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dem82 [27]
4 years ago
12

Find the value of 9 - [42 - (3 + 2)].

Mathematics
1 answer:
julsineya [31]4 years ago
5 0
The answer to the expression is -2.
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h(x)=x 2 −1h, left parenthesis, x, right parenthesis, equals, x, squared, minus, 1 Over which interval does h hh have a negative
Semenov [28]

Answer:

(C)−3 ≤ x ≤ 1

Step-by-step explanation:

The average rate of change of function h over the interval a \leq x\leq b, is given by this expression:

\dfrac{h(b)-h(a)}{b-a}

Given the function h(x)=x^2-1 on the interval:− 3 ≤ x ≤ 1

h(1)=1^2-1=0\\h(-3)=(-3)^2-1=9-1=8

The average rate of change:

\dfrac{h(b)-h(a)}{b-a}=\dfrac{0-8}{1-(-3)}=\dfrac{-8}{4}=-2

Therefore, the function has a negative average rate of change over the interval − 3 ≤ x ≤ 1.

CHECK:

(A)Average rate of change of h(x) over the interval − 3 ≤ x ≤ 5=2

(B)Average rate of change of h(x) over the interval 1 ≤ x ≤ 4=5

(D)Average rate of change of h(x) over the interval − 1 ≤ x ≤ 5=4

5 0
3 years ago
Ini bagaimana ya caranya<br> Bantu caranya
Slav-nsk [51]

Answer:

Aku enga isa lihat, isa kan kamu bilangin di koment apa itu, terimakasi

Step-by-step explanation:

3 0
3 years ago
The table shows the number of touchdowns Luis scored during his football games.
Wittaler [7]

We are given frequency  distribution in the question

to find the probability distribution from frequency distribution  we need to divide frequency by total number of observations.

Here, total number of observations are 6+10+7+5=28

so , we will have probability distribution table as


X 0 1 2 3

P(x) .21 .35 .25 .17

probability distributiuon describes all possible values that a random variable can take within a given range.

frequency distribution is the presentation that presents  number of observation in given interval.


5 0
4 years ago
Javier has a basket of oranges and apples. The number of oranges is 2 more than twice the number of apples in the basket. The di
Soloha48 [4]
O=2a+2,  

o/2-a/2=4  this is your system of equations, 

It you wish to solve for apples, then simply substitute o from the first equation into the second equation...

(2a+2)/2-a/2=4  multiply both sides of the equation by 2

2a+2-a=8  combine like terms on the left side

a+2=8  subtract 2 from both sides 

a=6   

So Javier has 6 apples in the basket.
3 0
3 years ago
Aisha estimates the product of 12 and 2.4 by rounding 2.4 to the nearest whole.
Tanya [424]

Answer:

24

Step-by-step explanation:

12*2=2

2.4 rounds down

8 0
3 years ago
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