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sertanlavr [38]
3 years ago
9

Someone help plz tyyyy!

Mathematics
1 answer:
Sveta_85 [38]3 years ago
4 0

Answer:

When y=7,9 the answer is yes when it = -10,-8 the answer is no.

Step-by-step explanation:

Simple substitution gets us the resulting values. for y=7 we get 15\geq 15 which is true. For y=9 we get 19\geq 15 which is also true. For the other values we get a negative number which is not a solution.

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Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!
lutik1710 [3]

Answer:

tan(84) = 2.9/x

Step-by-step explanation:

this means X= tan(84) ÷ 2.9

8 0
3 years ago
John randomly picks a number from 1 to 5 (both inclusive) and a letter from A to E (both inclusive). What is the probability tha
Greeley [361]

Answer:

P(A \cap B) = P(A) *P(B) =\frac{1}{5} \frac{1}{5}= \frac{1}{25}

So then the best option would be:

a. 1/25

Step-by-step explanation:

For this case we assume that the sample space for the numbers is :

S_1= [A,B,C,D,E]

And the sample space for the numbers is:

S_2 =[1,2,3,4,5]

Both sampling spaces with a size of 5.

We define the following events:

A="We select a 2 from the numbers"

B= "We select a E from the letters"

We can find the individual probabilities for each event like this:

P(A)= \frac{1}{5}

P(B) = \frac{1}{5}

And assuming independence we can find the probability required like this:

P(A \cap B) = P(A) *P(B) =\frac{1}{5} \frac{1}{5}= \frac{1}{25}

The last probability is the probability of obtain obtain a 2 AND an E

So then the best option would be:

a. 1/25

3 0
4 years ago
Read 2 more answers
50 multiplied by 100
ra1l [238]
When multiplying by 100 just add 2 zero's behind your second number. ANSWER:5,000
3 0
3 years ago
Write an function for each sequence and find the 15th term.
loris [4]
9,7,5,3,.................
8 0
3 years ago
The length of a rectangle is twice it’s width.The length is 12cm.Work out the area of the rectangle
aliina [53]

Answer:


Step-by-step explanation:

As with all word problems we first have to convert it to an equation or equations.

L = length of the Rectangle and W = its width

So L = 2 * W

A = area of the rectangle which is 128 cm^2

So    A = L * W = 128 cm^2

substitute 2W for L from the 1st equation to give    A = 2 * W * W = 2 * W^2 = 128 cm^2

Thus    W^2 = 64 cm^2

finally  W = 8 cm  and therefore  L = 2 * W = 16 cm

The perimeter P = 2 * (L+W) = 2* (8cm + 16cm) = 2 * 24cm = 48 cm

6 0
3 years ago
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