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Andre45 [30]
3 years ago
8

Need help because I don't understand

Mathematics
1 answer:
marusya05 [52]3 years ago
6 0
-5&2

X^2-6x+9x+9-19=0
X^2+3x-10
(X+5)(X-2)
X+5=0x-2=0
X= -5. X=2
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I need help on this asap please. <br> im being timed.<br> and i put in a photo of the problem.
Elden [556K]

F=ma\\\\a.\\ma=F\qquad|\text{divide both sides by}\ a\neq0\\\\m=\dfrac{F}{a}\\\\b.\\F=-30,\ a=6.\ \text{Substitute}\\\\m=\dfrac{-30}{6}=-5\\\\c.\\ma=F\qquad|\text{divide both sides by}\ m\neq0\\\\a=\dfrac{F}{m}\\\\F=30,\ m=10.\text{Substitute}\\\\a=\dfrac{30}{10}=3

6 0
2 years ago
I need help with this math question...what is 5^2+3
Sergio [31]

Answer:

it is 28

Step-by-step explanation:

all you have to do is find what 5 squared is, which its 25 then add 3 which gives you 28, hope this helps

6 0
2 years ago
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The Fabric storage box below is shaped like a rectangular prism how much fabric is needed to cover the exterior of the box
SSSSS [86.1K]

Answer:

2952 square centimeters are needed to cover the exterior of the box.

Step-by-step explanation:

We need to cover five external faces of the box. The surface area formula (A_{s}), measured in square centimeters, is derived from surface area formula for parallelpiped:

A_{s} = w\cdot l + 2\cdot w\cdot h + 2\cdot l \cdot h (1)

Where:

w - Width, measured in centimeters.

l - Length, measured in centimeters.

h - Height, measured in centimeters.

If we know that w = 36\,cm, l = 23\,cm and h = 18\,cm, then the outer surface area of the storage is:

A_{s} = (36\,cm)\cdot (23\,cm)+2\cdot (36\,cm)\cdot (18\,cm)+2\cdot (23\,cm)\cdot (18\,cm)

A_{s} = 2952\,cm^{2}

2952 square centimeters are needed to cover the exterior of the box.

5 0
3 years ago
Can someone help me with number 6 pls. I will give brainly.
aalyn [17]

Answer:

The answer is... x = 7 I used an app called Cymath is goes down step by step to help.

Step-by-step explanation:

I hope I helped you! :)

3 0
3 years ago
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A. A container holds 0.500 qt of liquid. How many milliliters of lemonade will it hold?
Nady [450]

Answer:

<em>A container can hold 473.176 ml</em>

<em>42.52 grams is nitrogen. </em>

Step-by-step explanation:

<u>Part A:</u>

We have given that a container holds 0.500 qt . Now we have to find how many milliliters of lemonade it can hold.

We know that 1 qt = 946.353 ml

To find how many milliliters of lemonade a container hold, we have to convert 0.500qt into ml.

As we have mentioned above that 1 qt = 946.353 ml

Multiply the volume value by 946.353 .

0.500 * 946.353

= 473.176 ml

<em>It means a container can hold 473.176 ml</em>

<u>Part B:</u>

Convert the unit oz  to grams. The ratio is 1 ounce is to 28.34 grams.

We have 10.0 oz.

10* 28.34 = 283.495

This would mean 10 oz is equivalent to 283.50 grams. It is given that the fertilizer is 15% by mass nitrogen. It means for every 100 g of fertilizer 15 grams of that is nitrogen. Hence for every 283.50 grams of fertilizer

<em>283.50 * (15/100) = 42.52 grams is nitrogen. </em>

<em></em>

8 0
2 years ago
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