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2 years ago

I need help with 7c please

Mathematics

1 answer:

laiz [17]2 years ago

7 0

Answer:

mx x 2 x1dadqd

Step-by-step explanation:

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Given m || n, find the value of x and y. m(7x+13) n(3y-17) (9x-19)

Varvara68 [4.7K]

Answer:

$9x - 19 = 7x + 13 \\ 2x = 32 \\ x = 16 \\ 3y - 17 + 9x - 19 = 180 \\ 9x + 3y = 180 + 17 + 19 \\ 9x + 3y = 216 \\ 3y = 216 - 144 = 72 \\ y = \frac{72}{3} = 24$

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3 years ago

Tony’s bill at the restaurant was $9.52. If he wants to leave a 20% tip, how much is that?

Ede4ka [16]

Answer: First find what 20 % of the 9.52 bill is which would be $1.90

Add $1.90 to the $9.52 = $11.42 (answer)

Step-by-step explanation:

6 0

3 years ago

Use synthetic division to find the result when x^4-2x^2-4x-48 is divided by x-3

just olya [345]

Answer: it’s x^3+3x^2+7x+17+3/x-3

Sorry ab the handwriting lol

Step-by-step explanation:

7 0

3 years ago

13. Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (u, P, o) for the indica

liraira [26]

Answer:

Null Hypothesis, $H_0$ : P = 4.1%

Alternate Hypothesis, $H_A$ : P > 4.1%

Step-by-step explanation:

We are given that a psychologist claims that more than 4.1% of the population suffers from professional problems due to extreme shyness.

Let p = true percentage of the population that suffers from extreme shyness.

So, Null Hypothesis, $H_0$ : P = 4.1%

Alternate Hypothesis, $H_A$ : P > 4.1%

Here, null hypothesis states that % of the population who suffers from professional problems due to extreme shyness is equal to 4.1%.

On the other hand, alternate hypothesis states that more than 4.1% of the population suffers from professional problems due to extreme shyness.

So, the above hypothesis would be appropriate for conducting the test.

8 0

3 years ago

Select all irrational numbers. √4 √8 √10 √15 √35

larisa [96]

√4 =2
√8= 2√2
√10=√10 as (Decimal: 3.162278)
√15=√15 as (Decimal: 3.872983)
√35=√35 as (Decimal: 5.91608)

6 0

3 years ago