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3 years ago

Round 529 to 2 significant figures

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

7 0

53 is the answer...........

Gnesinka [82]3 years ago

3 0

53 I hope I helped :)

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I need help solving these please help...

Ber [7]

5) y = 2x + 7
6) y = $\frac{5}{4}$ x - 5.5

5 0

3 years ago

Halph plz m8 Which bar diagram represents the equation 5x + 7.5 = 15?

nordsb [41]

Answer:

Third bar graph.

Step-by-step explanation:

Given : 5x + 7.5 = 15.

To find : Which bar diagram represents the equation.

Solution : We have given 5x + 7.5 = 15

In the equation we can see sum of 5x and 7.5 is 15 .

By the bar graph combination box of 5x and box of 7.5 is equal to the box of 15.

Then Third bar graph represent the equation .

Two pink boxes of 5x and 7.5 and one blue box of 15.

Therefore, Third bar graph.

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4 years ago

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One of the tables shows a proportional relationship. Graph the line representing the proportional relationship from this table.

sergey [27]

Answer: have you found the answer if so please tell me

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3 years ago

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Name the corresponding part if ∆RST ≅ ∆WXY ∠R= ∠X ∠W ∠Y

Furkat [3]

The question is asking choose among the following choices that states the angle that is congruent to angle R if triangle RST is congruent to WXY, base on that, the possible answer would angle R is equals to angle W. I hope you are satisfied with my answer and feel free to ask for more

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3 years ago

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Chose parameters h and k such that the system has a) a unique solution, b) many solutions, and c) no solution. 31+3x2= 4 2x1+kx2

Snezhnost [94]

Answer

a) k=7, h=9, the unique solution of the system is $(x_1,x_2)=(1,1)$

b) If k=6 and h=8 the system has infinite solutions.

c)If k=6 and h=9 the system has no solutions.

Step-by-step explanation:

I am assuming that the system is x1+3x2=4; 2x1+kx2=h

The augmented matrix of the system is $\left[\begin{array}{ccc}1&3&4\\2&k&h\end{array}\right]$ . If two times the row 1 is subtracted to row 2 we get the following matrix $\left[\begin{array}{ccc}1&3&4\\0&k-6&h-8\end{array}\right]$ .

Then

a) If k=7 and h=9, the unique solution of the system is $x_2=\frac{9-8}{7-6}=\frac{1}{1}=1$ and solviong for $x_1$ ,

$x_1+3x_2=4\\\\x_1=4-3(1)=1$

Then the solution is $(x_1,x_2)=(1,1)$

b) If k=6 and h=8 the system has infinite solutions because the echelon form of the matrix has a free variable.

c)If k=6 and h=9 the system has no solutions because the last equation of the system of the echelon form of the matrix is $0x_2=1$

8 0

4 years ago