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3 years ago

8

Hi can anybody help me with this please

1 answer:

Nezavi [6.7K]3 years ago

7 0

X+13=-4
-13 -13
x=-17

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Find the discriminantof the quadratic equation root 2 X square + 7 x + 5 root 2

Vadim26 [7]

$\displaystyle\ 2x^2+7x+5\sqrt{2} =0 \\\\\boxed{D=7^2-4\cdot2\cdot 5\sqrt{2} =49-40\sqrt{2} }$

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3 years ago

What is 3.2 divided by 5?

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3.2/5 is 0.64
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Is 8 a solution to 1/2x+9=13? Explain

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A bag with 10 marbles has 2 yellow marbles, 4 blue marbles, and 4 red marbles. A marble is chosen from the bag at random. What i

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Sheldon harvests the strawberries and tomatoes in his garden.

shtirl [24]

Answer:

A. 3 13/20

B.3.8 kg

C.Strawberries

Step-by-step explanation:

In order to solve this we just need to find the amount of strawberries he picked, and if he picked 1 2/5 less in the morning and in the morning he picked 2 1/4, we just add that up to know how much he picked in the afternoon:

$1\frac{2}{5}+ 2\frac{1}{4}\\1 \frac{2(4)}{20}+ 2\frac{1(5)}{20}\\1 \frac{8}{20}+ 2\frac{5}{20}\\\\3\frac{13}{20}$

So in the afternoon he picked $3\frac{13}{20}$ .

Now he picked 5 3/10 kg of tomatoes but 1.5 were rotten, we just have to withdraw the rotten from the total:

$5\frac{3}{10} -1\frac{1}{2} \\5\frac{3}{10} -1\frac{5}{10} \\4\frac{3-5}{10} \\3\frac{13-5}{10} \\3\frac{8}{10}$

So now we know that he picked $3\frac{8}{10}$ kg of good tomatoes.

If he picked in the afternoon and the morning 5.05 kg of strawberries, he picked more strawberries than tomatoes.

7 0

3 years ago