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3 years ago

Use the drop-down menus to choose steps in order to correctly solve 3+4d−14=15−5d−4d for d.

Mathematics

2 answers:

Kisachek [45]3 years ago

8 0

Answer:

d=2

Step-by-step explanation:

SHOWN BELOW

8090 [49]3 years ago

7 0

Answer: d = 2

Step-by-step explanation:

3 + 4d - 14 = 15 -5d - 4d

First, we collect the like terms

4d + 5d + 4d = 15 + 14 -3

13d = 29 - 3

13d = 26

We divide bothside by 13

13d/13 = 26/13

d = 2

Therefore d = 2

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Kindly answer this one. Thank you.

steposvetlana [31]

Answer:

See below.

Step-by-step explanation:

I'm assuming these questions are about the Midline Theorem (segment AL joins the midpoints of the non-parallel sides.

♦ The midline's length is the average of the lengths of the top and bottom parallel sides.

$AL=\frac{OR+CE}{2}$

Use this equation and substitute values given in each problem, then solve for the missing information.

1. AL = x, CE = 9, OR = 5

$x=\frac{9+5}{2}=7$

2. AL = <em>m</em> - 4, CE = 15, OR = 17

$m-4=\frac{15+17}{2}=16\\\\m-4=16\\\\\\m=20\\\\AL=20-4=16$

3. OR = y + 5, AL = 15, CE = 18

$15=\frac{(y+5)+18}{2}\\\\15=\frac{y+23}{2}\\\\30=y+23\\\\7=y\\\\OR = 7+5=12$

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2 years ago

Describe Functions help!!!!

RideAnS [48]

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3 years ago

Liam has 9/10 gallon of paint for painting the bird houses he sells at the craft fair each birdhouse requires 1/20 gallon of pai

Rina8888 [55]

So to get the fractions easier to understand you need to put them on the same level you are on. So change the 9/10 gallons to 18/20 ( this makes them easier to deal with the 1/20)
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3 years ago

If the volume of the planter is 3,072 cubic inches, how tall is the planter?

andrezito [222]

$\it \mathcal{V} =\dfrac{\mathcal{A}_b\cdot h}{3} \Rightarrow h = \dfrac{3\mathcal{V}}{\mathcal{A}_b}= \dfrac{3\cdot3072}{\mathcal{A}_b}\ \ \ \ \ (*)
\\\;\\ \\\;\\
\mathcal{A}_b = \dfrac{\ell^2\sqrt3}{4} = \dfrac{16^2\sqrt3}{4} =\dfrac{16\cdot16\sqrt3}{4} =4\cdot16\sqrt3=64\sqrt3\ \ \ \ (**)
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3 years ago

You have 5,814 feet of rope that you need to cut into 27-foot sections. How many sections of rope will you have?

natta225 [31]

5814/27 = 215.33

215 x 27 = 5805

5814-5805 = 9

Answer is B 215 sections with 9 feet left over

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3 years ago