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Sloan [31]
4 years ago
12

Evaluate the expression: 15(6 – 4)

Mathematics
1 answer:
Tpy6a [65]4 years ago
7 0
6 - 4 = 2
15 x 2 = 30
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Help me please I don't get it​
gavmur [86]

9514 1404 393

Answer:

  C = 56.52 in

  A = 256.34 in²

Step-by-step explanation:

The figure is trying to show you that d=18 in, so r=9 in. The formulas for C and A are given, so you only need to put the numbers in the formula and do the arithmetic. Apparently, you're supposed to use 3.14 for π.

  C = πd = (3.14)(18 in) = 56.52 in

  A = πr² = (3.14)(9 in)² = (3.14)(81) in² = 254.34 in²

3 0
3 years ago
is anyone willing To help Me on number 8 9 and 10 please I really need you To help Me with The last 3 problems
Lilit [14]

Answer:

C, C and A

Step-by-step explanation:

using the formulae relating to the circle

• Area (A) = πr² ( r is the radius )

• Circumference (C) = 2πr ( r is the radius )

(8)

Area of the interior with r = 4

A = π × 4² = 16π ≈ 50.27 ft² → C

(9)

Area of exterior with r = 7

A = π × 7² = 49π ≈ 154 ft² → C

(1)

Circumference of exterior circle with r = 7

C = 2 × π × 7 = 14π ≈ 44 ft → A





4 0
3 years ago
Josh started washing at 4:07 PM and finished at 5:31 PM. How long did it take him? Give your answer in hours and minutes​?
denis23 [38]
It took him 1 hour & 24 minutes
8 0
3 years ago
Which transformation will map an isosceles trapezoid onto itself? rotation by 180° about its center, reflection across a diagona
alukav5142 [94]

Answer:

The correct option is 4.

Step-by-step explanation:

The non parallel sides of an isosceles trapezoid are congruent.

The image of an isosceles trapezoid is same as the preimage of isosceles trapezoid if

1. Reflection across a line joining the midpoints of parallel sides.

2. Rotation by 360° about its center.

3. Rotation by 360° about origin.

If we rotate the trapezoid by 180° about its center, then the parallel sides will interchanged.

If we reflect the trapezoid across a diagonal, then the resultant figure will be a parallelogram.

If we reflect across a line joining the midpoints of the nonparallel sides, then the parallel sides will interchanged.

After rotation by 360° about the center, we always get an onto figure.

Therefore option 4 is correct.

6 0
3 years ago
Read 2 more answers
Helpppp mee please. I finished the others by myself!!!
Lera25 [3.4K]
             48 + 2x = 180 
          - 48             -  48
       ----------------------------
            2x = 132
          -----------------
                  2
 
x = 66
 
8 0
4 years ago
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