Select the correct answer
What is the inverse of this function?
= &, for $20
OA :) = 64:3, for $20
OB. 19) = 852, for = 20
oc (s) = 152, for => 0
OD. 1) = 643? for => 0

Answer:

Step-by-step explanation:

(4a - 3)/(3b + 1) = 39/(a + 1) You are not going to get a numerical answer for this. Cross multiply

(4a - 3)(a + 1) = 39(3b + 1)

4a^2 + a - 3 = 117b + 39

4a^2 + a - 42 = 117b

b = [tex]\frac{a^2 +a - 42}{117}[/tex]

Answer:

b = 3

Step-by-step explanation:

I think that the relations are the following

[tex]\frac{QP}{XY}=\frac{RS}{VZ}=\frac{PT}{XW}\\\\\frac{39}{13}=\frac{4a-3}{a+1}=\frac{5a+6b}{5b+1}\\\\3=\frac{4a+3}{a-1}=\frac{5a+6b}{5b+1}[/tex]

so we first solve for a and then for b

[tex]3=\frac{4a-3}{a+1}\\\\3(a+1)=4a-3\\\\3a+3=4a-3\\\\4a-3a=3+3\\\\a=6[/tex]

and now for b

[tex]3=\frac{5a+6b}{5b+1}\\\\3(5b+1)=5a+6b\\\\15b+3=5a+6b\\\\15b=5a+6b-3\\\\15b-6b=5a-3\\\\9b=5a-3\\\\b=\frac{5a-3}{9}\\\\b=\frac{5(6)-3}{9}\\\\b=\frac{30-3}{9}\\\\b=\frac{27}{9}\\\\b=3[/tex]

Answer:

3, and b

Step-by-step explanation:

1. x =3

Because you have 3 little squares for one x

2. x= -12

b) 15+6=21

Answer:

1. A.3

2. B.

Step-by-step explanation:

B 1/2=.5

Step 1: 0.5*12=6

Step 2: 15+6=21

A.

Because the rectangle = 3 squares so just add them up and you get your answer.

Answer:

one is 12cm another is 24 and remaining is 15 cm

Answer:

y = 1/2x  −  2              

Answer:

$22.50

Step-by-step explanation:

5 x 6 = 30 slices

30 x 0.75 = $22.5

Answer:

I think 22.5 dollars for the total

ten crore is answer for India system

Step-by-step explanation:

hundred million is answer for international system

Answer:

d

Step-by-step explanation:

hope this helped!!!!!

Answer: d

An input is the value that determines another based on the relation or the function rule, usually the x-values in a set of ordered pairs or on a table or graph.

Step-by-step explanation: Its d because the function has one output for each input so d is the correct answer.

I also saw the question on a different persons test in brainly and it was d.

Answer:

1.

90+27

2.

90 = 9 x 10

3.

27 = 9 x 3

4.

So apply the distributive property would be:

90 + 27 = 9(10 + 3)

Step-by-step explanation:

Answer:

The greatest common factor of 90 and 27 is 9.

Using the distributive property , you could write: 9(10 + 3)

Answer:

We can make 48 cookies.

Step-by-step explanation:

60 percent of 120 = 72

120 - 72 = 48

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

triangle A because the measurements would be the same. If you add 30 + 112, you get 150. Triangles add to 180, so the missing angle of the first one is 30.

this means triangle A has the same measurements as ABC

Answer:

12-12

Step-by-step explanation:

hope this helps tell me if it's right

Answer:

12 - 12

Step-by-step explanation:

If the temperature was originally 12°C it decreases by 12° then 12 - 12.

From 12:00 midnight to 6:00 am, the  temperature decreased by 12°C. If the original temperature was 12°C.

Question: Which expression can be used to represent this situation?

12:00 midnight temperature = 12 °C.

6:00 am temperature decreased  by 12 °C.

So 12 - 12.

Hope this helps (sorry if I'm wrong)

Answer:

61.922 feet

Step-by-step explanation:

For this problem, we simply want to set up a trigonometric function that computes the height of the tree, and we want to add the height of Tamara.

We are given a distance from the tree of 30 feet with an angle from her eye-level to the top at 62 degrees.  So we can say the following:

y = tan(Θ) * x

Where Θ = 62 degrees, x = 30 feet, and y is the height of the tree from Tamara's eye level.

y = tan(Θ) * x

y = tan(62) * 30

y = 56.422

So we also need to include the height of Tamara to get the total height of the tree from the ground to the top.

56.422 ft + 5.5 ft = 61.922 ft

Hence, the total height of the tree is 61.922 feet.

The height of the tree is 71.32 feet.

Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.

We set up a trigonometric function to get height of tree.

Distance ,

x = 35 feet away from tree base

Angle = 62⁰ at eye level

Then we get;

Y = tan(angle) x

Y = tan(62⁰) x 35

Y = 1.881 x 35

Y = 65.82 feet

We add Tamara's height to the total height of the tree that forms an equation as;

= 65.82feet + 5.5 feet

= 71.32 feet is the height of the tree

The height of the tree is 71.32 feet.

Learn more about trigonometric;

https://brainly.com/question/21286835

#SPJ2

Answer:

[tex]5 {x}^{2} \: + \: 8x \: - 2 \: = \: 0[/tex]

Step-by-step explanation:

[tex]sum \: of roots = - 2 + \frac{1}{5} = - \frac{8}{5} \\ product \: of \: roots = - 2 \times \frac{1}{5} = - \frac{2}{5} \\ from \: general \: equation \\ a {x}^{2} + bx + c = 0 \\ {x}^{2} + \frac{8}{5} x \: - \frac{2}{5} = 0 \\ 5 {x}^{2} \: + \: 8x \: - 2 \: = \: 0[/tex]

4/10 or 2/5 simplified

Hope this helps you out!

Answer:

8 is the number

Step-by-step explanation:

3x8= 24

24-9 is 15

Answer:

Step-by-step explanation:

I can't make specific statements about the proof because the midpoint is missing.

Givens

There are two right angles created by where the perpendicular bisector meats MN. Both are 90 degrees.

MN is bisected by the point on MN where the perpendicular meets MN

The Perpendicular Bisector is is common to both triangles.

Therefore the two triangles are congruent by SAS

PM = PN                Parts contained in Congruent triangles are congruent.

Answer:

y-1=-1/2(x+7)

Step-by-step explanation:

Find the slope first using the slope formula.

y2-y1/x2-x1

-6-1/7--7

-7/14

Slope is -1/2

Now choose one of the coordinates and put it in point-slope form.

y-1=-1/2(x+7)

Answer

thats right

Step-by-step explanation:

Answer:

A. p+18=41; p = 23

Step-by-step explanation:

Number of hardcover books 18, + number of paperback book add up to make a total of 41, which makes the equation, p+18=41, to solve this, you want to have p by itself, simply subtract 18 from both sides, and you get p = 23.

Hope this helped :)

Answer:

x ≤ 6

Step-by-step explanation:

Let the unknown number be x;

9 times the number is expressed as 9x

9 more than 9 times a number is expressed as 9x + 9

9 more than 9 times a number is less than or equal to 163 is then expressed as;

9x + 9≤ 63

≤ is the less than or equal to sign

Find the solution;

9x ≤ 63 - 9

9x≤54

x ≤ 54/9

x≤ 6

Hence the required solution is x ≤ 6

Answer:

The result is [tex]\frac{2}{3}[/tex].

Step-by-step explanation:

Since there is no symbol in front of the first bracket, we can straight up remove it with no consequences.

Hence, the equation we get is:

[tex]\frac{3}{8} + \frac{2}{3} - \frac{3}{8}[/tex]

[tex]= \frac{2}{3}[/tex]

Therefore, the result is [tex]\frac{2}{3}[/tex].

Hope this helped!

Answer:

i) 3/8

ii) -2

Step-by-step explanation:

i) 1/2*3/2/(1/2+3/2)

3/4/2

3/4*1/2

3/8.

ii) 1/2+3/2 / 1/3-3/2

2/-1

-2.

Hope this helps :)

Answer:

1646.5 g mineral oil

Step-by-step explanation:

i think thag the answer

Answer:

You said

Step-by-step explanation:

No answer needed just take the points yey

Answer:

8^8

Step-by-step explanation:

Thx

Answer:

b

Step-by-step explanation:

Answer:

ITS A B F ON EDGE GUYS THE PEOPLE IN COMMENTS RIGHT!!!!!1

Answer:

0.5 is point D

-1/2 is point C

-1.4 is point B

2 is point F

Step-by-step explanation:

Pls give brainliest!

Answer:

first one 5/8

Step-by-step explanation:

2 1/2 / 4 = 5/8

Answer:

I believe once it saw the cast iron skillet's beauty, it melted.

Step-by-step explanation:

No clue just that was the first thing in me mind.