All categories

3 years ago

$10.80 for 4 hr and 30 min

Mathematics

1 answer:

mezya [45]3 years ago

8 0

Answer:

$48.60

Step-by-step explanation:

10.80*4.5=48.60

You might be interested in

(8b + 7) + (6x – 4) + (5C + 8)

m_a_m_a [10]

Answer:

8b + 11 + 6x + 5c

Step-by-step explanation:

(8b + 7) + (6x – 4) + (5C + 8)

8b + 7 + 6x - 4 + 5c + 8

8b + 11 + 6x + 5c

3 0

3 years ago

Read 2 more answers

AC and DB are chords that intersect at point H.

valentinak56 [21]

Answer:

16 units

Step-by-step explanation:

see the attached figure to better understand the problem

Applying the Intersecting Chords Theorem

we have that

$AH*HC=DH*HB$

substitute the given values

$(20-x)(x)=(x+4)(12-x)$

$20x-x^2=12x-x^2+48-4x$

Simplify

$20x=8x+48$

$20x-8x=48$

$12x=48$

$x=4$

Find out the length of segment DB

$DB=DH+HB$

$DB=(x+4)+(12-x)=16\ units$

<em>Note</em> In this problem it was not necessary to determine the value of x to calculate the DB segment.

Anyway, the calculation was done for didactic purposes.

7 0

3 years ago

Read 2 more answers

Please solve the equation

victus00 [196]

Answer:

1/5 + 9/5 x^2

None of the listed choices

Step-by-step explanation:

4x^2 +36 1

------------- * ----------

4x 5x

Factor the numerator

4(x^2 +9) 1

------------- * ----------

4x 5x

Cancel the 4

(x^2 +9) 1

------------- * ----------

x 5x

Multiply

(x^2 +9)

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

5x^2

We can break this into terms

x^2 9

------ + -----------------

5x^2 5x^2

1/5 + 9/5 x^2

3 0

3 years ago

Read 2 more answers

If f(x)=3x-2 and g(x)=x^2+1, find f(g(-1)) and g(f(3))

julsineya [31]

Answer:

$f(g(-1))=4$

$g(f(3))=50$

Step-by-step explanation:

We know the definition of both functions: $f(x)=3x-2$ , and $g(x)=x^2+1$

A) In order to evaluate what $f(g(-1)) is$ , let's first investigate what g(-1) is using the definition for this function:

$g(x)=x^2+1\\g(-1)=(-1)^2+1\\g(-1)=1+1\\g(-1)=2$

Now let's find what f(2) is using f(x) definition: $f(x)=3x-2\\f(2)=3(2)-2\\f(2)=6-2\\f(2)=4$

B) In order to evaluate what $g(f(3)) is$ , let's first investigate what f(3) is using the definition for this function:

$f(x)=3x-2\\f(3)=3(3)-2\\f(3)=9-2\\f(3)=7$

Now let's find what g(7) is using the definition for this function:

$g(x)=x^2+1\\g(7)=(7)^2+1\\g(7)=49+1\\g(7)=50$

4 0

3 years ago

brine's kitchen has an area of 81 square feet. the kitchen is 9 times as many square feet as brine's pantry. if the pantry is 3

maks197457 [2]

So 81/9=9 so area of pantry is 9

3 times x=9
3x=9
divide both sides by 3
x=3

legnth/width=3

8 0

3 years ago