1 year ago

Please help!

Mathematics

2 answers:

Alla [95]1 year ago

7 0

Answer:

Step-by-step explanation:

noname [10]1 year ago

4 0

The answer is B step by step explanation

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Please answer this explain answer 20 pts

aleksklad [387]

Answer:

b i think

Step-by-step explanation:

hope this helps

4 0

2 years ago

(assume no variable equals 0) PLEASE HELP

saw5 [17]

$(3n^2 + 1) + (8n^2 - 8)\\= 3n^2 + 1 + 8n^2 - 8\\= 11n^2 - 7$

5 0

2 years ago

a recipe calls for 6 cups water and 4 cups of flour if the recipe is increased how many cups of water should be used with 6 cups

ololo11 [35]

$6\ cups\ of\ water\ for\ 4\ cubs\ of \ flour\\\\
x\ cups\ of\ water\ for\ 6\ cubs\ of \ flour\\\\making\ proportion\\\\
6-4\\x-6\\\\cross\ multiplication\\\\
6*6=4x\\\\
36=4x\ \ \ \ | divide\ by\ 4\\\\
x=9\\\\
9\ cups\ of\ water\ should\ be\ used.$

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2 years ago

Dario buys applesauce for a family reunion. He needs 23 cups, and he buys them in packs of 6. How many packs does Dario need?

hodyreva [135]

He has to buy 4 packs. If you divide 23 by 6, you get 3.833 but you can’t buy a fraction of a pack so you have to round up and buy 4 packs. Hope this made sense; I can explain further if needed!

4 0

2 years ago

What are the solutions of x² + 6x - 16 = 0?

AveGali [126]

Step-by-step explanation:

$x_{1,\:2}=\frac{-6\pm \sqrt{6^2-4\cdot \:1\cdot \left(-16\right)}}{2\cdot \:1}\\\sqrt{6^2-4\cdot \:1\cdot \left(-16\right)}\\\sqrt{6^2+64}\\\sqrt{36+64}\\\sqrt{100}\\\sqrt{10^2}\\=10\\x_1=\frac{-6+10}{2\cdot \:1},\:x_2=\frac{-6-10}{2\cdot \:1}\\\\\bold{x_1:2}\\\frac{-6+10}{2\cdot \:1}\\\frac{4}{2\cdot \:1}\\\frac{4}{2}\\=2\\\\\bold{x_2:-8}\\\frac{-6-10}{2\cdot \:1}\\\frac{-16}{2\cdot \:1}\\\frac{-16}{2}\\-\frac{16}{2}\\=-8$

Answer:

x₁ = 2

x₂ = -8

6 0

2 months ago