3 years ago

MATH QUESTION HELPPPPP MEHHHHHHHH 1 PIC INCLUDEDDDDD...

Mathematics

1 answer:

Colt1911 [192]3 years ago

8 0

Answer:

I think its C

Step-by-step explanation:

sorry if it is wrong

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Find the vector equation for the line of intersection of the planes 5x+3y−2z=−45x+3y−2z=−4 and 5x+5z=0

olga_2 [115]

$5x+5z=0\implies x+z=0\implies z=-x$

$5x+3y-2z=7x+3y-2x-2z=7x+3y-2=-4\implies7x+3y=-2$

Letting $x=t$ and $z=-t$ , we have

$7t+3y=-2\implies y=-\dfrac73t-\dfrac23$

so the intersection is given by

$\mathbf r(t)=\left(t,-\dfrac73t-\dfrac23,-t\right)$

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3 years ago

Which number line shows the solution to the inequality -2x-3> -11

Brut [27]

Answer:

-4

Step-by-step explanation:

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2 years ago

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Y=__X+__ ??? plz answerrr

Paul [167]

Answer:

y=3 over -6x + 5

Step-by-step explanation:

put the 3 and -6 in a fraction

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3 years ago

The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must

love history [14]

H = x, L = 1.5 x;
L + W + H = 6
x + 1.5 x + W = 6
W = 6 - 2.5 x
Dimensions of the camera in terms of x:
x, 1.5 x, 6 - 2.5 x.
V = L x W x H
V = x * 1.5 x * ( 6 - 2.5 x ) = 9 x² - 3.75 x³
V ` = 18 x - 11.25 x² ( V max is when V` = 0 )
18 x - 11.25 x² = 0
x ( 18 - 11.25 x ) = 0
11.25 x = 18
x = 18 : 11.25
x = 1.6
The dimensions are:
L = 2.4
W = 2.0
H = 1.6

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3 years ago

Suppose an airport metal detector catches a person with metal 99% of the time. That is, it misses detecting a person with metal

frozen [14]

Answer:

The probability of missing the first metal-carrying person is P(x≤50)=0.395

Step-by-step explanation:

We define as success to: missing metal carrying detection.

p=0.01

P(x)= $\frac{n!}{x!(n-x)!} p^x(1-p)^{n-x}$

We look for the probability when all metal carring people is detected so x=0

P(x≤50)=1-P(x=0)= $1 - 0.99^{50}$ =0.395

6 0

3 years ago