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2 years ago

PLEASE NEED HELP ASAP!! URGENT

Mathematics

2 answers:

erica [24]2 years ago

8 0

12+6x5= 45 because are of a trapezium is a+b/2x5 then x 45 by 16 = 720

Virty [35]2 years ago

5 0

Answer: 13.896 kg

<u>Step-by-step explanation:</u>

First, find the volume:

V = Length · width · height

$= (16)\bigg(\dfrac{6+12}{2}\bigg)(5)\\\\= (16)(9)(5)\\\\= 720$

Next, find the mass using the density formula $p = \dfrac{m}{V}$

mass (m) = density (p) · volume (v)

$m=\dfrac{19.3\ g}{cm^3}\times 720\ cm^3\\\\.\quad=13,896\ g$

Lastly, convert gram to kg by moving the decimal 3 places

13,896 g = 13.896 kg

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Robbie owns 15 % more movies than Rebecca, and Rebecca owns 10 % more movies than Joshua. If Rebecca owns 220 movies, how many m

sammy [17]

Step-by-step explanation:

Robbie=

15%/100%=220

=33 movies

Rebecca=

10%/100%=220

11 movies

Robbie have 33 movies and Joshua have 11 movies

Thank you

Hope it helps.

4 0

2 years ago

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yuradex [85]

Is there any answer choices? I believe it is 2/5

3 0

2 years ago

In f(x) = 2x2 − 8x − 10, the y-intercept is ? at ? and the x-intercepts are (-1, 0) and ? .

IgorLugansk [536]

<h2>1. y-intercept</h2>

$\boxed{(0,-10)}$

The quadratic function $f(x)=2x^22-8x-10$ represents a parabola. In fact, the graph of a quadratic function is a special type of U-shaped curve called a parabola. To find the y intercept, we set $x=0$ as follows:

$f(x)=2x^2-8x-10 \\ \\ If \ x=0 \rightarrow f(0)=-10 \\ \\ Then \ y-intercept: \\ \\ (0,-10)$

<h2>2. x-intercepts</h2>

$\boxed{(-1,0) \ and \ (5,0)}$

To find the other x-intercept, we must set $y=0$ as follows:

$f(x)=2x^2-8x-10 \\ \\ If \ y=0 \rightarrow 2x^2-8x-10=0 \\ \\ Using \ the \ quadratic \ formula: \\ \\ x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \therefore x=\frac{-(-8) \pm \sqrt{(-b)^2-4(2)(-10)}}{2(2)} \\ \\ \therefore x_{1}=-1 \ and \ x_{2}=5$

Therefore, the other x-intercept is $(5,0)$ . You can see both the y-intercept and the x-intercepts in the figure below.

8 0

2 years ago

I need help with this question

a_sh-v [17]

Okey go heard I'm help you

7 0

2 years ago

Eya is 5 years younger than 3 times Bills age. If Eya is 28 how old is Bill?

Sedaia [141]

Bill's age = x

Eya's age = 3x - 5

Eya is 28

28 = 3x - 5

28 (+5) = 3x -5 (+5)

33 = 3x

33/3 = 3x/3

x = 11

Bill = x

x = 11

Bill is 11 years old

hope this helps

4 0

3 years ago

*PLEASE NEED HELP ASAP!!* URGENT

PLEASE NEED HELP ASAP!! URGENT