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2 years ago

Evaluate 3x + 4y when x = 2 and y = 5

Mathematics

2 answers:

pshichka [43]2 years ago

5 0

The answer is 26!!!! Hope this helps

RideAnS [48]2 years ago

3 0

Answer:

Step-by-step explanation:

3*2+4*5=6+20=26

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Please help me on math homework! File attached! :D

r-ruslan [8.4K]

Use pythagorena theorme

D= $\sqrt{(x1-x2)^{2}+(y1-y2)^{2}}$
NOTE: x1 and x2 means the first x and second x, not x^1 and x^2

points given are
(1,1)
(5,6)
x1=1
y1=1
x2=5
y2=6
D= $\sqrt{(1-5)^{2}+(1-6)^{2}}$
D= $\sqrt{(-4)^{2}+(-5)^{2}}$
D= $\sqrt{16+25}$
D= $\sqrt{41}$
6.403

answer is B

7 0

3 years ago

Read 2 more answers

Which measures of central tendency would be affected if the outlier 11 was added to the following set 27,20,34,37,21,42,39

MrRa [10]

Answer:

Median will not be affected by the outlier.

Step-by-step explanation:

With the outlier, the mean will be dragged way down. The median will likely be about the same. Mean is non-resistant to outliers, median is resistant.

Hope this helps!

5 0

3 years ago

Determine if line AB and CD are congruent or not congruent given the coordinates A(0, 13), B(7, 11), C(12, 10), and D(10, 3). Ex

drek231 [11]

Answer:

Step-by-step explanation:

The lines arent equal

5 0

3 years ago

Mai invests $20,000 at age 20. She hopes the investment will be worth $500,000 when she turns 40. If the interest compounds cont

love history [14]

Answer:

$\approx$ 17.5% per annum

Step-by-step explanation:

Given:

Money invested = $20,000 at the age of 20 years.

Money expected to be $500,000 at the age of 40.

Time = 40 - 20 = 20 years

Interest is compounded annually.

To find:

Rate of growth = ?

Solution:

First of all, let us have a look at the formula for compound interest.

$A = P \times (1+\frac{R}{100})^T$

Where A is the amount after T years compounding at a rate of R% per annum. P is the principal amount.

Here, We are given:

P = $20,000

A = $500,000

T = 20 years

R = ?

Putting all the values in the formula:

$500000 = 20000 \times (1+\frac{R}{100})^{20}\\\Rightarrow \dfrac{500000}{20000} =(1+\frac{R}{100})^{20}\\\Rightarrow 25 =(1+\frac{R}{100})^{20}\\\Rightarrow \sqrt[20]{25} =1+\frac{R}{100}\\\Rightarrow 1.175 = 1+0.01R\\\Rightarrow R \approx17.5\%$

So, the correct answer is $\approx$ 17.5% per annum and compounding annually.

6 0

3 years ago

A stock has produced returns of 14.5 percent, 4.8 percent, 10.2 percent, and 6.1 percent over the past four years respectively.

Anettt [7]

The geometric average return is the the nth root of the product of the stock returns. So we have nâš r1 * r2 * r3. Where n is the number of returns. So we have 4âš(14.5 * 4.8 * 10.2 * 6 1) This gives us 4âš ( 4330.512) The fourth root of 4330.512 is 8.1121 percent.

3 0

3 years ago