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kirza4 [7]
3 years ago
11

PLZ HURRY IT'S URGENT!

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
7 0

Answer: 40

Step-by-step explanation:

Sonbull [250]3 years ago
7 0

Answer:

The answer is 40.

Step-by-step explanation:

a = -2

b = 5

a times b = -10

So then the question is: -4 x (-10)

Negative four times negative ten is equal to 40.

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Find the area of an equilateral triangle (regular 3-gon) with the given measurement.
notka56 [123]
A= (1/2) b*h
h=3 sqrt3
A= (1/2)*6*3sqrt3
A= 9sqrt3 square inches
3 0
3 years ago
Read 2 more answers
A nonprofit organization sent mailing labels along with a request for donations to a random sample of 75,000 potential donors on
Law Incorporation [45]

Answer:

Check the explanation

Step-by-step explanation:

The null and alternative hypotheses in symbols and words are as follows:

: p ≤ 0.06 (There has been no change in the contribution rate due to addition of the mailing labels)

: p > 0.06 (The addition of the mailing labels has increased the contribution rate)

Test Statistics

The following information is provided: The sample size is N = 75000, the number of favorable cases is X = 5625, and the sample

The z-statistic is computed as follows:

- P_0 (1 -

Test statistic z = 17.297

P-value

P-value corresponding to z = 17.297 for a two tailed test is obtained using standard normal table.

p-value = 0.0000

90% Confidence Interval Calculation

Kindly check the attached image below.

Conclusion

Since p-value = 0.0000 < α = 0.05, we reject null hypothesis .

At 0.05 significance level, there is enough evidence to conclude that the addition of the mailing labels has increased the contribution rate.

Since the 90% confidence interval (0.073, 0.077) does not contain the hypothesized value 0.06, the result is significant and we reject null hypothesis.

In other words, at 0.10 significance level, there is enough evidence to conclude that the addition of the mailing labels has increased the contribution rate.

4 0
3 years ago
Write an expression that represents "the sum of x and itself". Type your answer in the space provided. Use only lower case lette
Nikolay [14]

Either of the following is such a sum:

  • x+x
  • 2x

The former is more recognizable as matching the given English expression, but the latter is the same thing, in simplified form.

5 0
3 years ago
Which expressions are equivalent to 4(4a+5)?
goldfiish [28.3K]
B. 4(4a+5)
4 would multiply all what’s in the bracket
16a +20
3 0
3 years ago
In a Crystal Light container, the ratio of strawberry flavored packages to orange flavored packages are 8 to 4. Based on this ra
Tasya [4]

Answer:

32

Step-by-step explanation:

With the ratio 8:4 we can assign variables.

8x+4x=96

12x=96

x=8

Subsitute to ratio: 8x:4x

64:32

32 orange packages

Hope this helps

4 0
2 years ago
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