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Vitek1552 [10]
3 years ago
5

Estimate the square root to the nearest (a) integer and (b) tenth. √-335/2

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

The answer is i√167.5 i know because i looked it up on the web

i apologize if it is wrong.

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The Boardman family walked two over five of a mile in two over seven of an hour. What is their unit rate in miles per hour?
hichkok12 [17]
If the family walked 2/5 of a mile in 2/7 of an hour their MPH would be 2.8mph 
3 0
3 years ago
Solve the inequality −x/2<4
FinnZ [79.3K]

Isolate the x. First, multiply 2 to both sides

-x/2(2) < 4(2)

-x < 4(2)

-x < 8

Isolate the x. Divide - 1 to both sides (because you are dividing a negative number, flip the sign).

-x/ -1 < 8/-1

x > -8 is your answer

hope this helps

5 0
3 years ago
Please help me out!​
seropon [69]

Answer:

Second option

Third option

Fourth option

Step-by-step explanation:

We have the following quadratic function

f(x) =(x-1)(x+7)

Use the distributive property to multiply the expression

f(x) =x^2+7x-x-7

f(x) =x^2+6x-7

For a function of the form f (x) = ax ^ 2 + bx + c the x coordinate of the vertex is:

x =-\frac{b}{2a}

Then in this case the coordinate of the vertex is:

x =-\frac{6}{2(1)}

x =-3

To obtain the y coordinate of the vertex we evaluate the function at x = -3

f(-3) =(-3)^2+6(-3)-7

f(-3) =9-18-7

f(-3) =-16

Then the vertex is:  (-3, -16)

We can see in the graph that the zeros of the function are x=1 and x=-7

Then the function is decreasing from -∞ to -3 and then it is increasing from -3 to ∞

The function is positive for x and x> 1

The correct answers are:

Second option

Third option

Fourth option

7 0
3 years ago
What are the zeros of the function: f(x) = 2x^2-50
yan [13]
When f(x) = 0, 

2x^2 - 50 = 0

2(x^2 - 25) = 0

2(x- 5)(x + 5) = 0

(x - 5) = 0 \ or  \ (x + 5) = 0

x = 5 \ or \ x = -5

--------------------------------
Answer : x = 5 or -5
--------------------------------

3 0
3 years ago
Read 2 more answers
Four years ago, you started a job with an annual salary of $40,000. At the end of each year on the job, you received a raise of
Marrrta [24]

Answer:

the third one

Step-by-step explanation:

3 0
3 years ago
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