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masha68 [24]
2 years ago
10

Expand the following: a)2(x + 3)

Mathematics
1 answer:
deff fn [24]2 years ago
6 0

Answer:

<h2><u>2x+6</u></h2>

Step-by-step explanation:

2(x+3)

=(2)(x+3)

=(2)(x)+(2)(3)

=2x+6

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he U.S. Bureau of Labor Statistics reports that the average annual expenditure on food and drink for all families is $5700. Assu
Papessa [141]

Answer:

87.08% percentage of families spend more than $4000 annually on food and drink

Step-by-step explanation:

Given -

average annual expenditure on food and drink for all families is $5700

Mean  (\nu) = 5700

standard deviation (\sigma ) = 1500

Let X be the no of families spend annually on food and drink

percentage of families spend more than $4000 annually on food and drink =

P(X > 4000)  = P(\frac{X - \nu }{\sigma }> \frac{ 4000 - 5700}{1500})

                      =  P(Z > - 1.13)     Using  (Z = \frac{X - \nu }{\sigma })

                      =  1 - P(Z

                      = 1 - .1292

                      = .8708

                       = 87.08%

7 0
3 years ago
Tia measured a greeting card and found that it was 1 decimeter long. How many centimeters are in 1 decimeter?
Advocard [28]

Answer:

10 cm

Step-by-step explanation:

1 decimeter is equal to 10⁻¹ meters.

1 meter is equal to 10² centimeters. We can use a conversion fraction to find the centimeters corresponding to 10⁻¹ meters.

10⁻¹ m × (10²cm/1 m) = 10 cm

1 dm = 10⁻¹ m

10⁻¹ m = 10 cm

Due to the transitive property, 1 decimeter is equal to 10 centimeters.

4 0
3 years ago
The error is in the middle: 2(-12) = -24 not 24.
sergiy2304 [10]

Answer:

There is no question so I can not respond with a answer.

Step-by-step explanation:

4 0
3 years ago
2(2t-3)=6(t+2) solving equations with variable on both sides ​
ludmilkaskok [199]

Answer:

t=-9

Step-by-step explanation:

2(2t-3)=6(t+2)

4t-6=6t+12

4t-6t=12+6

-2t=18

t=-9

5 0
3 years ago
Read 2 more answers
The salary of teachers in a particular school district is normally distributed with a mean of $50,000 and a standard deviation o
Westkost [7]

Answer:

54,900

hope this helps!!

3 0
3 years ago
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