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3 years ago

How to do it solve for y

Mathematics

2 answers:

Goryan [66]3 years ago

6 0

Answer:

y=1

Step-by-step explanation:

1. Isolate the variable

1+2y=3

-1 -1

2y=2

__ _

2 2

y=1

geniusboy [140]3 years ago

6 0

Answer:

y = 1

Step-by-step explanation:

1 times 2 equals 2

so 2 + 1 equals 3

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A random sample of 38 wheel chair users were asked whether they preferred cushion type A or B, and 28 of them preferred type A w

-BARSIC- [3]

Answer:

The statement that cushion A is twice as popular as cushion B cannot be verified

Step-by-step explanation:

From the question we are told that:

Sample size n=38

Type a size A $X_a=28$

Type a size B $X_b=10$

Generally the probability of choosing cushion A P(a) is mathematically given by

$P(a)=\frac{28}{38}$

$P(a)=0.73$

Generally the equation for A to be twice as popular as B is mathematically given by

$P(b)+2P(b)=3P$

Therefore Hypothesis

$Null H_0: p \leq \frac{2P}{3P} \\Altenative H_A:p>\frac{2P}{3P}$

Generally the equation normal approx of p value is mathematically given by

$z=\frac{x-np_0-0.5}{\sqrt{np_0(1-p_0)} }$

$z=\frac{28-(38*2/3)_0-0.5}{\sqrt{38*2/3*1/3} }$

$z=0.75$

Therefore from distribution table

$Pvalue=1-\theta (0.75)$

$Pvalue=0.227$

Therefore there is no sufficient evidence to disagree with the Null hypothesis $H_0$

Therefore the statement that cushion A is twice as popular as cushion B cannot be verified

7 0

3 years ago

What is the factored form of 9X^2-64

Maksim231197 [3]

This should be recognized as the difference of perfect squares which is of the form:

(a^2-b^2) and the difference of squares always factors to:

(a-b)(a+b) in this case:

(3x-8)(3x+8)

8 0

3 years ago

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Stefan is conducting an experiment to find the level of pollution in the air. He found that there are about 3 billion dust parti

anygoal [31]

140 grams hope it helps out

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3 years ago

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2)<br> Solve the quadratic equation by taking square roots.<br> 4x^2 = 24

Veronika [31]

Answer:

4x²=24

or,x²=24÷4

or,x=root 6

8 0

3 years ago

Determine whether this system of equations has one solution, no solution, or infinitely many solutions.

prohojiy [21]

Answer:

The only solution I see is for x=0

Step-by-step explanation:

y=8x+2

y=-8x+2

y=y so substitute:

8X+2=-8X+2

Subtract 2 from each side

8X=-8X

divide each side by 8

x=-x

The only solution I see is for x=0

4 0

3 years ago