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GenaCL600 [577]

3 years ago

14

Round each number to the nearest ten. What is the best estimate for the answer to 343.42 – 39.87?

2 answers:

11111nata11111 [884]3 years ago

6 0

with the nearest ten tha answer would be 300 because 340-40=300 and to the nearest thenth is would be 303.5 because 343.4-39.9=303.5

hope i helped

Dafna11 [192]3 years ago

3 0

The original answer for that question would be 303.55. The best estimate when you round to the nearest tenth the approximate answer would be 303.6 because the 5 in the hundredths place rounds the 5 in the tenths place to a 6. So the approximate answer would be 303.6....hope this helps.

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What is the product?

Kazeer [188]

Answer:

2) -81t² +16

Step-by-step explanation:

(9t -4)(-9t -4) = (9t x -9t) + (9t x -4) + (-4 x -9t) + (-4 x -4)

= -81t² - 36t + 36t + 16

= -81t² + 16

4 0

3 years ago

Read 2 more answers

Enter the difference between the rates of change for these two functions.

Alchen [17]

Answer:

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Step-by-step explanation:

Graph :

Choose any two points. (0 , 2) and (-1 , -2)

Rate of change = Change in y ÷ Change in x

$= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \frac{-2 - 2}{-1 - 0}\\\\= \frac{-4}{-1}\\\\= 4$

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3 years ago

I WILL MARK BRAINLIEST IN 5 MINUTES!<br> solve this and explain

miskamm [114]

Answer:

no, it's not.

Step-by-step explanation:

300- 284 = 16

284 - 236 = 48

236 - 156 = 80

156 - 44 = 112

for every one the top line goes up, the bottom line changes too, but it's not at a constant rate. it's not constant, therefore it cannot be linear.

the rate of change formula (or slope formula, they're the same thing) is :

y2- y1/ x2 -x1 and to solve it you plug in the points. x is the same a t and y is h

284-300/ 1-0

-16 /1

-16 (this is the rate of change between the first two points)

236- 284/ 2-1

-48/ 1

-48 (rate of change between the second and third points)

since the rate of change isn't constant, it's not possible for it to be a linear relationship.

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3 years ago

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xz_007 [3.2K]

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3 years ago

If the length of JK is 3x and the length of LM is 12x and the length of the entire line JM is 25x , find the length of KL.

Leona [35]

Answer:

10x.

Step-by-step explanation:

It is given that,

JK = 3x

LM = 12x

JM = 25x

Let as consider the line as shown in the below figure.

From the figure it is clear that,

$JK+KL+LM=JM$

$3x+KL+12x=25x$

$KL+15x=25x$

$KL=25x-15x$

$KL=10x$

Therefore, the length of KL is 10x.

6 0

3 years ago