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sergey [27]
3 years ago
15

HURRRRRRYYYYYYY 1 QUESTION EXPERTS/ACE HELP QUICK!!!!!

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0
The first answer N(t) = 1.95^t
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What if the 360 cubic-inch paving stones are 4 inches thick and any whole number length and width are possible? How many differe
AleksAgata [21]
Umm im gonna guess on this one because im not good at math lol
, 3.58?
6 0
4 years ago
Read 2 more answers
1. Evaluate the expression if y = 5 and z = 0
natta225 [31]

Answer:

1. 0

2. -1

3. $120

4. $653.25

5. 4ab + 7a - 2b

Step-by-step explanation:

1. y = 5, z = 0

2z/y = ?

You'll need to substitute the values of y and z in the expression

2z/y

Becomes

2 * 0 / 5

= 0

So, 2z/y equals 0

......................................................................................................................

2. x = 0, y = -1 z = 7

xz - y²

Substituting the values of x, y and z in the above algebraic expression

xz - y²

Becomes

0*7 - (-1²)

0 - 1

-1

So, xz - y² equals -1

......................................................................................................................

3. The question falls under SIMPLE INTEREST

The formula is

I = (PRT)/100

Where I represents Interest

P = Principal (Amount Invested)

R = Rate of Interest

T = Time (in years)

From the question,

The interest is unknown ----------------- (To be calculated)

P equals $600

R = 2%

T = 10 years

Substitute these values in the formula above

I = (PRT)/100

Becomes

I = (600 * 2 * 10) / 100

I = 12000/100

I = 120

Result: The interest is $120

......................................................................................................................

4.

The formula is

I = (PRT)/100

Where I represents Interest

P = Principal (Amount Invested)

R = Rate of Interest

T = Time (in years)

From the question,

The interest is unknown ----------------- (To be calculated)

P equals $13000

R = 6.7%

T = 9 months

Remember that time has to be in years

So, 9 months must be converted to year(s)

If 12 months makes a years

Then 9 months would be 9/12 years

So, T = 9/12 years

T = 0.75 years

Substitute these values in the formula above

I = (PRT)/100

I = (13000 * 6.7 * 0.75) / 100

I = 65325/100

I = 653.25

Result: The interest is $653.25

5. Simplify 4ab - 3bc + 7a - 2b + 3bc

4ab - 3bc + 7a - 2b + 3bc---------------------- Collect like terms

4ab + 7a - 2b + 3bc - 3bc

4ab + 7a - 2b

6 0
3 years ago
For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard
stich3 [128]

Answer:

4.53

Step-by-step explanation:

Given the data :

4, 5, 10, 11, 15

The mean = 9

The standard deviation of a sample :

s = √[Σ(x - mean)²/(n-1)]

s = √[((4-9)² + (5-9)²+(10-9)² + (11-9)² + (15-9)²) / (5-1)]

s = √(25+16+1+4+36)/4

s = √20.5

s = 4.527

s = 4.53

5 0
3 years ago
1/2x + 1/3y = 7
abruzzese [7]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Ten people reported the number of hours they worked last week.
taurus [48]
First arrange them in ascending order:-

17 20 24 25 30 32 35 38 40 42
The median  = mean of middle 2 numbers = (30+32)/2 = 31
Lower quartile = 24 and upper quartile =  38
Inter quartile range = 38 - 24  = 14

Its the first choice.
4 0
3 years ago
Read 2 more answers
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