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Alex
4 years ago
6

15. A scale drawing of a rectangular field has a length of 4.5 inches and a width of

Mathematics
1 answer:
jeyben [28]4 years ago
7 0

Answer:30feet

Step-by-step explanation:

To find this

We have

Scale=length on drawing over actual length

0.5/10=1.5/x

0.05x=1.5

x=30feet

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If set M =[even digits from 2 to 8]. Find n(M)​
laila [671]

Answer:

n(M) = 4

Step-by-step explanation:

M = (2,4,6,8)

n(M) = Number of values in set M.

n(M) = 4

8 0
3 years ago
How do I solve this?Farmer Ed has 1500 meters of fencing, and wants to enclose a rectangular plot that borders on a river. If fa
Dafna1 [17]

We need to find the maximum (Vertex of the function)

Let:

L = Length = 1500 - 2x

W = Width = x

The area is given by:

\begin{gathered} A=W\cdot L \\ A=x(1500-2x) \\ A=1500x-2x^2 \\ A(x)=1500x-2x^2 \end{gathered}

We can find the maximum using the following formula:

\begin{gathered} xm=-\frac{b}{2a} \\ where \\ a=-2 \\ b=1500 \\ so\colon \\ xm=-\frac{(1500)}{2(-2)}=\frac{1500}{4}=375 \end{gathered}

Evaluate the area for the value we found previously:

A(375)=-2(375)^2+1500(375)=-281250+562500=281250

The largest area that can be enclosed is 281250m²

4 0
1 year ago
Izzy's heartbeat rate was measured on an EKG machine. After conversion, the function produced could be modeled by a sine functio
Amanda [17]
First, we calculate the amplitude
A = (1/2) (xmax - xmin)
A = (1/2) (8 - (-2)) = 5

Since we're given with the period which is pi, then the coefficient of x is just 1. So, the model is
y = 5 sin x
8 0
4 years ago
Read 2 more answers
1
lys-0071 [83]

Answer:

625

Step-by-step explanation:

5x5x5x5=625

you multiply five four times because there are four groups of three in twelve

8 0
4 years ago
A road is 4 cm long on the map. Find the actual length of the road.
Usimov [2.4K]

The distance between two cities is

75

k

m

s

.

Explanation:

As a road of

4

c

m

.

on road map indicates a road of length equal to

30

k

m

.

Each

c

m

.

on map indicates

30

4

=

7.5

k

m

s

.

Hence a distance of

10

c

m

.

between two cities on the map indicates

7.5

×

10

=

75

k

m

s

7 0
3 years ago
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