All categories

3 years ago

PLEASE HELP ME WITH THESE TWO QUESTIONS PLEASE

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

5 0

Answer: the first one is D and the second one is B

Step-by-step explanation:

Sedaia [141]3 years ago

3 0

Answer:

The first one is D and the second one is B

Step-by-step explanation:

Hoped this help :)

You might be interested in

Destiny is five more than twice the age of her nephew Sam. The sum of their age is 23

ipn [44]

Answer:

Sam is 6, Destiny is 17

Step-by-step explanation:

(2xS)+5=D

D+S=23

4 0

3 years ago

1/3 = x/12 what is x?

marishachu [46]

Answer:

x = 4

Step-by-step explanation:

Given

$\frac{1}{3}$ = $\frac{x}{12}$ ( cross- multiply )

3x = 12 ( divide both sides by 3 )

x = 4

5 0

3 years ago

Read 2 more answers

Consider the surface f (x comma y comma z )f(x,y,z)equals=negative 2 x squared plus 2 y squared minus 3 z squared plus 3 equals

trapecia [35]

Answer:

a) (8,8,-6)

b) 4x+4y+3z = -3

Step-by-step explanation:

The surface is given by the equation

f(x,y,z) = 0 where

$f(x,y,z)=-2x^2+2y^2-3z^2+3$

The gradient of this function is the vector

$(\frac{\partial f}{\partial x},\frac{\partial f}{\partial y},\frac{\partial f}{\partial z})=(-4x,4y,-6z)$

If we evaluate it in the point P = (-2,2,1) we obtain the point

(8,8,-6)

The vectors with their tails at P are of the form

(-2,2,1)-(x,y,z) = (-2-x, 2-y, 1-z)

as they must be orthogonal to the gradient, they must be orthogonal to the vector (8,8,6) so their inner product is 0

$(-2-x,2-y,1-z)\cdot(8,8,6)=0\Rightarrow -16-8x+16-8y+6-6z=0\Rightarrow 4x+4y+3z=-3$

and the equation of the desired plane is

4x+4y+3z = -3

3 0

3 years ago

Students applying to law school must take the LSAT exam. Since competition for acceptance is stiff, many students take a course

Anestetic [448]

Answer:

a) Dependent

b) H0: µd = 0

Ha: µd > 0

c) Stat --> Basic Statistics ----> Paired t. then select samples 1 , 2 to get the required output

d) Not enough data

Step-by-step explanation:

Using values found in MINITAB 19

a) The samples are dependent and this is because the title of the test is the same ( i.e. A group of students given the LSAT )

b) Appropriate hypothesis

H0: µd = 0

Ha: µd > 0

c) The Minitab procedure to be used to test the hypothesis is

click on Stat --> Basic Statistics ----> Paired t. then select samples 1 , 2 to get the required output

d) Not enough data to create a probability plot

4 0

2 years ago

The sum of four consecutive integers is 342. What is the third term in the sequence

Fofino [41]

Answer:

Step-by-step explanation:

let four consecutive integers: n , n+1 , n+2 , n+3

n + n+1 + n+2 + n+3 = 342

4n + 6 = 342

4n + 6 - 6 = 342 - 6

4n = 336

divid by : 4

n = 84

but the third term is : n +2 so : 84+2 = 86

4 0

3 years ago