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2 years ago

Can someone help me! Please show pictures of the number line thank you!

Mathematics

2 answers:

qwelly [4]2 years ago

7 0

The graph is an open circle at -1 with the line going towards the positive numbers.

Stells [14]2 years ago

6 0

First, we have to make $w$ the subject of the equation:

$w - 0.9 > -2.1\\w > -2.1 + 0.9\\w > -1.2$

This shows that $w$ is less than but not equal to $-1.2$ . So we are going to use an arrow that has a non-shaded circle. Since the symbol is the greater than symbol, or >, the arrow will point to the right. Thus, the arrow we choose will be the last arrow.

Now since we are comparing $w$ with $-1.2$ , we place the arrow above the $-1.2$ point. That's how he place the arrow in the number line.

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What is the reason for each step in the solution of the equation? 18−2x=4x

Reika [66]

In order to solve an equation for a certain variable, you should isolate that variable on one side of the equation and leave all the other terms on the other side on the equation.
The, you solve to get the value of the variable.

The equation we have here is:
18−2x=4x
First, we need to isolate the terms containing the "x" on one side of the equation. To do this, we will add 2x to both sides of the equation:
18−2x+2x=4x+2x
18 = 6x
Now, we need to get the value of the "x". To do this, we will simply divide both sides of the equation by 6:
18/6 = 6x/6
3 = x .............> This is the solution of the equation

3 0

3 years ago

Read 2 more answers

If cosθ=2/3 find cscθ using identities. This is in quad. 1.

laiz [17]

Step-by-step explanation:

cos θ = 2/3

$\quad \twoheadrightarrow\sf {cos \; \theta = \dfrac{Base}{Hypotenuse} } \\$

Hence, base = 2 units and hypotenuse = 3 units.

$\quad \twoheadrightarrow\sf { H^2 = B^2 + P^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = H^2 - B^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = (3)^2 - (2)^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = 9- 4} \\$

$\quad \twoheadrightarrow\bf { P = \sqrt{5}} \\$

Now, we know that :

$\quad \twoheadrightarrow\sf {cosec \; \theta = \dfrac{Hypotenuse}{Perpendicular} } \\$

$\quad \twoheadrightarrow\bf{cosec \; \theta = \dfrac{3}{\sqrt{5}} } \\$

Therefore, the required answer is 3/√5.

4 0

2 years ago

A lighthouse is located on an island 200 feet from the shore of the mainland as

Deffense [45]

Answer: Approximately d = 208.72

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Work Shown:

Make sure your calculator is in radian mode

A quick way to check is to compute cos(pi) and you should get -1

cos(angle) = adjacent/hypotenuse

cos(x) = 200/d

cos(0.29) = 200/d

d*cos(0.29) = 200

d = 200/cos(0.29)

d = 208.715135166392 which is approximate

d = 208.72

I rounded to two decimal places since x is rounded in that manner as well. Round however else you need if your teacher instructs.

4 0

2 years ago

A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits

eimsori [14]

area is side by side.
so do 6.25*6.25 and that equals 39.0625

5 0

2 years ago

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myrzilka [38]

The correct order of the radius $\sqrt{3} /11 \ , \pi /24 , 3/25 , 9/100$ .

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A set of data is said to be in descending order, often referred to as decreasing order, when it is arranged from highest to lowest or largest to smallest.

The same concepts apply regardless of the type of information you're working with, whether it's letters, dates, sizes of things or any other group of information like numbers or dates.

For instance, arranging a group of numbers in descending order means doing so from biggest to smallest value.

Ascending order, often known as ascending order of importance, is the exact opposite of declining order.

The order of the items is lowest to highest value. The lowest value is placed first in the order, while the highest value is placed last.

The value of $\sqrt{3}$ = 1.732