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Alchen [17]
3 years ago
13

Determine whether the conjecture is true or false. If false, give a counterexample.

Mathematics
2 answers:
S_A_V [24]3 years ago
5 0
I think it is False, x=2

Contact [7]3 years ago
3 0

We start with the given equation

x^{2} + 4 = 8

Now, we solve the equation, we subtract 4 on either side,

x^{2} +4 -4 = 8-4

x^{2}  = 4

x = \sqrt{4}

\sqrt{4 }  = +2 and -2

x = +2 or -2

So, x= +2 and x =-2

Since the given conjuncture says X=-2, we can conclude that the given conjuncture is TRUE

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Add the two expressions.<br><br> m + 6 and 4m + 2<br><br> Enter your answer in the box
ANEK [815]
Hey so we would collect like terms: 5m+8

If this helped, please consider brainliest! Have an awesome day!
4 0
3 years ago
Read 2 more answers
Solve this problem please
Anestetic [448]
8*6=48, 4*8=32, 5*8= 40, 5*4/2= 10*2=20. So, 48 + 32 + 40 + 20= 140 so the answer is 140 cm squared! Hope this helps! Can I get brainliest pls
7 0
3 years ago
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plz help Pru, Piper, and Phoebe share spices in the ratio 5:3:4. If Pru has 24 more spices than Piper, how many spices does Phoe
disa [49]

Answer:


Step-by-step explanation:

Pru, Piper, Phoebe ratio 5:3:4vadded = 12

What this means is Pru has 5/12 of the total amount, Piper has 3/12 of the total amount, and Phoebe has 4/12 of the total amount of spices.


pru = piper + 24

5/12x = 3/12x + 24

5/12x - 3/12x = 24

2/12x = 24

x = 24 / (1/6)

x = 24 * 6

x = 144 spices in total


Pru has : 5/12(144) = 720/12 = 60 spices

Piper has : 3/12(144) = 432/12 = 36 spices

Phoebe has : 4/12(144) = 576/12 = 48 spices


I hope this can help.

6 0
3 years ago
Read 2 more answers
Yianni typed a 36-word paragraph in 2/3 of a minute<br> what is her typing speed in words per minute
elena-s [515]

I think it would be 54 words per minute

36÷2=18 which is 1/3 of a minute so we multiply 18 by 3 to get how many words in one minute, 18×3=54

4 0
3 years ago
4. Tyson and his friends go ice skating. Tyson must pay an initial fee of $18.30 plus $4.80 per hour.
hjlf

Answer:

equation: c = 4.80h + 18.30, cost for four hours: (4, 37.5)

Step-by-step explanation:

the equation is c = 4.80h + 18.30 because 18.30, the initial cost, is the y-intercept and because each hour costs $4.80. the cost for four hours would be (4, 37.5) because it costs $37.5 to skate for four hours.

7 0
2 years ago
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