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2 years ago

Another quiz am I right? Please help me?

Mathematics

2 answers:

makvit [3.9K]2 years ago

6 0

Answer:

see below

Step-by-step explanation:

Sam and a friend used $4, so 4x2

Four friends used $6, so 6x4

Plus three for the cake

So 8+24+3

You get 4.375, or $4.38

Softa [21]2 years ago

5 0

Answer:

Each friend pays $7

Step-by-step explanation:

So, to find how much each friend payed if they all split the bill evenly, we need to add up to find the total cost, and then divide it by the amount of people paying.

So,

(2 salads * $4) + (4 sandwiches * $6) + (1 slice of cake * $3) =

8 + 24 + 3 = 35

Total bill before tax = $35

$35 / 5 people paying = $7 per person

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Liula [17]

$\huge \bf༆ Answer ༄$

Let's solve ~

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1 year ago

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Question 1- explain how Sheldon immediately knew howard was incorrect?

Dmitrij [34]

Answer:

Part 1) In the procedure

Part 2) In the procedure

Step-by-step explanation:

Part 1) Observing the graph

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$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

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$2x^{2}-7x-4=0$

$a=2\\b=-7\\c=-4$

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$x=\frac{-(-7)(+/-)\sqrt{-7^{2}-4(2)(-4)}} {2(2)}$

$x=\frac{7(+/-)\sqrt{49+32}} {4}$

Howard's error is in this step, is wrong with the sign of the number 7, is positive instead of negative

$x=\frac{7(+/-)\sqrt{81}}{4}$

$x=\frac{7(+/-)9}{4}$

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Step-by-step explanation:

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