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slamgirl [31]
3 years ago
13

Factor Completely. 3x^2-75

Mathematics
2 answers:
Setler79 [48]3 years ago
6 0

Answer:

3(x - 5) x (x + 5)

            ^

  multiplication sign btw

Step-by-step explanation:

3(x^2 - 25)

3(x - 5) x (x+5)

hope it helped

brainliest is appreciated

alexandr402 [8]3 years ago
5 0

Answer:

3(x+5)(x−5)

Step-by-step explanation:

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Find the value of the power <br> 3⁴​
Jet001 [13]

Step-by-step explanation:

3⁴ can also be written as

3 × 3 × 3 × 3 = 81

hope this answer helps you dear!

7 0
2 years ago
Read 2 more answers
Help with this plaese
WARRIOR [948]
So the rise over run is 5/-4
To start off take 10 degrees/96 cups
If you look at the pattern the degrees go up by 5 and the cups go down by 4

So I believe the answer should be
25 degrees = 84 cups
7 0
2 years ago
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The sale amount is $98.75. What is 5% sales tax? What is 8% sales tax? and what is 6.5% sales tax?
amid [387]
To find the % sales tax, you simply need to find that percentage of the price.
5% of $98.75 is $4.94
98.75x0.05=4.94
8% of $98.75 is $7.90
98.75x0.08=7.90
6.5% of $98.75 is $6.42
98.75x0.065=6.42
Therefore, of the sale amount $98.75,
5% sales tax is $4.94
8% sales tax is $7.90
6.5% sales tax is $6.42
If you want to find the total price, add the sales tax to the sale price.
8 0
2 years ago
Read 2 more answers
A fabric manufacturer believes that the proportion of orders for raw material arriving late isp= 0.6. If a random sample of 10 o
ryzh [129]

Answer:

a) the probability of committing a type I error if the true proportion is p = 0.6 is 0.0548

b)

- the probability of committing a type II error for the alternative hypotheses p = 0.3 is 0.3504

- the probability of committing a type II error for the alternative hypotheses p = 0.4 is 0.6177

- the probability of committing a type II error for the alternative hypotheses p = 0.5 is 0.8281

Step-by-step explanation:

Given the data in the question;

proportion p = 0.6

sample size n = 10

binomial distribution

let x rep number of orders for raw materials arriving late in the sample.

(a) probability of committing a type I error if the true proportion is  p = 0.6;

∝ = P( type I error )

= P( reject null hypothesis when p = 0.6 )

= ³∑_{x=0 b( x, n, p )

= ³∑_{x=0 b( x, 10, 0.6 )

= ³∑_{x=0 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.6)^x( 1 - 0.6 )^{10-x

∝ = 0.0548

Therefore, the probability of committing a type I error if the true proportion is p = 0.6 is 0.0548

b)

the probability of committing a type II error for the alternative hypotheses p = 0.3

β = P( type II error )

= P( accept the null hypothesis when p = 0.3 )

= ¹⁰∑_{x=4 b( x, n, p )

= ¹⁰∑_{x=4 b( x, 10, 0.3 )

= ¹⁰∑_{x=4 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.3)^x( 1 - 0.3 )^{10-x

= 1 - ³∑_{x=0 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.3)^x( 1 - 0.3 )^{10-x

= 1 - 0.6496

= 0.3504

Therefore, the probability of committing a type II error for the alternative hypotheses p = 0.3 is 0.3504

the probability of committing a type II error for the alternative hypotheses p = 0.4

β = P( type II error )

= P( accept the null hypothesis when p = 0.4 )

= ¹⁰∑_{x=4 b( x, n, p )

= ¹⁰∑_{x=4 b( x, 10, 0.4 )

= ¹⁰∑_{x=4 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.4)^x( 1 - 0.4 )^{10-x

= 1 - ³∑_{x=0 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.4)^x( 1 - 0.4 )^{10-x

= 1 - 0.3823

= 0.6177

Therefore, the probability of committing a type II error for the alternative hypotheses p = 0.4 is 0.6177

the probability of committing a type II error for the alternative hypotheses p = 0.5

β = P( type II error )

= P( accept the null hypothesis when p = 0.5 )

= ¹⁰∑_{x=4 b( x, n, p )

= ¹⁰∑_{x=4 b( x, 10, 0.5 )

= ¹⁰∑_{x=4 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.5)^x( 1 - 0.5 )^{10-x

= 1 - ³∑_{x=0 \left[\begin{array}{ccc}10\\x\\\end{array}\right](0.5)^x( 1 - 0.5 )^{10-x

= 1 - 0.1719

= 0.8281

Therefore, the probability of committing a type II error for the alternative hypotheses p = 0.5 is 0.8281

3 0
2 years ago
Trevor has already baked 11 pies, and he can bake 1 pie with each additional cup of sugar he buys.with 34 additional cup of suga
murzikaleks [220]

Answer:

45

Step-by-step explanation:

he already baked 11 pies and it says that he can bake 1 pie with an additional cup of sugar so 1 cup of suger equals 1 pie wich means that he can make 34 pies with the additionnal cups of sugar and he already baked 11 and 11 + 34 = 45.

8 0
3 years ago
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