Ask question

Ask question

All categories

Citrus2011 [14]

4 years ago

13

How many seconds ,4:30-5:05

1 answer:

bixtya [17]4 years ago

3 0

35 sec
because 5:00-4:30=30
30+5=35

You might be interested in

What value would be placed in the space shown to create a perfect square trinomial?

charle [14.2K]

Answer:

1st option 9/4

Step-by-step explanation: Searched up the problem on brainly and this was the answer. Hope that helps

3 0

3 years ago

Math please help give u brainlist

RoseWind [281]

Answer:

C

Step-by-step explanation:

(0,-4) (-4, -3)

-3- -4 / -4 -0 = 1/-4 is the slope

so is C

7 0

3 years ago

Read 2 more answers

Whats is the anwser to twelve times twenty

balandron [24]

Answer:240

Step-by-step explanation:

120

× 12

------

240

5 0

3 years ago

Let $f(x) = 2x^2 + 3x - 9,$ $g(x) = 5x + 11,$ and $h(x) = -3x^2 + 1.$ Find $f(x) - g(x) + h(x).$

Viefleur [7K]

QUESTION 1

Given that:

$f(x)=2x^2+3x-9$ ,

$g(x)=5x+11$ ,

and

$h(x)=-3x^2+1$

Then;

$f(x)-g(x)+h(x)=2x^2+3x-9-(5x+11)+(-3x^2+1)$

$f(x)-g(x)+h(x)=2x^2+3x-9-5x-11-3x^2+1$

Group similar terms;

$f(x)-g(x)+h(x)=2x^2-3x^2+3x-5x-11-9+1$

Simplify;

$f(x)-g(x)+h(x)=-x^2-2x-19$

QUESTION 2

Given that;

$f(x)=4x-7$ .

$g(x)=(x+1)^2$

and

$s(x)=f(x)+g(x)$

Substitute the functions;

$s(x)=4x-7+(x+1)^2$

Substitute x=3

$s(3)=4(3)-7+(3+1)^2$

$s(3)=12-7+(4)^2$

$s(3)=5+16$

$s(3)=21$

QUESTION 3

Given:

$f(x)=3x+2$

$g(x)=x^2-5x-1$

$f(g(x))=f(x^2-5x-1)$

This implies that;

$f(g(x))=3(x^2-5x-1)+2$

Expand the parenthesis;

$f(g(x))=3x^2-15x-3+2$

$f(g(x))=3x^2-15x-1$

QUESTION 4

The given function is;

$f(x)=3(x-6)^2+1$

Let

$y=3(x-6)^2+1$

$\Rightarrow y-1=3(x-6)^2$

$\Rightarrow \frac{y-1}{3}=(x-6)^2$

$\Rightarrow \sqrt{\frac{y-1}{3}}=x-6$

$\Rightarrow x=6+\sqrt{\frac{y-1}{3}}$

The range is:

$\frac{y-1}{3}\ge0$

$y-1\ge0$

$y\ge1$

The interval notation is;

$[1,+\infty)$

6 0

4 years ago

If the cost of 100 copies is $3.10, how many copies can be made for $155?

Tatiana [17]

<em> Given that:</em> 100 copies = $3.10

<em>Find cost of 1 copy:</em>
1 copy = $3.10 ÷ 100 = $0.031

<em>Find the cost of 155 copies: </em>
155 copies = $0.031 x 155 = $4.81 (nearest hundredth)

Answer: $4.81

3 0

3 years ago