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Pachacha [2.7K]
2 years ago
7

Help me to solve problem pless​

Mathematics
2 answers:
sergejj [24]2 years ago
8 0

Answer:

a:

5 x -3 +6

= 5 x 6 + -3

= 30 + -3

= 27

krok68 [10]2 years ago
7 0

Answer:

a) 15 c) -10 e) -18

Step-by-step explanation:

a)

= 5 * (-3+6) = 5 * 3 = 15

c)

= -10 * (7 - 6) = -10 * 1 = -10

e)

= (-15 + 12) * 6 = -3*6 = -18

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If ab = a, then b = <br><br> A) 0 <br> B) 1 <br> C) a <br> D) even
Zanzabum

Answer:

1

Step-by-step explanation:

because a number multiplied with 1 is equal to itself

8 0
3 years ago
An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr
Advocard [28]

Answer:

Value of the test statistic, z_{test}  = - 1.17

Step-by-step explanation:

Null hypothesis, H_{0}: \mu = 53.9

Alternative hypothesis, H_{a} : \mu \neq 53.9

Sample mean, \bar{X} = 53.7

Sample size, n = 110

Standard deviation, \sigma = 1.8

Significance level, \alpha = 0.02

The value of the test statistics is given by the formula:

z_{test}  = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test}  = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test}  = - 1.17

7 0
2 years ago
Mrs. Rodriguez wants to pay her restaurant bill which is $24.00. A 6% tax is added by the waitress. If Mrs. Rodriguez wants to l
Gelneren [198K]
She would have to pay $30.53
24x.6=1.44
24+1.44=25.44
25.44/.2=5.088
25.44+5.09 (you had to round it up because it's money)
Which equals 30.53
I hoped this helped :)
6 0
2 years ago
Read 2 more answers
Isaac keeps track of the amount of money in his savings certificate each month. He has accumulated the following data:
Dafna1 [17]

Answer:

d. The common ratio is 1.1

Step-by-step explanation:

To see if the data has a common ratio or common difference, we have to see if the division between them is equal(common ratio), or if the difference between them is equal(common difference).

In this case, since 60.5 - 55 \neq 55 - 50, it has a common ratio.

To find it, we divide consecutive terms. For example:

\frac{55}{50} = 1.1

So the correct answer is:

d. The common ratio is 1.1

3 0
2 years ago
Please Help, Thanks!!
diamong [38]

Answer:

505.8

Step-by-step explanation:

4215x0.12=505.8

4 0
2 years ago
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