Which describes a method for solving systems of equations in which you

Mathematics

2 answers:

Jlenok [28]3 years ago

6 0

Answer:

it's not plug in method ik that much

Step-by-step explanation:

apex

zloy xaker [14]3 years ago

4 0

Answer: substitution method

Step-by-step explanation:

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Help Me!

puteri [66]

Answer:

Given:

DC ║ AB
CM = MB as M is midpoint of BC

i) Since DN and BC are transversals, we have:

∠DCM ≅ ∠NBM and
∠CDM ≅ ∠BNM as alternate interior angles

As two angles and one side is congruent, the triangles are also congruent:

ΔDCM ≅ ΔNBM (according to AAC postulate)

So their areas are same.

ii)

The quadrilateral has area of:

A(ADCB) = A(ADMB) + A(DCM)

And the triangle has area of:

A(ADN) = A(ADMB) + A(NBM)

Since the areas of triangles DCM and NBM are same, the quadrilateral ADCB has same area as triangle ADN.

5 0

3 years ago

Read 2 more answers

You want to apply a weed killer to your lawn. The directions on the bottle call for mixing 3 ounces of weed killer with 2 gallon

Alborosie

5/2 = 2.5

3 ounces x 2.5 = 7.5 ounces of weed killer

3 0

3 years ago

What is 3/4 - 2/7 i cant get it

nadya68 [22]

Answer:

=13/28

Step-by-step explanation:

you can also use symbolab for these types of math problems<3

6 0

3 years ago

What is the volume of this pyramid

irga5000 [103]

Check the picture below.

$\bf \textit{volume of a pyramid}\\\\ V=\cfrac{1}{3}Bh~~ \begin{cases} B=area~of\\ \qquad its~base\\ h=height\\[-0.5em] \hrulefill\\ B=\stackrel{\textit{triangular base}}{\frac{1}{2}(14)(18)}\\[1em] h=30 \end{cases}\implies V=\cfrac{1}{3}\left( \cfrac{1}{2}(14)(18) \right)(30) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill V=1260~\hfill$