Mathematics High School

please help ........​

Please Help ........

Answers

Answer 1

Answer:

x = 8

Step-by-step explanation:

Two tangent segments to a circle from the same external point are congruent, thus

WP = WQ , that is

3x - 6 = x + 10 ( subtract x from both sides )

2x - 6 = 10 ( add 6 to both sides )

2x = 16 ( divide both sides by 2 )

x = 8

Related Questions

Select the correct answer. For what value of x is sin x = cos 19º, where 0°< x < 90°? OA. 38° ° O B. 71° OC. 26° O D. 19°​

Answers

Answer:

x = 71°

Option B is correct answer.

Step-by-step explanation:

We need to find for what value of x is [tex]sin\: x = cos 19^{\circ}[/tex], where 0°< x < 90°?

Solving:

[tex]sin\: x = cos\: 19^{\circ}\\Finding \:cos\: 19^{\circ}=0.94551\\Putting\:value:\\sin\:x=0.94551\\Now\:taking\:sin\:inverse\\x=sin^{-1}(0.94551)\\x=71^{\circ}[/tex]

So, we get x = 71°

Option B is correct answer.

What is the simplified expression for

-3x2 + 5x + 2 - 1 - 7x + 3x2

Answers

Answer:

-2x + 1

Step-by-step explanation:

1: -3x^2 + 5x + 2 - 1 - 7x + 3x^2

2: (-3x^2 + 3x^2) + (5x - 7x) + (2 - 1)

3: 0 - 2x + 1

4: -2x + 1

Step 1: Given equation

Step 2: Group the terms with similar exponents together

Step 3: Add the terms together

Step 4: Simplify completely

Mary uses 212 cups of lemonade concentrate to make 20 servings of lemonade. How many servings can Mary make using 1 gallon of lemonade concentrate? Please include an explanation :)

Answers

Answer:

number of servings = 1.5

Step-by-step explanation:

1 gallon = 16 Cups

cups of lemonade concentrate : lemonade servings

212 cups : 20 servings

How many servings can Mary make using 1 gallon of lemonade concentrate

Let

x = number of servings

cups of lemonade concentrate : lemonade servings

16 cups : x servings

Equate both ratios to get x

212 : 20 = 16 : x

212 / 20 = 16 / x

Cross product

212 * x = 20 * 16

212x = 320

x = 320 / 212

= 1.5094339622641

Approximately 1.5 servings

number of servings = 1.5

Name the triangles that are similar, if any of them are.

Answers

Answer:

I think A and B as they both have 27- degree angles

Step-by-step explanation:

I MAY BE WRONG SORRY

Explain or show - Describe how the graph of y=3x+1 is the same and different from the graph of y=3x+4. your reasoning YA a. How are they the same? b. How are they different? x c. Explain or show your reasoning: (Feel free to use graph paper if you'd like.)​

Answers

Answer:

a.) they have the same slope

b.) they have different y-intersepts

c.) in the slope-intercept formula y = mx + b, m is the slope and b is the y-intercept. since the two equations have the same slope but different y-intercepts we can infer they are parallel.

Find the range of the function f(x) = 4x – 1 for the domain {-1, 0, 1, 2, 3}.
A. {-5, -3, 0, 7, 11}
B. {-5, -4, -3, -2, -1}
C. {-11, -7, -3, 1,5}
D. {-5,-1, 3, 7, 11}

Answers

Answer:

D

Step-by-step explanation:

f(-1) = -5, so C is incorrect

f(0) = -1, so D is correct

It would be D. {-5,-1,3,7,11}

Hope this helps

Have a great day/night

How many times as great is 2x10^-8 is6x10^-3?

Answers

Answer:

300,000.

Step-by-step explanation:

6x10^-3 /  2x10^-8

= 3 x (10^(-3- (-8))

= 3 x 10^5

= 300,000

Let f(x)=e^x and g(x)=x+6. What is the domain and range of (GoF) (x)?

Answers

Answer:

Domain: Al real values

Range: All real numbers

Step-by-step explanation:

Let f(x)=e^x and g(x)=x+6. What is the domain and range of (GoF) (x)?

Given the functions'

f(x)=e^x and g(x)=x+6.

gof(x) = g(f(x))

g(f(x)) = g(e^x)

Substitute x with e^x in g(x) as shown:

g(f(x)) = e^x + 6

The domain s the input value of x for which the function exists. Accordinf to the expression, x exists on all real values. Since x exists on all real values, hence the output f(x) also exists on all real values

Which statement explains how the lines x − y = 2 and y = x + 1 are related?
1. They are parallel.
2. They are perpendicular.
3. They are the same line.
4. They are not related.

Answers

Answer:

4, they are not related

Step-by-step explanation:

x - y = 2 and y = x + 1

x - y = 2

subtract x

-y = 2 - x

divide by the negative

y = -2 + x or y = x - 2

they are not related

Answer:

The Answer Is A) they are parallel

Step-by-step explanation: i took the test and it was right i hope i helped!

?????????
????!???? ????

Answers

I think the answer is C
:):):):):):):):):):):):):):):):):):)

In a cookie jar containing 6 chocolate chip cookies, 8 wafer cookies and 10 double chocolate cookies, what is the probability that a person who isn't looking when they get a cookie will get a chocolate chip cookie?

Answers

Answer:

25% chance

Step-by-step explanation:

please help me please will give brainliest to anyone who is good ​

Answers

Answer:

D

Step-by-step explanation:

Number of days in school =  180-7 days missed = 173

Percent = Part/Whole x 100%

Percent = 173/180 x 100%

Percent = 96%

Solve for z.

Z/4 - 11= -9

Z=

Answers

Answer:

8

Step-by-step explanation:

z/4 - 11 = -9

z/4 = 2

z = 8

Fill in the blanks with '<'or'>?.
(a) 0.4 m
0.6 m
(b) 0°C
-4°C
(c) -2 °C
-2.5 °C

Answers

Answer:

See below.

Step-by-step explanation:

(a) 0.4 m < 0.6m

(b) 0°C > -4°C

(c) -2°C > -2.5°C

Twelve hours after a convict escapes from prison, a guard begins to pursue him. If the convict travels at eight mph on foot and the guard travels at 56 mph by car, how far from the prison will the convict be caught by the guard?

Answers

7 miles from the prison

3y-z ; use y=6 and z=6

Answers

Answer:

12

Step-by-step explanation:

y = 6; z = 6

3y - z = 3(6) - 6 = 18 - 6 = 12

Answer:

12

Step-by-step explanation:

3y-z is asking 3 x 6 - 6, which equals 12

(3 x 6 = 18 and 18 - 6 = 12)

John's bank account had $1,320 at the end of November. In December, he bought $645 worth of
groceries and spent $225 on his mom's birthday present. Luckily, he earned $350 mowing lawns and $50
for good grades. How much money does John have at the end of December?

Answers

Answer:

850 but im not sure lol

Step-by-step explanation:

645 + 225 = 870

1,320 - 870 = 450

450 + 350 = 800

800 + 50 = 850

4(1-2b)+7b-10

helpp please and please don't say use a calculator i need the answer cause i really need to pass

Answers

Answer:

if you're simplifying, it should be = -1b - 6

Step-by-step explanation:

1. 4(1-2b) + 7b -10 solve the parenthesis

2. 4 - 8b + 7b - 10 combine like(same) terms

3. 4 - 1b - 10 same as 2.

4. -1b - 6

√−100 = ___+ ___i

what is this?? the lesson is called simplifying square roots of negative numbers.

Answers

Answer:

√−100 = 0 + 10i

Step-by-step explanation:

i is equal to the square root of -1

change sqrt(-100) to sqrt(-1) * sqrt(100)

i * 10

10i

What are the y values for the equation : y=0X-4 if x=-3

Answers

Note: Your equation expression seems a little unclear. So, I am assuming that your expression is

y = x - 4

The solution steps would anyway still clear your concept so that no matter what you can solve whatever the expression it is because the procedure remains the same.

Answer:

The value of y = -7 if x = -3

Step-by-step explanation:

Assuming the given the expression

[tex]y = x - 4[/tex]

Given that we have to find the value of y if x = -3.

so substituting x = -3 in the equation

[tex]y = x - 4[/tex]

[tex]y = (-3) - 4[/tex]

[tex]y = -3-4[/tex]

[tex]y = -7[/tex]

Therefore, the value of y = -7 if x = -3

The graph of the equation y = x- 4 is also attached below.

Five full creates of walnuts weigh 195 pounds, whereas an empty crate weights 10 pounds. How much do walnuts alone weigh?

Answers

Answer:

90

Step-by-step explanation:

***WILL MARK BRAINLEST***
Tiffany has crayons that she is going to melt down into a block. If each crayon has a diameter of .25 inches and a height of 3 inches, how many will she have to melt down to fill her block mold that has a volume of 6 in?? Don't include the tip of the crayon. Round your answer to the nearest whole number.​

Answers

Answer:

40

Step-by-step explanation:

The volume of a cylinder is = to [tex]\pi[/tex][tex]r^{2}[/tex]h, so plug in the values and you get that each crayon has a volume of about 0.15 inches. 6/0.15 = 40. :)

Use the Distributive Property to write each expression in factored form. DO NOT determine the answer.


11) 6x2+ 6x3
12) -6x 2 + (-6) x3
13) 5x - 8x

Answers

Answer:

11) 6x^2+ 6x^3 = 6.x.x+6.x.x.x

12) -6x^2 + (-6) x^3  = -6.x.x + (-6).x.x.x

13) 5x - 8x = 5.x -8.x

Step-by-step explanation:

Let us solve the question one by one.

11) 6x^2+ 6x^3

In order to convert the polynomial in the factored form, we see which factors are common in all terms in the polynomial.

[tex]6x^2 = 6.x.x\\6x^3 =6.x.x.x[/tex]

The factored form is:

[tex]= 6.x.x+6.x.x.x[/tex]

12) -6x^2 + (-6) x^3

Similarly, as 11

[tex]-6x 2 =-6.x.x\\-6x^3=-6.x.x.x[/tex]

The factored form is:

[tex]=-6.x.x+ (-6).x.x.x[/tex]

13) 5x - 8x

We can clearly see that there is only one common factor in both terms which is x

[tex]5x = 5.x\\8x = 8.x[/tex]

The factored form is:

[tex]=5.x-8.x[/tex]

Hence,

11) 6x^2+ 6x^3 = 6.x.x+6.x.x.x

12) -6x^2 + (-6) x^3  = -6.x.x + (-6).x.x.x

13) 5x - 8x = 5.x -8.x

Which of the following are polynomials

Answers

Answer:

I would think that 2x+3y+4 would be the answer.

Step-by-step explanation:

help help help please ! :(

Answers

Answer: 5 units

Step-by-step explanation:

The rectangles are similar. What is the value of y?

Answers

Answer:

y=9

Step-by-step explanation:

The rectangles are similar, so simply work with the ratios and divide to find the vaule of y.

60/4=15

36/4=9

Can anyone help me understand?? I genuinely don’t understand. Thank you!

Answers

9514 1404 393

Answer:

  y = (1/4)x^2 -x -4

Step-by-step explanation:

When you are given a focus and a vertex, the equation of a parabola can be written as ...

  y = (1/(4p))(x -h)² +k . . . . . . vertex (h, k); focus-vertex distance p

Here, the vertex is (h, k) = (2, -5) and the focus-vertex distance is 1. That means the equation of the parabola in vertex form* is ...

  y = (1/4)(x -2)² -5

Expanding this equation, we get ...

  y = (1/4)(x² -4x +4) -5 = (1/4)x² -x +1 -5

Then the standard form equation is ...

  y = (1/4)x² -x -4

_____

* In the UK, and perhaps other places, the vertex form is referred to as "standard form." You need to be aware of the form that is being requested here. I have answered using the US version of "standard form." YMMV

Simplify each exponential expression using the properties of exponent and match it to the correct answer​

Answers

Answer:

Step-by-step explanation:

3^-3*2^-3*6^3 = 1

last one=2

2nd one =1/2

Answer:

I cant see your question clearly

Step-by-step explanation:

Find the length of the midsegment of an equilateral triangle with side lengths of 12.5 cm. and please explain how you got it :)

Answers

Answer:

12.5 cm

Step-by-step explanation:

An equalateral triangle is one with all the sides the same length.

Simplify the following by combining like terms:

1y - 8xy + 7x - 5y + 4xy + 9x

Answers

Answer:

-4y-4xy+16x

Step-by-step explanation:

Hope this helps!! If you need it step by step I'll comment it in the comments.

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