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3 years ago

What is the order of operation for 2(9 + 7)?

Mathematics

2 answers:

shepuryov [24]3 years ago

6 0

the answer is 32 because you add 9 plus 7 then you multiply tha th # by 2

Oksana_A [137]3 years ago

3 0

First do the math in the parentheses and then multiply.

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If the angles are in the ratio 2:7:11 then find the angles

german

Answer: 180 is the sum of the tringles

Step-by-step explanation:

2x+7x+11x=180

20x=180

x=9

Now you should put the the value of x to get the angles

2x=2x9=18

7x=7x9=63

11x=11x9=99

Now to double check add all of them together

99+18+63=180

Hoped I helped!

5 0

3 years ago

Find the midpoint of the segment with the following endpoints. (2,9) and (8,1)

vazorg [7]

Answer:

$\displaystyle (5,5)$

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)
Midpoint Formula: $\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

Step 1: Define

Point (2, 9)

Point (8, 1)

Step 2: Identify

(2, 9) → x₁ = 2, y₁ = 9

(8, 1) → x₂ = 8, y₂ = 1

Step 3: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute in points [Midpoint Formula]: $\displaystyle (\frac{2+8}{2},\frac{9+1}{2})$
[Fractions] Add: $\displaystyle (\frac{10}{2},\frac{10}{2})$
[Fractions] Divide: $\displaystyle (5,5)$

7 0

2 years ago

PLSSSS HELP ME!!!

Phoenix [80]

Amount of juice hold by Cup B which is in the shape of a cylinder having width 2 inches that is radius 1 inches and height 7 inches

= cubic inches

Amount of juice hold by cup A which is in the shape of a cone having width 2 inches that is radius 1 inches and height 3 inches

= cubic inches

Amount of juice that cup B will hold than cup A when both are completely full = cubic inches

= 6 × 3.14

= 18.84 cubic inches

Option A: 18.8 cubic inches

7 0

3 years ago

-2(-8) please help me

olya-2409 [2.1K]

Answer:

Its 7 hope i helped

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Mark jogged 3 5/7 km. His sister jogged 2 4/5 km. How much farther did Mark jog than his sister?

NeTakaya

Step-by-step explanation:

so therefore mark jogged 2 36/70km more than his sister

3 0

2 years ago