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3 years ago

Write a phrase for each algebraic expression. Y + 12

Mathematics

1 answer:

dybincka [34]3 years ago

4 0

A phrase for the expression is "12 more than y"

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The area of the triangle is 35 square feet. Use a quadratic equation to find the length of the base. Round your answer to the ne

Vesnalui [34]

Answer:

10.6 ft

Step-by-step explanation:

The complete question is:

The area of the triangle is 35 square feet. Use a quadratic equation to find the length of the base. Round your answer to the nearest tenth.Base=x+4 Height=x

SOLUTION:

As you know, Area of triangle 'A' = 1/2 x b x h

Where,

Base 'b' = x+4

Area 'A' = 35 ft²

Height 'h'= x

35 = (1/2)(x+4)x

35 =(x² + 4x)/2

2 * 35 =x² + 4x

70 = x² + 4x

x² + 4x - 70=0

Formula for the quadratic equation is

x = [- b ± √(b² - 4ac)]/2a

Where,

a=1, b= 4, c=-70

Plugging in the values.

x = [- 4 ± √4² - (4 × 1 × - 70)] / (2 × 1 )

x = [- 4 ± √(16 + 280)]/2

x = [- 4 ± √296]/2

x = (- 4 + 17.2)/2 or x = (- 4 - 17.2)/2

x = 13.2/2 or x = - 21.2/2

As, we choose to ignore negative value of 'x'

Therefore, x = 13.2/2 = 6.6

And, Length of the base will be:

x + 4 = 6.6 + 4 => 10.6 ft

3 0

3 years ago

2. Kyle owes his sister 24. He gives his sister $15 that he earned mowing

rusak2 [61]

ok so he is owing his sister 24 and he gives her 15

so 24-15=9

but as an addition expression it will be

x+15=24

x=24-15

x=9

3 0

3 years ago

-3 1/5 ÷ 1 3/4<br> Write your answer as a mixed number in simplest form.

Ipatiy [6.2K]

So the answer would be negative 64 over 35

5 0

3 years ago

A line crosses through the points (0,2) and (-10, -16) Which of the following is the slope of the line?

Elodia [21]

Answer:

9/5

Step-by-step explanation:

The slope between the two points can be found by ...

m = (y2 -y1)/(x2 -x1)

m = (-16-2)/(-10-0) = -18/-10

m = 9/5

The slope of the line is 9/5. Perhaps this is a match to choice A.

3 0

3 years ago

{3x - 2y = 10 <br> {2x + 3y = 11

Softa [21]

Hi there!

»»————-　★　————-««

I believe your answer is:

(4, 1)

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

~Solve by Graphing~

I graphed the given equations in a program.
The point of intersection, if the lines pass, would be the solution.
The point of intersection in the given system of equations is (4,1).
This means that (4,1) is the solution.
See the graph attached.

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

4 0

3 years ago

Read 2 more answers