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dimulka [17.4K]
3 years ago
11

A javelin thrower is running at 7mph and throws her javelin at 18mph at an angle of 13o with the horizontal. Determine the resul

tant speed and direction of the javelin. i need the magnitude and the direction !!! HELP WILL MARK BRALIEST
Mathematics
1 answer:
RUDIKE [14]3 years ago
5 0
Will I get any points?
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Enter an inequality that represents the graph in the box.
ANTONII [103]

The inequality that represents the graph in the box  is

y>-3x+6

Given :

The graph of the linear inequality

Lets pick two points from the graph to frame the linear equation

Slope intercept form of the equation is

y=mx+b

Where m is the slope and b is the y intercept

y intercept is (0,6) from the graph

so b=6

Now we find out slope m  using formula

Pick two points (0,6) and (2,0)

slope = \frac{y_2-y_1}{x_2-x_1} \\m=\frac{0-6}{2-0} =-3

m=-3

So the equation is y=-3x+6

Now we check the inequality sign by testing any point on shaded area

lets pick (4,0)

lets plug in 4 for x  and 0 for y

y=-3x+6\\0=-3(4)+6\\\\0=-6\\0>-6

The inequality for the given graph is

y>-3x+6

we cannot use >= sign because we have dotted lines

Learn more : brainly.com/question/17203372

5 0
3 years ago
50 pts please help me due today links or incorrect answers will get reported
Bumek [7]

Using the normal distribution, the area underneath the shaded region <u>between the two z-scores</u> is given by:

C. 0.6766.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

Hence, for this problem, the area is the <u>p-value of z = 0.75 subtracted by the p-value of z = -1.3</u>.

Looking at the z-table, the p-values are given as follows:

  • z = 0.75: 0.7734.
  • z = -1.3: 0.0968.

Then:

0.7734 - 0.0968 = 0.6766.

Which means that option C is correct.

More can be learned about the normal distribution at brainly.com/question/15181104

#SPJ1

3 0
2 years ago
3(2y-3)=27can u solve this one
navik [9.2K]
3(2y-3)=27
6y-9=27
6y=36
y=6
7 0
3 years ago
Consider this function for cell duplication where the cells duplicate every minute.
astraxan [27]

Answer:

  A)  The 75 is the initial number of cells, and the 2 indicates that the number of cells doubles every minute

Step-by-step explanation:

When x=0 (no minutes have elapsed), the value of the function is ...

  f(0) = 75(2^0) = 75(1) = 75 . . . . the initial number of cells

As x increases by 1 (minute), the number of cells is multiplied by 2, so the 2 is the multiplier each minute. It indicates the number doubles. ("double" = "multiply by 2")

x is not defined, but for the function to make any sense, it must represent elapsed minutes.

3 0
3 years ago
A box has a perimeter of 27 1/2 ft. if the lenght is 9 ft. what is the area?
gavmur [86]

Answer:

Perimeter = (Length x 2) + (Width x 2)

27.5 = (9 x 2) + (Width x 2)

27.5 = 18 + (Width x 2)

9.5 = (Width x 2)

4.75 = Width

check:

27.5 = (9 x 2) + (4.75 x 2)

27.5 = 18 + 9.5

27.5 = 27.5

Since the width is 4.75 and the length is 9, we can multiply the two to get the area. 4.75 x 9 = 42.75 sq. ft.

8 0
3 years ago
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