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4 years ago

What is the missing step in the proof?

2 answers:

3 0

The correct answer to this is the option:
C. Statement: ∠GJI≅∠JLK
Reason: For parallel lines cut by a transversal, corresponding angles are congruent.

Since the two angles are corresponding angles and the two parallel lines are cut by a transversal.

nadya68 [22]4 years ago

3 0

The correct answer is:

D) Statement: ∠GJI and ∠IJL are supplementary; Reason: Linear Pair Theorem

Explanation:

Step 3 states "∠IKL≅∠GJI Transitive Property of Equality".
Step 5 states "∠IKL and ∠IJL are supplementary. Transitive Property of Equality".

The inferred piece of information here is that ∠GJI and ∠IJL are supplementary. Since we do not have anything relating ∠IKL and ∠IJL, we must have something relating the two; relating ∠GJI and ∠IJL will work, since we know that ∠IKL≅∠GJI.

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Calculate the rf value for the reactant b spot. estimate the ruler to the nearest tenth, report the answer using two significant

Aliun [14]

1. Measure the distance the solvent front traveled from the baseline (m1). 2. Measure the distance the reactant b spot traveled (the center of the spot) (m2). 3. To determine the rf, divide (m2/m1). 4. Significant figures- use 2 so the answer should be written to the hundredths place as the spot will not travel farther than the solvent front.

8 0

3 years ago

A market buys mixed nuts at $15 per pound. They want to make a 20% profit. What would you make for 1 pound of nuts ? ( show work

Tasya [4]

I'm pretty sure it would be $19. You can check my work to make sure.

First, I multiplied 15 by 20%, which in decimal form would be .20 or .2. I got the answer 4.00, which could also be simplified to 4. Afterwards I added 4 to 15 to add the profit the market gets when they have to pay back the $15 for pound. 4+15=19, so $19 for 20%.

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3 years ago

Find x,y,z : 4x^2+2y^2+2z^2-4xy-4xz+2yz-2y+6z+10=0

xenn [34]

I hope this helps.

Answer:-

∴x−3y−4z=0

Explanation:

First we rearrange the equation of the surface into the form f(x,y,z)=0

x2+2z2=y2

∴x2−y2+2z2=0

And so we have our function:

f(x,y,z)=x2−y2+2z2

In order to find the normal at any particular point in vector space we use the Del, or gradient operator:

∇f(x,y,z)=∂f∂xˆi+∂f∂yˆj+∂f∂zˆk

remember when partially differentiating that we differentiate wrt the variable in question whilst treating the other variables as constant. And so:

∇f=(∂∂x(x2−y2+2z2))ˆi+

(∂∂y(x2−y2+2z2))ˆj+

(∂∂z(x2−y2+2z2))ˆk

=2xˆi−2yˆj+4zˆk

So for the particular point (1,3,−2) the normal vector to the surface is given by:

∇f(1,3,−2)=2ˆi−6ˆj−8ˆk

So the tangent plane to the surface x2+2z2=y2 has this normal vector and it also passes though the point (1,3,−2). It will therefore have a vector equation of the form:

→r⋅→n=→a⋅→n

Where →r=⎛⎜⎝xyz⎞⎟⎠; →n=⎛⎜⎝2−6−8⎞⎟⎠, is the normal vector and a is any point in the plane

Hence, the tangent plane equation is:

⎛⎜⎝xyz⎞⎟⎠⋅⎛⎜⎝2−6−8⎞⎟⎠=⎛⎜⎝13−2⎞⎟⎠⋅⎛⎜⎝2−6−8⎞⎟⎠

∴(x)(2)+(y)(−6)+(z)(−2)=(1)(2)+(3)(−6)+(−2)(−8)

∴2x−6y−8z=2−18+16

∴2x−6y−8z=0

∴x−3y−4z=0

8 0

3 years ago

What is the measure of an angle that turns through 1/5 of a circe

Ede4ka [16]

5 is the answer excuse it converts back to 5

7 0

2 years ago

Any basketball game Brittney scored 34 points. She scored all 34 points onto pointers and three pointers. She made a total of 15

diamong [38]

she made 11 three pointers

4 0

4 years ago

Read 2 more answers