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3 years ago

Which triangle side lengths form a right triangle? Choose all that apply.

Mathematics

1 answer:

spin [16.1K]3 years ago

8 0

Answer:

all

Step-by-step explanation:

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What is the value of m2-2mn+n2for m=-2and n=4

BartSMP [9]

Answer:

Step-by-step explanation:

m2 - 2mn + n2 ,m = -2 and n = 4

= -2( 2 ) - 2( -2 )( 4 ) + ( -2 )2

= -4 + 4( 4 ) - 4

= -4 + 16 - 4

= 8

3 0

3 years ago

The number of bacteria in a refrigerated food product is given by N ( T ) = 22 T 2 − 123 T + 40 , 6 < T < 36 , where T is

antoniya [11.8K]

Answer:

$N(T(t)) = 1408t^2 - 385.6t - 105.52$

Time for bacteria count reaching 8019: t = 2.543 hours

Step-by-step explanation:

To find the composite function N(T(t)), we just need to use the value of T(t) for each T in the function N(T). So we have that:

$N(T(t)) = 22 * (8t + 1.7)^2 - 123 * (8t + 1.7) + 40$

$N(T(t)) = 22 * (64t^2 + 27.2t + 2.89) - 984t - 209.1 + 40$

$N(T(t)) = 1408t^2 + 598.4t + 63.58 - 984t - 169.1$

$N(T(t)) = 1408t^2 - 385.6t - 105.52$

Now, to find the time when the bacteria count reaches 8019, we just need to use N(T(t)) = 8019 and then find the value of t:

$8019 = 1408t^2 - 385.6t - 105.52$

$1408t^2 - 385.6t - 8124.52 = 0$

Solving this quadratic equation, we have that t = 2.543 hours, so that is the time needed to the bacteria count reaching 8019.

4 0

4 years ago

Which of the following is a solution of x2 + 5x = −2? (2 points) 5 plus or minus the square root of 33 divided by two. 5 plus or

Delicious77 [7]

The easiest way it to solve it.
${x}^{2} + 5x + 2 = 0$
You have
$\rho = 25 - 4 \times 1 \times 2 = 17$
Thus
$x = \frac{ - 5 \pm \sqrt{17} }{2}$

5 0

3 years ago

Read 2 more answers

⎯⎯⎯⎯⎯⎯√square root of 200, 14, 14 over<br> least to greastes

mihalych1998 [28]

it is 3.742, 3.742, 14.142

3 0

3 years ago

BRAIN WARM UP MATHS?

Mashutka [201]

We can make 64 different equations using the power of ten.

<h3>What is the power of a number?</h3>

The power of a number identifies how many times that particular number is multiplied by itself.

Here, let us assume that the different equations = x

Using a power of 10, we have 10x making a total of 640.

10x = 640

Divide both sides by 10

10x/10 = 640/10

x = 64

Therefore, we can conclude that we can make 64 different equations using the power of ten.

Learn more about the power of a number here:

brainly.com/question/7447978

#SPJ1

4 0

2 years ago