Help please and please explain how I don’t understand

Answer:

BC = 7

Step-by-step explanation:

AB + BC = AC

Substitute values for the line segments:

6 + BC = 13

Isolate line segment BC by subtracting both sides by 6:

6 - 6 + BC = 13 - 6

0 + BC = 13 - 6

BC = 7

Check your work:

6 + 7 = 13

13 = 13

Correct!

Answer:A

Step-by-step explanation:

I believe that it’s the last one because it makes the most sence but then again i could be wrong

Answer:

d) 2.0 * 10⁸

Step-by-step explanation:

199,792,458  ≈ 200,000,000 = 2.0* 10⁸

Answer:

Solution given;

[tex] \sqrt{ \dfrac{225}{9} } [/tex]

[tex] \sqrt{ \dfrac{15²}{3²} } [/tex]

[tex] \sqrt{ (\dfrac{15}{3} )²} [/tex]

[tex]\dfrac{15}{3}[/tex]

=5

Answer:

First, simplify the content under root:

Now, use the following identity:

Last, we get:

F is the numerator of the fraction. To solve move g over to the opposite side by multiplying both sides by g:

F = h * g

Answer:

Step-by-step explanation:

b = h+3

Perimeter = 2b+ 2h

= 2(h+3) +2h

= 4h+ 6

4h+6 = 26

h = 5 cm

b = h+3 = 8 cm

Step-by-step explanation:

We are dealing with theoretical probability. This means that our probability of said outcome is

[tex] \frac{x}{y} [/tex]

where x is the outcome we want, and y is the total number of outcomes possible.

28. There is 3 triangles out of 6 polygons so the probability is 1/2.

29.There is 1 Pentagon so the probability is 1/6.

30. This is a complement to question 28. A complement is the inverse of the problem. A complement and its original add to 1 so the probability of both getting a triangle is 1/2.

31. There is 4 non quadraletrial so the probability is 2/3.

32. There is 3 figures that has more sides than three so 1/2 is the probability.

33.There is only multi right angles figures so 1/2 is the probability.

34. There is 30 days in April so the probability it's the 29th is

[tex] \frac{1}{30} [/tex]

35. There is 31 days in July and 15 days after the 16th. So the probability

is

[tex] \frac{15}{31} [/tex]

Answer:

5 and 1/4 hours or 5 hours and 15 minutes

Step-by-step explanation:

She played her flute 3/4 hours every day for 7 days, so to find the total number of hours we can multiply 3/4 by 7 to get 21/4.  This is equal to 5 and 1/4 hours, or 5 hours and 15 minutes.

Answer:  5.25 hrs

Step-by-step explanation:  3/4 of an hour is 45 min.  45 min x 7 days is 315 min which is 5 hours and 15 min or 5.25 hrs

Answer:

|-x|

Step-by-step explanation:

A reflection across the y-axis means the negative is on the inside: g(-x)

Answer:

the answer is c

Step-by-step explanation:

because it takes a non-negative number as input and returns the square root of that number as output.

Answer:

32.

Step-by-step explanation:

Here is the equation I used. (x = hours)

$400 = $12.50x

To find how many hours he needs to work, divide both sides by 12.50 to get x by itself.

400/12.50 = 12.50x/12.50

Which equals:

32 = x

Answer:

18

Step-by-step explanation:

2h - 32 - 16 = -12

2h - 48= -12

2h =-12+48

h=36\2

h = 18

Answer:

h = 18

Step-by-step explanation:

Given

2(h - 16) - 16 = - 12 ← distribute and simplify left side

2h - 32 - 16 = - 12

2h - 48 = - 12 ( add 48 to both sides )

2h = 36 ( divide both sides by 2 )

h = 18

Answer:

Use the given functions to set up and simplify  

( 3x   +  10 )  ( 6 x  −  10 )   =     18 x^ 2  +  30 x  −  100

[tex] \huge{ \boxed{ \bf{ \red{Problem:-}}}}[/tex]

[tex] \huge{ \boxed{ \bf{ \red{Solution:-}}}}[/tex]

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

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

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

[tex] \bold{⇒3 + x = 2(2x)}[/tex]

[tex] \bold{⇒3 + x = 4x}[/tex]

[tex] \bold{⇒3 = 4x - x}[/tex]

[tex] \bold{⇒ \frac{3}{3} = x}[/tex]

[tex] \bold{ \therefore{x = 1}}[/tex]

Answer:

Step-by-step explanation:

Add 67% of 85 to 33% of 76:

67% of 85

[tex]\\ \sf\longmapsto \dfrac{67}{100}\times 85[/tex]

[tex]\\ \sf\longmapsto 85(0.67)[/tex]

[tex]\\ \sf\longmapsto 56.95[/tex]

33% of 76

[tex]\\ \sf\longmapsto \dfrac{33}{100}\times 76[/tex]

[tex]\\ \sf\longmapsto 76(0.33)[/tex]

[tex]\\ \sf\longmapsto 25.08[/tex]

Add both

[tex]\\ \sf\longmapsto 56.95+25.08[/tex]

[tex]\\ \sf\longmapsto 82.03[/tex]

Answer:

A. All real numbers.

Step-by-step explanation:

[tex]x + 4 = \frac{2x + 8}{2} \: \: multipling \: both \: sides \: by \: 2 \\ 2(x + 4) = 2x + 8 \\ 2x + 8 = 2x + 8[/tex]

When you end up with a true statement like this, it means that the solution to the equation is “all real numbers”. Any value for x that you can think of will make this equation true.

Answer:

The time is 2:43

Step-by-step explanation:

I did it in my head....

Answer:

1

Step-by-step explanation:

4(4-w) = 3(2w+2)

Use distributive property:

16 - 4w = 6w + 6

    +4w  +4w

------------------------

     16 = 10w + 6

    -6              -6

-------------------------

        10 = 10w

        ----    -----

        10      10

         1 = w

Hope this helped.

Hence, the required answer is 1

Answer:

Bake = $300

Josh = $100

Step-by-step explanation:

3:1

3(00) / 1(00)

300   /   100

Chow,...!

We have with a  study the diagram of the diagram below and the explanations that follows the correct answers are

Generally

1)

OP is a segment bisector.

NO

OP is not a segment bisector because it those not divide segment LKMN in to two equal parts.

2)

OP is a perpendicular bisector.

NO

OP is not a perpendicular bisector because a perpendicular bisector is a bisector that cuts a segment into two equal parts and create an angle to the normal

3)

OP is an angle bisector

NO.

Because OP those not divide any angles into two equal parts

4)

O is the vertex of a pair of congruent angles in the diagram.

YES

Because O lines in between two angles of the same degree()

5)

O is the vertex of a right angle.

NO

Because O those not exist at a right angle

6)

The midpoint of a segment in the diagram

The mid point of this segment can be derived by drawing diagonals across the 4 vertex LMNK.

For more information on this visit

https://brainly.com/question/17581080

The formula for volume is

V = Lenght x Width X Height

In your diagram, we have all 3 of these.

Length = 25 cm

Width = 12 cm

Height = 14 cm

To make it easier let's just convert all these to meters.

Length = 0.25 m

Width = 0.12 m

Height = 0.14 m

V = (0.25)(0.12)(0.14)

V = 0.0042 cubic meters

Answer:

Step-by-step explanation:

-5a-4a+b

-5a-4a are like terms

-5a-4a+b

-9a+b

please mark this answer as brainlist

Answer:

I have ans in the picture form.

Step-by-step explanation:

Take it

Answer:

B. [tex] 2 \frac{1}{2} [/tex]

Step-by-step explanation:

[tex]3 \frac{1}{8} \times \frac{4}{5} [/tex]

[tex] \frac{25}{8} \times \frac{4}{5} [/tex]

[tex] = \frac{5}{2} = 2 \frac{1}{2} [/tex]

Answer:

33

Step-by-step explanation:

x+3=0

x=-3

4(-3)²-3=(4×9)-3

36-3=33