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3 years ago

Which equation has the correct sign on the product

Mathematics

2 answers:

DanielleElmas [232]3 years ago

7 0

Answer:

Step-by-step explanation:

sammy [17]3 years ago

7 0

B since a negative and a positive makes a negative. (plz give me brainliest)

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G the population of a town today is 48000 people. if the population decreases with a constant rate of change and the decrease is

tiny-mole [99]

The population in ten years will be 208,000

5 0

3 years ago

The perimeter of a rectangle is 50 cm and the length is 4 cm longer than the width. Write and solve the system of equations usin

laila [671]

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3 years ago

A farmer plans to fence a rectangular corral. The diagonal distance from one corner of the corral to the opposite corner is five

garik1379 [7]

Answer:

Length of diagonal is 7.3 yards.

Step-by-step explanation:

Given: The diagonal distance from one corner of the corral to the opposite corner is five yards longer than the width of the corral. The length of the corral is three times the width.

To find: The length of the diagonal of the corral.

Solution: Let the width of the rectangular garden be <em>x</em> yards.

So, the length of the diagonal is $x+5$

width of the rectangular corral is $3x$

We know that the square of the diagonal is sum of the squares of the length and width.

So,

$(3x)^{2} +x^{2} =(x+5)^{2}$

$9x^{2} +x^{2} =x^{2}+10x+25$

$9x^{2}-10x-25=0$

$x=\frac{-b\pm\sqrt{b^{2} -4ac} }{2a}$

$x=\frac{10\pm\sqrt{(-10)^{2} -4(9)(-25)} }{2(9)}$

$x=\frac{10\pm\sqrt{100}}{18}$

Since, side can't be negative.

$x=\frac{5}{9}+\frac{5}{9}\sqrt{10}$

Now, length of the diagonal is

$5+\frac{5}{9}+\frac{5}{9}\sqrt{10}$

Hence, length of diagonal is 7.3 yards.

4 0

3 years ago

If p=8×10^5, 5×10^−2. Find p×q

finlep [7]

Where is q? What should i do?

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2 years ago

Calculate the length CD. <br>I need to understand how to do it, can someone help me please?

kolbaska11 [484]

Answer:

77.6m (3 s.f.)

Step-by-step explanation:

Please see the attached pictures for full solution.

8 0

3 years ago