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3 years ago

NEED HELP!! 10 POINTS!!

Mathematics

1 answer:

Evgen [1.6K]3 years ago

6 0

I know ab and dc are equal, so I set them equal:

4q-8=q+4

3q=12

q=4

we aren't done, we need to find the total so we plug it back in:

4(4)-8

16-8= 8

8 is the answer

:)

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The graphs below have the same shape. What is the equation of the blue graph?

Anna11 [10]

Answer:

My best guess will have to be B

Step-by-step explanation:

i remember this question

6 0

2 years ago

a carpenter has been asked to build an open box with a sqaure base. the sides of the box will cost $3 per m^2 and the base will

slamgirl [31]

<h2>Dimension of box is 2 m x 2 m x 1.33 m</h2>

Step-by-step explanation:

Let a be base side and h be the height.

Volume of box, V = a²h

The sides of the box will cost $3 per m² and the base will cost $4 per m². Cost for making is $48.

That is

4a² + 3 x 4 x a x h = 48

4a² + 12 a x h = 48

a² + 3 ah = 12

$h=\frac{12-a^2}{3a}$

So volume is

$V=a^2\times \frac{12-a^2}{3a}=4a-\frac{a^3}{3}$

At maximum volume we have derivative is zero,

$dV=4da-3\times \frac{a^2}{3}da\\\\0=4-a^2\\\\a=\pm 2$

Negative side is not possible, hence side of square base is 2m.

Substituting in a² + 3 ah = 12

2² + 3 x 2 x h = 12

h = 1.33 m

Dimension of box is 2 m x 2 m x 1.33 m

5 0

3 years ago

Solve 29 < m^2+ 9/2<br> < 45

german

Answer:29m^2+

405/2

Step-by-step explanation:

4 0

2 years ago

1.64 as mixed number in simplest form

Anettt [7]

Answer:

$\large\boxed{1.64=1\dfrac{16}{25}}$

Step-by-step explanation:

$1.64=1+0.\underbrace{64}_2=1+\dfrac{64}{1\underbrace{00}_2}=1\dfrac{64}{100}=1\dfrac{64:4}{100:4}=1\dfrac{16}{25}$

3 0

3 years ago

2.1.28

gulaghasi [49]

Answer:

Binomial, degree two

Step-by-step explanation:

It has only two x terms and the degree is determined by either the degree or power of the first variable or the highest power/degree in the whole expression

8 0

3 years ago