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k0ka [10]
3 years ago
5

Which graph best represents the equation shown below? -3x + 4y = 9

Mathematics
1 answer:
Aleks [24]3 years ago
8 0
The answer should be B
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Question 31 (5 points) Find the area of the shaded portion if we know the outer circle has a diameter of 4 m and the inner circl
Vadim26 [7]

The shaded portion area A corresponds to the area Ao of the outer circle minus the area Ai of the inner circle:

A = Ao - Ai

Also, the area of each circle of radius r is given by:

π r²

where the radius r is half the diameter d.

So, using r = d/2 in the above formula, we obtain:

π r² = π (d/2)² = (π/4) d²

Now, replacing each area with the corresponding diameter, we find:

A = Ao - Ai

= (π/4) 4² - (π/4) 1.5²

= (π/4) (4² - 1.5²)

= (π/4) (16 - 2.25)

= (π/4) (13.75)

≅ 10.799

Rounding the result to one decimal place, we find the answer:

10.8 m²

5 0
1 year ago
Which is the solution to the inequality --4x+6 3 2x?
lapo4ka [179]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the area of the following shape. You must show all work to receive credit.
SVEN [57.7K]

Answer:

Step-by-step explanation:

A = [(3x2)/2] + [(4x2)/2] - 1/2

A = 3 + 4 - 1/2

A = 6.5

3 0
3 years ago
What is the measure of minor arc BD?
Vaselesa [24]

Answer:

minor\ arc\ BD=100^o

Step-by-step explanation:

The picture of the question in the attached figure

we know that

A <u><em>circumscribed angle</em></u> is the angle made by two intersecting tangent lines to a circle

so

In this problem

BC and CD are tangents to the circle

BC=CD ----> by the Two Tangent Theorem

That means

Triangle ABC and Triangle ADC are congruent

so

m\angle BAC=m\angle DAC

Find the measure of angle BAC

In the right triangle ABC

m\angle BAC+m\angle BCA=90^o

substitute given value

m\angle BAC+40^o=90^o

m\angle BAC=90^o-40^o=50^o

Find the measure of angle BAD

m\angle BAD=2m\angle BAC

m\angle BAD=2(50^o)=100^o

Find the measure of minor arc BD

we know that

minor\ arc\ BD=m\angle BAD -----> by central angle

therefore

minor\ arc\ BD=100^o

8 0
3 years ago
Read 2 more answers
Please help me with the correct answer
Shkiper50 [21]

Answer:

10

Step-by-step explanation:

c² = a² + b²

= 8² + 6²

= 64 + 36

= 100

c² = 100

c = 10

8 0
2 years ago
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