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3 years ago

I need help i need to simplify 7(2y+1)+3y

Mathematics

2 answers:

Artist 52 [7]3 years ago

5 0

Simplified form : 17y + 7

Ugo [173]3 years ago

4 0

I think it would be 5, or 1.5

Wish I could be more help, Good Luck!

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The measure of an angle is 135 degrees. What is the measure of its supplementary angle ?

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Remember that if two angles are supplementary, then the sum of their measures is 180°. So if the measure of an angle is 135 degrees. What is the measure of its supplement?

If the measure of an angle is 135°,

then the measure of its supplement is 45°.

We can find the measure of its supplement by taking 180 minus the measure of the original angle which in this case is 180 - 135 or 45°.

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3 years ago

Given: See the diagram.

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Answer:

A. ASA criterion for congruent triangles.

Step-by-step explanation:

Given DG is perpendicular bisector of CA and DH is perpendicular bisector of AB.

In triangle DGC and DGA

DG=DG( reflexive property of equality)

$\angle DGA=\angle DGC=90^{\circ}$ ( given )

$\angle ADG=\angle CDG$ ( by definition of perpendicular bisector)

$\therefore \triangle AGD\cong \triangle CGD$ ( ASA postulate)

Similarly, In triangle ADH and triangle BDH

DH=DH ( reflexive property of equality)

$\angle DHA=\angle DHB=90^{\circ}$ (given)

$\angle ADH=\angle BDH$ ( By definition of perpendicular bisector)

$\therefore \triangle ADH\cong \triangle BDH$ ( ASA postulate)

1.Statement: $\overline{DG}\perp \overline{AC}$

Reason: Given.

2. Statemnet: AG=GC

Reason: Given

3. Statement: $\overline{DG}$ is perpendicular bisector of $\overline{AC}$

Reason: from step 1 and step 2.

4.Statement: DA=DC

Reason: ASA criterion for congruent triangles.

5 .Statement: $\overline{DH} \perp \overline{AB}$

Reason: Given

6. Statement:AH=HB

Reason:Given

7.Statement: $\overline{DH}$ si perpendicular bisector $\overline{AB}$

Reason: By definition of perpendicular bisector.

8.Statement: DA=DB

Reason : ASA criterion for congruent triangles.

9.Statement: DC=DB

Reason: Transitive property of equality.

Hence proved.

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4 years ago

Read 2 more answers

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harina [27]

Answer:

Up 5, 2 to the right (5/2)

Step-by-step explanation:

I just counted the units of the Cartesian Plane

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