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Delvig [45]
3 years ago
9

Choose the pair of numbers that is not a solution to the given equation. y = 5 - 2x

Mathematics
1 answer:
tester [92]3 years ago
4 0

Answer:

(2,5)

Step-by-step explanation:

There isn’t only one right answer, the question is an ordered pair that doesn’t fit in the equation. So just pick two random numbers and then check to make sure it doesn’t fit. The picture shows my work.

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HELP!!! DUE IN AN HOUR!!
Ulleksa [173]

Answer:

measure 3 equals 121 degrees

Step-by-step explanation:

Measure 2 and 3 make a 180 angle and you subtract 59 from 180 and you get 121.

5 0
4 years ago
Here is a tunnel for a toy train.
jonny [76]

The <em>total</em> area of all six faces of the tunnel is 614.197\pi square centimeters.

<h2>Procedure - Surface area of a tunnel for a toy train</h2>

The surface area of the solid (A) used to represent the tunnel for a toy train is the sum of its six faces (two <em>semicircular</em> sections, inner <em>semicircular</em> arc section, outer <em>semicircular</em> arc section, two rectangles).

<h3>Determination of the surface area of the tunnel based on information of the diagram</h3>

We calculate the surface area as following:

A = 2\cdot \frac{\pi}{2} \cdot [(10\,cm)^{2}-(8\,cm)^{2}] + \pi\cdot (8\,cm)\cdot (30\,cm) + \pi\cdot (10\,cm)\cdot (30\,cm) + 2\cdot (2\,cm)\cdot (30\,cm)

A = 614.197\pi\,cm^{2}

The <em>total</em> area of all six faces of the tunnel is 614.197\pi square centimeters. \blacksquare

To learn more on surface areas, we kindly invite to check this verified question: brainly.com/question/2835293

5 0
2 years ago
Joe's final exam has true/false questions, worth 2 points each, and multiple choice questions, worth 5 points each. Let x be the
mixer [17]

This is the inequality

2x + 5y ≥ 90

7 0
3 years ago
Please tell me which are correct
Marina CMI [18]
Second, third, and fifth
4 0
3 years ago
Read 2 more answers
an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.​
dolphi86 [110]

Answer:

\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

A_\triangle=\dfrac{bh}{2}

<em>b</em><em> - base</em>

<em>h</em><em> - height</em>

<em />

We need a length of a height.

Use the Pythagorean theorem:

leg^2+leg^2=hypotenuse^2

We have:

leg=5,\ leg=h,\ hypotenuse=20

Substitute:

5^2+h^2=20^2

25+h^2=400             <em>subtract 25 from both sides</em>

h^2=375\to h=\sqrt{375}\\\\h=\sqrt{(25)(15)}\\\\h=\sqrt{25}\cdot\sqrt{15}\\\\h=5\sqrt{15}\ cm

Calculate the area:

A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2

8 0
3 years ago
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