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3 years ago

Evaluate and match each expression on the left to its value on the right, when x=4 and y=7 .

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

5 0

Step-by-step explanation:

a. 12 + 4 = 16

1st left equation is matched to 4th right value

b. 3(4) + 7 = 19

2nd left equation is correctly matched to 2nd right value

c. 4(7) - 10 = 18

3rd left equation is matched to 1st right value

d. 1 / 2 × xy

1 / 2 × (4 × 7)

= 28 ÷ 2

= 14

4th left equation is matched to 3rd right value

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Semenov [28]

<h2>Solution -</h2>

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m = d - b/ c - a

<h3>So, on substituting the values, we get </h3>

m = 4 - 3 / 1 - 0 = 1/1 = 1

Also, line makes an intercept of 3 units in positive direction of y - axis.

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<h3>Alternative Method :-</h3>

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Equation of line parallel to y - axis passes through the point (a, b) is x = a.

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<h3>3. Slope-intercept form equation of line</h3>

Equation of line which makes an intercept of c units on y axis and having slope m is y = mx + c.

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2 years ago

¾ is considered a real and rational number. true or false?

allochka39001 [22]

IT is True.
<span>¾ is considered a real number</span>

3 0

3 years ago

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Here is an equilateral triangle. The length of each side is units. A height is drawn. In an equilateral triangle, a line drawn f

Temka [501]

1. Height of the equilateral triangle is: √3 units

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<h3>What is an Equilateral Triangle?</h3>

A triangle that has all its three sides equal in length, is referred to as an equilateral triangle.

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h = √(2² - 1²)

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Learn more about equilateral triangle on:

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2 years ago

An English class attended a performance at the theater. The class took 25 students and 3 adults. Each student ticket, s, cost $3

Mashcka [7]

Answer:

A or d to narrow it down

Step-by-step explanation:

Hopefully you can figure out which one I am sorry.

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3 years ago

I think it’s b but I may be wrong

leonid [27]

Answer:

D, not B

Step-by-step explanation:

So using Pythagorean Theorem:

$C^{2} =A^{2} +B^{2} \\x^{2} =144+265\\x^{2} =400\\x=20$

Yep, It's not B, But D.

Hope this helps!

Stay Safe!

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3 years ago