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Kitty [74]
3 years ago
7

-4f - 9 f + 15

Mathematics
1 answer:
Vikentia [17]3 years ago
8 0

Answer:

13f+15

Step-by-step explanation:

- plus - equals addition so you add 4 and 9 then the two - will equal to a + so there will be no sign there 15 cant be added to 13F because it doesnt have the same letter (f)   (i said it in the simplest way possible hope u get a c or b ^^)  

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-5(6-5x)=2(7x-4)<br> What does x equal to?
7nadin3 [17]

Answer:

x = 2

Step-by-step explanation:

add the distribution property, then add 30 then - 14x then divide by 11

7 0
3 years ago
An investment of $8500 increases in value by 4.5% every year. How long until the investment
riadik2000 [5.3K]

Answer:

16 years

Step-by-step explanation:

Given data

Principal= $8500

Rate= 4.5%

Final amount=  $17,323

The expression to find time in compound interest is given as

t= ln(A/P)/r

substitute

t= ln(17323/8500)/0.045

t= ln(2.038)/0.045

t=0.711/0.045

t= 15.8 years

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6 0
3 years ago
Point C has the coordinates (–1, 4) and point D has the coordinates (2, 0). What is the distance between points C and D?
Luba_88 [7]

We conclude that the distance between points C and D is 5 units.

<h3>How to find the distance between the two points?</h3>

Remember that if we have two points (x₁, y₁) and (x₂, y₂), the distance between these points is:

d = √( (x₂ - x₁)^2 + (y₂ -  y₁)^2)

In this case, we know that:

Point C has the coordinates (-1, 4)

Point D has the coordinates (2, 0)

Then the distance between these two points is:

d = √( (-1 - 2)^2 + (0 - 4)^2) = √25 = 5

We conclude that the distance between points C and D is 5 units.

If you want to learn more about distance between points:

brainly.com/question/7243416

#SPJ1

4 0
2 years ago
ABCD is a trapezium in which AB parallel DC ,DC=30cm and AB=50cm .If X and Y are respectively the mid point of AD and BC then pr
Ratling [72]
I have attached the answer. Hope it helps.
Download pdf
3 0
3 years ago
What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?
iragen [17]

Answer:

y = 2x + 2

Step-by-step explanation:

The general form

is;

y = mx + b

where m is the slope and b is the y-intercept

so we have;

y = mx + 2

To get m, substitute the point (-1,0)

So we have

0 = -m + 2

m = 2

So the equation is;

y = 2x + 2

4 0
3 years ago
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