All categories

3 years ago

PLEASE HELP ASAP FOR MATH!!!!!

Mathematics

2 answers:

san4es73 [151]3 years ago

8 0

Hi !

Answer : -1.8

Difficult to explain here, so I put a graph as explanation and prove.

\dfrac{1}{-1.8+2}=\dfrac{1}{0.2}=5\\\\(-1.8)^2+2=3.24+2=5.24

Lady bird [3.3K]3 years ago

6 0

Hi !

Answer : -1.8

<em>Difficult to explain here, so I put a graph as explanation and prove.</em>

$\dfrac{1}{-1.8+2}=\dfrac{1}{0.2}=5\\\\(-1.8)^2+2=3.24+2=5.24$

You might be interested in

Please help me someone

Aneli [31]

There is a formula for the area of a parallelogram which is bxh
(base x height)

Remember the height is always straight so do not use the 12 value.

21x9=189

Hope this helped!

7 0

3 years ago

Using a linear approximation, estimate f(2.1), given that f(2) = 5 and f'(x) = √3x-1.

algol [13]

Answer:

$f\left( {2.1} \right) \approx 5.22360$ .

Step-by-step explanation:

The linear approximation is given by the equation

${f\left( x \right) \approx L\left( x \right) }={ f\left( a \right) + f^\prime\left( a \right)\left( {x - a} \right).}$

Linear approximation is a good way to approximate values of $f(x)$ as long as you stay close to the point $x= a$ , but the farther you get from $x=a$ , the worse your approximation.

We know that,

$a=2\\f(2) = 5\\f'(x) = \sqrt{3x-1}$

Next, we need to plug in the known values and calculate the value of $f(2.1)$ :

${L\left( x \right) = f\left( 2 \right) + f^\prime\left( 2 \right)\left( {x - 2} \right) }=5+\sqrt{3(2)-1}(x-2) =5+\sqrt{5}(x-2)$

Then

$f\left( {2.1} \right) \approx 5+\sqrt{5}(2.1-2)\approx5.22360$ .

6 0

4 years ago

Adult tickets to a play cost $2.25 each and student tickets cost $1.25 each. Suppose there are twice as many student tickets sol

Ganezh [65]

9514 1404 393

Answer:

300 adult tickets
600 student tickets

Step-by-step explanation:

We can group tickets into a group that has 2 student tickets and 1 adult ticket for a price of 2($1.25) +2.25) = $4.75. The number of these groups sold is ...

$1425/4.75 = 300

300 adult tickets and 600 student tickets were sold.

8 0

3 years ago

It costs $2.50 per square meter to build a deck. how much will it cost to build a deck?

natta225 [31]

Answer:

The drawing is a little hard to see.

Step-by-step explanation:

Basically you just multiply 2.50 by the other factor.

5 0

3 years ago

Find the limits of integration ly, uy, lx, ux, lz, uz (some of which will involve variables x,y,z) so that ∫uz lz∫uxlx∫uyly????y

SSSSS [86.1K]

Answer:

X from 0 to 21

Y from 0 to 7

Z from 0 to 3

Step-by-step explanation:

Since we are being asked by the integration limits in first octant (positive x, positive y and positive z) we need to know where does the plane intersect this axes. For this we have:

for x=0 and y=0

7z=21

z=3

for x=0 and z=0

3y=21

y=7

for z=0 and y=0

x=21

This means that the integration limits are:

X from 0 to 21

Y from 0 to 7

Z from 0 to 3

8 0

4 years ago