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9966 [12]
2 years ago
10

Can you help me pls lol I’m doing a test

Mathematics
1 answer:
Schach [20]2 years ago
6 0

Answer:

Dont say your doing a test, brainly is strict and will delete your question because its timed

Step-by-step explanation:

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Solve the following quadratic equation 6x^2-5x-4=0
jeka94

Answer:

=

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x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

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6x^{2}-5x-4=0

6x2−5x−4=0

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a={\color{#c92786}{6}}

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c={\color{#129eaf}{-4}}

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Step-by-step explanation:

6 0
3 years ago
An 8-oz can of orange juice contains about 97 mg of vitamin C. About how
11111nata11111 [884]

Answer:

Step-by-step explanation:

12/8=1.5

1.5*97=145.5mg

5 0
2 years ago
Alan wants to bake blueberry muffins and bran muffins for the school bake sale. For a tray of blueberry muffins, Alan uses 1/3 c
True [87]
So we know there are 12 eggs and they will be distributed like this:

12=x2+y1
and 4 cups of flour:
4=1/3x+1/2y

let's see if we can find a solution in which all the materials are used:
12=x2+y1
4=1/3x+1/2y//*6

12=2x+y
24=2x+3y//*6

substract from each other:
12=2y
y=2
12=2x+y
12=2x+2
10=2x
x=5

So if nothing is wasted, he can make 5 blueberry muffins (making 12*5=60) and 2 bran muffins (2*9=18), together 78 dollars,

would it be better if instead of the bran muffins he did blueberry muffins (which are more expensive?)
for the branberry muffins he will used the double amount needed for 1: so 1 cup of oil and 2 eggs. From this he can only make 1 tray of blueberry muffins (and some oil will be left over), which will cost 12 dollars, which is less than 18

so he better make 6 blueberry and 2 bran trays






6 0
2 years ago
A marine biologist will collect data regarding the length and weight of each of 50 trout caught and released at five different l
Vesnalui [34]
I think that the best visual representation that the marine biologist would use is utilising a bar graph. A bar graph is composed of bars residing in a coordinate plane. In addition to that, the visual representation would most likely be used since the average weight and length of each trout coming from 5 different locations is compared.
3 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST
puteri [66]

Answer:

36

Step-by-step explanation:

There are 30 red marbles and the ratio of black to yellow is 4/5, so 4/5=orange/green=orange/30.

30 is 6 times 5, so black=6 times 4=24. There are 24 black marbles.

Total of black and yellow=24+30=54.

40% of the marbles are green so 60% are black/yellow. Also 60% is 54 marbles.

60% is 60/100=3/5 so 3/5 of the total is 54 marbles, therefore 1/5 is 54/3=18 and 2/5 is the number of red marbles=2 times 18=36 red marbles.

to be honest i can't think of anything original for the visual thing, but i think the pi chart from the person above me would work well

5 0
3 years ago
Read 2 more answers
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