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2 years ago

Please help me with this answer!

Mathematics

2 answers:

Delvig [45]2 years ago

7 0

Answer:

y=7/4x

Step-by-step explanation:

marta [7]2 years ago

3 0

Y= 7/4x is your answer don’t forget rise over run

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Look at the diagram. Which of the following is another name ∠2?

____ [38]

The other name for angle 2 is ∠DBC

The correct option is (D)

<h3>What is Angle?</h3>

A figure which is formed by two rays or lines that shares a common endpoint is called an angle.

We know that while naming the angle we have to consider the point where the angle is made should be at center.

Hence, the angle 2 can also be written as ∠DCB.

Learn more about angle here:

brainly.com/question/13954458

#SPJ1

8 0

1 year ago

Find the distance between the complex numbers. z1 = 9 - 9i z2 = 10 - 9i

steposvetlana [31]

Answer:

The distance between the two given complex numbers = 9

Step-by-step explanation:

Explanation:-

Step(i):-

Given Z₁ = 9 - 9 i and Z₂ = 10 -9 i

Let A and B represent complex numbers Z₁ and Z₂ respectively on the argand plane

⇒ A = Z₁ = x₁ +i y₁ = 9 - 9 i and

B = Z₂ = x₂+ i y₂ = 10 -9 i

Let (x₁ , y₁) = ( 9, -9)

(x₂, y₂) = (10, -9)

Step(ii):-

The distance between the two points are

A B = $\sqrt{(x_{2} - x_{1})^{2}+(y_{2} - y_{1})^{2} }$

A B = $\sqrt{(10 - 1)^{2}+(-9 - (-9))^{2} }$

AB = $\sqrt{(9)^{2} +(-9+9)^{2} }$

AB = √81 = 9

Conclusion:-

The distance between the two given complex numbers = 9

3 0

2 years ago

4.20. According to a report released by the National Center for Health Statistics, 51% of U.S. households has only cell phones (

Sergeu [11.5K]

Answer:

The probability that the household has only cell phones and has high-speed Internet is 0.408

Step-by-step explanation:

Let A be the event that represents U.S. households has only cell phones

Let B be the event that represents U.S. households have high-speed Internet.

We are given that 51% of U.S. households has only cell phones

P(A)=0.51

We are given that 70% of the U.S. households have high-speed Internet.

P(B)=0.7

We are given that U.S. households having only cell phones, 80% have high-speed Internet. A U.S household is randomly selected.

P(B|A)=0.8

$\frac{P(A\capB)}{P(A)}=0.8\\P(A\capB)=0.8 \times P(A)\\P(A\capB)=0.8 \times 0.51\\P(A\capB)=0.408$

Hence the probability that the household has only cell phones and has high-speed Internet is 0.408

7 0

2 years ago

If the farmer has 250 feet of fencing to create a rectangular pen, define a function f that expresses the area of the field (mea

hoa [83]

Answer:

Maximum area possible

f(max) = 3906,25 ft²

Dimensions:

a = 62,5 ft

w = 62,5 ft

Step-by-step explanation:

Perimeter of the rectangular fencing P = 250 feet

And sides of the rectangle a and w (width of rectangle)

Then

A = a*w

2a + 2w = 250 ⇒ a = (250 -2w)/ 2 ⇒ a = 125 - w

f(w) = (125 - w ) *w f(w) = 125w - w²

Taking derivatives both sides of the equation

f´(w) = 125 - 2w f´(w) = 0 125 - 2w = 0

w = 125/2

w = 62,5 ft ⇒ a = 125 - 62,5

a = 62,5 ft

f(max) = ( 62,5)²

f(max) = 3906,25 ft²

8 0

3 years ago

What is the number of possible combinations of 14 objects taken 3 at a time?

maria [59]

Answer:

364.

Step-by-step explanation:

14C3 = 14! / 11! 3! which simplifies to:

14*13*12 /3*2*1

= 14*13* 2

= 364.

6 0

3 years ago