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3 years ago

Solve the following inequality:4x^2-25<0

Mathematics

2 answers:

Troyanec [42]3 years ago

7 0

Step-by-step explanation:

is that thing A less than sign

NARA [144]3 years ago

5 0

Answer:

is that thing a less than sign?

Step-by-step explanation:

You might be interested in

What percent of 130 is 45.5?

docker41 [41]

Step-by-step explanation:

45.5 percent *130 =

(45.5:100)*130 =

(45.5*130):100 =

5915:100 = 59.15

Now we have: 45.5 percent of 130 = 59.15

5 0

4 years ago

The speed of a motorcycle increases from 10km/hr to 50km/hr in 9 seconds. What is its acceleration?

ivanzaharov [21]

Acceleration of motorcycle= 1.23m/s^2

Step-by-step explanation:

We need to find the acceleration of motorcycle When its speed increases from 10km/hr to 50km/hr in 9 seconds

Given:

Initial speed= 10km/hr

Final speed= 50km/hr

Time = 9 seconds

Acceleration = ?

Formula: $Acceleration =\frac{Change\,\,in\,\,velocity}{time}$

Solution:

We will first convert the speed from km/hr to m/s

Converting Initial speed 10km/hr into m/s

1 km = 1000 m

10 km = 10,000 m

and 1 hr = 3600 s

So, Initial speed = 10,000/3600 = 2.77 m/s

Converting Final speed 50km/hr into m/s

1 km = 1000 m

50 km = 50,000 m

and 1 hr = 3600 s

So, Initial speed = 50,000/3600 = 13.88 m/s

Now Using formula of acceleration:

$Acceleration =\frac{Change\,\,in\,\,velocity}{time}\\Change\,\,in\,\,velocity =Final\,\,speed-Initial\,\,speed\\Change\,\,in\,\,velocity=13.88 - 2.77\\Change\,\,in\,\,velocity = 11.11 m/s\\Acceleration =\frac{11.11}{9}\\Acceleration =1.23 m/s^2$

So, Acceleration of motorcycle = 1.23m/s^2

Keywords: Acceleration, Change in speed

Learn more about Acceleration at:

#learnwithBrainly

6 0

3 years ago

The awnser Choice for each on is( one solution no solution infinity many solutions of all real numbers ) plz help

Mama L [17]

1: one solution

Explanation: We see that the variable x is equal to 9 (and only 9). Therefore there is only one solution

2: infinitely many solutions

Explanation: When an equation has infinitely many solutions, it means that any real number (aka <em>all real numbers</em>) would satisfy that equation. For example 2x = 2x. Any number you plug in for x would result in both sides being equal. So you know an equation has infinitely many solutions if both sides are the same

3: no solution

Explanation: 7 does not equal 4 so you can't solve this equation.

4: no solution

Explanation: 7 is not less than 7, that is impossible, so there is no solution.

5: one solution

Explanation: 8 <em>is</em> greater than or equal to -2, so this inequality is true, meaning it represents one solution

5 0

3 years ago

Please solve this question

ANTONII [103]

The probability that a randomly selected x-value from the distribution will be in the interval: