Please help me. I don’t understand this problem.

Answer:

Hello, I Am BrotherEye, I Am Happy To Help

Step-by-step explanation:

??? What do you mean???

Domain:  (−∞,∞)  ,  {x|x∈R}

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(−∞,∞)

Set-Builder Notation:

{x|x∈R}

i hope this helped. please give brainliest if it did!

Answer:

25% markup

Step-by-step explanation:

they bought 200 shirts for 1600, which is 8$ per shirt

if they sell then at 10$ they get 2 dollars profit.

if you do 2/8 you get 25%

Also 1/4 of 8$ is 2$ and that is what your profit is.

Answer:

25%

Step-by-step explanation:

Cost of one short:

1600 : 200 = $8

8 + 8(x/100)= 10

800 + 8x= 1000

8x = 200

x = 25 %

Answer:

Lin ran at 2.9 meters per second. She can run 174 meters in a minute (2.9 times 60)

Step-by-step explanation:

If she can run 2.9 meters in a second then when you times that by four you get how far she can run in a minute

Answer:

A. 3

B. 5

C. 1

D. 2

E. 4

Step-by-step explanation:

one way to quickly check your answers is to check for the number lines with a blank hole and one with a coloured in hole. the one with a coloured in hole should be x=<y. the ones with a blank hole should be x<y. (this trick will not completely check for every mistake.)

Answer:

14

Step-by-step explanation:

multiples are the list of number that can be multiplied by a certain number.

list the multiples

make a chart

1 × 7 = 7 (odd)

2 × 7 = 14 (even)

the first even multiple is 14 (2×7)

Answer:

6x+2y=-78

Step-by-step explanation:

8x-3y=-70

-2x+5y=-8

6x+2y=-78

Answer:

(-11, -6).

Step-by-step explanation:

8x-3y=-70

-2x+5y=-8     Multiply this equation by 4:

-8x+20y=-32

Now add this last equation to the first equation:

17y = -102   - we see that we have eliminated x.

y = -102/17

= -6.

Now plug y=-6 in the first equation to get x:

8x-3(-6)=-70

8x =-70 -18

8x =-88

x = -11.

Answer:

D

Step-by-step explanation:

I think it's D. Because you have that free shots give you 1 point so it is 1x or x , then you have two pointers which give you 2 points so it is 2y and you have three pointers which give you 3 points so it is 3z

Answer:

i think B makes more sense

Step-by-step explanation:

Answer:

AB = sqrt 74 = 8.602

Step-by-step explanation:

simple:

a^2+b^2=c^2

5^2+7^2=74

ab=sqrt 74

Formula :

Distance between two points = √(xB−xA)2+(yB−yA)2(xB-xA)2+(yB-yA)2

Solution :

Distance between two points = √(8−3)2+(2−9)2(8-3)2+(2-9)2

= √52+(−7)252+(-7)2

= √25+4925+49

= √7474 = 8.6023

Distance between points (3, 9) and (8, 2) is 8.6023

Answer:

Step-by-step explanation:

Fraction:

0.8 = 8/10 = 4/5

Percent:

0.8*100 = 80%

Answer:

0.8 can be written as

8/10 and

Percentage = 8/10 × 100

Percentage = 8 × 10

Percentage = 80%

Or,

Simply

Percentage = 0.8 × 100

Percentage = 80%

[tex] \\ [/tex]

Answer:

85

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

The function f(x)=x2 is not one-to-one because f(2) = f(-2). Its graph is a parabola, and many horizontal lines cut the parabola twice. The function f(x)=x 3, on the other hand, IS one-to-one. If two real numbers have the same cube, they are equal.

Step-by-step explanation:

here's your solution

=> x^2 + 15x + 50

=> By using middle term split

=> x^2 + 10x + 5x + 50

=> taking common from each

=> x(x + 10) + 5(x + 10)

=> (x + 5) (x + 10

hope it helps

Answer:

48 burgers with onions

Step-by-step explanation:

7 = 4 = 11 sets of burgers with & without onions

132 / 11 = 12

4 x 12 = 48 burgers with onions

Answer:

48 burgers also onions

Step-by-step explanation:

Solution :

It is given that the distance between the two lights is 30 feet.

The angle of elevation of the upper light from the boat, ∠ ABP = 32 degree

The angle of elevation of the lower light from the boat, ∠ ABQ = 14 degree

∴ ∠ PBQ = ∠ ABP - ∠ ABQ

              = 32 - 14

              = 18 degree

In triangle PAB

∠ PAB = 180 - (90 + 32)

           = 58 degree

Similarly in triangle AQB

∠ AQB = 180 - (90 + 14)

           = 76 degree

Now considering triangle PBQ and applying the sine theorem,

[tex]$\frac{PQ}{\sin 18}=\frac{BQ}{\sin 58}$[/tex]

we know PQ = 30 feet

∴ [tex]$BQ =\frac{\sin 58}{\sin 18} \times 30$[/tex]

        = 82.33 feet

Again taking the right triangle ABQ and applying sine theorem,

[tex]$\frac{BQ}{\sin 90}=\frac{AB}{\sin 76}$[/tex]

[tex]$\frac{82.33}{\sin 90}=\frac{AB}{\sin 76}$[/tex]

∴ [tex]$AB = 82.33 \times \sin 76$[/tex]

         = 79.88 ft

         = 80 feet

Answer:

x+y=z

4+9=13

Step-by-step explanation:

x=4

2(4)+1=y=9

4+9=13

Answer:

Step-by-step explanation:

Answer:

....................

Step-by-step explanation:

Answer:

uu still doing that f4f?

Step-by-step explanation:

Answer:

your answer is Option D. ∧ACD≈ ∧BCD because of SAS

Step-by-step explanation:

hope it helps...

The relationships proved to be ΔACD ≈ ΔBCD, because of SAS (Side Angle Side).

SAS" is when we know two sides and the angle between them. If the two sides of a triangle are equal to the two sides of another triangle, and the angle formed by these sides in the two triangles are equal, then these two triangles are congruent. The SAS Criterion stands for the 'Side-Angle-Side' triangle congruence theorem.

To prove the SAS :-

In ΔACD and ΔBCD

AD=BD (Given)
D=D(Common 90° angle)

CD=CD (Common)

Therefore, ΔACD ≅ ΔBCD, because of SAS (Side Angle Side) rule.

To learn more about SAS, refer here :

https://brainly.com/question/16884384

#SPJ2

Answer:

45 pages in 1 hour

Step-by-step explanation:

Find the unit rate by dividing the number of pages by the number of hours

135/3

= 45

This means he can read 45 pages in 1 hour.

The unit rate is 45 pages in 1 hour.

Answer:19.625

Step-by-step explanation:

Answer: 19.625in^2

Step-by-step explanation:

Answer:

4degree

Step-by-step explanation:

Just divide 48 by 12 so as to get the temperature dropped in each hour

Answer:

c^9 / 4

Step-by-step explanation:

Answer:

70

Step-by-step explanation:

Knowing both values of variables m and n, you could substitute each of the values inside the equation.

=(-(2))-3(-24)

=(-2)+72

=70

Hope it helped! (:

Answer:

The side is MJ

Step-by-step explanation:

Here, we want to name the side opposite the angle MEJ

The angle MEJ is on the vertex E in the right triangle

The side that faces the vertex E is MJ

Answer:

id k i got 4x + 5y=40

Step-by-step explanation:

Answer:

a) 6 ways

b) 6 ways

Step-by-step explanation:

a) for all of the letters

for the first letter, we have 3 options

for the second, we have 2 options

for the third, we have 1 option

So the number of options will be;

3 * 2 * 1 = 6

b) for the first, we have 3 options, for the second, we have 2 options

so the number of options will be 3 * 2 = 6 options