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2 years ago

First person to give answer with work will get brainliest!!

Mathematics

1 answer:

Ket [755]2 years ago

4 0

All you will have to do is put this inside of a graph and then see if it goes through the origin.

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Please help!

Reika [66]

Answer:

(1,-5)

Step-by-step explanation:

The given system of inequalities are;

$y\:$

and

$y\:$

The point that is a solution will satisfy the two inequalities.

Checking for (1,-5)

$-5\:$ and $-5\:$

$-5\:$ : True $-5\:$ : True

This point lies in the solution region.

Checking for (1,5)

$5\:$ and $5\:$

$5\:$ : False $5\:$ : False

This point does not lie in the solution region.

Checking for (5,1)

$1\:$ and $1\:$

$1\:$ : False $1\:$ : True

This point does not lie in the solution region.

Checking for (-1,5)

$5\:$ and $5\:$

$5\:$ : True $5\:$ : False

This point does not lie in the solution region.

4 0

3 years ago

Read 2 more answers

PLS HELP ILL GIVE BRAINLY AND 30 PTS

kvv77 [185]

Answer:

C. These lines are perpendicular

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Simplify 10 divided by 7 divided by 8 and put it in a fraction please :)

NeX [460]

Answer:5/28

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final c

Black_prince [1.1K]

Answer:

The test statistic value Z = 4.64 > 1.96 at 0.05 level of significance

Null hypothesis is rejected

Alternative hypothesis is accepted

Test the claim that the proportion of all children in the town who suffer not from asthma is 11%

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 167

Given data In a sample of 167 children selected randomly from one town, it is found that 37 of them suffer from asthma.

Sample proportion

$p^{-} = \frac{x}{n} = \frac{37}{167} = 0.2215$

Given Population proportion 'P' = 11% = 0.11

Step(ii) :-

Null Hypothesis : H₀ : p = 11

Alternative Hypothesis H₁: p≠11

Test statistic

$Z = \frac{p^{-} -P }{\sqrt{\frac{P Q}{n} } }$

$Z = \frac{0.2215 -0.11 }{\sqrt{\frac{0.11 X 0.89}{167} } }$

Z = 4.64

step(iii)

Critical value Z = 1.96

The calculated value Z = 4.64 > 1.96 at 0.05 level of significance

Null hypothesis is rejected

Alternative hypothesis is accepted

Conclusion:-

Test the claim that the proportion of all children in the town who suffer not from asthma is 11%

4 0

3 years ago

Given that f(x) = x² + 3x 28 and g(x) = x + 7, find f(x) + g(x) and

ozzi

Answer:

f(x) + g(x) = x^2 + 4x + 35

Step-by-step explanation:

Add like terms from f(x) and g(x):

f(x) + g(x) = x^2 + 3x + 28 + x + 7, or

f(x) + g(x) = x^2 + 4x + 35

7 0

2 years ago