All categories

3 years ago

What is 9/10 - 2 3/4 i. the simplest form

Mathematics

2 answers:

Jlenok [28]3 years ago

8 0

−1.85 it says too short so ignore this ssssssndjbdbjddn

earnstyle [38]3 years ago

8 0

-1.85 i think q haha r order

You might be interested in

PLS HELP GIVING POINTS !! :))

disa [49]

It's the option D, the reflection doesn't change y coordinate

4 0

3 years ago

A 10 foot ladder is leaning against a wall. Call x the distance from the top of the ladder to the ground, and call y the distanc

liq [111]

$-5.3\:\text{ft/s}$

Step-by-step explanation:

We start by applying the Pythagorean theorem to the ladder, with its length L as the hypotenuse:

$L^2 = 100\:\text{ft}^2 = x^2 + y^2$

where x is the vertical distance from the top of the ladder to the ground and y is the horizontal distance from the bottom of the ladder to the wall. Taking the derivative of the above expression with respect to time, we get

$0 = 2x\dfrac{dx}{dt} + 2y\dfrac{dy}{dt}$

Solving for dx/dt, we get

$\dfrac{dx}{dt} = -\left(\dfrac{y}{x}\right)\dfrac{dy}{dt} = -\left(\dfrac{\sqrt{L^2 - x^2}}{x}\right)\dfrac{dy}{dt}$

We know that

$\dfrac{dy}{dt} = 4\:\text{ft/s}$

when x = 6 ft. So the rate at which the top of the ladder is going down is

$\dfrac{dx}{dt} = -\left(\dfrac{\sqrt{100\:\text{ft}^2 - (6\:\text{ft})^2}}{6\:\text{ft}}\right)(4\:\text{ft/s})$

$\:\:\:\:\:\:\:= -5.3\:\text{ft/s}$

The negative sign means that the distance x is decreasing as y is increasing.

5 0

3 years ago

A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91. What score must the s

solmaris [256]

In order to have average 80 score from 5 tests, student needs to have 400 points (80%*500=0.8*500=400)
So far he has 63+72+88+91= 314
400-314=86

He needs to get 86 points from the last test.
Since he is obviously getting better at tests, i think he'll manage :)

5 0

3 years ago

What is the vertex of the following graph and how to find it?

PilotLPTM [1.2K]

Answer:

the vertex is (1,2)

Step-by-step explanation:

the vertex is the point where the graph starts or opens from.

5 0

4 years ago

What is the value of x in the diagram below? 2 right triangles are stacked. The bottom triangle has a side length of 9 units and

ehidna [41]

Answer:

18 sqrt2/ sqrt3

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers