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3 years ago

PLEASE I'M falling in math class, please help me please

Mathematics

1 answer:

Mariulka [41]3 years ago

6 0

Answer:

Plane R

Plane DEG

Plane FDG

Plane FEG

Step-by-step explanation:

You can name the plane by the script letter "R", and you can name the plane with any three co-linear points on the plane

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Multiply 2m+(-n) by -3m+(-5)

galben [10]

Answer:

2m+3mn-5

Step-by-step explanation:

2m+n x 3m + (-5)

2m +3mn + (-5)

2m +3mn -5

3 0

4 years ago

the shop keeper at an inn receives 175 letters a week (7 days). How many letters does he receive in a day

svlad2 [7]

Answer:

Step-by-step explanation:

175 divided by 7 =25

4 0

3 years ago

Read 2 more answers

Find the equation of the line which passes through the point (-4,12) and is perpendicular to the given line. Express your answer

Vika [28.1K]

Answer:

y = 1/7x + 88/7

Step-by-step explanation:

y = mx +b

since it is perpendicular you have to get the negative reciprocal of the slope which is 1/7

y = 1/7x + b then you would plug in your points

12 = 1/7(-4) + b and then solve for b

12 = -4/7 + b

+ 4/7

88/7 = b

y = 1/7x + 88/7

8 0

3 years ago

What is the distance between point A and point B? Round to nearest tenth.

Sergeu [11.5K]

Answer:

$d \approx 12.6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra II

Distance Formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point A (-4, 2)

Point B (8, 6)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d.

Substitute [DF]: $d = \sqrt{(8+4)^2+(6-2)^2}$
Add/Subtract: $d = \sqrt{(12)^2+(4)^2}$
Exponents: $d = \sqrt{144+16}$
Add: $d = \sqrt{160}$
Simplify: $d = 4\sqrt{10}$
Evaluate: $d = 12.6491$
Round: $d \approx 12.6$

7 0

3 years ago

Write 3 ½% as a fraction

jeka57 [31]

Answer:

7/200

Step-by-step explanation:

3.5% = 3.5/100 = (3.5/100)×(2/2) = 7/200

_____

The % symbol is a shorthand way to write "/100", so 3.5% = 3.5/100.

3 0

4 years ago

PLEASE I'M falling in math class, please help me please ​

PLEASE I'M falling in math class, please help me please