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3 years ago

What are the solutions to the equation y = 4x2 + 50 – 6?

Mathematics

2 answers:

krok68 [10]3 years ago

8 0

Y=52
first do 4x2 which is 8 plus 50 is 58 minus 6 is 52.

kifflom [539]3 years ago

5 0

Y = 52

Explanation: 4x2 is 8 and add 50 which is 58 - 6 which is 52

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What is 395.20 divided by 5 rounded

olchik [2.2K]

I think it is 395.20 / 5 = 79.04, rounded down to 79

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3 years ago

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3. Given this quadratic equation, 2x2 - x - 28 = 0,

JulijaS [17]

Answer:

a) (2x+7)(x-4)

b) x = -7/2 and x = 4

Step-by-step explanation:

a) (2x ?)(x ?)

set up the above and considered factors of 28 that, when paired with 2, would give me -1x and -28 → (1·28, 2·14, 4·7)

after trial-and-error, found that 4 and 7 worked (used un-FOIL)

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*********

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2 years ago

mezya [45]

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2 years ago

There are 3 different roads from city a to city b and 2 different roads from city b to city

Nat2105 [25]

$3\cdot2=6$

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3 years ago

Question 4

Elanso [62]

Answer:

a $A = 30 + 0.45 n$

b $A = 90.3$

c 0 customers

Step-by-step explanation:

Given

$Base\ Amount = 30$

$Rate = 0.45$ per customer

Solving (a): Amount (A) on n customers

This is calculated as:

$A = Base\ Amount + Rate * n$

$A = 30 + 0.45 * n$

$A = 30 + 0.45 n$

Solving (b): Amount on 134 customers

In this case: n = 134

So:

$A = 30 + 0.45 * 134$

$A = 30 + 60.3$

$A = 90.3$

Solving (c): Customers at noon.

At noon, the amount is 30.

So:

$A = 30 + 0.45 n$

$30 = 30 + 0.45n$

Collect like terms

$0.45n = 30 - 30$

$0.45n =0$

$n = 0$

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3 years ago