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3 years ago

Please Help! -_- If correct, I will give you brainliest.

Mathematics

2 answers:

sleet_krkn [62]3 years ago

5 0

4x−5≥7
Step 1: Add 5 to both sides.
4x−5 +5 ≥7 +5
4x≥12
Step 2: Divide both sides by 4.
4x≥12
4 4
x = ≥3

IgorLugansk [536]3 years ago

4 0

Step-by-step explanation:

plz mark me as brailiest plz.

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The following data shows the number of home runs hit by the top 12 home run hitters in Major League Baseball during the 2011 sea

KATRIN_1 [288]

Answer:

d. 25.25.

Step-by-step explanation:

A whisker plot is a type of box plot which is graphical representation of five number summary. It is used for explanatory data analysis. The baseball league has data set whose median is 45. When the outliner are present in data set the median measures central tendency.

8 0

4 years ago

A ball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. The ball's height h (in feet) after t s

ella [17]

Answer:

t = 2.52 seconds

Step-by-step explanation:

h=139-15t-16t^2

We want to know when the ball hits the ground

That would be when h=0

0 = 139-15t-16t^2

We can use the quadratic formula to find t

t = -b ± sqrt(b^2-4ac)

----------------------

where a = -16 b = -15 and c = 139

t = -(-15) ± sqrt((-15)^2-4(-16)139)

----------------------

2(-16)

t = (15) ± sqrt(225+8896)

----------------------

-32

t = (15) ± sqrt(9121)

----------------------

-32

t = 15+ sqrt(9121) t = 15- sqrt(9121)

-------------------- or -------------------

-32 -32

-3.453247707 or 2.515747707

Since time cannot be negative

2.515747707

Round to the nearest hundredth

t = 2.52 seconds

6 0

3 years ago

What is the function graphed below? O y= x + 0.5 O y= 2 x + 0.5 O y=x O y=(0.5)

olga2289 [7]

Answer:

A. y= x + 0.5

Step-by-step explanation:

We see that:

y- intercept is b = 0.5, point (0, 0.5)
Rate of change is m = 1 as each next value of y is greater by 1.

The function is:

y = mx + b
y = x + 0.5

Correct choice is A

5 0

3 years ago

A coin is to be spun 25 times. Let x be the number of spins that result in heads (H). Consider the following rule for deciding w

larisa [96]

Answer:

0.0433

Step-by-step explanation:

Since we have a fixed number of trials (N = 25) and the probability of getting heads is always p = 0.05, we are going to treat this as a binomial distribution.

Using a binomial probability calculator, we find that the probability of obtaining heads from 8 to 17 times is 0.9567 given that the con is fair. The probability of obtaining any other value given that the coin is fair is going to be:

1 - 0.9567 = 0.0433

Since we are going to conclude that the coin is baised if either x<8 or x>17, the probability of judging the coin to be baised when it is actually fair is 4.33%

5 0

3 years ago

Solve the inequality and then graph it t-3 < -2

SSSSS [86.1K]

Hi there!

Answer:

t<1

*The answer must have a positive sign.*

Step-by-step explanation:

First, you add by 3 from both sides of an equation.

$t-3+3$

And then, you add/subtract from left too right.

$(-2)+3=-1$

It change negative to positive sign.

Final answer is t<1

Hope this helps!

-Charlie

Have a nice day! :)

7 0

3 years ago