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Neporo4naja [7]
2 years ago
10

PLEASE HELPP!!’ i will mark you brainliest if you help

Mathematics
1 answer:
Anettt [7]2 years ago
6 0

Answer:

Step-by-step explanation:

Domain: - ∞ <x < ∞

Range: The range starts out at - ∞ and goes to 8

- ∞ < y ≤ 8

Vertex: (0,8) The vertex is a point. It's the highest point.

Axis of symmetry: x = 0   The axis of symmetry is the y axis.

zeros: (4,0) and (-4,0)

I have no idea what the last sentence is asking for.

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Need this urgently!! Please help me
Gemiola [76]
Flower bed A:
circumference= 2 x pi x r= 2x pi x10/2
=10pi feet
Area= pi x r^2=25pi square feet
Flower bed B:
circumference=12 pi feet
Area=36 pi square feet
5 0
3 years ago
How do you find (2+4i)^3 in rectangular form?
marshall27 [118]

(2+4i)^3=8+48i-96-64i=-88-16i

8 0
2 years ago
Read 2 more answers
The probability of rain on the last day of July is 95 % . If the probability remains constant for the first seven days of August
8090 [49]

The probability that it rains at most 2 days is 0.00005995233 and the variance is 0.516

<h3>The probability that it rains at most 2 days</h3>

The given parameters are:

  • Number of days, n = 7
  • Probability that it rains, p = 95%
  • Number of days it rains, x = 2 (at most)

The probability that it rains at most 2 days is represented as:

P(x ≤ 2) = P(0) + P(1) + P(2)

Each probability is calculated as:

P(x) = ^nC_x * p^x * (1 - p)^{n - x}

So, we have:

P(0) = ^7C_0 * (92\%)^0 * (1 - 92\%)^{7 - 0} = 0.00000002097

P(1) = ^7C_1 * (92\%)^1 * (1 - 92\%)^{7 - 1} = 0.00000168821

P(2) = ^7C_2 * (92\%)^2 * (1 - 92\%)^{7 - 2} = 0.00005824315

So, we have:

P(x ≤ 2) =0.00000002097 + 0.00000168821 + 0.00005824315

P(x ≤ 2) = 0.00005995233

Hence, the probability that it rains at most 2 days is 0.00005995233

<h3>The mean</h3>

This is calculated as:

Mean = np

So, we have:

Mean = 7 * 92%

Evaluate

Mean = 6.44

Hence, the mean is 6.44

<h3>The standard deviation</h3>

This is calculated as:

σ = √np(1 - p)

So, we have:

σ = √7 * 92%(1 - 92%)

Evaluate

σ = 0.718

Hence, the standard deviation is 0.718

<h3>The variance</h3>

We have:

σ = 0.718

Square both sides

σ² = 0.718²

Evaluate

σ² = 0.516

This represents the variance

Hence, the variance is 0.516

Read more about normal distribution at:

brainly.com/question/4079902

#SPJ1

7 0
1 year ago
What is (5 1/2 +2 3/4)-3 1/2​
user100 [1]

Answer:

answer is 119/4

Step-by-step explanation:

51/2+23/4-3/2=102+23-6/4=119/4

5 0
3 years ago
A rectangular painting is 24 inches wide and 20 inches tall without the frame. With the frame, it is 28 inches wide and 24 inche
evablogger [386]

The area of the frame not covered by the painting is 192 square inches

<em><u>Solution:</u></em>

Given that, A rectangular painting is 24 inches wide and 20 inches tall without the frame

The area of rectangle is given as:

Area = length \times width

<em><u>Find the area of painting without frame:</u></em>

Length = 20 inches

Width = 24 inches

Area\ Without\ Frame = 20 \times 24 = 480

Thus area of painting without frame is 480 square inches

With the frame, it is 28 inches wide and 24 inches tall

<em><u>Find the area of painting with frame:</u></em>

Length = 24 inches

Width = 28 inches

Area\ with\ frame = 24 \times 28 = 672

Thus area of painting with frame is 672 square inches

<em><u>What is the area of the frame not covered by the painting</u></em>

Area of the frame not covered by the painting = Area with farme - Area without frame

Area of the frame not covered by the painting = 672 - 480 = 192

Thus the area of the frame not covered by the painting is 192 square inches

4 0
3 years ago
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