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erma4kov [3.2K]
3 years ago
10

PLS HELP ME ASAP FOR 8, 9, 10, and 11!!! (SHOW WORK!!! FOR ALL SHOW WORK!!!!! +LOTS OF POINTS!!

Mathematics
2 answers:
Hoochie [10]3 years ago
8 0
8. 4j -2j -5k +3k (combine like terms)

2j -2k 

B

9. -6m+4m +2n-3n
-2m-1n

D

10. ( 2x-1) + (3x-1) +(3x-1) 
2x+3x+3x -1-1-1
8x-3

D
Dovator [93]3 years ago
7 0
8. B   9. D   10. D  11A. -4r+2s-9

For all of them you just combine like terms, or in other words combine the sections that have the same variable.
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Approximate: log5 4/7
Evgesh-ka [11]
   Properties of Logs

logb(x/y) = log<span>bx</span> - log<span>by</span>.

therefore

log5 (4/7)= log5 (4)- log5 (7)

<span>Solve log 5 (4) and log 5 (7)  with the base change of the logarithm</span>

<span>log 5 4 = log 4 / log 5 </span>

 Use the calculator: 

<span> <span>log 5 4 =0.8613531161 </span></span>

 log 5 7 = log 7 / log 5 

<span>log 5 7 =1.2090619551</span>

<span>log5 (4/7)= log5 (4)- log5 (7)=-0.347708839</span>

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3 years ago
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136゚ is the same as ___ radians<br> Round to the nearest hundredth of a radian
Crazy boy [7]

to change from degrees to radians

multiply by pi/180

136 * pi/180 = 136/180 * pi

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34/45 * pi

.755556 * pi    pi=3.14159

2.373648

to the nearest hundredth

2.37 radians

8 0
3 years ago
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The relationships for Paul's and Steve's height with respect to Theresa's height are described above. First you will write expre
Makovka662 [10]

Answer:

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3 years ago
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Find the value of x and the value of y
serg [7]

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

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use Cos for y .... b/c we see that function above has all the pieces we are going to work with

use Sin for x .. for the same reason above

Cos(30) = y / 4\sqrt{2}

4\sqrt{2}Cos(30) = y

4\sqrt{2}\sqrt{3}/2 = y

2\sqrt{6} = y

leave the answer for y like that.. it's in  'exact" form

now for x

Sin(30) = x / 4\sqrt{2}

4\sqrt{2}Sin(30) = x

4\sqrt{2}* 1/2 = x

2\sqrt{2} = x

and leave your answer for x like that as it's in it's exact form.  :)

oh and I see the answer in the list.. do you?  :)

8 0
3 years ago
3/8 + 3/4 in simplest form
zalisa [80]

Answer:

1 and 1/8

Step-by-step explanation:

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I hope I helped!

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