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2 years ago

Find the area. The figures are not drawn to scale.

Mathematics

1 answer:

ludmilkaskok [199]2 years ago

4 0

Answer and step-by-step explanation:

If it is a rectangle, the formula is:

L * W

Fill in the values:

4*6.9

Then solve.

27.6

So, if it is a rectangle, the answer is (C), 27.6 Inches squared.

If it is a triangle, the the formula is:

(B*H)/2

Fill in the values:

4*6.9/2

Simplify:

27.6/2

Then solve.

13.8

So, if it is a triangle, the answer is (A), 13.8 Inches squared

Hope this helps!

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Janie ordered boxed lunches for a student advisory committee meeting. Each lunch costs $4. The total cost of the lunches is $47,

Elodia [21]

Answer:

10 lunches

Step-by-step explanation:

$47-$7=$40

40/4=10

6 0

2 years ago

Read 2 more answers

I need help. So it says to find the shaded area, and I'm not really good a things like this

krek1111 [17]

Answer:

86 cm²

Step-by-step explanation:

1) Calculate the area of the square

$A=lw\\A=20*20\\A=400$

Therefore, the area of the square is 400 cm².

2) Calculate the area of the circle

$A=\pi r^2\\$

$\pi$ we can substitute with 3.14. To find the radius, we divide the diameter of the circle by 2. 20 cm is the diameter of the circle, so therefore, its radius is 10 cm.

$A=3.14*10^2\\A=3.14*100\\A=314$

Therefore, the area of the circle is 314 cm².

3) Subtract the area of the circle from the area of the square

$A=400-314\\A=86$

Therefore, the area of the shaded region is 86 cm².

I hope this helps!

3 0

3 years ago

Read 2 more answers

Please help NEED NOW thank youuu

dexar [7]

y= -2x + 4 is the answer

6 0

2 years ago

Read 2 more answers

Need help please! Will give it to the brainliest. Which expression models the bacterium's volume? Picture is below.

Tomtit [17]

The expression C. $\pi (1)^{2} (0.5)$ cubic $\mu \mathrm{m}$ represents the bacterium's volume.

Step-by-step explanation:

Step 1:

The E. Coli bacterium is in the shape of a cylinder.

The volume of a cylinder is given by multiplying π with the square of the radius (r²) and the height of the cylinder.

The volume of a cylinder, $V=\pi r^{2} h.$

In the given diagram, E. Coli has a radius of 1 $\mu \mathrm{m}$ and a height of 0.5 $\mu \mathrm{m}$ .

Step 2:

By substituting the values in the equation, we get

The volume of the E. Coli bacterium $= \pi (1)^{2} (0.5)$ cubic $\mu \mathrm{m}$ .

This is option C.

7 0

3 years ago

Find the perimeter of the quadrilateral.

levacccp [35]

Question:

Find the perimeter of the quadrilateral. if x = 2 the perimeter is ___ inched.

The complete figure of this question is attached below

Answer:

<h3>The perimeter of the quadrilateral is 129 inches</h3>

Solution:

The complete figure of this question is attached below

Given that, a quadrilateral with,

Side lengths are:

$4x^2 + 8x\ inches \\\\3x^2-5x+20\ inches \\\\7x + 30\ inches \\\\31\ inches$

The values of the side lengths when x = 2 are

$(4x^2+8x)=(4\times 2^2+8\times 2)=(4\times 4+16)=16+16=32\ inch\\\\(3x^2-5x+20)=(3\times 2^2-5\times 2+20)=(3\times 4-10+20)=12+10=22\ inch\\\\(7x+30)=(7\times 2+30)=14+30=44\ inch$

Perimeter of a quadrilateral = Sum of its sides

Perimeter of given quadrilateral = 32 + 22 + 44 + 31 = 129 inches

Thus perimeter of the quadrilateral is 129 inches

5 0

2 years ago