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2 years ago

Evaluate 16 • 1 + 4(18 ÷ 2 – 9)

Mathematics

2 answers:

Hunter-Best [27]2 years ago

8 0

Answer:

Step-by-step explanation:

I did this in 7th grade and had the answer but I don't know the steps

tiny-mole [99]2 years ago

7 0

Answer: remember PEMDAS (parentheses, exponents, multiplication, division, addition, and subtraction. Multiplication and division)

answer is 16

Step-by-step explanation:

16×1+4(18÷2−9)

(Multiply 16 and 1 to get 16.)

16+4(18÷2−9)

(Divide 18 by 2 to get 9.)

16+4(9−9)

Subtract 9 from 9 to get 0.

16+4×0

Multiply 4 and 0 to get 0.

16+0

Add 16 and 0 to get 16.

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In June, Ryan sold twice as many newspaper subscriptions as George. In July, Ryan sold 5 fewer subscriptions than he did in June

ArbitrLikvidat [17]

:P kinda tricky The way you wrote it

8 0

2 years ago

Use the properties of exponential and logarithmic functions to solve each system. Check your answers.

BlackZzzverrR [31]

The solved logarithmic function is 2x - y = e and x + y = 8 for log (2x - y) = 1 and log (x + y) = 3 log 2 respectively.

What is a logarithmic and exponential function?

Logarithmic functions and exponential functions are inverses of each other. The logarithmic function is denoted by using the word log while exponential by using the alphabet, e. For example log 10 = 1 and e^2.

Solving the given expressions: log (2x - y) = 1 and log (x + y) = 3 log 2

Applying given properties of logarithmic and exponential function;

log a + log b = log (ab)

4 log x = log x⁴

e^(log x) = 1

e^(x + y) = (e^x) × (e^y)

Take expression, log (2x - y) = 1

Applying exponential on both sides, we get,

e^(log 2x - y) = e^1

2x - y = e

To Check Results,

Taking logarithm both sides,

log (2x - y) = log e

log (2x - y) = 1

Thus, the answer is verified.

Take expression, log (x + y) = 3 log 2

Applying exponential on both sides, we get,

e^(log (x + y) = e^(3 log 2)

x + y = e^(log 8)

x + y = 8

To Check Results,

Taking logarithm both sides,

log (x + y) = log 8

log (x + y) = 3 log 2

Thus, the answer is verified.

Hence, the solved expression is 2x - y = e and x + y = 8 for log (2x - y) = 1 and log (x + y) = 3 log 2 respectively.

To learn more about the logarithmic and exponential functions, visit here:

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3 0

1 year ago

SOMEONE PLEASE HELP!!!Which of the following represents the synthetic division form of the long

UkoKoshka [18]

Answer:

Choice C

Step-by-step explanation:

When setting up synthetic division you do:

x-5=0

x=5

and get the numerator's coefficients:

1, -3, 4

so that's 5 | 1 -3 4

7 0

2 years ago

Read 2 more answers

What is the difference bn Segment CD and CD?

forsale [732]

Answer:

Sometimes, the symbol – written on top of two letters is used to denote the segment. This is line segment CD (Figure 1 ). Figure 1 Line segment. It is written CD (Technically, CD refers to the points C and D and all the points between them, and CD without the refers to the distance from C to D.)

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

The following probability distributions of job satisfaction scores for a sample of information

kodGreya [7K]

Answer:

a. 4.05 b. 3.84 c. 1.2475 and 1.1344 d. 1.1169 and 1.0651 e. We can say that the overall job satistaction of senior executives and middle managers is about 4; however, there is more variability in the job satisfaction for senior executives than in the job satisfaction for middle managers.

Step-by-step explanation:

a. (1)(0.05)+(2)(0.09)+(3)(0.03)+(4)(0.42)+(5)(0.41) = 4.05

b. (1)(0.04)+(2)(0.1)+(3)(0.12)+(4)(0.46)+(5)(0.28) = 3.84

c. We compute the variances as follow: $[(1)^2(0.05)+(2)^2(0.09)+(3)^2(0.03)+(4)^2(0.42)+(5)^2(0.41)] - 4.05^2$ = 1.2475 and $[(1)^2(0.04)+(2)^2(0.1)+(3)^2(0.12)+(4)^2(0.46)+(5)^2(0.28)]-3.84^2$ = 1.1344

d. The standard deviation is the squared root of the variance, therefore, we have $\sqrt{1.2475} = 1.1169$ and $\sqrt{1.1344} = 1.0651$

e. The expected value of the job satisfaction score for senior executives is very similar to the job satisfaction score for middle managers. We can say that the overall job satistaction of senior executives and middle managers is about 4; however, there is more variability in the job satisfaction for senior executives than in the job satisfaction for middle managers.

4 0

3 years ago