All categories

3 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPPPPp

Mathematics

1 answer:

maria [59]3 years ago

3 0

36. R1 = 0.8 and r2= 0.92
R1+ r2= 0.8+ 0.92= 1.72

37. 2000= 3276.8• 0.92 ^(t-5)
2000/3276= 0.92^(t-5)
0.61= 0.92^(t-5)
Log 0.92(0.61)= t-5
5.92= t-5
T= 10.92

38. Remainder is 108

You might be interested in

4. Which is the better value? Show your work and explain your choice.

Tems11 [23]

Option B

I think its opinion B because its cheaper

3 0

2 years ago

Help w this also! please<3

jolli1 [7]

Answer:

equation for line: y = 5/3x -7/3

Step-by-step explanation:

The equation for a linear line is y = mx + c. m is the gradient of the line, also known as slope. So, m = 5/3.

Next we need to find c. Since we know a point the line must intersect, we can sub this into our line equation to get an answer:

(2,1) x=2,y=1

1 = 5/3*2 + c

1 = 10/3 + c

1 - 10/3 = c

3/3 - 10/3 = c

-7/3 = c

The final eqaution of the line is: y = 5/3x -7/3

7 0

2 years ago

32x + 23 - 42 = 365 What does x equal?

liubo4ka [24]

As you bring all the non-variable numbers over to the right side, it becomes 384 which you then will divide the 32 in x which gives us 12. so x=12

6 0

3 years ago

Alex wants to put a fence around a square garden. The garden has an area of 784 ft2.

Irina18 [472]

P = 4s
P = 4(28)
P = 112 ft

The perimeter of the garden is 112 feet.

7 0

2 years ago

Read 2 more answers

A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function?

mamaluj [8]

Answer:

Option C. $y=(3/4)x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Find the value of the constant k

For the point (-8,-6)

$k=y/x=(-6/-8)=3/4$

For the point (12,9)

$k=y/x=(9/12)=3/4$

Note A single point was required to find the constant k (because the line passes through the origin)

The equation is equal to

$y=(3/4)x$

7 0

3 years ago

Read 2 more answers