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2 years ago

10 POINTS

Mathematics

2 answers:

dmitriy555 [2]2 years ago

8 0

Answer:

The scale factor is 0.4 - FALSE; The scale factor is 2.5 - TRUE

Step-by-step explanation:

Since the arrow points from the smaller rectangle to the larger one, this means the scale factor must be greater than 1, since the figure is enlarged.

To find the factor that the figure is enlarged, divide the resulting length by the original length:

5/2 = 2.5

podryga [215]2 years ago

6 0

Take the length of the larger divide it by the smaller

5/2 = 2.5

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A television company charges $60 for the first half-hour of work and $40 for each additional hour. Blue mountain camp has budget

Alexandra [31]

Answer:

For a length of total of 4 hrs, the budget of $200 will not exceed.

Step-by-step explanation:

Here, the first half hour charge for repairing = $60

The next hour charge = $40 her hour

Total budget to be spent by Blue Mountain Camp = $200

Now, here, the cost of 0.5 hour = $60

So, the amount left after 0.5 hour repair = $200 - $60 = $140

Let us assume we can hire the service for m hours in $140

Cost of 1 hour charge = $40

Cost of m hour charge = m X ( 1 hour charge) = m x ($40) = 40 m

⇒ 40 m = 140

or, m= 140/40 = 3.5, or m = 3.5

⇒ In $140 left, they can get a service of 3.5 hours at $40 per hour.

Now, the total hours of services hired = 0.5 hour in $60 + 3.5 hr in $140

= 0.5 hr + 3.5 hr = 4 hrs

Hence, for a length of total of 4 hrs, the budget of $200 will not exceed.

4 0

2 years ago

Find the area of the trapezoid. Pls explain and I will mark brainliest.

timama [110]

Answer:

B. 191.4 m²

Step-by-step explanation:

Split the trapezoid as pictured below

Find its height and the upper base, then find the area of the trapezoid.

There are 3 pieces, two of them are 45°×45° and 30°×60°×90° triangles

The ratio of sides of a 30°×60°×90° triangle is 1 : √3 : 2
The legs of a 45x45 triangle are equal

The above mentioned properties give us:

h = 16/2 = 8 m
b = 8√3 ≈ 13.85 m
a = h = 8 m

Now find the area:

A = 1/2( 13 + 8 + 13.85 + 13)*8 = 191.4 m²

Correct choice is B

8 0

2 years ago

The length of each side of a square is 6 feet more than the length of a side of a regular Octagon. The perimeter of the square i

goldfiish [28.3K]

9514 1404 393

Answer:

square: 12 ft sides
octagon: 6 ft sides

Step-by-step explanation:

This problem can be worked in your head.

If the perimeters of the square and regular octagon are the same, the side length of the 4-sided square must be the same as the length of 2 sides of the 8-sided octagon. Since the side of the square is 6 ft more than the side of the octagon, each side of the octagon must be 6 ft, and each side of the square must be 12 ft.

We can let s represent the side length of the octagon. Then we have ...

8s = perimeter of octagon

4(s +6) = perimeter of square

These are equal, so ...

4(s +6) = 8s

s +6 = 2s . . . . . . divide by 4

6 = s . . . . . . . . . . subtract s

The octagon has 6-ft sides; the square has 12-ft sides.

8 0

3 years ago

You share a coin collection with a friend. You possess 44 of the coins and

vfiekz [6]

Answer:

Step-by-step explanation:

6 0

3 years ago

Help! C + -328 = 477

krek1111 [17]

The answer for c would be 805

8 0

2 years ago

Read 2 more answers