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2 years ago

Which is a solutiom (x-3)(x + 9)=-27?

Mathematics

2 answers:

Elis [28]2 years ago

7 0

The solution is x= 0,-6

saveliy_v [14]2 years ago

6 0

Answer:

x = 0, -6

Step-by-step explanation:

(0 - 3)(0 + 9) = (-3)(9) = -27

(-6 - 3)(-6 + 9) = (-9)(3) = -27

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Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o

tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is, $h=-8t^2+40t$ , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

$\frac{dh}{dt} =0$

Now the differentiating the equation with respect to time t, we get

$\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)$

$\frac{dh}{dt}=-16t+40$

For maximum height, $\frac{dh}{dt} =0$

So, $-16t+40=0$

$\Rightarrow 16t=40$

$\Rightarrow t=\frac{40}{16}$

$\Rightarrrow t = 2.5$

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0

2 years ago

Give me an example of an irrational number that is greater than 10

Pavel [41]

To find:

An irrational number that is greater than 10.

Solution:

Irritation number: It cannot be expression in the form of $\dfrac{p}{q}$ , where, $q\neq 0, p,q$ are integers.

For example: $\sqrt{2}\sqrt{3},\pi, 1.263689...,etc.$ .

We know that square of 10 is 100. So, square root of any prime number is an example of an irrational number that is greater than 10.

First prime number after 100 is 101.

Required irrational number $=\sqrt{101}$

Therefore, $\sqrt{101}$ is an irrational number that is greater than 10.

5 0

3 years ago

20 POINTS <br> Identify the type of transformation in the following graphic and describe the change.

o-na [289]

Answer:

Translation +6 Left

and maybe a slight dilation that makes it bigger.

Hope this helps!

6 0

3 years ago

Solve for x. Leave your answer in simplest radical form.

strojnjashka [21]

There are two Right angled triangles in the given figure, with two missing sides, let's name the other missing side be " y "

According to Pythagoras theorem,

$\boxed{ \large \boxed{h {}^{2} = {b}^{2} + p{}^{2} }}$

note :

p = perpendicular / opposite side
b = base / adjacent side
h = hypotenuse

let's solve for " y² " first ( square of other missing side )

$➢ \: \: {y}^{2} = {8}^{2} + 3 {}^{2}$

$➢ \: \: {y}^{2} = 64 + 9$

$➢ \: \: {y}^{2} = 73$

now let's solve for " x " , by using pythagorous theorem

$➢ \: \: {x}^{2} = {y}^{2} + {6}^{2}$

$➢ \: \: {x}^{2} = 73 + 36$

$➢ \: \:x {}^{2} = 109$

$➢ \: \: x = \sqrt{109}$

Approximate :

$➢ \: \: 10.44 \: \: units$

$\mathrm{✌TeeNForeveR✌}$

5 0

2 years ago

Anna has already run 6 miles on her own, and she expects to run 1 mile during each track practice. How many track practices woul

alisha [4.7K]

33 Track Practices should be correct

8 0

3 years ago

Read 2 more answers

Which is a solutiom (x-3)(x + 9)=-27?​

Which is a solutiom (x-3)(x + 9)=-27?