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My name is Ann [436]
3 years ago
8

Estimate the following sum by rounding each number to the nearest ten.

Mathematics
2 answers:
Stels [109]3 years ago
8 0

Answer:

180

Step-by-step explanation:

130+30+20=18

Lina20 [59]3 years ago
6 0

Answer:

180

Step-by-step explanation:

129.5 --> 130

34.62 --> 30

19.1 --> 20

130+30+20 = 180

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How to solve this question please helpp!!!!!!<br><br><br> Q1. cos -1 ( - √3/2 )
Amiraneli [1.4K]

Answer:

cos(\sqrt{\frac{3}{2} }) or 0.339

Step-by-step explanation:

6 0
3 years ago
Which set of ordered pairs could represent a function? (2, 3), (2, 2), (2, 4), (2, 9), (2, –2) (1, 5), (2, 6), (1, 6), (4, 5), (
Ratling [72]

Given:

The set of ordered pairs in the options:

(a) (2, 3), (2, 2), (2, 4), (2, 9), (2, –2)

(b) (1, 5), (2, 6), (1, 6), (4, 5), (1, 4)

(c) (1, 0), (2, 0), (1, 3), (4, 3), (5, 7)

(d) (5, 1), (7, 3), (9, 5), (11, 7), (13, 9)

To find:

The set of ordered pairs that could represent a function.

Solution:

A set of ordered pairs represent a function, if there exist unique output (y-value) for each input (x-value).

In option (a) we have, five output values y=3,2,4,9,-2 for single input x=2. So, it is not a function.

In option (b) we have, three output values y=5,6,4 for single input x=1. So, it is not a function.

In option (c) we have, two output values y=0,3 for single input x=1. So, it is not a function.

In option (d), all inputs has unique output.

Therefore, the correct option is (d).

4 0
3 years ago
Read 2 more answers
What do I have to do
hichkok12 [17]

Answer:

+15

-721

0

+462

-1200

The positives are because it said 'above sea level', the negatives because it said 'below sea level' and zero because it said 'sea level'.

3 0
3 years ago
Which table shows exponential decay?
alexandr402 [8]

Answer:

Table 1,

1 16

2 8

3 4

4 2

Step-by-step explanation

The equation for this function can be written as

y = 16^1/x

This is exponential decay.  

7 0
3 years ago
Read 2 more answers
I NEED HELPPPP<br> 2( 2.5 - | -6|) need the answer ASAPPPPP
Sloan [31]

The equivalent value of the expression is -7

<h3>Modulus of a function</h3>

The modulus of an expression of value is equal to the positive of such function or value.

Given the expression

2(2.5 - |-6|)

Since the value of -6 is a modulus, the expression will become;

2(2.5 - |-6|) = 2(2.5) - 2(6)

2(2.5 - |-6|) = 5 - 12

2(2.5 - |-6|) = -7

Hence the equivalent value of the expression is -7

Learn more on equation here: brainly.com/question/2972832

#SPJ1

4 0
1 year ago
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