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ki77a [65]
2 years ago
15

(Press this if you don't see it) I need help on number six and seven.

Mathematics
1 answer:
KIM [24]2 years ago
5 0
For number six, the sail is 3 ft tall.

Base x Height x (1/2) = a
2.5 x 3 x (1/2) = 3.75
7.2 x (1/2) = 3.75
<span>3.5 = 3.5 </span>
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A 5.1-ft-tall person walks away from a 12-ft lamppost at a constant rate of 3.9 ft/sec. What is the rate that the tip of the per
nekit [7.7K]

Answer:

6.78ft/sec

Step-by-step explanation:

From the question, dx/dt= 3.9 ft/sec

We are looking for Dy/dt

From geometry,vof this case the relationship between x and y is needed here, there is two similar triangle that exhibited by the man and the lamb

12/y= 5.1/(y-x)

Then ,cross multiply, we have

12(y-x)=5.1y

12y-12x=5.1y

12y-5.1y=12x

6.9y=12x

y=( 12/6.9)x

Differentiating implicitly the bother sides with respect to t, we have

Dy/dt= ( 12/6.9)dx/dt

But dx/dt= 3.9 ft/sec

Then Dy/dt= ( 12/6.9)× 3.9

Dy/dt=6.78ft/sec

Hence, the rate that the tip of the person's shadow moves away from the lamppost when the person is 9 ft away from the lampost is 6.78ft/sec

CHECK THE ATTACHMENT FOR THE FIQURE

6 0
2 years ago
Learning Task II. Illustrate the following: Illustration Given 1. Line Segment MN 2. Ray XY 3. Ray YX 4. Angle ABC 5. LK​
Mashutka [201]

The illustration of the given mathematical elements is as in the attached images.

<h3>Illustration of mathematical elements</h3>

For line segments;

  • The beginning and end of the line are specified by the assigned alphabets.

However, for rays;

  • The ray is illustrated to originate from a point and span on from there till infinity.

For angles;

  • The alphabet in the middle of the set of 3 alphabets used to identify the angle represents the center point of where the angle is located.

Read more on illustration of mathematical elements;

brainly.com/question/18430725

6 0
2 years ago
- 4(x + 5) = 16 what does x equal?
qwelly [4]

Answer:x= 9

Step-by-step explanation:

-4(x+5) = 16

-4*x= -4x -4*5= -20

16 - -20= 36

-4x/-4= x 36/-4=9

5 0
2 years ago
10 points please answer correctly (due soon)
luda_lava [24]

The exponential equation of the model is A(t) = 2583 * 0.88^t and the multiplier means that the number of new cases in a week is 88% of the previous week

<h3>The function that models the data</h3>

The given parameters are:

New, A(t) = 2000

Rate, r = 12%

The function is represented as:

A(t) = A * (1 - r)^t

So, we have:

2000 = A * (1 - 12%)^t

This gives

2000 = A * (0.88)^t

2 weeks ago implies that;

t = 2

So, we have:

2000 = A * 0.88^2

Evaluate

2000 = A * 0.7744

Divide by 0.7744

A = 2583

Substitute A = 2583 in A(t) = A * 0.88^t

A(t) = 2583 * 0.88^t

Hence, the exponential equation of the model is A(t) = 2583 * 0.88^t

<h3>The interpretation of the multiplier</h3>

In this case, the multiplier is 88% or 0.88

This means that the number of new cases in a week is 88% of the previous week

Read more about exponential equation at

brainly.com/question/2456547

#SPJ1

8 0
2 years ago
What dose 5\8 = too?
Anna11 [10]

Answer:

5/8

Step-by-step explanation:

4 0
3 years ago
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