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3 years ago

Solve for x. 1/4+1/2+x= -3/4

Mathematics

1 answer:

o-na [289]3 years ago

6 0

Answer:Negative negative one and 2/3

Step-by-step explanation:First take a4+1/2 that equals three force then 3/4+ X equals -3/4 3/4+ X minus X equals -3/4 minus X 3/4 equals -1 and threeFirst take a4+1/2 that equals three force then 3/4+ X equals -3/4 3/4+ X minus X equals -3/4 minus X 3/4 equals -1 3/4 -1 and 3/4÷3/4 equals -2 aive first take a4+1/2 that equals 3/4 then 3/4+ X equals -3/4 3/4+ X minus X equals -3/4 minus X 3/4 equals -1 3/4 -1 and 3/4÷3/4 equals -2 1/3! I hope this helps!

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Test the claim about the difference between two population means mu_1 and mu_2 at the level of significance alpha. Assume the sa

d1i1m1o1n [39]

Answer:

a) Alternative hypothesis, $H_{a} : \mu_{1} \neq \mu_{2}$

b) z = -2.91, Pvalue = 0.002

c)Option C. Reject H_0. There is enough evidence at the 1% level of significance to reject the claim.

Step-by-step explanation:

a) Null hypothesis, $H_{0} : \mu_{1} = \mu_{2}$

Alternative hypothesis, $H_{a} : \mu_{1} \neq \mu_{2}$

b) Standardized test statistic

Level of significance, $\alpha = 0.01$

$\sigma_{1} = 3.2$

$\sigma_{2} = 1.7$

$X_{1} = 16\\X_{2} = 18\\n_{1} = 30\\n_{2} = 27$

$z = \frac{\mu_{1}- \mu_{2} }{\sqrt{\frac{\sigma_{1} ^{2} }{n_{1} } + \frac{\sigma_{2} ^{2} }{n_{2} } }}$

$z = \frac{16-18 }{\sqrt{\frac{3.2^{2} }{30 } + \frac{1.7 ^{2} }{27 } }}$

z = -2.91

Checking the p-value that corresponds to z = -2.906

P-value = 0.002

c) What is the proper decision

P-value = 0.002

Level of significance, α = 0.01

0.002 < 0.01

Since Pvalue < α, the null hypothesis H₀ should be rejected.

Option C is the correct option.

3 0

3 years ago

The length of Kasey’s garden is 4 5/8 feet find the width of kasey’s garden if it is 2 7/8 feet shorter than the length.

abruzzese [7]

To find the width you must subtract 2 7/8 from the length.

4 5/8
- 2 7/8
=
3 13/8
- 2 7/8
=
1 6/8
=
1 3/4 feet

5 0

3 years ago

Read 2 more answers

Solve the following system of equations. 2x +y = 3 = 3 2 = 2y - 1 - 1

sukhopar [10]

Answer: or (1,1)

Step-by-step explanation:

You can apply the Method of substitution.

Knowing that (second equation), you can substitute it into the first equation and solve for the variable y:

Now you need to substitute into the second equation to calculate the value of the variable x. Then:

Then, the solution is:

or (1,1)

3 0

3 years ago

Need help with this one

Anna007 [38]

Answer:

(d) 42°

Step-by-step explanation:

An angle bisector divides an angle into two equal parts. The original angle has double the measure of either of the parts.

<h3>setup</h3>

∠VSU = 2×∠VST

9x +3 = 2×(5x -3) . . . . . . . substitute given expressions

<h3>solution</h3>

9x +3 = 10x -6 . . . . . . eliminate parentheses

9 = x . . . . . . . add 6-9x

∠VST = 5(9) -3 = 42 . . . . degrees

m∠VST = 42°

4 0

2 years ago

Let n represent the position of a term in the sequence below.

spayn [35]

The algebraic expression can be used to find the nth term of the sequence is:

$a_n = 5+3n$

Where, $n\geq 1$ and n is a positive whole number

Solution:

Given sequence is:

8, 11, 14, 17, 20, 23

Let us find the common difference between terms

11 - 8 = 3

14 - 11 = 3

17 - 14 = 3

20 - 17 = 3

23 - 20 = 3

Thus the common difference between successive term and previous term is constant

Thus this is a arithmetic sequence

The formula for nth term term of arithmetic sequence is given as:

$a_n = a_1+(n-1)d$

Where,

$a_n$ is the nth term of sequence

$a_1$ is the first term of sequence

d is the common difference between terms

Here in this sequence, 8, 11, 14, 17, 20, 23

$a_1 = 8\\\\d = 3$

Therefore,

$a_n = 8+(n-1)3\\\\a_n = 8+3n -3\\\\a_n = 5+3n$

Where, $n\geq 1$ and n is a positive whole number

Thus algebraic expression can be used to find the nth term of the sequence is found

6 0

3 years ago