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mihalych1998 [28]
3 years ago
6

Order of operations 7+6[-2]-5=

Mathematics
1 answer:
timofeeve [1]3 years ago
8 0

Order of operations is Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right)

7 + 6[-2] - 5

First, multiplication. Multiply 6 by -2. You get -12

7 - 12 - 5

Now, all that’s left is subtraction. Subtract from left to right, so subtract 7 and 12 first. 7-12= -5

-5 - 5

Now just solve the rest of it. -5 minus 5 is -10.

The final answer is -10

If you have any further questions feel free to ask.

Hope this helps.

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PLEASE HELP!!! TIMED QUESTION!!! NOT A TEST NOR QUIZ!!!!
natita [175]

Answer:

LCD=280

Step-by-step explanation:

Equivalent Fractions with the LCD

1/8 = 35/280

2/7 = 80/280

4/5 = 224/280

Solution:

Rewriting input as fractions if necessary:  1/8, 2/7, 4/5

For the denominators (8, 7, 5) the least common multiple (LCM) is 280.

LCM(8, 7, 5)

Therefore, the least common denominator (LCD) is 280.

Calculations to rewrite the original inputs as equivalent fractions with the LCD:

1/8 = 1/8 × 35/35 = 35/280

2/7 = 2/7 × 40/40 = 80/280

4/5 = 4/5 × 56/56 = 224/280

8 0
3 years ago
For each ordered pair, determine when weather it’s a solution to 7x -6y=19
kumpel [21]
<h3>Answer:</h3>

Options A and B

<h3>Solution:</h3>
  • In order to determine whether or not an ordered pair is a solution to an equation, plug in the values of x and y:
  • 7x-6y=19
  • 7(7)-6(5)=19
  • 49-30=19
  • 19=19
  • We have a true statement. Therefore, the ordered pair is a solution to the equation 7x-6y=19.
  • Let's try the other ordered pairs.
  • 7(1)-6(-2)=19
  • 7+12=19
  • 19=19
  • Here's another true statement.
  • Let's check the remaining two options:
  • 7(-5)-6(3)=19
  • -35-18=19
  • -53≠19
  • Here we have a false statement.
  • 7(-4)-6(0)=19
  • -28-6=19
  • -34≠19
  • Therefore, the ordered pairs that make this equation true are (7,5) and (1,-2)

Hope it helps.

Do comment if you have any query.

7 0
3 years ago
28z2 – 7x2 + 14xy – 7y
victus00 [196]

Answer:

What is the question..

I think this question is lack of information.

write complete question.okay

5 0
3 years ago
Rain and Hantavirus in Mice Hantavirus is carried by wild rodents and causes severe lung disease in humans. A recent study1 on t
Vesna [10]

Answer:

The overview of the given situation is described in the explanation segment below.

Step-by-step explanation:

  • By the details received, the reference variable becomes actual prevalence or occurrence of another virus whereas the descriptive variable becomes precipitation 'Precipitation compensated for 79% throughout variability with prevalence.'

As we know that the determination's coefficient will be:

⇒  R^2

(Percent of variance in the answer variable described by the explanatory variable).

Now the correlation among the two variables will be:

As we know,

⇒  r^2=R^2

⇒  r^2=0.79

⇒  r=\sqrt{0.79}

⇒  r=0.889

8 0
3 years ago
???????????????????????
qwelly [4]
Answer is B
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