WILL GIVE BRAINLIEST!!!!! 30 POINTS!!! Expression 1
6x7-3^2x9+4^3

Expression 2
5+4x2+6-2x2-1

(a) What is the value of Expression 1?
(b) Insert parenthesis in Expression 2 so that it has a value 19. Then show why your expression has a value of 19.

PLEASE EXPLAIN IN GREAT DETAIL!!! IF YOU DON'T SHOW YOUR WORK/STEPS I WILL NOT GIVE BRAINLIEST!

Answers

Answer 1

Answer: Expression 1 (E1)
$6 * 7 - {3}^(2 * 9) + {4}^(3)$
Let's Simplify E1
$42- {3}^(18) + 64 \n 42 - 38742089 + 64 \n = - 387420383$
E1, is just simply combining like terms. Plus an expression in math, is simply something that doesn't equal anything, moreover a phrase.

Expression 2 (E2)
$5 + 4 * 2 + 6 - 2 * 2 - 1$
Without Parenthesis, the expression's value is
$5 + 4 * 2 + 6 - 2 * 2 - 1 \n 5 + 8 + 6 - 4 - 1 \n 13 + 6 - 4 - 1 \n 19 - 4 - 1 \n 14$
With Parentheses, you'll get
$5 + 4 * 2 + 6 - 2 * 2 - 1 \n (5 + 4 )* 2+ 6 -2 * 2- 1 \n ((9) * 2) + 6 - 2 * 2 - 1 \n (18) + 6 - 2 * 2 - 1 \n (24) - 2 * 2 - 1 \n (24) - 4 - 1 \n 19$
In E2, you expression first has a value of 14 due to the order of operations, PEMDAS (Please Excuse My Dear Aunt Sally) standing for Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. When using the order operations before the parentheses, multiplication is done first before 5 is added to 4, order states that 4 must be multiplied by 2 first before addition. However, when placing a parentheses around 5 plus 4 we are now multiplying the value of that expression, (5+4), by 2, so it becomes 9×2, because the order of operations must be followed.

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Need to know if i answered this correctly Asap!! It's multiplying Matrices.

Answers

Yes, that is correct. I checked it on my calculator. Good job!

if asap i do 20 characters for spam filter and

yes it is

Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribution with a mean of 14 g/dL and a standard deviation of 1. From the given data, we can conclude that about people have hemoglobin levels less than 13, and about people have hemoglobin levels greater than 14.

Answers

Since the data follows a normal distribution, the 68-95-97 rule can be used to describe the number of people falling under N standard deviations from the mean. Since the standard deviation is 1, hemoglobin levels of 13 -15 g/dL contains 68% of the sample, or 136 people. This means the 32 people have less than 13 g/dL and 32 people have more than 15 g/dL.

Answer:

Step-by-step explanation:

took the test and got it right

The sum of two consecutive odd integers is 236. What is smaller integers

Answers

I'll say the first integer is x. The next consecutive odd number would be x+2. If the sum of the odd integers is 236, the equation would be
x + (x + 2) = 236
solve for x
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subtract 2 from each side of the equation
2x = 234
divide both sides by 2
x = 117
117 is the first odd integer. to find the other integer (x + 2), substitute 117 for x, and you have 117 + 2, which equals 119
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Solve the equation 8x-12=5x+15

Answers

8x-12=5x+15
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8x=5x+27
subtract 5x from both sides

3x=27
divide by 3

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8x = 5x + 27 Add 12 to both sides

3x = 27 Subtract 5x from both sides

x = 9 Divide both sides by 3

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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answers

Answer:

Step-by-step explanation:

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