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Helen [10]
3 years ago
14

does anyone know this !???? it's a test !!!!! pls help. i'll give you brainliest and 15 points. pls show work !!!!

Mathematics
1 answer:
Reika [66]3 years ago
8 0

Answer:

since this is a parallelogram meaning the sides are equal then JE would equal the same as GJ so that is 15

Step-by-step explanation:

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Lisa and bart spin the spinner 60 times
ladessa [460]
The question is not complete. It should read;
<span>Lisa and Bart spin this spinner 60 times the result are below/ black=17 blue=15 orange=21 purple=7 a. What is the experimental probability of a spin of orange? B which color had an experimental probability that matched its theoretical probability

<u>Answers</u>
a) 0.35
b)Blue

<u>Explanation</u>
The probability of an event is its chance to occur. 
Probability is found by the formula,

Probability = (Number of favourable outcome)/(Number of total outcome)
       
Part a
</span>The orange are 21 and the total spins are 60. 
Probability (orange) = 21/60
                                = 0.35

Part 2
The theoretical probability of blue is normally 25%.
By calculating the experimental probability of blue we get,
P(blue) = 15/60
            = 1/4
In percentage
1/4×100 = 25%

So, the <span>color that had an experimental probability that matched its theoretical probability is blue.</span>
6 0
3 years ago
A
lana [24]

Answer:20

Step-by-step explanation:

3 0
3 years ago
F(n) = 2• (-3)^n
Mashutka [201]

Answer:

f(1)=-6

f(n)=f(n-1)(-3)

Step-by-step explanation:

We are given that

f(n)=2\cdot (-3)^n

We have to complete  the recursive formula of f(n).

Substitute n=1

f(1)=2\cdot (-3)

f(1)=-6

f(2)=2\cdot (-3)^2=18

f(3)=2\cdot (-3)^3=-54

\frac{f(2)}{f(1)}=\frac{18}{-6}=-3

\frac{f(3)}{f(2)}=\frac{-54}{18}=-3

It forms geometric sequence because the ratio of two consecutive terms are equal.

Therefore, the recursive formula

f(n)=f(n-1)r

f(n)=f(n-1)(-3)

7 0
3 years ago
Read 2 more answers
If the range of the function f(x)=x/4 is {28,30,32,34,36}, what is its domain
marissa [1.9K]
Hello:
x/4 = 28  ....   x = 112
x/4 = 30  ....   x =  120
x/4 = 32  ....   x =   128
x/4 = 34  ....   x =  136
x/4 = 36  ....   x =   144
the domain is :   <span>{112,120,128,136,144}</span>
3 0
3 years ago
Read 2 more answers
HellpppNeed help please urgent
Novay_Z [31]

Answer:

the answer is 63.59m²

Step-by-step explanation:

radius =  \frac{diameter}{2}  \\  =  \frac{3}{2}  \\  =  \frac{9}{2} (since \:1cm = 3m \: so \: 3cm = 9m) \\  = 4.5 \\ area \: of \: circle = \pi {r}^{2}  \\  = 3.14 \times (4.5) {}^{2}  \\  = 3.14 \times 20.25 \\  = 63.585 {m}^{2}

4 0
2 years ago
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