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avanturin [10]
3 years ago
12

To find a baseball pitcher's earned run average (ERA), you can use the formula Ei=9r, where E represents ERA, i represents numbe

r of innings pitched, and r represents number of earned runs allowed. Solve the equation for E ...?
Mathematics
2 answers:
Lady bird [3.3K]3 years ago
5 0
You have the formula
  E i = 9 r
You can divide both sides by i and get
  E = (9 r) / i
The formula is solved for e.
kicyunya [14]3 years ago
3 0

Answer:

E=\frac{9r}{i}

Step-by-step explanation:

We have been given an equation Ei=9r, where E represents ERA, i represents number of innings pitched, and r represents number of earned runs allowed.

To solve the given equation for E, we need to separate E on one side on equation.

To separate E on one side on equation, we will divide both sides of equation by i.

\frac{Ei}{i}=\frac{9r}{i}

E=\frac{9r}{i}, where i\neq 0

Therefore, our required equation would be E=\frac{9r}{i}.

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Convert 23° 12' to decimal form
Lina20 [59]

Answer:

15813.64 rounded to nearest hundredth

3 0
3 years ago
What is the surface area of the square pyramid represented by the net? Enter your answer in the box. m²
Alborosie

Answer:

1.75 meters² or 175 centimeters²

Step-by-step explanation:

Step 1: Find Area of the Base.

  • Base is a square with dimensions of 7cm by 7cm
  • 7*7
  • 49 cm²

Step 2: Find the Area of the Triangles.

  • Each triangle has a base of 7cm and a height of 9cm.
  • 7 x 9 = 63, and 63/2 = 31.5
  • 31.5 x 4 = 126 cm²

Step 3: Add the areas together.

  • 49+126
  • 175 cm²

Thus, the surface area is 1.75 m^2 or 175 cm^2.

7 0
2 years ago
The nutrition label for Oriental Spice Sauce states that one package of sauce has 1100 milligrams of sodium. To determine if the
lora16 [44]

Answer:

We conclude that the sodium content is same as what the nutrition label states.

Step-by-step explanation:

We are given that the nutrition label for Oriental Spice Sauce states that one package of sauce has 1100 milligrams of sodium.

The FDA randomly selects 40 packages of Oriental Spice Sauce and determines the sodium content. The sample has an average of 1088.64 milligrams of sodium per package with a sample standard deviation of 234.12 milligrams.

<u><em /></u>

<u><em>Let </em></u>\mu<u><em> = average sodium content.</em></u>

So, Null Hypothesis, H_0 : \mu = 1100 milligrams      {means that the sodium content is same as what the nutrition label states}

Alternate Hypothesis, H_A : \mu \neq 1100 milligrams      {means that the sodium content is different from what the nutrition label states}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about population standard deviation;

                    T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n}}}  ~ t_n_-_1

where, \bar X = sample average sodium content = 1088.64 milligrams

            s = sample standard deviation = 234.12 milligrams

            n = sample of packages of Oriental Spice Sauce = 40

So, <u><em>test statistics</em></u>  =  \frac{1088.64-1100}{\frac{234.12}{\sqrt{40}}}  ~ t_3_9

                              =  -0.307

The value of z test statistics is -0.307.

<em>Since, in the question we are not given the level of significance so we assume it to be 5%. </em><em>Now, at 0.05 significance level the t table gives critical values of -2.0225 and 2.0225 at 39 degree of freedom for two-tailed test.</em><em> </em>

<em>Since our test statistics lies within the range of critical values of t, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which </em><em><u>we fail to reject our null hypothesis</u></em><em>.</em>

Therefore, we conclude that the sodium content is same as what the nutrition label states.

3 0
3 years ago
17,985 + -33,789. i really need this question answered
nikdorinn [45]

Answer:

-15804

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Greenland, the largest island in the world, is 21 times larger than Iceland. The combined area of Greenland and Iceland is 880,0
notsponge [240]
41,904.7619047619mi2
3 0
3 years ago
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