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3 years ago

Question 1 (1 point)

Mathematics

1 answer:

alisha [4.7K]3 years ago

5 0

Answer:

See below

Step-by-step explanation:

1) x=2-1

x=1

2) (x+1)(x+1)=2(x+1)

3) 10x-20 -11 = 4+3x

10x-3x=20+11+4

7x=35

x=5

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2 wholes equals to what

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Equal too 4 wholes that is my answer

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4 years ago

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You wish to test whether the number of fouls called in regular season games is different than during the NCAA tournament. The me

kolezko [41]

Answer:

the lower value of the interval = 35.26

Step-by-step explanation:

The mean number is u = 40.1

n = 16

the mean number called x is 38.1

the standard deviation = 5.8

given a 95% Confidence Interval

The lower value of the confidence interval is?

solution

There is a inﬁnite population and the standard deviation of the population is known,

the below formula is used for determining an estimate of the conﬁdence limits of the population mean, i.e.

x ± ( zₐσ)/ √n

For a 95% conﬁdence level, the value of za is taken from the confidence interval table = 1.96.

the conﬁdence limits of the population=

x ± ( zₐσ)/ √n

38.1 ± (1.96*5.8)/ √16

38.1 ± 11.368/4

38.1 ± 2.842

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Thus, the 95% conﬁdence limits are 40.942 or 35.258

this prediction is made with conﬁdence that it will be correct nine five times out of 100.

finally, the lower value of the interval = 35.26

7 0

4 years ago

Sarah has 12 bags of apples. Mikaela has 17 bags of apples. Each bag has the same amount of apples inside. Wrie an expression fo

hodyreva [135]

The expression for the total amount of apples is 29x

Solution:

Given that,

Sarah has 12 bags of apples

Mikaela has 17 bags of apples

Each bag has the same amount of apples inside

Let "x" be the number of apples in each bag

Then,

Sarah has 12x apples

Mikaela has 17x apples

Wrie an expression for the total amount of apples

Total amount of apples = 12x + 17x

Then simplify it using the distributive property to create an equivalent expression

By distributive property,

a(b + c) = ab + bc

Therefore,

$12x+17x = x(12+17)\\\\12x+17x = 29x$

Thus expression for the total amount of apples is 29x

8 0

3 years ago

Help plz...................................

N76 [4]

Answer:

Step-by-step explanation:

These are similar triangles, so the ratio of their sides is the same for each side.

AB = 8 and BD = 10

So, the ratio is 8:10 or 4:5

Because the triangles are similar....

The ratio of AC:CE is also 4:5

12:15 = 4:5

So, 12 is the answer!

8 0

3 years ago

I really need help with this-

kykrilka [37]

Answer:

Step-by-step explanation:

|2 - 4a| - 2(b - 7)

|2 - 4(3)| - 2(-5 - 7)

|2 - 12| + 10 + 14

|-10| + 10 + 14

10 + 10 + 14

20 + 14

Best of Luck!

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4 years ago

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