2 years ago

Equivalent expression of 7 square root 5

Mathematics

1 answer:

Vika [28.1K]2 years ago

4 0

Answer:19

Step-by-step explanation:

Subtract then add

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casey has n nickels.meghan has 4 times as many nickels as casey has.write an expression for the total number of nickels casey an

Amanda [17]

Answer:

Step-by-step explanation:

Summarizing what we know:

Casey has n nickels, and Meghan 4 times as many: 4n

Then the total number of nickets these two people have is n + 4n, or 5n.

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3 years ago

Solve the following systems of 3-variable linear equations.

Dima020 [189]

Answer:

Step-by-step explanation:

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The vertices of triangle rst are r(–1,–2), s(2,–1), and t(4,2). If δjkl ∼ δrst and the length of kl is units , what is the lengt

NemiM [27]

Answer:

3.16 units

Step-by-step explanation:

It has been given that the triangles JKL and the triangle RST are congruent.

That implies that, the length of the side JK, KL, and JL is equivalent to the length of the sides RS, ST, and RT respectively.

Now, to find the length of JK we need to find the length of the side RS. The coordinates of the points R and S are $(-1,-2)$ and $(2,-1)$ .

The length of the side RS is equal to the distance between point R and S.

RS $=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$= \sqrt{(2-(-1))^2+(-1-(-(-2))^2}$

$=\sqrt{3^2+(-1+2)^2}$

$=\sqrt{9+1}=\sqrt{10}=3.16$

Now that we have the length of the side RS, and the triangles JKL and RST are congruent therefore, the length of the side JK is 3.16 units.

7 0

2 years ago

Read 2 more answers

-21(+5-8)7+-90:-6= yesssssssssssssssssssssssssssssssssssssssssssssssssss

hodyreva [135]

Answer:

yeeeeeeeees

Step-by-step explanation:

yeeeeeeeeeeees

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2 years ago

The density of ethanol is around 0.8g/mL. What is the mass of 20mL of ethanol?

Harman [31]

Answer: 0.7893g//mL

If 20 mL of ethanol (density =0.7893g//mL) is mixed with 40mL water (density = 0.9971g//mL)

Step-by-step explanation:

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3 years ago