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2 years ago

Answer my math question I asked so many times I lost most of points

Mathematics

2 answers:

maks197457 [2]2 years ago

7 0

Answer:

f(x) = (x+1)^2 - 9

Evgesh-ka [11]2 years ago

7 0

Answer:

A = 1

B = 2

C = -8

Y intercept is (0,8)

The line of symmetry is x = -1

Min/max is (-1, -9)

Opens up

Domain is (-infinity, infinity)

Range is (-9, infinity)

The vertex is (-1,-9)

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If the length of each side of an equilateral triangle were increased by 50 percent, what would be the percent increase in the ar

Shkiper50 [21]

Answer:

The area increase by 225%

Step-by-step explanation:

attachment of a triangle

The area of a triangle equilateral is calculated with the next formula:

A= $\frac{a*h}{2}$

$h^{2} +(\frac{a}{2})^{2}$ = $a^{2}$

$h^{2} = a^{2} - \frac{a^{2} }{4}$ = $\frac{a^{2} }{4}$ *3

h= $\sqrt{\frac{a^{2}*3 }{4} }$

h= $\frac{\sqrt{3}*a }{2}$

replacing in the A equation:

A= $\frac{a*\sqrt{3}*a }{2*2}$ 

A= $\frac{\sqrt{3}*a^{2} }{4}$ 

Now each side increse by 50% ⇒ a=1.5a

A= $\frac{\sqrt{3}*(1.5a)^{2} }{4}$ 

A= $\frac{\sqrt{3}*a^{2}* 2.25 }{4}$ 

A=2.25 * $\frac{\sqrt{3}*a^{2} }{4}$ 

It means that the area incrase by 225%

6 0

3 years ago

The triangle shown below has an area of 16 units^2 Find x.

Oduvanchick [21]

Answer:

8 units squared

Step-by-step explanation:

Here's the formula of a triangle

base*height divided by 2

So, we know that the base is 4.

We have to work backwards.

16*2 is 32

32 divided by 4 is 8.

Now let's see

8*4 is 32 divided by 2 is 16!

Hope you understand :)

4 0

2 years ago

Read 2 more answers

I don't understand what I'm supposed to do here. I have a test on this tomorrow so if you explain how to do it that would be gre

VladimirAG [237]

Here is a little tip for this: The unit above cancels the unit below. So in this problem you are asked to convert pounds to ounce. So your equation will look like this.

ounce = 2.93 pounds $( \frac{16 ounces}{1 pounds} ) = 46.88$
Your ratio should involve the conversion factor. So 16 and 1 is involved canceling A and D. Then, Notice that you started with poubls. Then the ratio must have pounds at the bottom to cancel the units leaving ounces.

7 0

3 years ago

Please help with number 8 just real answers please

Semenov [28]

B because it makes the most sense to me

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3 years ago

What is the range of these wages £140 £525

ELEN [110]

140-525 would be the range

4 0

2 years ago