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grin007 [14]
2 years ago
13

Simplify: 0.15(21b – 56)

Mathematics
2 answers:
Snowcat [4.5K]2 years ago
7 0
0.15 x 21b - 0.15 x 56

Answer: 3.15b - 8.4
Usimov [2.4K]2 years ago
5 0
Step 1. Change the decimal 0.15 to a fraction , 15/100

Step 2. Simplify 3/20

Step 3. 3/20 • (21b - 56)

Step 4. Pull out like factors

Answer: 21 • (3b - 8)
—————————————
20
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You have 1200 feet of fencing and you want to make two fenced in enclosures by splitting one enclosure in
NARA [144]

Let x = length and y = width

You would have 2 lengths, so 2x and 3 widths, so 3y

Those need to equal total length of fence:

2x + 3y = 1200

The 3 widths would equal total fence minus the 2 lengths:

3Y = 1200-2x

Solve for y: y = 400 -2/3x

Area = length x width = xy. Replace y :

Area = x(400-2/3x) = 400x-2/3x^2

Differentiate:

400-4x/3 =0

4x/3 = 400

4x = 1200

X = 300

Y = 400-2/3(300) = 200

The dimension would be 300 ft x 200 ft

7 0
2 years ago
A line that includes the point ( - 4, - 1) has a slope of - 2. What is its equation in point-slope form?
Grace [21]

Point slope form says the line through (a,b) with slope m is

y - b = m(x - a)

Here that's

y - - 1 = -2(x - -4)

Answer: y + 1 = -2(x + 4)



3 0
2 years ago
Read 2 more answers
Need help on this one question please
Elan Coil [88]
P(x, y) Q(x,y)
P(-2, -1) start at 0. Go to the left two squares, then go down 1 square. mark a point there
Q(2, 4) start at 0. Go to the right two squares, go up 4 squares. mark a point there.
connect two points
make a right triangle
Then use the pythereom 
4^{2} + 5^{2} = (PQ)^{2}
41 = (PQ)^{2}
\sqrt{41}  = PQ

6 0
2 years ago
State the domain and the range of each relation. Then determine whether the relation is a function.
IrinaVladis [17]

Answer:

Domain:{-6,3,4}

Range:{-2,5,6,23}

The relation is not a function.

Step-by-step explanation:

By definition, a relation is a function if each input value has only one output value.

Given the relation:

(4,23)

(3,-2)

(-6,5)

(4,6)

The domain is the set of the x-coordinates of each ordered pair (You do not need to write 4 twice):

Domain:{-6,3,4}

The range is the set of the y-coordinates of each ordered pair :

 Range:{-2,5,6,23}

Since the input value 4 has two different output values (23 and 6), the relation is not a function.

8 0
3 years ago
Read 2 more answers
This is my question!<br> Please help answer!!!
svp [43]

The x and y coordinates of point S are increased by three to get to the midpoint.

(2,1) ----> (5,4)

To get to point t increase the coordinates by three again.

(5,4) -----> (8,7)

answer: (8,7)

6 0
3 years ago
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