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Gnesinka [82]
3 years ago
13

Simplify each expression using the order of operations. Then, match the expression (term) on the left with its solution (definit

ion) on the right.
Match Term Definition

−5 − (32 +2) A) 28

22 − 3 ⋅ 6 B) 29

−2 + 4 ⋅ 32 − 6 C) −14

5 + 42 ÷ 2(3) D) −16

Mathematics
2 answers:
Scilla [17]3 years ago
6 0

Answer:

-5 - (3^2 +2)       D) −16

2^2 - 3 \cdot 6             C) −14

-2 + 4 \cdot 3^2 - 6     A) 28

5 + (4^2 \div 2)(3)      B) 29

Step-by-step explanation:

Order of operations:

B  - Bracket

O - Of

D- Division

M-Multiplication

A-Addition

S-Subtraction

1)-5 - (3^2 +2)    

Solving the expression using rule

\Rightarrow -5 - (9+2)  

\Rightarrow -5 - (9+2)  

\Rightarrow-16  

So, D) −16 is the solution of -5 - (3^2 +2)    

2)2^2 - 3 \cdot 6

\Rightarrow 4 - 18

\Rightarrow -14

So, C) −14 is the solution of 2^2 - 3 \cdot 6

3)-2 + 4 \cdot 3^2 - 6

\Rightarrow - 2 + 4 \cdot 9 - 6

\Rightarrow - 2 +36 - 6

\Rightarrow 28

So,  A) 28 is the solution of -2 + 4 \cdot 3^2 - 6

4) 5 + (4^2 \div 2)(3)

\Rightarrow 5 +(16 \div 2)(3)

\Rightarrow 5 +(8)(3)

\Rightarrow 5 +24

\Rightarrow 29

So, B) 29 is the solution of 5 + (4^2 \div 2)(3)

katovenus [111]3 years ago
5 0
I hope this helps you

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skelet666 [1.2K]

Answer:

DG = 30

Step-by-step explanation:

Given:

DH = 6

DE = 4

EF = 16

Required:

DG

Solution:

DG = DH + HG

DG = 6 + HG

Let's find HG

Given that HE is parallel to the third side of ∆DGF, based on the side-splitter theorem, the other two sides of ∆DGF are divided proportionally.

Therefore,

DH/HG = DE/EF

6/HG = 4/16

Cross multiply

HG*4 = 16*6

HG = 96/4

HG = 24

✔️DG = 6 + HG

DG = 6 + 24

DG = 30

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3 years ago
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3 years ago
NutritionCalc Plus uses the equations from the National Academy of Medicine to calculate the Estimated Energy Requirement (EER)
olga nikolaevna [1]

Answer:

The correct option is (A).

Step-by-step explanation:

The equation for the Estimated Energy Requirement (EER) of 19 or more years older men is:

EER = 662 - (9.53 \times AGE) + PA \times (15.91 \times WT + 539 \times HT)

Here,

AGE = age counted in years

PA = appropriate physical activity factor

WT = weight in kilograms

HT = height in meters

The physical activity factor for men and women is:

Activity Level       PA (men)      PA (Women)

Sedentary              1.00                1.00

    Low                    1.11                1.12

  Active                   1.25                1.27

Very Active              1.48                1.45

Given:

AGE = 22 year-old male college student

PA = low = 1.11

WT = 180 pounds = 81.6466 kg

HT = 5'10" = 1.778 m

Compute the value of EER as follows:

EER = 662 - (9.53 \times AGE) + PA \times (15.91 \times WT + 539 \times HT)

        = 662 - (9.53 \times 22) + 1.11 \times (15.91 \times 81.6466 + 539 \times 1.778)\\\\=662-209.66+1.11\times (1298.997406+958.342)\\\\=452.34+2505.64674066\\\\=2957.98674066\\\\\approx 2962

Thus, the EER for a 22-year-old male college student is approximately 2962 kcal.

The correct option is (A).

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horrorfan [7]

Answer:

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Step-by-step explanation:

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3 years ago
An appliance repair shop charges $80 for the first hour of labor and $65 for each additional hour. The total labor charge for an
VikaD [51]

Answer:

C. 80+65x=665

The total repair time is 9 hours.

Step-by-step explanation:

The first hour is $80, no matter what. That is the first part of your equation.

x = the number of hours minus 1.

It would be -1 because it is $65 per ADDITIONAL hours, after the first hour.

So that would be 65x, because you don't know the number of hours it took (yet), but you know that it would be $65 per extra hour.

So you have your equation: 80+65x=665

1. Get rid of subtraction/addition.

You want to get rid of the number from both sides. It's subtracting 80 and not adding 80 because the 80 is positive, and you want to cancel out that 80.

80+65x=665

-80           -80

You are left with 65x=585

2. Get rid of multiplying/dividing.

Here, we want to get the variable by itself, so we will have to divide the 65x by 65. You want to do the opposite operation to cancel the 65 out.

65x=585

65x/65 = 585/65

You are left with x = 9

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