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2 years ago

I'm super confused. Can anybody answer while writing the steps?

Mathematics

1 answer:

kvv77 [185]2 years ago

5 0

The formula for desnity is d= m/v (mass over volume), so

1) 0.18 = 240/v Plug in the numbers you have (0.18 being the density and 240 being the volume)

2) 0.18(240) = 240/v(240) multiply 240 on each side to get rid of the 240 on the right side of the equation.

3) 43.2 = m

So, the formula would be d=m/v and m= 43.2

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N(x)=2x+7;(x)=17, what is the value of x so that the function has a given value

miskamm [114]

2(17)+7

34+7

N(17)=41

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2 years ago

A + b·c = a + c·b is an example of the associative property.

muminat

Answer:

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Step-by-step explanation:

8 0

2 years ago

Can I get some help plz?

Anika [276]

Answer:

X=20 degree

Step-by-step explanation:

∆A+∆D+∆O=180

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6 0

2 years ago

Read 2 more answers

20 points!! Solve this system of lineal equations.separate the x- and y- values with a comma

Zielflug [23.3K]

Solve the following system:{12 x = 54 - 6 y | (equation 1)-17 x = -6 y - 62 | (equation 2)
Express the system in standard form:{12 x + 6 y = 54 | (equation 1)-(17 x) + 6 y = -62 | (equation 2)
Swap equation 1 with equation 2:{-(17 x) + 6 y = -62 | (equation 1)12 x + 6 y = 54 | (equation 2)
Add 12/17 × (equation 1) to equation 2:{-(17 x) + 6 y = -62 | (equation 1)0 x+(174 y)/17 = 174/17 | (equation 2)
Multiply equation 2 by 17/174:{-(17 x) + 6 y = -62 | (equation 1)0 x+y = 1 | (equation 2)
Subtract 6 × (equation 2) from equation 1:{-(17 x)+0 y = -68 | (equation 1)0 x+y = 1 | (equation 2)
Divide equation 1 by -17:{x+0 y = 4 | (equation 1)0 x+y = 1 | (equation 2)
Collect results:Answer: {x = 4 {y = 1

Please note the { are supposed to span over both equations but it interfaces doesn't allow it. Please see attachment for clarification.

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2 years ago

The pair of triangles that are congruent by ASA criterion is

stealth61 [152]

Answer:

The pair of triangles that are congruent by the ASA criterion isΔ ABC and Δ XYZ.

The pair of triangles that are congruent by the SAS criterion is Δ BAC and ΔRQP.

Step-by-step explanation:

Two triangles are congruent by ASA property if any two angles and their included side are equal in both triangles .In triangles Δ ABC and Δ XYZ the equal side 5 is between the two equal angles. So these triangles are congruent by ASA criterion.

Two triangles are congruent by SAS if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle .In triangles Δ BAC and ΔRQP. the included angles A and Q are equal and hence the triangles are congruent by SAS criterion.

4 0

2 years ago