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4 years ago

The inequality for the graph and please answer quickly

Mathematics

1 answer:

Marizza181 [45]4 years ago

3 0

Answer:

x ≥ 1

Step-by-step explanation:

The circle is over 1
The circle is closed (filled in), which means it will be either ≤ or ≥.
The arrow is pointing right, so it's ≥.
The number can be represented by x
Put it together: x ≥ 1

I hope this helps!

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Given m ||n, find the value of x. + (8x-7) m (9X-28)

Korvikt [17]

Answer:

x = 21

General Formulas and Concepts:

Geometry

Corresponding Angles - Angles that are congruent to each other and occur with parallel lines

Step-by-step explanation:

Step 1: Identify

We see that the measures given are Corresponding Angles

Step 2: Solve for x

Set up equation: 8x - 7 = 9x - 28
Subtract 8x on both sides: -7 = x - 28
Add 28 on both sides: 21 = x
Rewrite: x = 21

5 0

3 years ago

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A 200-liter tank initially full of water develops a leak at the bottom. Given that 20% of the water leaks out in the first 5 min

Leya [2.2K]

Answer:

127.53 liters left after 10 minutes

Step-by-step explanation:

Let

$A \to Amount$

$t \to time$

Given

$A(0) = 200$ --- initial

$A(5) = 200 * (1 - 20\%) = 160$ --- the amount left, after 5 minutes

Required

$A(10)$ --- amount left after 5 minutes

To do this, we make use of:

$A(t) = A(0) * e^{kt}$

$A(5) = 160$ implies that:

$160 = 200 * e^{k*5}$

Divide both sides by 200

$0.80 = e^{k*5}$

Take natural logarithm of both sides

$\ln(0.80) = \ln(e^{k*5})$

$\ln(0.80) = \ln(e^{5k})$

$\ln(0.80) = 5k\ln(e)$

So, we have:

$-0.223 = 5k$

Divide by 5

$k = -0.045$

So, the function is:

$A(t) = A(0) * e^{kt}$

$A(t) = 200 * e^{-0.045t}$

The amount after 10 minutes is:

$A(10) = 200 * e^{-0.045*10}$

$A(10) = 200 * e^{-0.45}$

$A(10) = 127.53$

3 0

3 years ago

On day 1, i'm going to run 12 laps at the fitrec. then, for each of the next six days, i'm going to roll a six-sided die, and th

sveticcg [70]

Short answer: 36.
This is a combination/permutation problem.
To put it simple, a die has 6 sides, there are 7 days but 1 is already determined (12 laps).
So if we multiple the options (sides on a die) × the number of days (6) we get:
6 × 6 = 36 possible outcomes.

To show this we can get
12, 13, 14, 15, 16, 17, 18
12, 13, 14, 15, 16, 17, 19
12, 13, 14, 15, 16, 17, 20
... all the way to
12, 18, 24, 30, 36, 42, 48

5 0

4 years ago

How do I find the y coordinates of the vertex of a parabola?

Bess [88]

Answer:

My example:

1. Get the equation in the form y = ax4 + bx + c

2. Calculate -b / 4a. This is the x coordinate of the vertex

3. To find the y coordinate of the vertex, simply plug the value -b / 4a into the equation for x and solve for y.

Step-by-step explanation:

y=2x^2 -16x +30

vertex: ( 4, -2)

Focus: (4, -15/8)

Axis of symmetry: x = 4

Directrix: y = -17/8

6 0

3 years ago

I dunno how to do this im just hoping people know the answer

9966 [12]

Answer:

its always wrong

Step-by-step explanation:

any variable always has a holder of 1

so 01b doesnt equal 4

6 0

4 years ago

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