/sci/ - Science & Math » Thread #11812239

68KiB, 1122x1012, 555a6081af322a4ba7496d30bb5b0bdf.jpg

View Same Google iqdb SauceNAO

First time posting here and have a standardized test I gotta take in a couple of weeks.

Anonymous Thu 18 Jun 19:53:55 2020 No.11812239 View Reply Original Report

Quoted By: >>11812242 >>11812246 >>11812250 >>11812700 >>11812711

You all might think I'm retarded, but this is shit I have not done since high school and early college. Im basically taking the GRE, if you all can help that would be awesome. No bully please.

Anonymous

Anonymous Thu 18 Jun 2020 19:54:43 No.11812241 Report

Quoted By: >>11812700

What is the value of the expression 4a +3bb! – 9, if a= -2 and b = 5?
a) 208
b) 242
c) 75
d) 66
e) 58

Anonymous

Anonymous Thu 18 Jun 2020 19:55:52 No.11812242 Report

Quoted By: >>11812700

>>11812239
4a+3b^2-9****

Anonymous

Anonymous Thu 18 Jun 2020 19:57:00 No.11812246 Report

Quoted By: >>11812700

>>11812239
The inequality is 7a + 3b > 30 is true for which values of a and b?
a) a = 1 and b = 2
b) a = 1 and b = 3
c) a = 2 and b = 2
d) a = 2 and b = 3
e) a = 2 and b = 6

Anonymous

Anonymous Thu 18 Jun 2020 19:58:42 No.11812250 Report

Quoted By: >>11812700

>>11812239
Write the equation of the line which passes through the points (-4, 6) and (-6,7).
a) y = *
!x + 4
b) y = *
!x + 7
c) y = - *
!x + 7
d) y = - *
!x + 4
e) y = - *
!x + 2

Anonymous

View Same Google iqdb SauceNAO 1592496667752.jpg, 46KiB, 582x582

Anonymous Thu 18 Jun 2020 22:32:54 No.11812700 Report

Quoted By:

>>11812241
>>11812242
4(-2)+3(5^2)-9=-8+3(25)-9=75-17=58
e

>>11812246
7(1) + 3(2) = 13 < 30
7(1) + 3(3) = 16 < 30
7(2) + 3(2) = 20 < 30
7(2) + 3(3) = 25 < 30
7(2) + 3(6) = 32 > 30

e

>>11812250
m = (7-6)/(-6-(-4) = -(1/2)
y - 6 = -(1/2)(x - (-4))
y = -(1/2)(x+4) + 6

>>11812239
If you want me to elaborate or have any other questions, let me know.

Anonymous

Anonymous Thu 18 Jun 2020 22:39:52 No.11812711 Report

Quoted By:

$a=-2,b=5; 4a+3b^2-9=-8+75-9=75-17=58$

$(7*1)+(3*2)=7+6=13<30 \\(7*1)+(3*3)=7+9=16<30 \\(7*2)+(3*2)=14+6=20<30\\ (7*2)+(3*3)=14+9=25<30 \\(7*2)+(3*6)=14+18=32>30$

$m=\frac{y_2-y_1}{x_2-x_1} \rightarrow m=\frac{7-6}{4-(-6)}=\frac{1}{-2}\\ y-6=-\frac{1}{2}(x-(-4)) \\y=-\frac{1}{2}(x+4)+6$

>>11812239
Redid everything in TeX, so it's easier to read.

Anonymous

Anonymous ## Mod Fri 19 Jun 2020 10:22:01 No.11814355 Report

Quoted By:

This thread was moved to >>>/adv/22363497

Capcode	All Only User Posts Only Moderator Posts Only Admin Posts Only Developer Posts
Show Posts	All Only With Images Only Without Images
Deleted Posts	All Only Deleted Posts Only Non-Deleted Posts
Ghost Posts	All Only Ghost Posts Only Non-Ghost Posts
Post Type	All Only Sticky Threads Only Opening Posts Only Reply Posts
Results	All Grouped By Threads
Order	Latest Posts First Oldest Posts First

Your latest searches