)

=20-(4+7)

=9 sq. units.

or area of triangle =1/2

| 3 5 |

| 7 3 |

|6 8 |

|3 5 |

=1/2[(9-35)+(56-18)+(30-24)]

=1/2[-26+38+6]

=1/2[-26+44]

=1/2(18)

=9 sq. units.

8 0

3 years ago