Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .

Answer:

Step-by-step explanation:

Given: AC is a bisector of ∠BCD

           DC ⊥ AD

           BC ⊥ AB

To prove : BC ≅ Dc

                       Statements                        Reasons

1). AC bisects ∠BCD                       1). Given

2)∠ACB ≅ ∠ACD                           2). AC is a bisector of ∠BCD

3). DC ⊥ AD                                    3). Given

4). m∠ADC = 90°                            4). DC is perpendicular to AD

5). BC ⊥ AB                                     5). Given

6). m∠ABC = 90°                            6). BC is perpendicular to AB

7). ∠ABC ≅ ∠ADC                          7). Right angles are congruent

8). AC ≅ AC                                    8). Reflexive property

9). ΔABC ≅ ΔADC                          9). AL property of congruence

10). BC ≅ DC                                  10). CPCTC

Answer:

[tex]6n - 5[/tex]

Step-by-step explanation:

[tex]7 - 1 = 6[/tex]

[tex]6n - 5[/tex]

to check whether your answer is correct.

[tex]n = 1 \\ 6 \times 1 - 5 \\ 6 - 5 \\ = 1[/tex]

[tex]n = 2 \\ 6 \times 2 - 5 \\ 12 - 5 \\ = 7[/tex]

yes, it's correct

hope this helps you

Answer:

[tex]x=\sqrt{14.25} -2.5, x=-\sqrt{14.25}-2.5[/tex]

Step-by-step explanation:

Since moving it to one side can't be factored, I'm going to complete the square.

[tex]x^2+5x=8[/tex]

[tex]x^2+5x+6.25=8+6.25[/tex]

[tex](x+2.5)^2=14.25[/tex]

[tex]x+2.5=\sqrt{14.25}[/tex]

[tex]x=\sqrt{14.25} -2.5, x=-\sqrt{14.25}-2.5[/tex]

Answer:

the rent and I have a great day of school and I have a great day of school and I have a great day of school and I have a great day of school and I have a great day of school and I have a great day of school

Answer:

[tex] \frac{2}{ {x - 1}^{2} } - \frac{1}{x + 1} - \frac{1}{x + 1} = 0[/tex]

[tex] \frac{2}{(x + 1)(x - 1)} - \frac{1}{x + 1} - \frac{1}{x + 1} = 0[/tex]

[tex] \frac{2}{(x + 1)(x - 1)} - \frac{2}{x + 1} = 0[/tex]

[tex] \frac{2 - 2(x - 1)}{(x + 1)(x - 1)} = 0[/tex]

[tex] \frac{2 - 2x + 2}{(x + 1)(x - 1)} = 0[/tex]

[tex] \frac{4 - 2x}{(x + 1)(x - 1)} = 0[/tex]

[tex]4 - 2x = 0(x + 1)(x - 1)[/tex]

[tex]4 - 2x = 0[/tex]

[tex] - 2x = - 4[/tex]

[tex]x = \frac{ - 4}{ - 2} [/tex]

[tex]x = 2[/tex]

Answer:2

Step-by-step explanation: i willn ot provide step by step cuz its a waste of my time becasue it is easer to just give the anwser althou i know it will not help you learn but it faster lets not lie we all just using this to anwser test/quiz questions

Answer: D

Step-by-step explanation:

The woman slice is less than half, greater than a quarter, and just over 1/3. Since 1/3 is about 33%, I would say 35% (D).

Answer:

A

Step-by-step explanation:

Answer:

A should be the correct answer.

Step-by-step explanation:

Hope this helps

Answer:

1 time.

Step-by-step explanation:

1 time.

13 x 1 =13.

13 x 2 = 26.

22<26.

Therefore, 1 time.

Answer:

yes the answer above me is correct

Step-by-step explanation:

only one time

because it has no multipule with 22

Answer:

picture?

Step-by-step explanation:

Answer:

Which graph represents the function r(x) = |x – 2| – 1

- The first graph  

Step-by-step explanation:

Answer:

The area of the now-enlarged shape quadruples. The units are the same; square units.

Step-by-step explanation:

The diagram of the structure isn't provided. But, we can work on a generalized principle for enlargement or reduction.

When a shape is enlarged by a scale factor of 2, it means all of its lengths are increased according to that scale facfor (doubled).

Whatever the shape of the figure was, by enlarging it by a scale factor of 2, all of its dimensions become doubled, and as area is a product of dimensions, two dimensions to be precise, the Area of the object increases by a scale of 4.

For example, if the shape was a rectangle.

A = L × B

When enlarged, new L = 2L, new B = 2B

new Area = new L × new B = 2L × 2B = 4LB = 4 × old area.

A circle

A = πr²

When enlarged, new R = 2r

new Area = π(new R)² = π(2r)² = 4πr² = 4 × old area.

Whatever the original shape was, when it is enlarged by a scale factor of 2, the Area if the new enlarged shape is quadruple of the Area of the old shape.

Hope this Helps!!!

Answer:

option A

Step-by-step explanation:

a triangle must equal 180 degrees option a equals 180 degrees

Answer: 75 10 34

Step-by-step explanation:

Answer:

5565

Step-by-step explanation:

5565

intuitively i think its 5565 ;)

55%

Step-by-step explanation:

percentage of swimming

10%+35%=45%

100%-45%=55%

Answer:

  a. p(n) = 3n -1

  b. $101.50

  c. 9 years

Step-by-step explanation:

a. The number of rats in any given month is an arithmetic sequence with first term 2 and common difference 3:

  for months 1, 2, 3, 4, the rat population is 2, 5, 8, 11.

The usual formula for the n-th term of an arithmetic sequence applies:

  a[n] = a[1] +d(n -1)

  a[n] = 2 +3(n -1) = 3n -1

In month n, the population of lab rats is ...

  p(n) = 3n -1

__

b. After 10 months, the population will be ...

  p(10) = 3·10 -1 = 29

At $3.50 per rat, the cost will be ...

  29 · $3.50 = $101.50

__

c. We want to find for p(n) = 326.

  326 = 3n -1

  327 = 3n

  109 = n

Month 109 is 108 months (9 years) after month 1. The population will reach 326 rats in 9 years.

Answer:

Flour = 5 1/4 Cups

Sugar = 3 Cups

Milk = 1 Cup

Step-by-step explanation:

4 Dozens = Respectively 1 3/4, 1, and 1/3 Cups -->

4(3) = 12 Dozens --> Otherwise A Gross

--> Multiply the formula by 3

7/4 x 3 = 21/4

1 x 3 = 3

1/3 x 3 = 1

Convert to a mixed number

Thus You have your answers

Hope this helps!

Answer:

A, B, and D

Step-by-step explanation:

E is discarded, since the number 7 does not exist on a die.

F is discarded because there are no letters in a die

C is discarded because the elements are placed backwards

Answer:A

Step-by-step explanation:

Answer: yes

Step-by-step explanation:

Answer: not exactly

Step-by-step explanation:

If you put a negative number in a square root you would end up with an error on the calculator. Thats because you end up with an imaginary number since a negative inside a square root can never be calculated, its simply not possible because in order for a negative number to form, a positive number must always be multiplied to a negative number. So people came up with the concept of i:

[tex]\sqrt{-1}[/tex] = i

So something like [tex]\sqrt{-4}[/tex] can be simplified like:

[tex]\sqrt{4}[/tex] * [tex]\sqrt{-1}[/tex]

 2 * i

  2i

But if you're talking about squares like exponent wise, then yes

something like [tex](-2)^{2}[/tex] will always be positive, but you have to be careful with the parentheses.

There is a difference btw [tex](-2)^{2}[/tex] and[tex]-2^{2}[/tex]

[tex](-2)^{2}[/tex] = 4 because you are multiplying (-2)(-2)

but

[tex]-2^{2}[/tex] = -4 because you are multiplying -(2)(2)

Answer:

13 units

Step-by-step explanation:

Distance formula: [tex]d = \sqrt{(x2-x1)^2 + (y2-y1)^2}[/tex]

Simply plug in your variables

[tex]d = \sqrt{(7-2)^2 + (15-3)^2}[/tex]

[tex]d = \sqrt{5^2 + 12^2}[/tex]

[tex]d = \sqrt{25 + 144}[/tex]

[tex]d = \sqrt{169}[/tex]

d = 13

Answer:

The answer is 83/4

Step-by-step explanation:

5 1/4+15.5

21/4+15.5

Taking LCM

21/4+15.5*4/1*4

21/4+62/4

83/4

Answer:

[tex]20\frac{3}{4}[/tex]

Step-by-step explanation:

=> [tex]5\frac{1}{4} + 15\frac{1}{2}[/tex]

=> [tex]\frac{21}{4}+ \frac{31}{2}[/tex]

=> [tex]\frac{21+62}{4}[/tex]

=> [tex]\frac{83}{4}[/tex]

=> [tex]20\frac{3}{4}[/tex]

Answer:

Proved: <3 =<4

Step-by-step explanation:

Alternate angles are equal

<1 = <4

<2 = <3

AC ≅ AR (Given)

Where ≅ means congruent to

When two straight lines intersect, the Vertical angles have opposite sides that are equal.

<CAR ≅ <TAD

<CAT ≅ <RAD

From the above

∆CAR is congruent to ∆TAD

This is a side angle side theorem

∆CAT is congruent to ∆RAD

This is a side angle side theorem

The side angle side theorem shows that two sides and an included angle of one triangle are equal to two sides and an included angle of another triangle.

Since corresponding parts of congruent angles are equal, <3 is congruent to <4.

<3 ≅ <4

Answer:

x2+5x/2 -4

Step-by-step explanation:

f(x) = 2x+3 and g(x) = x^(2)+(x)/(2) - 7 , what is  (f+g)(x)

x^2+5x/2-4

Hey there! :)

Answer:

(5, 1/2)

Step-by-step explanation:

Recall that the midpoint formula is:

[tex](x_m, y_m) = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})[/tex]

Plug in the point values to solve for the midpoint:

[tex](\frac{5+5}{2}, \frac{-3+4}{2} )[/tex]

Simplify:

[tex](\frac{10}{2}, \frac{1}{2})[/tex]

(5, 1/2) is the midpoint.

Answer:

Midpoint: B. (5, 1/2)

Step-by-step explanation:

Add the x-coordinates of the endpoints and divide by 2.

Add the y-coordinates of the endpoints and divide by 2.

x: (5 + 5)/2 = 10/2 = 5

y: (4 + (-3))/2 = 1/2

Midpoint (5, 1/2)

Answer:

Step-by-step explanation:

Given the expression   [tex]\sqrt{-16} - \sqrt{-3} \sqrt{-3} -\sqrt{-4} \sqrt{-4}+3i-3i^{2} +3i^{3}[/tex]

On simplifying;

First we need to note that i² = -1 and √-1 = i

Substituting the values in the expression, it becomes;

= √16(√-1)-√(-3)(-3)-√(-4)(-4)+3i-3(-1)+3i(i²)

= 4i-√9-√16+3i+3-3i

= 4i-3-4+3

= 4i-4

= 4(i-1)

Answer:

Option (3)

Step-by-step explanation:

Given expression in this question represents the partial sum of an infinite geometric series in the sigma notation.

[tex]S_{n}=\sum_{n=1}^{\infty}6(2)^{n-1}[/tex]

First term of this series 'a' = 6

Common ratio 'r' = 2

We have to find the sum of 4 terms of this infinite series (n = 4).

Sum of n terms of a geometric series is,

[tex]S_n=\frac{a(r^n-1)}{(r-1)}[/tex]

[tex]S_4=\frac{6(2^4-1)}{(2-1)}[/tex]

    [tex]=\frac{6(16-1)}{(1)}[/tex]

    [tex]=90[/tex]

Therefore, sum of 4 terms of the given series will be 90.

Option (3) will be the answer.

Answer:It is what it is

Step-by-step explanation:

Answer:

Parallel lines do not intersect.

Parallel lines are like an equal sign

========================

They go Straight across

While perpendicular lines intersect.

A lot of squares are parallelograms, they only have parallel lines.

Hope this helps

~ヾ(・ω・)

Answer:

1/2.25

Step-by-step explanation:

let volume of P be x

Q will be 1.5x

R will be 150/100* 1.5x which is 2.25x

P/R = x/ 2.25x

= 1/2.25

Here we need to write the volume of sphere P as a fraction of the volume of sphere R.

We will get:

[tex]V_P = V_R/2.25[/tex]

The given information is:

From the first statement, we can write:

[tex]V_Q = (1.5)*V_P[/tex]

Where the 1.5 comes because the volume of sphere Q is 150% of the volume of sphere P.

From the second statement we can write:

[tex]V_R = (1.5)*V_Q[/tex]

We can rewrite this last one as:

[tex]V_Q = V_R/(1.5)[/tex]

Now we can replace this on the first equation to get:

[tex]V_R/(1.5) = (1.5)*V_P\\\\V_P =V_R/(1.5)^2 = V_R/2.25[/tex]

This is the equation we wanted, the volume of sphere P as a fraction of the volume of the sphere R.

If you want to learn more, you can read:

https://brainly.com/question/9011354

Answer:

Brainliest!

Step-by-step explanation:

took 5 minutes to drain at a rate of 300 gallons per minute

this means there were 1500 gallons that need to be drained

it is now draining at a speed of 500 gallons per minute

1500/500 = 3

so its 3 minutes

Answer:

True.

Step-by-step explanation:

y = -3x + 20

Put x as 5, then y output should be 5.

y = -3(5) + 20

y = -15 + 20

y = 5

True, the line with slope -3 passes through points (5, 5).

Answer:

Integers are 48, 49, 50

Step-by-step explanation:

x+(x+1)+(x+2) = 147

3x + 3 = 147

3x = 147-3

x = 144 / 3 = 48