Pls help I’m in a call by myself with my math teacher

Answer:

406

the correct answer this the correct way

By "state the universe" I suppose you mean "domain". log₂(x ² + 3x + 2) is defined for

x ² + 3x + 2 = (x + 1) (x + 2) > 0   →   x < -2   or   x > -1

(To solve the inequality, consider values of x between the ones that make the expression exactly equal to 0, in this case x = -2 and x = -1. We have, for instance, for x = -3, that (-3)² + 3(-3) + 2 = 2 > 0, so x ² + 3x + 2 > 0 for all x < -2.)

Now solve the equation: Write both sides as powers of 2 to eliminate the logarithm on the left:

[tex]\log_2(x^2+3x+2)=1\implies 2^{\log_2(x^2+3x+2)}=2^1\implies x^2+3x+2=2[/tex]

Solve the remaining quadratic:

x ² + 3x + 2 = 2

x ² + 3x = 0

x (x + 3) = 0

x = 0   or   x = -3

Both of these solutions are within the presribed domain (-3 < -2 and 0 > -1), so we're done.

Answer:

the answer is either B or C but I think it's C

9514 1404 393

Answer:

  ∠Y = 55°

Step-by-step explanation:

Complementary angles have a sum of 90°.

  ∠S + ∠Y = 90°

  (5∠Y -240°) +∠Y = 90°

  6∠Y = 330° . . . . . . . . . . . . add 240°, collect terms

  ∠Y = 55° . . . . . . . . . divide by 6

Answer:

3.5

7 divided by 50=3.5

3.5x2=7

Step-by-step explanation:

Answer:

70

Step-by-step explanation:

Given

∠PDB = 110°

PDis the tangent to the circle whose centre is E

Construction

Join points D and E.

∠DPE= 90° [Since angle in a semi circle is 90°]

Also ∠PDE = 90° [Since radius ⊥ tangent]

From the figure we have,

∠PDB=∠PDE + ∠DBE

i.e. 110° = 90° + ∠DBE

Therefore, ∠DBE =20°

Now in ΔBED, BE = ED [Radii]

So, ∠EDB = ∠EBD =20°

In ΔBPD, we have

∠DPE = 90° & ∠DBE = 20°

Therefore, ∠DPB = 70°

Answer:

70 is the correct answer

Step-by-step explanation:

Answer:

10% dicount

Step-by-step explanation:

76.50 / 85.00 = .9

The airplane cost 90% of its original value, meaning you have a 10% discount

10% of 85 =  .1 x 85 = 8.50

85.00 - 8.50 = 76.50

Answer:

200

Step-by-step explanation:

Answer:

try 4.9

Step-by-step explanation:

Answer:

3.5 × 140

4.9g

Step-by-step explanation:

Answer:

To round 2.5 to the nearest cent consider the thousandths’ value of 2.5, which is 0 and less than 5. Therefore, the cents value of 2.5 remains 0. answer $2.5   rounded to the nearest cent = $2.50

Step-by-step explanation:

If you like to round 2.5 to the nearest cent, rendering the amount with only two numbers after the decimal point, then you have come to the right post.

Answer:

e = 5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Okay so first you need to find out how much money it will cost in total.

$50*5

=$250

$250+$850=

$1,100

Now, $1,100 divided by 5

1,100/5

=220 hours

And there are 5 friends so divide the total amount hours by 5.

220/5

=44 hours

So you see, each friend will need to work 44 hours.

I hope this helped :)

Brainliest? ✨

Answer:

8% off

Step-by-step explanation:

.2 off/2.5 total = 0.08

0.08 = 8%

Using the together rate, it is found that it would take the apprentice 6 hours to make the same number of sets of glasses when working alone.

The together rate is the sum of each separate rate.

In this problem, the rates are:

Hence, applying the equation for the together rate:

[tex]\frac{1}{2} = \frac{1}{x} + \frac{1}{3}[/tex]

[tex]\frac{x + 3}{3x} = \frac{1}{2}[/tex]

[tex]2x + 6 = 3x[/tex]

[tex]x = 6[/tex]

It would take the apprentice 6 hours to make the same number of sets of glasses when working alone.

To learn more about the together rate, you can take a look at https://brainly.com/question/25159431

Answer:

-13.6

Step-by-step explanation:

Open the bracket

-9.07-(-2.8+1.3).

-25.39+11.79

-13.6

Answer:

-7.57

i found the answer by solving the equation in the parenthises, then i subtract the answer i got with -9.07, and thats how i found out the answer is -7.57 (feel free to use a calculator to make sure its correct :D)

Answer:

130 degrees

Step-by-step explanation:

use protractor and measured angles. Hope i helped you.

Step-by-step explanation:

1-b 2-c 3-d 4-a yep I belive this is correct sorry if I'm wrong

Answer: n= 18

Step-by-step explanation: 3/8 of 48 is the same as 3/8 times 48

Answer:

18

Step-by-step explanation:

48 divided into 8 parts is 6

3x6=18

Answer:

the second one

Step-by-step explanation:

Answer:

Hope that answers your question

Answer:

3x-18=0

3x=18

x=18/3

x=6

Answer:

the correct values are ( 3, -2)

Answer:

(3,-2)

Step-by-step explanation:

x=13/3+2/3y

9x-4y=35

9(13/3+2/3y)-4y=35

y=-2

x=13/3+2/3×(-2)

x=3

Answer:

(1,3)

Step-by-step explanation:

Coordinates are counted first how much spaces on the x-axis. Which in this case Is 1.

And how much spaces on the y- axis in this case 3.

To the right 1 and Up 3.

(1,3)

:)

Answer:

(1, 3)

Those are the coordinates.

Hope that helps!

Step-by-step explanation:

Answer:

1.rode

2. Participate

3. Prepared

i don't know about the other ones

Answer:

80mph?

Step-by-step explanation:

Answer:

The point of intersection of the two lines is;

(-9,-2)

Step-by-step explanation:

What we have to here is to get the equation of both lines, solve simultaneously and get the intersection points

For the first line;

The general form is

y = mx + b

formula for the slope is;

m = (y2-y1)/(x2-x1)

The points (3,4) and (-1,2)

m = (2-4)/(-1-3) = -2/-4 = 1/2

So the equation is;

y = 1/2x + b

To get b, let us substitute coordinates of the first point;

4 = 1/2 * 3 + b

4 = 3/2 + b

b = 4 - 3/2

b = (8-3)/2 = 5/2

So the equation is;

y = 1/2x + 5/2

For the second line;

Slope;

m = (-4-0)/(-6+12) = -4/6 = -2/3

The equation is;

y = -2x/3 + b

Let us substitute the first

0 = -2/3(-12) + b

0 = 8 + b

b = -8

The equation is;

y = -2x/3 - 8

Now , we want to get the intersection point

To do this, we have to solve both equations simultaneously;

Since we have an expression for y in both cases, let us equate both y

-2x/3-8 = 1/2x + 5/2

Multiply through by 6

-4x - 48 = 3x + 15

-4x-3x = 15 + 48

-7x = 63

x = 63/-7

x = -9

To get x;

Recall;

y = -2x/3 - 8

y = -2/3(-9) - 8

y = 6 - 8

y = -2

Answer:

Step-by-step explanation:

1) a ) 7x = 56

Divide both sides by 7

   7x/7 = 56/7

      x = 8

2) 6y = 35

Divide both sides by 6

6y/6 = 35/6

     [tex]y= 5\frac{5}{6}[/tex]

[tex]3a) \frac{x}{3}=10\\\\3*\frac{x}{3}=3*10\\\\x = 30\\\\\\\\d) \frac{c}{18}=\frac{1}{2}\\\\18*\frac{c}{18}=\frac{1}{2}*18\\\\c=9\\\\\\f) \frac{n}{8}=\frac{11}{4}\\\\8*\frac{n}{8}=\frac{11}{4}*8\\\\n=11*2\\\\n=22[/tex]

Answer:

1) a ) 7x = 56

Divide both sides by 7

  7x/7 = 56/7

     x = 8

2) 6y = 35

Divide both sides by 6

6y/6 = 35/6

Step-by-step explanation: