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scoray [572]
3 years ago
6

Help me NOW on problems 9 - 14 NOW!!!

Mathematics
1 answer:
Lelu [443]3 years ago
5 0

Answer:

#9. 4x - y = 2; slope=4; x inter= -1/2; y inter=2

#10. 3x + y = 5; slope=-3; xinter= 5/3; yinter=5

#11. X-y=-7; slope=1; x inter=1/-7; y inter= 7

#12. 5x-y=-3; slope= 5; x inter=-3/5; y inter=3

#13. 8x+y=12; slope=-8; x inter=3/2; y inter=12

#14. 9x-y=-5; slope=9; x inter=-5/9; y inter=5

Step-by-step explanation:

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9.
abruzzese [7]

Answer:corvette correct

Step-by-step explanation:

2(x+6)=-36 2(x+6)=-36 2(x+6)=-36 2(x+6)=-36

4 0
3 years ago
write the following sentence as an equation: x is directly proportional to y and is inversely proportional to the cube of z.
Brrunno [24]

Step-by-step explanation:

x=y

y=1/z^3

Now,

for equation,

x=y=1/z^3

5 0
3 years ago
This is really hard for me can someone please help<br> This gives me a headache trying to do it
Papessa [141]
1. 3x-5<19 
    3x-5+5<19+5
    3x<24
    3x/3<24/3
    x<8

2. -2x+12<-4
    -2x+12-12<-4-12
    -2x<-16
    -2x/-2>-16/-2
       x>8

3. Because the numbers are positive when divided.

4. The inequality sign is reversed because the 2nd to last step is divided by by a negative number. (This is also the same for multiplication)
 
5. -7d+8>29
    -7d+8-8>29-8
    -7d/7>21/-7
       d>-3

6.12-3b<9
   12-12-3b<9-12
    -3b/-3>-3/-3
        b>1

7.z/7-6=>-5
   z/7-6+6=>-5+6
   z/7*7=>1*7
       z=>7                                      (what grade are you in?!)
8 0
3 years ago
Quality control finds on average that 0.026% of the items from a certain factory are detective. One month, 4000 items are checke
telo118 [61]

Given that 4000 items are checked in one month, let the number of detective items be represented as y.

Quality control finds on average that 0.026% of the items in the factory are detective. This implies that

\text{Number of }\det ective\text{ items = }\frac{\text{0.026}}{100}\times\text{Total number of items checked}

When 4000 items are checked, we have the number of detective items to be evaluated as

\begin{gathered} \text{Number of }\det ective\text{ items = }\frac{\text{0.026}}{100}\times\text{Total number of items checked} \\ y=\frac{0.026}{100}\times4000 \\ \Rightarrow y=1.04 \end{gathered}

Hence, the number of detective items is 1.04.

7 0
1 year ago
Solve please. Correctly<br> 3(1 - 2a) = -3a - 18
True [87]

Answer:

a = 7

Step-by-step explanation:

3(1 - 2a) = -3a - 18

3 - 6a = - 3a - 18

Add 18 to each side:

3 + 18 - 6a = - 3a - 18 + 18

21 - 6a = - 3a

Add 6a to each side:

21 - 6a + 6a = - 3a + 6a

21 = 3a

3a = 21

Divide each side by 3:

3a ÷ 3 = 21 ÷ 3

a = 7

6 0
2 years ago
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