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kumpel [21]
3 years ago
8

Joe barrowed $2,000 from the bank at a rate of 7% simple interest per year. How much will be in your account in 5 years?

Mathematics
1 answer:
timofeeve [1]3 years ago
4 0
For the answer to the question above,
The simple interest formula is I = P * r * t

P is the principal (2,000)
r is the interest rate (7% or 0.07)
t is the time (5)

2000 * 0.07 * 5 = 700

$700.00 is the interest

Joe has to pay $700.00 in interest.
I hope this helps
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A random sample of 85 adults found that the average calorie consumption was 2100 per day. Previous research has found a standard
denpristay [2]

Answer:

$15600

Step-by-step explanation:

Minimum number of samples can be calculated using the formula:

N≥(\frac{z*s}{ME})^2 where

  • N is the sample size
  • z is the corresponding z-score for 95% confidence level (1.96)
  • s is the standard deviation of the calorie consumption (450 cal.)
  • ME is the margin of error that the researcher is willing to accept. (50 cal)

N≥(\frac{1.96*450}{50})^2 =311.2

Therefore, minimum required sample size for 50 cal standard error in 95% confidence is 312

Since the survey costs $50 for each person then the survey costs minimum

50*312=$15600

5 0
3 years ago
An= a +(n-1) (-2)<br><br><br><br> Find a10 for the sequence that follows the rule
alexdok [17]

Step-by-step explanation:

a10 = a + (10-1) (-2)

a10 = a-18

3 0
3 years ago
Read 2 more answers
Is ac perpidicular to xz? explain
pashok25 [27]

AC is not perpendicular to XZ, because the slope of AC is -1 and the slope of XZ is 2/3. Hence, the correct answer options are:

B. Is not

A. -1

<h3>How to calculate the slope of any straight line?</h3>

Mathematically, the slope of any straight line can be calculated by using this formula;

Slope, m = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope, m = (y₂ - y₁)/(x₂ - x₁)

For the slope of AC, we have:

Point at A = (-1, 3)

Point at C = (4, -2)

Slope, m of AC = (-2 - 3)/(4 - (-1))

Slope, m of AC = (-2 - 3)/(4 + 1)

Slope, m of AC = -5/5.

Slope, m of AC = -1.

For the slope of XZ, we have:

Point at X = (12, 2)

Point at Z = (6, -2)

Slope, m of XZ = (-2 - 2)/(6 - 12)

Slope, m of XZ = -4/-6.

Slope, m of XZ = 2/3.

In Mathematics, a condition that must be met for two lines to be perpendicular is given by this mathematical expression:

m₁ × m₂ = -1

-1 × 2/3 = -1

-2/3 = -1 (False).

Read more on slope here: brainly.com/question/3493733

#SPJ1

<u>Complete Question:</u>

Look at the picture. Then choose the correct option from each drop-down menu.

AC choose..

A. Is

B. Is not

perpendicular to XZ, because the slope of AC is Choose...

A. -1

B. -2

C. 2

D. 1

and the slope of XZ is 2/3

5 0
1 year ago
How to express a polynomial sum in simplest form?
klemol [59]

Answer:

Polynomials can be simplified by using the distributive property to distribute the term on the outside of the parentheses by multiplying it by everything inside the parentheses. You can simplify polynomials by using FOIL to multiply binomials times binomials.

Step-by-step explanation:

6 0
3 years ago
Help me please ASAP
Lina20 [59]

Answer:

m<2 = 70degrees

m<3 = 70degrees

m<4 = 110degrees

m<5 = 110degrees

m<6 = 70degrees

m<7 = 70degrees

m<8 = 110degrees

Step-by-step explanation:

A line has the angles of 180 degrees so if m<1 is 110 then m<2 must be 70degrees. Then m<4 is opposite side of m<1 so it has to be the same number of degrees and the same for m<3 is the opposite side of m<2.

You repeat the process with 5678

7 0
3 years ago
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