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Elena-2011 [213]
4 years ago
8

Which one has a greater value the square root of 2 or 2.8

Mathematics
2 answers:
Luba_88 [7]4 years ago
8 0

The way in which I interpret your question is:

Which is larger? √2 or 2.8

Note that the approx value of √2 is 1.414.

So, obviously, 2.8 is greater than√2.

tester [92]4 years ago
6 0

square root of 2.8 because its approximate form is 1.6733201 while square root of 2 is 1.4142136

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4x-5y+2z=-3<br> 6x+4y+9z=8<br> 11x-2y-z=7
Nutka1998 [239]

Answer:

thank you i need that

Step-by-step explanation:

4 0
4 years ago
Reina and Sam are multiplying (84)5 (73)9.
Ann [662]
<span>This is a tricky question that Reina and Sam are multiplying (84)5 (73)9
and their work are 
</span><span>(84)5 (73)9 = 84 + 573 + 9 = 89712    Reina's
(84)5 (73)9 = 84⋅573⋅9 = 820727 Sam's
Actually they are doing or multiplying using exponents.

</span>

Reina’s work (8⁴)₅(7³)⁹=8⁴⁺⁵+ 7³⁺⁹= 8⁹ 7¹²<span>
This is incorrect  because she added exponents instead of multiplying exponents

Sams work (8</span>⁴<span>)</span>⁵<span> (7</span>³<span>)</span>⁹<span>=8</span>⁴ˣ⁵<span> 7</span>³ˣ⁹<span>= 8</span>²⁰<span> 7</span>²⁷<span>
<span>This is correct  because Sam multiplied exponents correctly</span></span>

<span><span>Exponents are multiplied not added.</span></span>

4 0
3 years ago
Determine if the function f is an exponential function. If so, identify the base. If not, why not? f(x) = 2^2x
const2013 [10]
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Reason: It is an exponential function because the variable (2) depends on the x.
3 0
4 years ago
What is 2d+4=10+2.5d?<br><br> Solve for d.
NeTakaya
2d+4=10+2.5d
-2d          -2d
4=10+0.5d
-10  -10
-6=0.5d
/0.5  /0.5
-12=d

d=-12
8 0
3 years ago
Read 2 more answers
Van guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that he go
aleksandr82 [10.1K]

Answer:

0.267

Step-by-step explanation:

This can be solved using the binomial probability formula which is:

P(success)=nCk*p^{k}(1-p)^{n-k}

Where

n is total number of trials (here, the total number of questions is 8, so n = 8)

k is the number of attempts we are looking for (here, we want to find probability of 1 question correct, so k = 1)

p is the probability of success (here, success is getting a questions right. Since there are 4 choices and 1 is right, probability of right = 1/4)

<em>Plugging all the info into the formula we get:</em>

<em>P(success)=nCk*p^{k}(1-p)^{n-k}\\P(1QuestionRight)=8C1*(\frac{1}{4})^{1}(1-\frac{1}{4})^{8-1}\\P(1QuestionRight)=\frac{8!}{(8-1)!*1!}(\frac{1}{4})(\frac{3}{4})^7\\P(1QuestionRight)=\frac{8!}{7!*1!}(\frac{1}{4})(\frac{3}{4})^7\\P(1QuestionRight)=8(\frac{1}{4})(\frac{3}{4})^7\\=0.267</em>

<em />

<em>Second choice is right.</em>

5 0
4 years ago
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