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3 years ago

Help anyone can help me do this question,I will mark brainlest.

Mathematics

1 answer:

vovikov84 [41]3 years ago

5 0

Answer:

for a. you first shade the intersectoin between a and b the shade the intersectio

Step-by-step explanation:

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Aneli [31]

Answer:

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2 years ago

What is the gradient of the straight line 2y = -3x - 8 ?

lions [1.4K]

Answer:

- $\frac{3}{2}$

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope (gradient) and c the y- intercept )

Given

2y = - 3x - 8 ( divide all terms by 2 )

y = - $\frac{3}{2}$ x - 4 ← in slope- intercept form

with gradient = - $\frac{3}{2}$

8 0

3 years ago

What is 36:39 in simplest form? А. 1:3 В. 36:39 С. 12:13 D. 13:12

Naddik [55]

Answer:

36:39

= 36/39 (divide by 3)

= 12/13

= 12:13 (option C)

5 0

3 years ago

Read 2 more answers

5x+3<7+7x Please explain in clear details

trasher [3.6K]

Answer:

5x just means 5 times so, 5 times a number(or variable)plus three is less than 7 times a number variable)plus 7

4 0

3 years ago

When the effective interest rate is 9% per annum, what is the present value of a series of 50 annual payments that start at $100

ser-zykov [4K]

Answer:

$1,109.62

Step-by-step explanation:

Let's first compute the future value FV.

In order to see the rule of formation, let's see the value (in $) for the first few years

End of year 0

1,000

End of year 1(capital + interest + new deposit)

1,000*(1.09)+10

End of year 2 (capital + interest + new deposit)

(1,000*(1.09)+10)*1.09 +10 =

$\bf 1,000*(1.09)^2+10(1+1.09)$

End of year 3 (capital + interest + new deposit)

$\bf (1,000*(1.09)^2+10(1+1.09))(1.09)+10=\\1,000*(1.09)^3+10(1+1.09+1.09^2)$

and we can see that at the end of year 50, the future value is

$\bf FV=1,000*(1.09)^{50}+10(1+1.09+(1.09)^2+...+(1.09)^{49}$

The sum

$\bf 1+1.09+(1.09)^2+...+(1.09)^{49}$

is the sum of a geometric sequence with common ratio 1.09 and is equal to

$\bf \frac{(1.09)^{50}-1}{1.09-1}=815.08356$

and the future value is then

$\bf FV=1,000*(1.09)^{50}+10*815.08356=82,508.35564$

The present value PV is

$\bf PV=\frac{FV}{(1.09)^{50}}=\frac{82508.35564}{74.35572}=1,109.616829\approx \$1,109.62$

rounded to the nearest hundredth.

5 0

3 years ago

Help anyone can help me do this question,I will mark brainlest.​

Help anyone can help me do this question,I will mark brainlest.