All categories

3 years ago

Find the area of the following ellipse Use = 3.14 and round to nearest tenth. a = 7 in.; b = 9 in.

Mathematics

1 answer:

TEA [102]3 years ago

8 0

A of ellipse = pi•a•b= 3.14•7•9= 197.82
Round to the nearest tenth
197.82~ 197.2 in^2

You might be interested in

Find -48a divided by 8 when a=1 write your answer in simplest form

lukranit [14]

-48a÷ 8 can be written as,

$\frac{-48a}{8}$

Put a=1 in the above exprression and solve.

$\frac{-48\times1}{8}=-6$

Therefore, the solution is -6.

8 0

1 year ago

I NEED HELP ON THIS QUESTION ASAP

Fittoniya [83]

Answer:

(2.5, -.25)

Step-by-step explanation:

I'm not positive that I know exactly what they want on this one....but since you specifically asked me to look at your other question, I tried.

See pic.

4 0

3 years ago

Two antibiotics are available as treatment for a common ear infection in children. • Antibiotic A is known to effectively cure t

Scrat [10]

Step-by-step explanation:

the probability of A working is 60% or 0.6, so the probability it does not work is 40% or 0.4.

the probability of B working is 90% or 0.9, so the probability it does not work is 10% or 0.1.

plan 1

it is the probabilty that either A works, or (if it is not working) B works.

0.6 + 0.4×0.9 = 0.6 + 0.36 = 0.96

plan 2

either B works, or (if it is not working) A works

0.9 + 0.1×0.6 = 0.9 + 0.06 = 0.96

both plans have the same success probability.

5 0

2 years ago

You are setting up an 802.11a wireless network in a small office environment that includes three wireless access points. The wir

Gnom [1K]

Answer:

Start each wireless access point at a separate time.

5 0

2 years ago

This is the graph of y = sin(x). Does anyone know the second part?

Alborosie

Answer:

The resulting graph is $y = 5\cdot \sin x$ .

Step-by-step explanation:

The resulting function is of the form:

$y = A\cdot \sin x + k$

Where:

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

$A$ - Amplitude, dimensionless.

$k$ - Midpoint value, dimensionless.

The sine function is bounded, between -1 and 1, and must be multiplied by a stretch factor. That is: $A > 0$ . According to the graph, the function is bounded between 5 ( $y_{max}$ ) and -5 ( $y_{min}$ ), and the midpoint value ( $k$ ) is 0. The amplitude is determined by the following calculation:

$A = \frac{y_{max}-y_{min}}{2}$

If $y_{min} = -5$ and $y_{max} = 5$ , then:

$A = 5$

The resulting graph is $y = 5\cdot \sin x$ .

6 0

3 years ago