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RUDIKE [14]
3 years ago
11

Please help fast ill give 50 points

Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0

Answer:

a

Step-by-step explanation:

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Use the discriminant to describe the roots of each equation. Then select the best description. 3x2 - 2 + 7x = 0
forsale [732]
Hello :
the the discriminant : 3x² + 7x - 2 = 0 is : (7)²-4(3)(-2) =49+24=73
two real roots
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3 years ago
Mei likes to make desserts for bake sales. Last month, she made 2 batches of brownies and 3 batches of cookies, which called for
tino4ka555 [31]

Answer: she uses 2 eggs for one batch of brownies and 4 eggs for one batch of cookies.

Step-by-step explanation:

Let x represent the number of eggs that she uses for one batch of brownies.

Let y represent the number of eggs that she uses for one batch of cookies.

Last month, she made 2 batches of brownies and 3 batches of cookies. This means that

2x + 3y = 16 - - - - - - - - - -1

The month before, she baked 1 batch of brownies and 1 batch of cookies, which required a total of 6 eggs. This means that

x + y = 6 - - - - - - - - - - - - - 2

Multiplying equation 1 by 1 and equation 2 by 2, it becomes

2x + 3y = 16

2x + 2y = 12

Subtracting, it becomes

y = 4

Substituting y = 4 into equation 2, it becomes

x + 4 = 6

x = 6 - 4 = 2

7 0
3 years ago
A change in velocity <br><br><br> a. speed<br> b. velocity<br> c. acceleration
nata0808 [166]

Answer:

C

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Someone please help
OLEGan [10]

Answer:

e= -2

Step-by-step explanation:

1) distribute so you get 6+0.75e=2-1.25e

2) move the variable to one side so you get 6+2e=2

3) subtract the 6: 2e=-4

4) divide by 2: e= -2

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3 years ago
A student answer 86 problems on a test correctly and received a grade of 98% how many problems were on the test if all the probl
adoni [48]

Answer:

87 or 88

Step-by-step explanation:

86 is 98% of 87.755102

So, the number of problems must have been 87 or 88

6 0
2 years ago
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