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Maksim231197 [3]
3 years ago
15

What is the value of x in the equation 5x+3=4x?

Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
4 0

Answer:

the answer for this would be -3

Volgvan3 years ago
3 0

Answer:

x = -3

Step-by-step explanation:

5x + 3 = 4x,

x + 3 = 0,

x = -3

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The Genetics & IVF Institute conducted a clinical trial of the YSORT method designed to increase the probability of conceivi
Reika [66]

Answer: The test statistic needed to test this claim= 10.92

Step-by-step explanation:

We know that the probability of giving birth to a boy : p= 0.5

i..e The population proportion of giving birth to a boy =  0.5

As per given , we have

Null hypothesis : H_0: p\leq0.5

Alternative hypothesis :  H_a: p>0.5

Since H_a is right-tailed , so the hypothesis test is a right-tailed z-test.

Also, it is given that , the sample size : n= 291

Sample proportion: \hat{p}=\dfrac{239}{291}\approx0.82

Test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}} , where n is sample size ,  \hat{p} is sample proportion and p is the population proportion.

\Rightarrow\ z=\dfrac{0.82-0.5}{\sqrt{\dfrac{0.5(1-0.5)}{291}}}\approx10.92

i.e. the test statistic needed to test this claim= 10.92

Critical value ( one-tailed) for  0.01 significance level = z_{0.01}=2.326

Decision : Since Test statistic value (10.92)> Critical value (2.326), so we reject the null hypothesis .

[When test statistic value is greater than the critical value , then we reject the null hypothesis.]

Thus , we concluded that we have enough evidence at 0.01 significance level to support the claim that the YSORT method is effective in increasing the likelihood that a baby will be a boy.

7 0
3 years ago
2t + t =68<br>a. find t<br>b. fint 2t​
balandron [24]

Answer:

t = 22\frac{2}{3}

2t = 45\frac{1}{3}

Step-by-step explanation:

3t = 68

t = 68/3

4 0
3 years ago
2. Generalize How is adding and subtracting
AleksAgata [21]

Answer:

adding and subtracting decimals is similar to adding and subtracting decimals because for both you add and sub both #s

Step-by-step explanation:

4 0
3 years ago
Please help will give 20 points to right answers (will give brainliest to very first correct answer) Tom walks 3.2 km every morn
nignag [31]
For this case we have the following conversions:
 1 mile = 1,609 km&#10;&#10;1 mile = 5,280 feet
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 We have then:
 (3.2) * (1 / 1,609) * (5280) = 10500.93226&#10;
 Rounding off we have:
 10501 feet
 Answer:
 
there are 10501 feet in 3.2 km
6 0
3 years ago
Help me on problem 4 !!!!I WILL GIVE BRAINLIEST!!!!!
Aleksandr-060686 [28]

Answer:

b=12.20

Step-by-step explanation:

its asking for a triangle. there are two legs (the straight sides) and a hypotenuse*.( the slanted one) the formula for finding a missing side is a2+b2=c2. (squared) then you plug in your numbers. and c2 is always the slanted side while a and b are the legs. Sorry this was late tho.

5 0
2 years ago
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