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evablogger [386]
3 years ago
6

I didn't post the picture on my last one-

Mathematics
2 answers:
Alborosie3 years ago
7 0

Answer:

you have enough i believe

Step-by-step explanation:

love history [14]3 years ago
5 0
You have enough and it’s $504
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Kerion has a beaded necklace business. She can make 15 necklaces in 2 hours how long will it take her to make 45?
love history [14]

6 hours

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8 0
4 years ago
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Oduvanchick [21]
D is the answer as the equation, if it was a graph, is moving towards the left side of the graph at -6.
7 0
4 years ago
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Solve the following system of equations for all three variables.
Semenov [28]

Answer:

x=2, z=4, y=-6

Step-by-step explanation:

Add

<u>-9x-y+2z= -4</u>

<u>-6x+y+5z= 2</u>

-9x-6x is -15x

-y+y is 0

2z+5z is 7z

-4+2 is -2

So the equation now looks like this: -15x+7z=-2

Subtract

<u>-6x+y+5z= 2</u>

<u>-4x+y+5z= 6</u>

So the equation will look like this:

<u>-6x+y+5z= 2</u>

<u>-(-4x+y+5z= 6)</u>

-6x+4x is -2x

y-y is 0

5z-5z is 0

2-6 is -4

So the equation now looks like this: <u>-2x=-4</u>

You can find x by dividing -2 on both sides:

<u>x=2 </u>

So 2 is x

Now you can substitute x into 2

-15(2)+7z=-2

-30+7z=-2

7z=28

Divide 7 on both sides:

<u>z=4</u>

So now you can substitute z into 4 (For any of the three equation)

-4(2)+y+5(4)=6

-8+y+20=6

20 minus 8 is 12

y+12=6

Subtract 12 on both sides:

y=-6

So the answers are

x=2, z=4, y=-6

Hope this helps!

5 0
3 years ago
What is the equation of the following line written in slope intercept form
pentagon [3]

Answer:

The equation can be y = -7x+11

8 0
4 years ago
A farmer uses a lot of fertilizer to grow his crops. The farmer's manager thinks fertilizer products from distributor A contain
noname [10]

Answer:

Z_{H0}= 1.56

Step-by-step explanation:

Hello!

You have two independent samples of fertilizers from distributor A and B, and need to test if the average content of nitrogen from fertilizer distributed by A is greater than the average content of nitrogen from fertilizer distributed by B.

Sample 1

X₁: Content of nitrogen of a fertilizer batch distributed by A

n₁= 4 batches

Sample mean X₁[bar]= 23pound/batch

σ₁= 4 poundes/batch

Sample 2

X₂: Content of nitrogen of a fertilizer batch distributed by B

n₂= 4 batches

Sample mean X₂[bar]= 18pound/batch

σ₂= 5 pounds/batch

Both variables have a normal distribution. Now since you have the information on the variables distribution and the values of the population standard deviations, you could use a pooled Z-test.

Your hypothesis are:

H₀: μ₁ ≤ μ₂

H₁: μ₁ > μ₂

The statistic to use is:

Z= <u> X₁[bar] - X₂[bar] - (μ₁ - μ₂) </u>~N(0;1)

       √(δ²₁/n₁ + δ²₂/n₂)

Z_{H0}=<u>   </u>(<u>23 - 18) - 0  </u> = 1.56

         √(16/4 + 25/4)

I hope this helps!

8 0
3 years ago
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