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dimulka [17.4K]
3 years ago
12

Which values for x and y make the statement (x + 3)(y - 11) = 0 true?

Mathematics
2 answers:
Westkost [7]3 years ago
6 0
A,C,and D are all correct

Semmy [17]3 years ago
4 0
Kind of a trick question because only one of the factors will have to be zero for the whole expression to be zero.

So everything with x=-3 OR y=11 in it will work.

That's A, C and D
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Mm
Novay_Z [31]

Answer:

x + 2(2x-4) = 10

Step-by-step explanation:

Here in this question, we want to select which is the correct answer if we substitute for the value of y in the second equation, using the first.

In the first, we have;

y = 2x -4

Now, let’s input this value of y into the second equation.

By direct substitution, what we have is the following;

x + 2y = 10

—-> x + 2(2x -4) = 10

8 0
3 years ago
What is the critical value at the 0.05 level of significance for a goodness-of-fit test if there are six categories?
9966 [12]

Answer:

The goodness of fitness test χ²with significance of level ∝= 0.05 and 5 degrees of freedom is 11.07  (One tailed test )

Step-by-step explanation:

For n=6  the degrees of freedom will be n-1 = 5 .

The goodness of fitness test χ²with significance of level ∝= 0.05 and 5 degrees of freedom is 11.07  (One tailed test )

The critical region depends on ∝ and the alternative hypothesis

a) When Ha is σ²≠σ² the critical region is

χ²  < χ²(1-∝/2)(n-1) and  χ² > χ²(1-∝/2)(n-1)   Two tailed test

( χ²  < 0.83) and ( χ²  > 0.83)

b) When Ha is σ²> σ² the critical region falls in the right tail and its value is

 χ² > χ²(∝)(n-1)   One tailed test  {11.07  (One tailed test )}

c) When Ha is σ² <σ² the critical region will be entirely in the left tail with critical value  

χ²(1-∝)(n-1)  One tailed test  (1.145)

6 0
3 years ago
Read 2 more answers
5n + 34 = -2(1 - 7n) what is the solution to this question
Temka [501]
5n + 34 = -2(1 - 7n)

5n + 34 = -2 + 14n
5n = -36 + 14n
-9n = -36
9n = 36
n = 4
7 0
3 years ago
Read 2 more answers
If quarterly payments are made for 15 years, find the value for n in the following present value ordinary annuity formula.
miss Akunina [59]

Answer:

  b.  (60)

Step-by-step explanation:

n represents the number of payments. If there are 4 per year for 15 years, that's a total of 4×15 = 60 payments.

  n = 60

7 0
2 years ago
How can you solve for 42 = 6×?
mezya [45]
Do you mean, what times 6 equals 42 ?
if that then it is 7
6x7=42
7 0
3 years ago
Read 2 more answers
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