Help with triangle proofs please

Answer:

Yes it is

Step-by-step explanation:

the point is covered by both equations

Answer:

1. (-1 infinity) and (- infinity, -5)

2. no

Step-by-step explanation:

Answer:

Domain: all real numbers

Step-by-step explanation:

This graph is a parabola. It's equation looks like it should be:

y = x^2 - 1

If you have a graph and are looking for the domain, you are determining where the graph exists. For what x's the graph exists. If you have the equation then the domain is what x's may be put into the equation. There are no limitations on what numbers can go into this equation so the domain is all real numbers.

There are several ways to write the domain is all real numbers, set builder notation and interval notation. But the main idea is that it is all real numbers.

Answer:

  3.6 hours

Step-by-step explanation:

Given that the number of milligrams of a drug in a patient's bloodstream after h hours is D(h) = 25e^(-0.4h), you want to know how much time elapses before the number reaches 6 milligrams.

You want to solve for h the equation ...

  D(h) = 6

  25e^(-0.4h) = 6 . . . . . . use the given expression for D(h)

  e^(-0.4h) = 6/25 . . . . . divide by 25

  -0.4h = ln(6/25) . . . . . take natural logs

  h = ln(6/25)/-0.4 ≈ 3.6

About 3.6 hours is the time needed between injections.

__

Additional comment

Because there are 6 mg remaining after the first injection when the second is given, it will take about 4.1 hours for the amount to decline to 6 mg after the second injection.

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Answer:

1/20

there are 20 students altogether

Step-by-step explanation:

um I'm not sure

Answer:

3/50

Step-by-step explanation:

First,convert the 0.8kg to grams

To do this, first state formula 1kg equals 1000g

Solution

1kg equals 1000g

thus,0.8kg equals 0.8 x 1000g which further equals 800g

Since both are now in grams,they can be divided without many problems so

48g/800g,using 8 to divide through & grams cancelling out

6/100,using 2 to divide through finally becomes

3/50

The central metaphor which is presented in six degrees of separation is:

This refers to the figure of speech which makes use of comparison to show the similarity between two different things.

With this in mind and from the concept of six degrees of separation, we can see that it is based on the theory that people are about six or fewer connections away from each other.

Read more about metaphor here:
https://brainly.com/question/9418370

Answer:

Step-by-step explanation: x + 1 = 9x - 3

x + 1 = 9x - 3

(minus x from both sides)

1 = 8x -3

(add 3 to both sides)

4 = 8x

(flip the equation)

8x = 4

(divide both sides by 8)

x = 4/8

x = 1/2 or 0.5

Step-by-step explanation:

hope it's helpful

thanks

Answer: it would be y=2.5x*40

Step-by-step explanation:

Answer:

for miles lets use (m) symbol

earnings =(m÷2.5)×40

Step-by-step explanation:

for example

Darnell has run 20 miles

earnings =( 20÷2.5)×40 =8×40= $320

Answer:

6

Step-by-step explanation:

I assume you want the answer as soon as possible so I won't leave an explanation, but comment if you need help or have any questions! :D

Answer:

a) [tex]\sf 3\frac{3}{5}[/tex]    b) [tex]\sf \frac{1}{4}[/tex]    c) [tex]\sf \frac{1}{2}[/tex]    d) [tex]\sf 8\frac{1}{3}[/tex]

Step-by-step explanation:

a)

[tex]\sf 1 \frac{1}{5} * 3[/tex]

[tex]\sf \frac{6}{5} * 3[/tex]

[tex]\sf \frac{18}{5}[/tex]

[tex]\sf 3\frac{3}{5}[/tex]

b)

[tex]\sf 2 \frac{1}{4} *\frac{1}{9}[/tex]

[tex]\sf \frac{9}{4} *\frac{1}{9}[/tex]

[tex]\sf \frac{1}{4}[/tex]

c)

[tex]\sf \frac{1}{3} * 1\frac{1}{2}[/tex]

[tex]\sf \frac{1}{3} * \frac{3}{2}[/tex]

[tex]\sf \frac{1}{2}[/tex]

d)

[tex]\sf 2 \frac{1}{2} * 3 \frac{1}{3}[/tex]

[tex]\sf \frac{5}{2} * \frac{10}{3}[/tex]

[tex]\sf {5} * \frac{5}{3}[/tex]

[tex]\sf \frac{25}{3}[/tex]

[tex]\sf 8\frac{1}{3}[/tex]

Answer:

1. 18/5

2. 1/4

3. 1/2

4. 108 1/2

Step-by-step explanation:

Change the mixed number to an improper fraction. Multiply the numerators (top number). Multiply the denominators. Then Simplify, if needed.

Answer:

it is a whole number there's something wrong in the question

Step-by-step explanation:

Answer:

I also occupy it they pass it to me

Answer:

no, they are not similar

the triangle above is an isosceles triangle, meaning two sides are equal which also means the two angles below are both 55 since one given angle is 55 the other is 55 as well

in the other triangle we are given a different angle, considering this angle is the third unknown angle in the other triangle we will use this to find out if the sum of this angle and the other two 55 degree angles will equal 180 degrees

(sum of interior angles in a triangle is 180)

55 + 55 + 65 = 180?

175 ≠ 180

175 degrees is not equal to 180 degrees so therefore they are not similar.

Answer:

would multiply everything by the common denominator of 4

-3/4m - 1/2 = 2 + 1/4m....multiply everything by 4 and u get :

-3m - 2 = 8 + m

that will get rid of the fractions....but u could multiply by -4 ...giving u :

3m + 2 = -8 - m

Step-by-step explanation:

Answer:

654,255

Step-by-step explanation:

2935per year × 200 years = 587,000

597,000 + 67,255 = 654,255

On a line chart

years would be x axis

population would be y axix

Form two dots from

(2000, 67,255)

(2200, 654,255)

Connect

[tex]\\ \rm\bull\rightarrowtail y=(1x^2)+3(x)[/tex]

[tex]\\ \rm\bull\rightarrowtail y=1(-6)^2+3(-6)[/tex]

[tex]\\ \rm\bull\rightarrowtail y=1(36)+(-18)[/tex]

Note the rule

[tex]\\ \rm\bull\rightarrowtail y=36-18[/tex]

[tex]\\ \rm\bull\rightarrowtail y=18[/tex]

Answer:

36     -18

18

Step-by-step explanation:

This is slightly confusing, since the question says "find the y coordinate if x = -4" yet underneath if appears they want x = -6 !

If x = -6

Substitute -6 into the equation in place of x

⇒ y = 1 × (-6)² + 3(-6)

Apply the rule (-a)² = a²  and  a(-b) = -ab:

⇒ y = 1 × (6)² + -3×6

⇒ y = 1 × 36 + -18

Using order of operations, carry out the multiplication first:

⇒ y = 36 + -18

Then the addition (subtraction)

⇒ y = 36 - 18

⇒ y = 18

Answer:

The radius is 6 1/6

Step-by-step explanation:

The radius is half of the diameter and 12 1/3 divided by 2 = 6 1/6

Answer:

6 1/6 took da test

Step-by-step explanation:

The statement for geometric model using algebra tiles represents the factorization is the statement number 2.

Algebra tiles used to represent the algebraic expression in the table form. The shape of algebra tile is square and rectangle, in which the variables represented.

The given polynomial equation in the problem is,

[tex]x^2 -5x+6[/tex]

In the above polynomial, the highest power of variable is 2. Thus, it is a quadratic equation.The image of the algebra tile for the given polynomial attached below.

The statement which satisfy the polynomial and its algebra tile is,

An algebra tile configuration.

Thus, the statement for geometric model using algebra tiles represents the factorization is the statement number 2.

Learn more about the algebra tile here;

https://brainly.com/question/4407619

Answer: Graph two <3

Step-by-step explanation:

The solution to the trigonometric expression is given by [tex]\frac{tan(-\frac{2\pi}{3}) }{sin(\frac{7\pi}{4}) } -sec(-\frac{\pi}{2}) =-\sqrt{\frac{3}{2} }[/tex]

An equation is an expression used to show the relationship between two or more variables and numbers. Trigonometric functions are specific functions of angles. Examples are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc).

Given the equation:

[tex]\frac{tan(-\frac{2\pi}{3}) }{sin(\frac{7\pi}{4}) } -sec(-\frac{\pi}{2} )\\\\tan(-\frac{2\pi}{3})=\sqrt{3} \\\\tan(\frac{7\pi}{4})=-\sqrt{2} \\\\tan(-\frac{\pi}{2})=0\\\\\frac{tan(-\frac{2\pi}{3}) }{sin(\frac{7\pi}{4}) } -sec(-\frac{\pi}{2} )=\frac{\sqrt{3} }{-\sqrt{2} }=-\sqrt{\frac{3}{2} }[/tex]

The solution to the equation is [tex]\frac{tan(-\frac{2\pi}{3}) }{sin(\frac{7\pi}{4}) } -sec(-\frac{\pi}{2}) =-\sqrt{\frac{3}{2} }[/tex]

Find out more on equation at: https://brainly.com/question/2972832

Answer:

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

This question is pretty simple. You already know the value of x, we substitute what x equals and find the number 2 cubed.

2^3 = ?

2x2x2 = 8

Answer:(-5.6, -1.4)

Step-by-step explanation:

Answer:

The first one is arithmetic and the second one is geometric.

Step-by-step explanation:

Arithmetic is basically like skip counting. 1 time 7 is 7, two times 7 is 14, etc...

Geometric is anything all the numbers added to get a total of 360. The next two terms for the first one is 42 and 49.