pls help i dont get how to do it i only know how to plug in but how do u decide which one?

Answer:

36 cm²

Step-by-step explanation:

⇒c ≈ 5 cm

Sabc= (1/2)bcsin A ≈ 36 cm²

Step-by-step explanation:

pentagonal pyramid

cone

7

Answer:

1. 4x + 6

2. -15x + 11

5. -x + 4

6. -4x + 7

9. 5x - 2

12. x + 16

Step-by-step explanation:

Remove the parenthesis for each one so everything's out in the open. Next, you group like terms. The numbers with variables on one side, and the other numbers on the other side. For example:

x + 3x - 2 + 8

Then, you combine like terms:

4x + 6

That's mostly how you do each one.

Answer:

y=4x+3

Step-by-step explanation:

Find the intercept - that is 3

Find the slope - that is 4

Answer:

-4

Step-by-step explanation:

2 more than the product of 3 and a number is -10 can be written as 3x+2=-10.

we can take this equation and solve it, first subtracting 2 from both sides to get 3x=-12.

now we divide both sides by 3 to get x=-4, so the answer is -4.

Answer :A trapezoid has one pair of parallel sides and a parallelogram has two pairs of parallel sides. So a parallelogram is also a trapezoid. Carlos says, A trapezoid has at least one pair of parallel sides, but it can also have another.

Step-by-step explanation:

Answer:

Parallelogram and Rhombus

These two quadrilaterals describe the figure

Answer:

x = 2 ; y= 4

Step-by-step explanation:

3x -2y = -2

y = -3x+10

3x + 6x -20 = -2

9x = 18

x = 2

y = -6 + 10

y = 4

Answer:

x = 2

y = 4

Steps:

given:

3x – 2y = -2

3x + y = 10

2y = 3x+2

y = (3x+2)/2

3x + y = 10

3x + (3x+2)/2 = 10

(6x+3x+2)/2 = 10

(9x + 2)/2 = 10

9x + 2 = 20

9x = 18

x = 2

y = 4

Answer:

1 times 425

400+25

210+215

Step-by-step explanation:

answer:

if you rounded it the answer is 15 years old!

step-by-step explanation:

when know that your sister is 9 years old, so lets start off with that. because your sister is 4 older then your brother then that must mean that you brother is 5 years old

9-4

= 5

we also know that you brother is 1/3 your age so divide 5 by 1/3 or .33

5/ .33

= 15.15

but since it looks like we only need the whole number. just round down to 15 since your age is not close enough to round up to 16

( here is a tip i have gotten for rounding )

1-4 stay on the floor

5-9 climb the vine

haha they might sound super du-mb but they have helped me when i was younger!

hope this helps you and if you ever need anymore help/questions just ask me! :)

Answer:

x = 44

Step-by-step explanation:

You can rewrite logarithm equations like so:

[tex]log_{b}(x) = y\\\\x = b^y[/tex]

A way to remember this is the base in the logarithm is also the base in the exponent - then remember this base b is to the power of what's on the other side - and all this is equal to whatever's in the parentheses.

In this case,

[tex]log_3(2x-7) = 4\\2x - 7 = 3^4\\x = (3^4 + 7)/2 = 44[/tex]

Answer: g(x)= solve for x

G(x)=4x+2

I think 4x+2 is in standard form but if not

Do divid by four

Which is about 0.5

X=0.5

1/5

2/10

3/15

5/25

6/30

7/35

8/40

9/45

10/50

Answer:

1/5

Step-by-step explanation:

4/20=1/5

Answer:

To divide powers with the same base and to simplify expressions with negative exponents. 1. Vocabulary Review. Is the expression x5 an exponent or a power

Step-by-step explanation:

Answer:

my guess is 2,3, and 1.

Step-by-step explanation:

in the ending it's always a finish of "definition of something"

After the given is always the substitution

and the angles forming a linear pair sum to 180 is after the substitution because you're now solving it.

maybe wrong but thats what i think the answer is.  

Answer:

$1.00

Step-by-step explanation:

5 (0.05) (4)= $1.00

hope this helps

Step-by-step explanation:

THE SLOPE IS 0

HOPE THIS HELPS

Step-by-step explanation:

A. DEG =x+20 (alt angles DellFg)

B. DHG =110 (opp angles of cyclic quad)

X+20+2x+10=180(remember to solve for x)

Answer:

4.55

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

Answer:

4000

Step-by-step explanation:

A=P(2)^(t/d)

A=future amount

P=starting amount

t=time elapsed

h=doubling time

given

P=10^3

t=6

d=2

A=10^3(2)^(6/2)

A=10^3(2)^2

A=10^3(4)

A=4*10^3

A=4000

4000 bacteria

Answer:

33 I hope this helps good luck with the answer

Answer:

60°

Step-by-step explanation:

I think, should be correct all sides = 180

180/3 = 60

Answer:

x = 60

Step-by-step explanation:

This is an equilateral triangle so all angles are 60 degrees

Answer:

53

Step-by-step explanation:

86 = 2x - 20

+20       +20

106 = 2x

2       2

53 = x

Answer:

x = 53

Step-by-step explanation:

Those 2 are alternate interior angles. So that means they're the same

2x - 20 = 86     <-- Add 20 to the right side

2x = 106     <-- Divide by 2

x = 53

A) (3,-5)

Go over to the right 3 and down 5

B) (-4,-1)

Go over to the left 4 and down 1

Answer:

A - (3, -5)

B - (-4, -1)

Step-by-step explanation:

A - (3, -5)

B - (-4, -1)

Answer:

36

Step-by-step explanation:

Because the box is a 4x5 so that's 20 and then the triangle is a 8x4 so 32 divided by 2 is 16 and finally 16 + 20 is 36

Answer:

C please give brainest!

Step-by-step explanation:

i. c b a

ii. e d f

iii. h i g

hope this helps

now give me your brain lol

Answer:

1. (<A) > (<B) > (<C)

2. (<F) > (<D) > (<E)

3. (<H) > (<I) > (<G)

Step-by-step explanation:

The sides-angles theorem in a triangle states that the largest angle in a triangle will be opposite the largest side. One can apply this to the given set of triangles:

(1)

CB > AC > AB

4.4 > 3.1 > 2.7

(<A) > (<B) > (<C)

(2)

DE > FE > DF

(x) > (x-3) > (x-5)

(<F) > (<D) > (<E)

(3)

GI > GH > HI

(21x) > (14x) > (13x)

(<H) > (<I) > (<G)