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3 years ago

What is the value of the expression

Mathematics

1 answer:

hoa [83]3 years ago

4 0

4(2+y)2y-z when x=2 and y=4

4(2+4)2×4-z

4(6)(8-z)

(4×6)(-8z)

24-8z

z=24÷8

8/3

Therefore 8/3 is last answer .

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Can you answer this and explain it please! for 100 points

pashok25 [27]

Answer:

D) -12

Step-by-step explanation:

$3(x-4)+(2-x)-x^2$

Replace X With 5

$3(5-4)+(2)(5)-5^2$

$=-12$

I Hope This Helps

Please Mark Me As Brainliest :)

6 0

2 years ago

What is the distance between the points (2, 8) and (-7, -4) in the coordinate plane?

aleksandr82 [10.1K]

This is the possible answer and if my answer is wrong then the formula i used is absolutly right so you may proceed.

3 0

3 years ago

How many terms are in the expression 2.8b?

balandron [24]

The answer to your question is 1

8 0

4 years ago

Step by step solution help me pls

Ilia_Sergeevich [38]

Step-by-step explanation:

Recall that

$1 + \tan^2 x = \sec^2 x$

and

$\dfrac{d}{dx}(\tan x) = \sec^2 x$

so that

$\displaystyle \int \tan^2 x = \int (\sec^2 x - 1)dx$

$\:\:\:\:\:\:\:\:\:=\int \sec^2 xdx - \int dx$

$\:\:\:\:\:\:\:\:\:=\tan x - x + C$

where C is the constant of integration.

6 0

3 years ago

Which exponential function goes through the points (1,8) and (4,64)?

vova2212 [387]

Plug in (4,64) into each answer choice.

A) 4(2)^x
64 =4(2)^4
64 = 4(16)
64 = 64

Answer choice A is correct.

B) f(x) = 2(4)^x
64 = 2(4)^4
64 = 2(256)
64 ≠ 512

Answer choice B is incorrect.

C) f(x) = 4(2)^{-x}
64 = 4(2)^{-4}
64 = 4(-0.0625)
64 ≠ 0.25

Answer choice C is incorrect.

D) f(x) = 2(4)^{-x}
64 = 2(4)^{-4}
64 = 2(0.00390625)
64 ≠ 0.0078125

Answer choice D is incorrect.

Your answer is B<span>) f(x)=2(4)^x</span>

4 0

3 years ago