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LekaFEV [45]
3 years ago
8

If 9: x = x:4, then x =

Mathematics
1 answer:
IceJOKER [234]3 years ago
4 0

Answer:

Step-by-step explanation:

9:x = x :4

Product of mean =  product of extremes

x *x = 9*4

x² = 36

x² = 6²

x = 6

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A company plans to enclose three parallel rectangular areas for sorting returned goods. The three areas are within one large rec
Svetlanka [38]

Answer:

The largest total area that can be enclosed will be a square of length 272 yards.

Step-by-step explanation:

First we get the perimeter of the large rectangular enclosure.

Perimeter of a rectangle =2(l + w)

Perimeter of the large rectangular enclosure= 1088 yard

Therefore:

2(L+W)=1088

The region inside the fence is the area

Area: A = LW

We need to solve the perimeter formula for either the length or width.

2L+ 2W= 1088 yd

2W= 1088– 2L

W = \frac{1088-2L}{2}

W = 544–L

Now substitute W = 544–L into the area formula

A = LW

A = L(544 – L)

A = 544L–L²

Since A is a quadratic expression, we re-write the expression with the exponents in descending order.

A = –L²+544L

Next, we look for the value of the x coordinate

L= -\frac{b}{2a}

L= -\frac{544}{2X-1}

L=272 yards

Plugging L=272 yards into the calculation for area:

A = –L²+544L

A(272)=-272²+544(272)

=73984 square yards

Thus the largest area that could be encompassed would be a square where each side has a length of 272 yards and a width of:

W = 544 – L

= 544 – 272

= 272 yards

7 0
3 years ago
Sam buys a DVD player for $55. 95 and it is on sale for 40% off regular price. How much money will same save
Lelu [443]

Answer:

$ 22.38

Step-by-step explanation:

If the pre-sale price is $ 55.95

 40 % of this would be  .4 * 55.95 =  $ 22.38

6 0
2 years ago
Cynthia ran 4 laps in 40 minutes. Which ratio represents the number of laps ran to minutes?
poizon [28]
4:40 simplifies into 1:10
4 0
3 years ago
Please help!! What is the equation of this line in slope-intercept form? <br><br>(see picture)​
faust18 [17]

Answer:

you answer is B

Step-by-step explanation:

I am almost 100% sure it is B but correct me if im wrong

5 0
3 years ago
. Add 91, 129, and 16, and then divide by 44
irga5000 [103]

Answer: 5.36363636364

Step-by-step explanation:

91+ 129+ 16=236

236 ÷44= 5.36363636364

3 0
2 years ago
Read 2 more answers
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