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Valentin [98]
3 years ago
14

Which equation can be solved using using the expression below for x?

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0

Answer:

0 = 10x^2 + 3x + 2


Step-by-step explanation:

That is the quadratic formula:

x = -b +- sqrt( b^2 - 4ac) / 2a

It is used for an equation in the form 0 = ax^2 + bx + c

so just plug a, b, and c, from the quadratic formula into that equation

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Evaluate p(x) = -3 + 4x when x = -2, 0, &amp; 5<br><br> p(-2) =<br> p(0) = <br> p(5) =
Kay [80]

Answer:

p(-2) = -11

p(0) = -3

p(5) = 17

Step-by-step explanation:

<u>Step(i):</u>-

Given that the polynomial function  p(x) = -3 +4x ..(i)

Given x =-2 , 0 and 5

put x =-2 in equation (i)

p(-2) = -3 +4(-2)

       = -3 -8

p(-2) = -11

<u><em>Step(ii):-</em></u>

put x =0 in equation (i)

p(0) = -3 +4(0)

       = -3 +0

p(0) = -3

<u><em>Step(iii):-</em></u>

put x = 5 in equation (i)

p(5) = -3 +4(5)

       = -3 +20

p(5) = 17

<u><em></em></u>

4 0
3 years ago
Two movie tickets and 3 snacks are $24.two movie tickets and 5 snacks are $28.how much is a movie ticket and how much is a snack
maks197457 [2]

Answer:

S: $0.18

T: $11.73

Step-by-step explanation:

T=tickets

S=snacks

2t+3s=24

5s=28

Divide 5 with 28.

Roughly $0.18

s=0.18.

2t+3(0.18)=24

2t+0.54=24

Subtract 0.54:

2t+0.54-0.54=24-0.54

2t=23.46

Divide 2:

t=11.73

So A snack is $0.18, and a ticket is $11.73

Hope this helped!

4 0
3 years ago
If F(x) = x + 6 and G(x) = x4, what is G(F(x))?
tiny-mole [99]

Answer:

g(f(x)) = (x + 6)^4.

Step-by-step explanation:

We replace the in x^4 ( ie g(x)) by  (x + 6) ( ie f(x)):

g(f(x)) = (x + 6)^4

8 0
3 years ago
An urn contains two blue balls (denoted B1 and B2) and three white balls (denoted W1, W2, and W3). One ball is drawn from the ur
tatuchka [14]

Answer:

(a)10 Outcomes

(b)\dfrac{2}{5}

Step-by-step explanation:

An urn contains two blue balls (denoted B_1 \:and\: B_2) and three white balls (denoted W_1, W_2 \:and\: W_3).

In the selection, a ball is picked and replaced.

The possible outcomes of the experiment are:

B_1B_1,B_1B_2,B_1W_1,B_1W_2,B_1W_3\\B_2B_1,B_2B_2,B_2W_1,B_2W_2,B_2W_3\\W_1B_1,W_1B_2,W_1W_1,W_1W_2,W_1W_3\\W_2B_1,W_2B_2,W_2W_1,W_2W_2,W_2W_3\\W_3B_1,W_3B_2,W_3W_1,W_3W_2,W_3W_3

(a)If the first ball drawn is blue. the outcomes are:

B_1B_1,B_1B_2,B_1W_1,B_1W_2,B_1W_3\\B_2B_1,B_2B_2,B_2W_1,B_2W_2,B_2W_3

There are 10 outcomes if the first ball drawn is blue.

Probability that the first ball drawn is blue

=\dfrac{10}{25}\\ =\dfrac{2}{5}

4 0
4 years ago
Veronica will earn 9 per hour when she babysits for the Johnson family and will earn 11 per hour when she babysits for the Lopez
victus00 [196]

Answer:

Step-by-step explanation:

6 0
4 years ago
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