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slamgirl [31]
3 years ago
6

Me ned formula plz plz sub to my YT at Cheese_Club_YT

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0

Answer:

To solve you move 52 to the left of TR

Step-by-step explanation:

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Help plz 13. Mildred is flying a kite on a 30 m string. The angle of elevation of the kite measures 40 degrees,
scoray [572]

Answer: 21.3m

Step-by-step explanation:

The height of the kite of the ground would be calculated as:

We have to calculate the question using a right angled triangle that has angle ACB as 90° while angle CAB will be 40°.

Therefore, the height of the kite would be:

= 30 sin 40 + 2

= 30 (0.6428 ) + 2

= 19.284 + 2

= 21.284 m

= 21.3 m

7 0
3 years ago
A box without a top is made from a rectangular piece of cardboard with dimensions 12 cm by 10 cm, by cutting out square corners
olga nikolaevna [1]

Answer:

  x ≈ 1.8 cm gives the greatest volume

Step-by-step explanation:

After cutting x cm from each corner in each direction, the cardboard can be folded up to make a box that is x cm deep and (12 -2x) by (10 -2x) in length and width. Clearly, values of x are limited to 5 or less, since cutting 5 cm from each side would leave a width of zero. Then the volume is given by ...

  V = x(12 -2x)(10 -2x)

The plot below shows the value of this cubic equation for volume, and identifies the peak as (x, V) ≈ (1.8, 96.8). That is, a cut of 1.8 cm will result in a box of approximate volume 96.8 cm³.

5 0
3 years ago
It is known that a particular laboratory task takes the average person 2.5 seconds. A researcher was interested in whether older
Alchen [17]

Answer:

 The decision rule is  

Fail to reject the null hypothesis

  The conclusion is

 There is no sufficient evidence to conclude that older people are slower

Step-by-step explanation:

From the question we are told that  

    The average time taken is  \mu =  2.5 \ seconds

      The  sample size is  n =  30

     The sample mean is  \= x =  2.7 \  seconds

      The standard deviation is  \sigma  =  1.4 \  seconds

The null hypothesis is  H_o:  \mu = 2.5

The alternative hypothesis  is  H_a :  \mu >  2.5 \  seconds

Generally the test statistics is mathematically represented as

                z =  \frac{\= x - \mu }{ \frac{\sigma }{ \sqrt{n} } }

=>              z =  \frac{ 2.7  -2.5 }{ \frac{1.4}{ \sqrt{30} } }

=>              z =  0.7825

From the z table  the area under the normal curve to the right corresponding to  0.7825   is  

                p-value  =  P(Z > 0.7825  ) =  0.21696

So from the question we see that the p-value  >  \alpha hence

 The decision rule is  

Fail to reject the null hypothesis

  The conclusion is

 There is no sufficient evidence to conclude that older people are slower

5 0
3 years ago
Write an equation of the line with the given slope and y-intercept
Ilya [14]

Answer:

The equation of line is y = x + 10

Step-by-step explanation:

Given as :

The slope of line = m = 1

The y intercept of line is 10

Now equation of line in intercept form is y = m x + c

∵ The line have y intercept only then x axis of line is zero

So, The equation of line

 10 = 1 × 0 + c

Or,  10 = 0 + c

So, c = 10

∴ The new equation of line become y = 1 × x + 10

I,,e   y = x + 10

Hence The equation of line is y = x + 10  Answer

3 0
3 years ago
Do not understand need help asap
xxMikexx [17]
This situation shows a relationship that is proportional because in each room, the square footage is 1/3 of the price
7 0
3 years ago
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