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ValentinkaMS [17]
2 years ago
5

Write your answer in simple solution (4x^3+2x+6)+(2x^3-x^2+2)

Mathematics
1 answer:
Ket [755]2 years ago
4 0
The answer in simple solution is 6x^3-x^2+2x+8
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The owner of a small pet supply store wants to open a second store in another city, but he only wants to do so if more than one-
Andrei [34K]

Answer:

The answer is "The null hypothesis was rejected".

Step-by-step explanation:

Following are the right-tailed test:

Calculating the null and alternative hypothesis:

H_0 : p = 0.3333\\\\H_a : p > 0.3333\\\\n = 150\\\\x = 64\\\\\hat{p} = \frac{x}{n} = \frac{64}{150} = 0.4267\\\\P_0 = 0.3333\\\\1 - P_0 = 1 - 0.3333 = 0.6667\\\\

z = \frac{\hat{p} - P_0}{[\sqrt{\frac{P_0 \times (1 - P_0 )}{n}}]}

   = \frac{0.4267 - 0.3333}{[\sqrt{\frac{(0.3333 \times 0.6667)}{150}}]}\\\\= 2.426

Calculating the right-tailed test:

P(z > 2.426) = 1 - P(z < 2.426) = 1 - 0.9924 = 0.0076\\\\P-value = 0.0076\\\\\alpha = 0.05\\\\P-value < \alpha

Therefore, we reject the null hypothesis.

This example shows that more than a third of the families own pets in this town.

5 0
2 years ago
Simplify 3^2 • 3^5. (4 points)<br><br><br> 3^7<br><br> 3^10<br><br> 9^7<br><br> 9^10
Hatshy [7]

Answer:

3^7

Step-by-step explanation:

Calculate

3^2+5

Solution

3^7

5 0
3 years ago
Read 2 more answers
Need to use the properties of exponents to solve this equation. I'm a bit confused on how to do this problem so a step by step d
garik1379 [7]

Answer:

Step-by-step explanation:

The given expression is

(4×10^8)(4×10^-7)/(4×10^8)

Considering the property of exponents which is expressed as

y^a × y^b = y^(a + b)

Applying the above rule to the denominator of the given expression, it becomes

4×10^8 × 4×10^-7 = 16 × 10^(8 + - 7)

= 16 × 10^(8 - 7)

= 16 × 10 = 160

The expression becomes

16 × 10/(4×10^8)

We would apply the property of exponents which is expressed as

y^a ÷ y^b = y^(a - b)

It becomes

16/4 × 10^(1 - 8)

= 4 × 10^-7

8 0
3 years ago
I will give brainliest.
mixer [17]
When you divide fractions multiply the first fraction by the reciprocal of the second

-5/7 divide by 1/5 turns into
-5/7 multiply by 5/1
Answer is -25/7
6 0
3 years ago
Read 2 more answers
Describe what is meant by the operation of division using the terms dividend , divisor , and quotient
Delvig [45]

Answer:

Dividend: Number on top

Divisor: Number on bottom

Quotient: Answer

Dividend ÷ Divisor = Quotient

7 0
2 years ago
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