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3 years ago

Simultaneous Equation (x+5)(x+2)=65 , xy=24 Plssss help me ✌

Mathematics

1 answer:

Ne4ueva [31]3 years ago

7 0

Answer:

(-11.70, -2.05), (4.70, 5.10)

Step-by-step explanation:

Given equations

(x+5)(x+2)=65
xy=24

Solving the first equation for x:

(x+5)(x+2)=65
x^2 + 7x + 10 = 65
x^2 + 7x - 55 = 0
x = (-7 ± √(49+4*55))/2
x = -11.70, x = 4.70

Then solving for y:

y= 24/(-11.7) = -2.05
y = 24/4.7 = 5.10

Solution set:

(-11.70, -2.05), (4.70, 5.10)

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A can is 4 inches wide and 8 inches tall. To the nearest whole number, what is the area of a label that wraps around the can if

Yakvenalex [24]

Answer:

The area of a label is $62.8\ in^{2}$

Step-by-step explanation:

we know that

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4 years ago

Volume and Surface Area Math help 100 points

kondor19780726 [428]

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3 years ago

Read 2 more answers

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barxatty [35]

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Step-by-step explanation:

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3 years ago

I need help with this question ASAP ! ASAP!!!!!! PLEASE!

irina1246 [14]

Answer:

One Triangle = 2.09 in²

Two Triangles = 4.18 in²

Rectangle = 17.48 in²

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Step-by-step explanation:

Since it was not clarified which region is shaded we will just find the area of each individual part of the shape.

Let's start with the triangles.

1. To find the area of a triangle, the formula is $\frac{1}{2} b*h$ . It is given that the base of one triangle is equal to 1.1 in and the height is equal to 3.8 in., so in the equation, it would look like:

$\frac{1}{2} * 1.1 * 3.8 = 2.09$ in²

2. So now that we know one triangle is equal to 2.09 in², we now know that the other triangle is equal to the same area. To find the total of the two triangles you need to multiply the area by 2:

$2.09 *2=4.18$ in²

Moving on to the rectangle...

1. To find the area of the rectangle we need to use the formula base times height or b x h. It is given that the height is 3.8 in while the length is 4.6 in. So in the equation it would look like:

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2 years ago

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Nimfa-mama [501]

9514 1404 393

Answer:

4·10 +4·5 = 6·12 -6·2

Step-by-step explanation:

Each outside factor multiplies each inside term.

4(10 +5) = 6(12 -2)

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3 years ago