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MrRa [10]
3 years ago
5

How do u solve (-4+2) (4- -4)

Mathematics
1 answer:
gavmur [86]3 years ago
8 0

Answer:

6

Step-by-step explanation:

(-4+2) (4- -4)

-Add your invisible 1

1(-4+2)1(4- -4)

-This removes the parentheses.

-Combine the 2 negative signs in the second set of parentheses.(Its now a positive or plus sign.)

-4+2+4+4

Combine like terms.

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A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand co
pishuonlain [190]
Let the amount of the first brand be x, and let the amount of the second brand be y.
0.09x + 0.14y = 240 * 0.13 .................(1)
x + y = 240 ..............(2)
y = 240 - x .......................(3)
Plugging the value for y from equation (3) into equation (1), we get:
0.09x+0.14(240-x)=240\times0.13 ...............(4)
Equation (4) simplifies to:
-0.05x = -2.4
giving the value for the required amount of 9% vinegar as 48 ml and the required amount of 14% vinegar as 240 - 48 = 192 ml.
7 0
3 years ago
2x2- i really need help and i will mark you brainliest just help me pls
Nady [450]

Answer: 2 x2=4 or 2x-2=-4

Step-by-step explanation: its simple math

3 0
3 years ago
Read 2 more answers
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Paladinen [302]
The solid shape is a cone and a half sphere. So the equation would be (cone volume) + (1/2 sphere volume):
cone =  \frac{1}{3} \pi {r}^{2} h \\ sphere =  \frac{4}{3} \pi {r}^{3}  \\ object = ( \frac{1}{3} \pi  {r}^{2} h) +  \frac{1}{2} ( \frac{4}{3} \pi  {r}^{3} )
If the volume of the cone is 270pi and the height of the cone is 10, then:
270\pi =  \frac{1}{3} \pi {r}^{2} (10) \\ 27 =  \frac{1}{3}  {r}^{2}  \\ 80 =  {r}^{2}  \\ r = 9
The radius of the object is 9 cm. Therefore, we can plug into the formula for the total volume:
object = 270\pi +  \frac{1}{2} ( \frac{4}{3} \pi {(9)}^{3} ) \\  = 270\pi +  \frac{2}{3} (729\pi) \\  = 270\pi \: + 243\pi \\  = 513\pi
The total volume is 513 pi cm^3
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4 years ago
5 out of 25 girls said that they like pink as their favorite color. If you were to ask 325 girls, how many would say they liked
lesya [120]

Answer:

65 girls

Step-by-step explanation:

325/25=13    13x5=65

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3 years ago
Some help me please :( I really need help with this
katrin2010 [14]
First part, in quadrilateral WXYZ, WX is parallel to ZY because both sides are equal while the other parallel segments WZ and XY are equal but different side lengths.

The measure of angle Z is 78 because both of the pictures are the same, only rotated. and angle S and Z are acute.
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