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3 years ago

Please help vvvvvvvvvvv

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

7 0

Answer:

Step-by-step explanation:

since you are subtracting a negative number it reverses, so you actually ADD the two together

so, 12 1/2 + 4 1/2

add the whole numbers first;

12+4=16

then fractions:

1/2 + 1/2= 1

then all together;

16+1=17!

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Determine the slope of a

AysviL [449]

Answer:

m = 3/5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m = \frac{y_2-y_1}{x_2-x_1}$
Perpendicular lines are the negative reciprocal of the given line

Step-by-step explanation:

Step 1: Define

Identify

Point G(-2, 3)

Point H(1, -2)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Line GH

Substitute in points [Slope Formula]: $\displaystyle m = \frac{-2-3}{1--2}$
[Fraction] Subtract: $\displaystyle m = \frac{-5}{3}$

Perpendicular line

Negative: $\displaystyle m = \frac{5}{3}$
Reciprocate: $\displaystyle m = \frac{3}{5}$

4 0

3 years ago

On the first math test, Keiko answered 19 out of 25 questions correctly. On the second test she got 17 out of 20 correct. On whi

jenyasd209 [6]

Answer:

shegot a better score on the second test

50 is double of 25

75is 3 times 25

100 is 4 times 25

Step-by-step explanation:

19 times 4= 76

17 times 5= 85

7 0

4 years ago

This hanger is in balance. There are two labeled weights of 5 grams and one of 33 grams. The four circles each have the same wei

kvv77 [185]

Answer:

Step-by-step explanation:

3 0

3 years ago

What are the coordinates of the points in this graph

jeka94

Answer:

(7, -5)

Step-by-step explanation:

We can see the dot, is 7 units to the right of the y axis, and 5 down from the x-axis. We then can create the coordinates because we know where it is:

If it is on the right side of the y-axis, it is positive. If it is below the x-axis, it is negative so:

(7, -5) would be the coordinate point

4 0

4 years ago

StartRoot 58 EndRoot is about greater than StartRoot 42 EndRoot.

Levart [38]

Answer:

1.135 or 17.5%

Step-by-step explanation:

√58 ≈ 7.616

√42 ≈ 6.481

7.616 -6.481 = 1.135

√58 is about 1.135 greater than √42. This is about 1.135/6.481 = 17.5% of the value of √42.

√58 is about 1.135, or 17.5%, greater than √42.

5 0

3 years ago