3 years ago

Which expression has a value that is equivalent to 5n + 13 when n = -5?

Mathematics

1 answer:

Taya2010 [7]3 years ago

6 0

I believe the answer is D. Sorry if I'm wrong, did the math in my head

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Pls need help ASAP <br> Will make brainliest

expeople1 [14]

Answer:

A=is equal B=is equal C=Is equal D=is equal

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

the length of a rectangle is 8cm more than the width and its area is 172cm2 .find the width of the rectabgle

nikdorinn [45]

$l-the\ length\\l+8-the\ width\\A=172\ cm^2\\\\A=lengtf\cdot width\\\\subtitute\\\\l(l+8)=172\\\\l^2+8l=172\ \ \ |subtract\ 172\ from\ both\ sides\\\\l^2+8l-172=0\\a=1;\ b=8;\ c=-172\\\\\Delta=b^2-4ac\\\\\Delta=8^2-4\cdot1\cdot(-172)=64+688=752 > 0\\\\l_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ l_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{752}=\sqrt{16\cdot47}=4\sqrt{47}\\\\l_1=\dfrac{-8-4\sqrt{47}}{2\cdot1}=-4-2\sqrt{47} < 0\\\\l_2=\dfrac{-8+4\sqrt{47}}{2\cdot1}=-4+2\sqrt{47} > 0\\\\The\ width:l+8=-4+2\sqrt{47}+8=4+2\sqrt{47}\\\\Answer:\boxed{length=(2\sqrt{47}-4)cm;\ width=(4+2\sqrt{47})cm}$
$length\approx9.71cm;\ width\approx17.71cm$

4 0

3 years ago

David rented a truck for one day there was a base base fee of $19.99 and there was an additional charge of $.84 for each mile dr

MissTica

196 Miles

184.63-19.99=164.64

164.64/.84= 196

7 0

2 years ago

What are the next 4 multiples of 4/8 in a fraction

Oliga [24]

Answer:

8/16, 12/24, 16/32, and 20/45

Step-by-step explanation: