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kkurt [141]
3 years ago
5

HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing. Check ALL that apply

Mathematics
1 answer:
sammy [17]3 years ago
4 0

Answer:

  C.  65

Step-by-step explanation:

Compare to the standard form ...

  ax² +bx +c

to find the values of a, b, c. They are ...

  a=2, b=3, c=-7

The discriminant is ...

  d = b² -4ac

  d = (3)² -4(2)(-7) = 9 +56

  d = 65 . . . . . . matches choice C

You might be interested in
What two number multiplied equal 12 but also added together equal -7
FromTheMoon [43]
A) x * y = 12
B) x + y = -7
A) x = 12 / y
Substitute this into B
B) 12/y + y = -7
multiplying both sides by "y"
12 + y^2 = -7y
y^2 + 7y + 12 = 0
y = -4
and from equation B we calculate x as -3



7 0
3 years ago
naveed makes 6.5litres of soup,correst to the nearest 0.5 litre he serves portions of his soup in 330ml cups correct to the near
Karolina [17]

Answer:

Number of Cups = 19

Step-by-step explanation:

Given

Size of Soup = 6.5 litres

SIze of cup = 330 ml

Required

Number of Cups.

First, it'll be assumed that the size of cups are uniform (the same).

The number of cups needed is calculated by dividing the size of soup by the size of the cup;

Number of Cup = Size of Soup/Size of Cup

Number of Cup = 6.5 litres/ 330 ml

<em>Convert units;</em>

<em>1 litres = 1000 ml</em>

<em>So,</em>

<em>6.5 litres = 6.5 * 1,000 ml</em>

<em>6.5 litres = 6,500 ml</em>

<em></em>

So,

Number of Cups = 6500 ml/330 ml

Number of Cups = 19.696969697

From the solution above, Naveed will definitely be able to serve 19 cups. The remaining fractional part won't fill a cup;

Hence, Number of Cups = 19

3 0
3 years ago
6 for $36.00 unit rate
Pavel [41]
<span>Yes, so our unit rate is 1:6</span>
8 0
3 years ago
Read 2 more answers
1.
Ivenika [448]
Here’s the full solution:

(Please mark as BRAINLIEST that would mean a lot to me)

4 0
2 years ago
Write the value of 83,479
Ann [662]
Eighty three thousand four hundred and seventy nine
6 0
3 years ago
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