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Nina [5.8K]
3 years ago
12

-3y+5y-4=-7+4y help!

Mathematics
2 answers:
slava [35]3 years ago
8 0
Dont know if youre finding y but finding y= 3/2
sesenic [268]3 years ago
6 0
Do you need this solved in a specific way? Solving for y you get 3/2
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A recent poll asked people whether they supported passing a constitutional amendment to ban burning of the national flag using a
Natalka [10]

Answer:

Step-by-step explanation:

Hello!

You are asked to test the difference of the population means of the opinion of  men and women over a constitutional amendment to ban burning the national flag.

Population 1 (women)

Sample n₁= 400

X[bar]₁= 80.6

Population 2 (men)

n₂= 586

X[bar]₂= 77.6

σ₁= σ₂ = σ =3.5

To test whether there is a difference between the opinion of people about the amendment regarding their gender the hypothesis is:

H₀: μ₁ - μ₂ = 0

H₁: μ₁ - μ₂ ≠ 0

α: 0.05

The statistic to use is a pooled Z:

Z=<u> (X[bar]₁ - X[bar]₂) - (μ₁ - μ₂)  </u> ~N (0;1)

                σ*√(1/n₁ + 1/n₂)

The critical region for this hypothesis is two tailed:

Z_{\alpha /2} = Z_{0.025} = -1.96

Z_{1-\alpha /2} = Z_{0.975} = 1.96

Z=<u> (X[bar]₁ - X[bar]₂) - (μ₁ - μ₂)  </u> = <u>        (80.6-77.6) - 0       </u> = 13.215

                σ*√(1/n₁ + 1/n₂)                 3.5√(1/400 + 1/586)

Since the calculated Z-value is greater than the right critical value -81.96) the decision is to reject the null hypothesis. There is significant evidence to conclude that there is no difference between the population means of the opinion about the constitutional amendment to ban the burning of the national flag of women and men.

I hope it helps!

8 0
3 years ago
The diagram shows two straight lines<br>work out the value of x<br><br>​
Virty [35]

Answer:

136

Step-by-step explanation:136 The angles are vertical angles and vertical angles are equal

8 0
3 years ago
Read 2 more answers
What is the value of x?<br> Enter your answer in the box.
mart [117]
Angles x and 64 deg are "complementary," so x+64=90, and x= 26 deg.
8 0
4 years ago
A golf cart priced at $5,600 was on slae for 20% off.The sales tax rate is 6%.What is the sale price of the golf cart,including
Norma-Jean [14]

Answer:

$4748.80

Step-by-step explanation:

First, find the cost with 20% off, by multiplying the price by 0.8

5600(0.8)

= 4480

Find the cost with tax, by multiplying this by 1.06

4480(1.06)

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So, the sale price, including tax, is $4748.80

7 0
3 years ago
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What is a fraction that is less then 1/8
Marysya12 [62]

Answer:

1/9 1/10 1/11 1/12 1/13 and so on

Step-by-step explanation:

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4 years ago
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