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Kruka [31]
3 years ago
14

20 POINTS!! Which ordered pair is the solution to the system of equations?

Mathematics
1 answer:
marta [7]3 years ago
8 0
Hello! I would love to help!

The answer is -10,-1

Basically, you have to fill -10 in for x and -1 in for y in each equation. If the equations are true, that is the right answer!


Hope this helped! Comment if you have questions!







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How many solutions exist for the given equation?
grin007 [14]

Answer:

One

Step-by-step explanation:

(x + 12) = 4x - 1

x + 12 = 4x - 1

12 = 3x - 1

13 = 3x

x = 13/3 = 4.3333333...

Since x only has one value, only one solution exists for the equation.

3 0
2 years ago
4+2(x-2)=2(x-1)+2<br> which one<br> A. Infinitesolutions<br> B.x=0<br> C.x=3<br> D.x=-2<br> E.x=-3
fredd [130]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A researcher obtains t = 2.35 for a repeated-measures study using a sample of n = 8 participants. Based on this t value, what is
ZanzabumX [31]

Answer:

p_v =2*P(t_{7}>2.35)=2*0.0255=0.051  

If we compare the p value and using the significance level given \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% or 1% of significance we fail to reject the null hypothesis.

Step-by-step explanation:

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level is not provided but we can assume it as \alpha=0.05. First we need to calculate the degrees of freedom like this:

df=n-1=8-1=7

The next step would be calculate the p value for this test.  Since is a bilateral test or two tailed test, the p value would be:  

p_v =2*P(t_{7}>2.35)=2*0.0255=0.051  

If we compare the p value and using the significance level given \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% or 1% of significance we fail to reject the null hypothesis.  

5 0
3 years ago
Solve using the Zero Product Property. What is one solution for x? (x – 5) (x + 1) =0
andriy [413]
The answer would be 2.) 5

(5-5) = 0 (5+1) = 6

0x6= 0
4 0
3 years ago
LCM of two numbers is 1320 their HCF is 12 if one of the numbers is 132 find the other
guapka [62]

Answer:

<u>brainliest plzzzzzzzz</u>

120

Step-by-step explanation:

LCM=1320

(GDC) HCF=12

Another no.=132

let second no. be =A

According to question

First no.×Second no.=HCF×LCM

132×A=12×1320

132×A=15840

A=15840/132

A=120

Other no. is 120

5 0
2 years ago
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