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3 years ago

PLEASE ANSWER PICTURE IS SHOWN

Mathematics

2 answers:

zysi [14]3 years ago

6 0

It's D. the function has exactly one x-intercept.

Hope I helped! ( Smiles )

Kruka [31]3 years ago

3 0

Your answer is c.the function has more than one x-intercept.

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A car takes 4 hours to reach a destination traveling at a speed of 63 km/h. How long will it take to cover the same distance if

Gre4nikov [31]

Answer:

It will take 4.5hrs to cover the same distance

The constant of variation,k=252

Step by step explanation

Given that,

$speed = \frac{distance}{time}$

From the question

Time=4hr

Speed=63km

By substitution we obtain,

$63= \frac{distance}{4}$

Cross multiplying we get,

$distance=63 \times 4$

$distance=252km$

Now,

speed=56km

Distance Covered=252km

By substitution:

We obtain,

$56= \frac{252}{time}$

Cross multiply

$56\times time=252$

Divide through by 56

$time= \frac{252}{56}$

$time=4.5hrs$

From the formula,

$speed= \frac{distance}{time}$

Which means that, speed and time varies inversely.

$speed\propto \frac{1}{time}$

Let k be variation constant

This implies that

$speed = k \times \frac{1}{time}$

$k=speed \times{time}$

Taken,

Time=4hrs

speed=56km

$k=56\times4$

$k=252$

4 0

3 years ago

Below, the two-way table is given for a

statuscvo [17]

Answer:

40%

Step-by-step explanation:

Probability that student is a male Given that it's a senior ::

Recall :

P(A | B) = (AnB) / B

Hence, we have ;

P(male | Senior) = number of (Male n Senior) / total Senoirs

From the table :

Total seniors = 2 + 3 = 5

Male n Seniors = 2

P(male | Senior) = 2 / 5 = 0.4 = 40%

6 0

3 years ago

You have a job and you make $11.45 per hour. If your total check for the week was $171.75, how many hours did you work this week

zaharov [31]

Answer: you have worked 15 hours

Step-by-step explanation: i multiplied $11.45 and 15 which got me to $171.75 your welcome ;)

6 0

2 years ago

Find the equation of the line passing through the points (5,21) and (-5,-29)

Assoli18 [71]

Answer:

Look below

Step-by-step explanation:

lets have -29 be y2 and -5 be x2

21 - (-)29

5 - (-)5

Subtracting a negative is just adding it so

21 + 29 50
5 + 5 10

50/10

this simplified, is 5/1 or 5

y=5x+b

now we need to find b, so we substitute y and y

x = 5

y = 21

21=5*5=b

5*5 is 25

now we need to get to 21

25 -4 is 21

b = -4

y=5x-4

3 0

2 years ago

.933333333 repeative as a fraction

Tanya [424]

Well if it is a number like .933333333 you will have to round it, So now it is .93 and .93 in a fraction is 93/100

7 0

3 years ago