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vazorg [7]
3 years ago
7

Solve 2x squared + 13x equals to 15​

Mathematics
2 answers:
sergejj [24]3 years ago
5 0

Answer:

x=1, x=-15/2

Step-by-step explanation:

xxMikexx [17]3 years ago
4 0
Hi there hope you can see the pic please let me know if the answer is wrong and I will try to redo it for you

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Please work this out or I get a detention
mylen [45]

Answer:

a = 11 , b = 2

Step-by-step explanation:

\frac{(4-\sqrt{5})(4+\sqrt{5}) }{2\sqrt{11}} =  \frac{ \sqrt{a}}{y} \\Hence,\\\frac{4^2-(\sqrt{5})^2 }{2\sqrt{11}} = \frac{ \sqrt{a}}{y}\\\frac{16-5}{2\sqrt{11} } = \frac{ \sqrt{a}}{y}\\\frac{11}{2\sqrt{11}} = \frac{ \sqrt{a}}{y}\\\frac{\sqrt{11}*\sqrt{11} }{2\sqrt{11}} = \frac{ \sqrt{a}}{y}\\\frac{\sqrt{11} }{2} = \frac{ \sqrt{a}}{y}\\a=11,b =2

6 0
3 years ago
Read 2 more answers
Which is the graph of f(x) =4(1/2)^x
Nuetrik [128]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

f(x)=4(\frac{1}{2})^{x}

This is a exponential function of the form

y=a(b)^{x}

where

a is the initial value

b is the base

r is the rate

b=1+r

In this problem we have

a=4 ----> initial value (y-intercept)

b=1/2

so

1+r=1/2

r=1/2-1=-1/2

r=-0.5=-50% ----> is negative because is a decrease rate

using a graphing tool

The graph in the attached figure

6 0
4 years ago
A modified roulette wheel has 44 slots.One slot is 0, another is 00, the others are numbered 1 trough 42 respectively.You are pl
Gwar [14]

Answer:

Step-by-step explanation:

There are 44 slots with numbers 0 , 00 , 1 ,2 ...42

Bet is placed for an odd number

Total odd numbers are = 1,3,...41 = 21

Total numbers = 44

a) Probability of winning=n(odd numbers)/total numbers

= \frac{21}{44} \\=0.4773

b) Actual odds against winning = \frac{0.4773}{1-0.4773} \\=0.9131

c) Pay off odds are 1:1.

So profit if we bet 14 dollars = 14 (0.9131) = 12.7833

d) If pay off is the same as 0.4773:0.5227=0.9131:1

Profit would be =0.9131*0.9131=\\0.8338

7 0
3 years ago
Is the following composition of transformations a glide reflection? Justify
levacccp [35]

Answer:

Yes

Step-by-step explanation:

6 0
3 years ago
Biometric measures evaluate: Question 17 options: data about a person's heartbeat, perspiration levels, respiration, and body mo
olga2289 [7]

Answer:

data about a person's heartbeat, perspiration levels, respiration, and body movements.

Step-by-step explanation:

the answer to the question is that

biometric measures are useful for evaluating data like that of heartbeat, perspiration levels, respiration, body movements of a person.

Biometrics is useful for the evaluation of the physical characteristics of a person. such a measure is for authentication and security identification. the system gives allowance for certain features of a person to be recognized using biometric data and also algorithm.

3 0
3 years ago
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