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oee [108]
4 years ago
15

Danielle and Erin live on the same street. Danielle lives at number 13. If Danielle's house is 5 less than 3 times Erin's house

number, write and solve an equation to find Erin's house number
Mathematics
1 answer:
kodGreya [7K]4 years ago
7 0
D=13
d=-5+3 times erin
13=3e-5
add 5 to both sides
18=3e
divide by 3
6=e
erin=3
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Find the slope (-2,-4) (-5,5)
diamong [38]

Answer:

Your answer would be Slope m = -3

Step-by-step explanation:

Step 1: Graph the points on a <u>coordinate plane</u>( <em>refer to image!)</em>

Whenever your trying to find a slope of 2 order pairs, remember this

m = rise/run. ( Slope = rise over run.) = Δy/Δx

Now we solve:

M = rise/run = Δy/Δx

M = y2 - y1/x2-x1

M = 5 - (-4) / -5-(-2)

<u>So we get  M = 9/-3 and </u><u>9 divided by -3 is -3 </u>

<u />

So, the slope of (-2,-4) and (-5,5) is -3.

5 0
2 years ago
Find m∠U.<br> Write your answer as an integer or as a decimal rounded to the nearest tenth.
olga2289 [7]

Answer:

Answer:

50.2

Step-by-step explanation:

ut =  \sqrt{ {6}^{2}  +  {5}^{2} }   \\  \sqrt{36 + 25}  \\  \sqrt{61 }  \\ using \: cosine \: rule \\ cos \: u =  \frac{ {5}^{2} + 61 - 36 }{2 \times 5 \times  \sqrt{61} }  \\  \\  =  \frac{25 + 61 - 36}{78}  \\  \\  = \frac{50}{78 }  \\  \cos \: u = 0.64 \\ m∠U. = 50.2

7 0
2 years ago
the area of a roof on a house is n756 square inches. the length of the roof is 108 inches. how many inches wide is the roof?
Leno4ka [110]
 <span>Area = Length * Width 

So Width = Area/Length = 756/108 = 7 inches wide</span><span>
</span>
6 0
3 years ago
I am less than 10 I am not a multiple of 2 I am a composite number
Rama09 [41]

Answer:

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Step-by-step explanation:

Composite Numbers before 10: 4, 6, 8, and 9

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4 0
3 years ago
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Vlad1618 [11]

Answer:

h(t) = -16t2 + 144

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h(2) - h(1) = 80 - 128 = -48 ft

It fell 48 ft between t = 1 and t = 2 seconds.

It reaches the ground when h(t) = 0

0 = -16t2 + 144

t = √(144/16) s = 3s

It reaches the ground 3s after being dropped.

Step-by-step explanation:

6 0
2 years ago
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