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jonny [76]
3 years ago
8

Choose the option that correctly completes the statement.

Mathematics
2 answers:
Advocard [28]3 years ago
8 0
At least one acute angle
lakkis [162]3 years ago
8 0
At least is the answer 
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Can someone please let me know what the answer is?
Brilliant_brown [7]

Answer:

D

Step-by-step explanation:

I'm not 100% sure but since when you remove the square roots on a and b, you have to add it to X

3 0
2 years ago
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Which of the following is a solution of x2 + 2x + 4?
kifflom [539]

Answer:

−1 + i times the square root of 3

is the answer.

Step-by-step explanation:

Given is a quadratic equation in x

x^2+2x+4\\= x^2+2x+1+3\\=(x+1)^2+3

using completion of squares method

Equate to 0

(x+1)^2+3 =0\\(x+1)^2 = -3\\

Take square root

(x+1) = \sqrt{-3} =±i\sqrt{3}

Subtract one from both sides

x = [/tex]-1±i\sqrt{3}[/tex]

The last option namely

−1 + i times the square root of 3 only matches with our answre

Hence last option is right.

4 0
2 years ago
Describe how to write the null and alternative hypotheses based on a claim. Provide at least one example to clarify your explana
Umnica [9.8K]

Answer:

Step-by-step explanation:

The null and alternative hypothesis are usually used in hypothesis testing to present the claim being tested as give in terms of the mean or proportion :

Given that the mean score of high school students is 10 ; using a sample of 50 students, a mean of 8 was obtained ; we could want to test the claim that the mean score is less than 10.

Here; population mean, μ = 10 ; the claim is now that, μ < 10 based on what was observed about the sample.

H0 : μ = 10

H0 : μ < 10

If we wanted to test If the mean was greater than 10 ; then the sign is reversed

H0 : μ = 10

H0 : μ > 10

If we wanted to test If the score is just different from the mean score stated ; (it may be less than or greater than)

H0 : μ = 10

H0 : μ ≠ 10

7 0
3 years ago
Michael made 9/12 of his free throws at practice. What is 9/12 in simplest form?
riadik2000 [5.3K]
It would be 0.75 as a decimal or 3/4
4 0
3 years ago
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What is the value of the expression below when y = 5?
muminat

Answer:

56

Step-by-step explanation:

10y+6

10(5)+6

10*5=50

50+6=56

3 0
2 years ago
Read 2 more answers
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