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3 years ago

What is 2,852.1 rounded to the nearest tenths

2 answers:

6 0

When you round to the nearest tenth ignore the numbers that are not decimals except for the ones place, in this case you would round .1 so it would not change the number you have so your answer will be 2,852

tino4ka555 [31]3 years ago

4 0

$2,852.1\to\boxed{2,852.0}$

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Make a the subject of: v = u + at

zmey [24]

Answer:

$a = \frac{v - u}{t} \:$

Step-by-step explanation:

$v = u + at$

$at = v - u$

$a = \frac{v - u}{t}$

8 0

3 years ago

Y=-2x²-8x-5 domain and range

Jobisdone [24]

Answer:

Domain: All real numbers

Range: y≤3

Step-by-step explanation:

The given function is

$y = - 2 {x}^{2} - 8x - 5$

This is a polynomial function.

The domain is set of all values of x, that makes this function defined.

Since polynomial functions are defined everywhere, the domain is all real numbers.

To find the range we put the function in vertex form:

$y = - 2( {x}^{2} + 4x) - 5$

$y = - 2( {x}^{2} + 4x + 4) - 5 + - 4 \times - 2$

$y = - 2( {x} + 2)^{2} - 5 + 8$

$y = - 2( {x} + 2)^{2} + 3$

The maximum value is 3

The function turns downward, hence the range is:

$y \leqslant 3$

6 0

3 years ago

2x + 3y = 3 and x + 6y = -3

jekas [21]

Answer:

Step-by-step explanation:

Multiplying x+6y=-3 with 2 so its equal to first eqn,

Eliminating,

2x + 3y = 3 (1)

2x +12y = -6 (2) (because subtracting)

------------------

-9y =9

∴y=-1

eq. y in 1

2x -3=3

2x=3+3

x=6/2

Pls mark me brainliest

4 0

2 years ago

*BRAINLIEST* (Easy Question: Warm UP) Find a positive solution to each equation: x2 = 9/4?

prisoha [69]

Answer:

A

Step-by-step explanation:

Given

x² = 9/4

Solving

Take the square root on both sides
√x² = √9/4
⇒ x = 3/2
Option A is the correct option.

7 0

2 years ago

Read 2 more answers

A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(

Marina86 [1]

$f(t) = -16t^{2} +48t + 100$
Average rate of change from t = 3 seconds to t = 5 seconds = $\frac{f(5)-f(3)}{5-3} = \frac{(-16( 5^{2})+48(5)+100)-(-16( 3^{2})+48(3)+100 }{2}=$ $\frac{(-16(25)+240+100)-(-16(9)+144+100)}{2} = \frac{(-400+240+100)-(-144+144+100)}{2}=$ $\frac{-60-100}{2} = \frac{-160}{2} = -80$

5 0

2 years ago