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3 years ago

5(2x-7)+42-3x=2 what is the answer

Mathematics

1 answer:

Kitty [74]3 years ago

7 0

Answer:

5(2x-7)+42-3x=2

10x-35+42-3x=2

7x+7=2

7x=2-7

7x=-5

x=-5/7

the answer is (-5/7).

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3 years ago

Determine the rate of change for thw graph: $____ per mile

Ira Lisetskai [31]

Answer:

$2 per mile

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (2, 5)

Point (4, 9)

Step 2: Find slope m

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3 years ago

If you place a 10-foot ladder against the top of a 6-foot building, how many feet will the bottom of the ladder be from the bott

Anika [276]

Answer: 8 feet

Step-by-step explanation:

Draw a right triangle and label the sides using the given information. (Drawing below) Use pythagorean theorem to find the missing length:

a^2 + b^2 = c^2

(building)^2 + (missing piece)^2 = (ladder)^2

6^2 + x^2 = 10^2

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6 0

3 years ago

Please Help! One Question!

TiliK225 [7]

Here we don't know the length of the hypo, but do have measures of both legs of this right triangle: x and 40 yd.

Use the tangent function to determine the value of x:

x
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3 years ago

Solve for x. Round to the nearest tenth, if necessary. 1.8 & x

Valentin [98]

Answer:

x ≈ 1.4

Step-by-step explanation:

Using the sine ratio in the right triangle

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