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sergejj [24]
4 years ago
12

What is the area of the shape?

Mathematics
2 answers:
earnstyle [38]4 years ago
6 0

Answer:

30

Step-by-step explanation:

7 * 3 = 21

3 * 3 = 9 which covers for both triangles

each triangle is half of a square. so each triangle is 4.5 sq. units

add 21 with 9

21 + 9 = 30

labwork [276]4 years ago
6 0

Answer:

42 square units.

Step-by-step explanation:

First, find the area of the rectangle, which is base*height or 7*3=21.

Next, find the area of the two triangles, each has an area of 1/2*b*h, since there are two of them, their collective area is b*h, or 7*3=21.

21+21=42 square units.

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Jenna has a bag that contains 7 red marbles and 25 blue marbles. She selects a marble at random, and then, without replacing the
Mashcka [7]
Jenna has a bag that contains the following
 => 7 red marbles
=> 25 blue marbles.
She selects a marble at random, and then, without replacing the first one, selects <span>another marble at random.
=> 7 + 25 = 32 marbles are there in all.
For blue marble 
=> 1/32 is the probability
For red 
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3 0
3 years ago
Read 2 more answers
Can you solve 21-27? Step by step
Scorpion4ik [409]

Answer:

6

21-27=6

basic math problem

3 0
3 years ago
Would someone please help me with this
Ipatiy [6.2K]

Answer:

12,000 m³

Step-by-step explanation:

  • Area of it's base = 900 m²
  • Height of the pyramid = 40 m

The volume of a pyramid = 1/3 × area of base × height

= 1/3 × 900 × 40

= 300 × 40

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4 0
3 years ago
Find area of blue shaded region
RUDIKE [14]

Answer:

\approx \: 7.33 \:  {cm}^{2}

Step-by-step explanation:

Area of the blue shaded region

=  \frac{ \theta}{360 \degree}  \times \pi r_1^2  - \frac{ \theta}{360 \degree}  \times \pi r_2^2  \\  \\  =   \frac{ \pi\theta}{360 \degree} ( r_1^2 - r_2^2) \\  \\ ( r_1 = 4 \: cm, \:  \:  r_2 = 3\: cm, \:  \:  \theta = 120 \degree) \\  \\ =   \frac{ 3.14 \times 120 \degree}{360 \degree} ( 4^2 - 3^2) \\  \\  =   \frac{ 3.14 }{3}  \times 7 \\  \\  =  \frac{21.98}{3}  \\  \\  = 7.32666667 \\  \\  \approx \: 7.33 \:  {cm}^{2}

8 0
3 years ago
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diamong [38]

Step-by-step explanation:

  • 12x-4y=-8
  • y=3x+2
  • 12x-4(3x+2)=-8

12x-12x-8=-8

0=0

I think,no solution

3 0
3 years ago
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