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Andrews [41]
2 years ago
11

I need help to find what x is. -4x=16 ?

Mathematics
2 answers:
Fed [463]2 years ago
7 0

Answer:

X= -4

Hope it helps

Have a good day Ahead

Mashutka [201]2 years ago
6 0

Answer:

Step-by-step explanation:

all you have to do is Divide both sides by -4

-4x=16

-4x/-4=-16/-4

Answer

x=-4

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The circle is inscribed in triangle A E C. Which are congruent line segments? Select two options. AB and CB ;EF and ED; ED and C
qaws [65]

Answer:

B and E

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E-F and E-D

C-B and C-D

Step-by-step explanation:

4 0
3 years ago
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While conducting a test of modems being manufactured, it is found that 10 modems were faulty out of a random sample of 367 modem
Kitty [74]

Answer:

We conclude that this is an unusually high number of faulty modems.

Step-by-step explanation:

We are given that while conducting a test of modems being manufactured, it is found that 10 modems were faulty out of a random sample of 367 modems.

The probability of obtaining this many bad modems (or more), under the assumptions of typical manufacturing flaws would be 0.013.

Let p = <em><u>population proportion</u></em>.

So, Null Hypothesis, H_0 : p = 0.013      {means that this is an unusually 0.013 proportion of faulty modems}

Alternate Hypothesis, H_A : p > 0.013      {means that this is an unusually high number of faulty modems}

The test statistics that would be used here <u>One-sample z-test</u> for proportions;

                             T.S. =  \frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }  ~  N(0,1)

where, \hat p = sample proportion faulty modems= \frac{10}{367} = 0.027

           n = sample of modems = 367

So, <u><em>the test statistics</em></u>  =  \frac{0.027-0.013}{\sqrt{\frac{0.013(1-0.013)}{367} } }

                                     =  2.367

The value of z-test statistics is 2.367.

Since, we are not given with the level of significance so we assume it to be 5%. <u>Now at 5% level of significance, the z table gives a critical value of 1.645 for the right-tailed test.</u>

Since our test statistics is more than the critical value of z as 2.367 > 1.645, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u><em>we reject our null hypothesis</em></u>.

Therefore, we conclude that this is an unusually high number of faulty modems.

6 0
3 years ago
If angle YWZ = 17, what is angle WXY?
marusya05 [52]
We know that

step 1
if ∡YWZ=17°
then
∡XWZ=17°*2-----> 34°----> because triangle XWY and triangle YWZ are congruents

step 2
∡WXY=∡WZY-------> because triangle XWY and triangle YWZ are congruents
we know that 
<span>the sum of the internal angles of a triangle is 180 degrees
</span>so
180°=∡XWZ+2*∡WXY---------> ∡WXY=[180-∡XWZ]/2
∡WXY=[180-34°]/2-------> ∡WXY=73°

the answer is
∡WXY=73°

5 0
3 years ago
Christopher is a graphic designer who creates business websites. It takes him 2.4 hours to complete one website page. He finds o
Bingel [31]

Answer:

2.4x = 1.2x + 15

13

Step-by-step explanation:

just did it

7 0
3 years ago
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What is 4x=8 thanks ;)
Reika [66]

Answer:

x=2

Step-by-step explanation:

4x=8

4x/4= 8/4 Divide both side by four to find x

8/4= 2 which equals x

3 0
3 years ago
Read 2 more answers
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