MATHEMATICS HIGH SCHOOL

What is 5k+(-2k)-(-1)

Answers

Answer 1

Answer:

Answer:

Brainliest goes to me!

Step-by-step explanation:

5k-2k+1

3k+1

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Simplify -78 ÷ (-9)(Write answer as a mixed number: whole and fraction remaining.)

Answers

Answer:

8 2/3

Y-E-E-T

Step-by-step explanation:

-78 divded by (-9)

-78

-----

-9

there are negatives on both sides. I don't know how to explain that but you can change it to a PLUS.

78/9

divide 3 on both sides

78/3 =26

9/3=3

26/3 now.

so the mixed number would be 8 2/3

8 and 2/3
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Which type of conic section is described by the following equation? Please helpppp plzzzz

Answers

Answer: Choice F. Hyperbola opening up and down.

======================================================

Explanation:

The subtraction symbol between the two fractions indicates right off the bat that we're dealing with a hyperbola. The question now is "How does it open? Does it open up/down? Or does it open left/right?"

To answer this new question, we just need to look at which fraction is negative. The fraction with x in it is negative, so that means the y fraction is positive. The y fraction being positive is the indication of the hyperbola opening up/down.

What is the greatest possible error if Irina measured the weight of her dog as 13 pounds?0.1 pounds
0.5 pounds
12.5 pounds
13.5 pounds

Answers

Answer:

Option B is the correct answer.

Step-by-step explanation:

Irina measured the weight of her dog as 13 pounds.

If value is 13 she rounded the values in between 12.5 to 13.49 to 13 pounds.

Maximum possible error = 13 - 12.5 = 0.5 pounds.

Maximum possible error = 0.5 pounds.

Option B is the correct answer.

Solve the equation. x + 1/6 = 6 A. x = -6 1/6 B. x = -5 5/6 C. x = 5 5/6 D. x = 6 1/6

Answers

The answer is C because 5/6+1/6=1. Then you do 1+5=6. And 6 is what you wanted to get. Hope this helped.

Answer:

x = 5 5/6

Step-by-step explanation:

The goal in algebra is always to isolate the variable, so that its value can be determined.

Step 1: Subtract 1/6

x = 5 5/6

Step 2: Check

5 5/6 + 1/6 = 6

6 = 6 ✔

Step 3: Answer

x = 5 5/6

I'm always happy to help :)

Which inequality will have a dashed boundary line with a shaded area above its graph? 7x − y ≤ 3 x − y ≤ 4 2x − 9y > 2 4x + 7y > 3

Answers

above the graph

look at them

7x-y <3
x-y<4
2x-9y>2
4x+7y>3

dashed boundary line means it does't include htat means taat the symbol is < or >

cross out first 2

one way is to graph the lines as equations and shade accordingly

2x-9y>2
y<2/9x+2/9
shade on bottom

4x+7y>3
y>-7/4x+3/9
shade on top

aswer is 4x+7y>3

Answer:

its D

Step-by-step explanation:

Solve the following proportion for u.
17/13=u/4