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Inessa [10]
3 years ago
7

HOW many right angles, obtuse angles and acute angles are there in this picture

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

acute: 9

obtuse: 2

right: 2

Sorry if it wrong

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A market sells 7 oranges for $2.45. How much will 8 oranges cost?
nordsb [41]

Answer:

$2.80

Step-by-step explanation:

Divide 2.45 by 7 to get the cost of 1 orange which is $0.35.  Multiply that cost by 8 to get the cost of 8 oranges and your final answer which is $2.80.

3 0
3 years ago
Meth Barie's ice cream shop wants to decide whether to introduce a new ice cream flavor. They randomly selected 15 customers at
Marianna [84]

Answer:

Meth Barie's ice cream shop should not introduce the new ice cream flavor.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 4.01

Sample mean, \bar{x} = 4.4

Sample size, n = 15

Alpha, α = 0.1

Sample standard deviation, s = 1.6 minutes

First, we design the null and the alternate hypothesis

H_{0}: \mu \leq 4.01\\H_A: \mu > 4.01

We use one-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{4.4 - 4.0}{\frac{1.6}{\sqrt{15}} } = 0.968

Option B) 0.968

Rejection region:

Now, t_{critical} \text{ at 0.10 level of significance, 9 degree of freedom } = 1.345

So the rejection region would be a value of t-statistic greater than 1.345.

Option B) t > 1.345

Conclusion:

Since,                    

t_{stat} < t_{critical}

We fail to reject the null hypothesis and accept the null hypothesis. Meth Barie's ice cream shop should not introduce the new ice cream flavor.

8 0
4 years ago
A square garden has an area of 144 square feet. How many yard of fence will it take to enclose the garden?
jonny [76]

Answer:

16 yards

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which equation in point-slope form describes the line through points (4, –4) and (1, 2)?
IRINA_888 [86]

Step-by-step explanation:

<em>Given </em><em>points </em><em>(</em><em>4</em><em> </em><em>,</em><em> </em><em>-</em><em>4</em><em>)</em><em> </em><em> </em><em>and </em><em>(</em><em> </em><em>1</em><em>,</em><em> </em><em>2</em><em>)</em>

<em>First </em><em>calculating </em><em>slope </em><em>(</em><em>m) </em><em> </em>

<em>=</em><em>(</em><em> </em><em>y2</em><em> </em><em>-</em><em> </em><em>y1) </em><em>/</em><em>(</em><em> </em><em>x2 </em><em>-</em><em>x1) </em>

<em>=</em><em> </em><em>(</em><em> </em><em>2</em><em> </em><em>+</em><em> </em><em>4</em><em>)</em><em> </em><em>/</em><em> </em><em>(</em><em>1</em><em>-</em><em>4</em><em>)</em>

<em>=</em><em> </em><em>6</em><em>/</em><em> </em><em>-</em><em>3</em>

<em>=</em><em> </em><em>-</em><em>2</em>

<em>Now</em>

<em>The </em><em>equation </em><em>in </em><em>point </em><em>slope </em><em>form</em>

<em>y </em><em>-</em><em> </em><em>y1</em><em> </em><em>=</em><em> </em><em>m </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>x1) </em>

<em>y </em><em>+</em><em> </em><em>4</em><em> </em><em>=</em><em> </em><em>-</em><em>2</em><em> </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>4</em><em>)</em>

<em>y </em><em>+</em><em> </em><em>4</em><em> </em><em>=</em><em> </em><em>-</em><em>2</em><em>x</em><em> </em><em>+</em><em> </em><em>8</em>

<em>2x </em><em>+</em><em> </em><em>y </em><em>-</em><em> </em><em>8</em><em> </em><em>+</em><em> </em><em>4</em><em> </em><em>=</em><em> </em><em>0</em>

<em>2x </em><em>+</em><em> </em><em>y </em><em>-</em><em>4</em><em> </em><em>=</em><em> </em><em>0</em><em> </em><em>which </em><em>is </em><em>the </em><em>required </em><em>equation </em>

6 0
3 years ago
Which of the following statements is NOT equivalent to the statement, 'There exists either a
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Computer Scientist lol I need 20 characters
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