The side lengths are 9,12, and 15 . is this a right triangle?
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Answer:

BD = 12.1 (nearest tenth)

Step-by-step explanation:

∆ABC is an isosceles triangle, since it has two equal sides, AB and BC. Also, this means that <BAD and <BCD = 60° each.

BD divides ∆ABC into two equal parts.

Apply trigonometric ratio to find BD.

Reference angle = <BAD = 60°

Adjacent = AD = 7

Opposite = BD

Thus, we would have:

tan 60 = opp/adj

Tan 60 = BD/7

7*Tan 60 = BD

12.1 = BD

BD = 12.1 (nearest tenth)

Step-by-step explanation:

f(x)=3x-2

f(-5) means that x equals -5

All you would need to do is substitute -5 into the equation

3(-5) - 2

-15-2

-17

f(-5) is -17

Answer:

-17

Step-by-step explanation:

f(-5) means plug -5 for x

thus f(-5) = 3(-5) -2 = -17

Answer:

9.50+1.50 = 11

11*4 = 44

44/100*115= 50.6

T= $50.60

Answer:

[tex]\frac{5}{12}[/tex]

Step-by-step explanation:

[tex]\frac{2}{3} - \frac{1}{4}[/tex]

Common Denominator:

[tex]\frac{8}{12} - \frac{3}{12}[/tex]

Subtract the numerator, the denominator stays the same.

[tex]\frac{5}{12}[/tex]

Answer:

f(4) = 1/2 * 4 + 6 = 8

Step-by-step explanation:

f(x)=1/2x+6

f(4) = 1/2 * 4 + 6 = 8

Are trying to evaluate f*g(4) ?

Note: It seems the first term of your sequence is 7 instead of 2. So, I am assuming you meant the sequence such as;

7, 12, 17, 22, 27

Answer:

The expression for the nth term of the givens sequence is:

Step-by-step explanation:

Given the sequence

7, 12, 17, 22, 27

Here, the first element of the sequence is:

[tex]a_1=7[/tex]

An arithmetic sequence has a constant difference 'd' and is defined by  

[tex]a_n=a_1+\left(n-1\right)d[/tex]

computing the differences of all the adjacent terms

[tex]12-7=5,\:\quad \:17-12=5,\:\quad \:22-17=5,\:\quad \:27-22=5[/tex]

The difference between all the adjacent terms is the same and equal to

[tex]d=5[/tex]

so substituting d = 5 and [tex]a_1=7[/tex] in the nth term to determine the expression

[tex]a_n=a_1+\left(n-1\right)d[/tex]

[tex]a_n=5\left(n-1\right)+7[/tex]

[tex]a_n=5n+2[/tex]

Therefore, the expression for the nth term of the givens sequence is:

Step-by-step explanation:

(Ryan+ castel)/2

(5+6)/2

11/2

5.5 hrs or 5½ hrs

Answer:

40 degrees

Step-by-step explanation:

2x + 3x + 2x + x + 10 + 30 = 360

Combine like terms

8x + 40 = 360

8x = 360 - 40

8x = 320

x = 320/8

x = 40

40 degrees

Please Rate and Mark as Brainliest!

The pink shape is the shape that is the exact shape.I'm pretty sure the purple and blue shape are smaller points of the shape though.

Answer: it is 1,3,4

Step-by-step explanation:

Answer:

155 would be your answer

Step-by-step explanation:

100-35=65+90=155

Answer:

x=-1

Step-by-step explanation:

Given,

[tex]2(\dfrac{x-3}{5})=x-\dfrac{3}{5}[/tex]

To Find : x

[tex]\dfrac{2(x-3)}{5}=x-\dfrac{3}{5}[/tex]

[tex]\dfrac{2x-6}{5}=x-\dfrac{3}{5}[/tex]

[tex]\dfrac{2x}{5}-\dfrac{6}{5}=x-\dfrac{3}{5}[/tex]

[tex]\dfrac{2x}{5}-x = \dfrac{6}{5}-\dfrac{3}{5}[/tex]

[tex]\dfrac{2x-5x}{5} = \dfrac{6-3}{5}[/tex]

[tex]\dfrac{-3x}{5} = \dfrac{3}{5}[/tex]

[tex]x = -1[/tex]

Hence, the value of x is -1.

Answer:

the answer is d im srry if im wrong

Step-by-step explanation: they all are going upwards brainliest plss

Answer:

hello this is my other account so yea i hope your happy with your brainliest im about to give you

Step-by-step explanation:

Rosalina's florist sells roses by the dozen. On Friday Rosalina received an order for 21 dozen roses. How many roses does Rosalina need to fulfill the order? A 144 roses B 212 roses C 252 roses D 262 roses

Given that,

Rosalina received an order for 21 dozen roses

To find,

Number of roses.

Solution,

We know that,

1 Dozen = 12 items

We need to find number of roses in 21 dozen roses.

21 dozen = 21 × 12

= 252 roses

Hence, 252 roses Rosalina need to fulfill the order

Answer:

In mY Knowledge

answer of 2) 0.49

3) 0.39

4) 50 766.20 and 1 522.9878

hope it helps :D

am I too late to answer this!?

The given numbers can be rounded off by using the rules of rounding off to the nearest hundredths and rounding off to the nearest thousandths.

Rules for rounding off to the nearest hundredths are:

Rule 1 - In rounding off to the nearest hundred, the digit at tens place is in between 0 to 4 then replace that digit by 0.

Rule 2 - In rounding off to the nearest hundred, the digit at units place is replaced tens place digit by 0 if the digit is greater than or equal to 5 and hundreds place digit is increased by 1.

Rules for rounding off to nearest thousandths:

Rule 1 - In rounding off to nearest thousandths, if the digit at hundreds place is in between 0 to 4 then it is replaced by 0.

Rule 2 - In rounding off to the nearest thousandths, if the digit at hundreds place is greater than or equal to 5 then increase it by 1.

2). The largest decimal in hundredths rounded to 0.5 is 0.49.

3). One centimeter is equivalent to about 0.3937 inches. So, the given equivalent rounding to the nearest hundredths is 0.39.

4). The number 50766.25 rounded to the nearest hundreds is 50766.20 and the number 1522.9875 rounded to the nearest thousandths is  1522.9878.

For more information, refer to the link given below:

https://brainly.com/question/2096984

Answer: y= 0.64 is the answer

Answer:

3

Step-by-step explanation:

18 divided by 6 is 3, im not very good at explaining-

Answer:

B X equals 3

Step-by-step explanation:

e3quals 3

Answer:

Step-by-step explanation:

KL = [tex]\sqrt{(3-7)^2 +(4-0)^2}[/tex] = 4√2

LM = [tex]\sqrt{(2-3)^2 +(-1-4)^2}[/tex] = √26

KM = [tex]\sqrt{(2-7)^2 +(-1-0)^2}[/tex] = √26

ΔKLM is isosceles.

Answer:

Triangle KLM is isosceles.

Step-by-step explanation:

Hope this helps.

Answer:

None of the above.........

Answer:

24 miles

Step-by-step explanation:

12 x 8 = 96

1 in = 0.25

96 in = 24

Answer:

6m^2

Step-by-step explanation:

Set up proportions and find the length and width of the park in miles.

Length:

l = 12(0.25)

l = 3 miles

Width:

w = 8(0.25)

w = 2 miles

The area of the park is A = lw = (3)(2) = 6 mi.2

Answer:

The square root of 10 is 3.16. Point F is between 3.1 and 3.2.

Step-by-step explanation:

Answer:

x = 30

Step-by-step explanation:

Since RQ bisects ∠ PRS, then

∠ SRQ = ∠ PRQ , substitute values

3x - 20 = x + 40 ( subtract x from both sides )

2x - 20 = 40 ( add 20 to both sides )

2x = 60 ( divide both sides by 2 )

x = 30

Answer:

A. {(0, 3), (1, 6), (2, 9)}

Step-by-step explanation:

All you have to do is substitute them

A.

y − 3 = 3x

3 - 3 = 3 (0)

0 = 0

y − 3 = 3x

6 - 3 = 3 (1)

3 = 3

y - 3 = 3x

9 - 3 = 3 (2)

6 = 6

__________________________________________________________

B.

y - 3 = 3x

0 - 3 = 3(3)

-3 = 6

You can tell that this one can't be one of the answer which means that B wont be the answer, so you don't have to do anymore work for this one.

__________________________________________________________

C.

y - 3 = 3x

3 - 3 = 3(1)

0 = 3

This one can't be an answer either

__________________________________________________________

D.

y - 3 = 3x

1 - 3 = 3(1)

-2 = 3

And this one can't be an answer either

__________________________________________________________

This concludes, that A will be the answer here since all of the ordered pair can be x and y when you use the inputs and outputs that were given.

Hope this helped!

Answer:

The general equation of the parabola     y = -3 x² + x

Step-by-step explanation:

Step(i):-

Given points are (0,0) , (1, -2) and ( -1 , -4 )

Given the standard parabola

                                y = ax²+ b x + c ...(i)

Passing through the point (0,0)

                              c = 0

Passing through the point (1,-2)

                            -2 = a(1) +b(1)

                   a + b = -2 ...(ii)

Passing through the point (-1, -4)

                        - 4 = a - b

               a - b = -4 ...(iii)

Step(ii):-

Adding (ii) and (iii) equations , we get

            2 a = -6

              a = - 3

substitute   a = - 3 in equation (ii)

       -3 + b =-2

             b = -2 + 3 = 1

Final answer:-

The general equation of the parabola

              y = ax²+ b x + c

             y = -3 x² + x + 0

             y = -3 x² + x

Answer:

Part A) plot 1 and -2.5.

B) The opposite of 2 is -2. The only number that has its own opposite is 0. The first statement is false.

The opposite of 1.5 is -1.5, so the opposite of the opposite of 1.5 is equal to the opposite of -1.5, which is 1.5. The second statement is true.

Hope this helps sorry for not answering earlier

Answer:

x= -4

Step-by-step explanation:

I hope this helps, have a great day/night :) !

Answer:

x = -4

Step-by-step explanation:

2x + 3 = -6x - 29

2x + 6x = -3 - 29

8x = -32

x = -32/8

x = -4

Hope this helps :D

Answer:

C | 1/5

Step-by-step explanation:

There are 5 20s in 100. Meaning if you only have one 20, it'd be 1/5.

Answer:

C: 1/5 · 60

Step-by-step explanation:

I got it right on I-ready.

Hope this helps!

From: Aug1e