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Luba_88 [7]
2 years ago
6

Which of the following expressions are equivalent to -1/2 x (4x5)

Mathematics
2 answers:
bekas [8.4K]2 years ago
5 0

Answer:

I might be wrong but I think the answer is that A and B are equivalent to -1/2 x (4x5)

Step-by-step explanation:

math

stira [4]2 years ago
4 0
B is the correct answer. The equation -1/2 x (4x5) equals -10 and equation number b when solved is also equal to -10
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Find two positive consecutive integers whose product is 132.
iren2701 [21]
If x is the first integer, then x+1 is the second. x(x+1)=132 or x^2+x-132=0. This factors as (x-11)(x+12)=0. Thus either x=11 or x=-12 
<span>So either 11 and 12 or -12 and -11 will do.</span>
7 0
3 years ago
If testing the claim that sigma subscript 1 superscript 2 baseline not equals sigma subscript 2 superscript 2σ21≠σ22​, what do w
12345 [234]

Answer:

The statistic for this system of hypothesis is given by:

F=\frac{s^2_1}{s^2_2}

If the statistic is equal to 1 then that means s^2_1 = s^2_2 and we don't have enough evidence to conclude that the two population variances and deviations are different.

Step-by-step explanation:

System of hypothesis

We want to test if the variation for a group1 is equal to another one 2, so the system of hypothesis are:

H0: \sigma^2_1 = \sigma^2_2

H1: \sigma^2_1 \neq \sigma^2_2

Calculate the statistic

The statistic for this system of hypothesis is given by:

F=\frac{s^2_1}{s^2_2}

If the statistic is equal to 1 then that means s^2_1 = s^2_2 and we don't have enough evidence to conclude that the two population variances and deviations are different.

6 0
4 years ago
Y=-x+5 <br> x-y=-9 <br> Solve the system?
hram777 [196]

Answer:

x=-2 y=7

Step-by-step explanation:

4 0
3 years ago
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Find the vertex of the given function. f(x) = |x – 5| + 10
Afina-wow [57]
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Basically, 10 is the lowest value for any given set of values for x
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Can someone please heeellppp?!
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Answer:

B

Step-by-step explanation:

the question asks you to order from least to greatest by the exponents. So it would be "B" because negative 6 is less then -5 and -5 is less then 1

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3 years ago
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