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Y_Kistochka [10]
2 years ago
9

Write an expression for the sequence of operations described below.

Mathematics
2 answers:
Dovator [93]2 years ago
8 0
It would be (6-10)-a
I think ?
Anna [14]2 years ago
3 0

Answer:

a - (6-9)

Hopefully this is correct

Step-by-step explanation:

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A, B & C form a triangle where Z BAC = 90°.
zhannawk [14.2K]

Answer:

BC ≈ 8.6

Step-by-step explanation:

Using Pythagoras' identity in the right triangle , that is

BC² = AB² + AC² = 7.3² + 4.6² = 53.29 + 21.16 = 74.45 ( square root both sides )

BC = \sqrt{74.45} ≈ 8.6 ( to 1 dec. place )

8 0
2 years ago
What is the equation of the line that passes through the points (1, –1) and (3, –7)
Akimi4 [234]

Answer:

y = -3x + 2

Step-by-step explanation:

To find the slope of an equation you can do (y2-y1)/(x2-x1). Plug the values in from the equation and you get (-1+7)/(1-3), or 6/-2. This means the slope is -3. Then you plug the values of y and x into an equation y = -3x + b, and you get -1 = (-3)1 + b. Solve for b. -1 = -3 + b, (add 3 to each side) 2 = b. Then plug b back into your equation and you get y = -3x + 2

6 0
3 years ago
Read 2 more answers
Deanna gets 3 problems incorrect on her math quiz and scores 85%. How many questions were on the quiz?
katrin2010 [14]

Answer:

There were 20 questions on the quiz

Step-by-step explanation:

In this question, we are concerned with knowing the number of questions on a quiz, given that Deana had a certain percentage after scoring an amount of marks.

We proceed as follows;

Let the number of questions on the quiz be X.

Now, she got 85% by making 3 incorrect choices. This means the percentage of questions she got incorrectly would be 100-85 = 15%

what we are saying is that it is just 15% of her questions that were wrong.

This mathematically;

15% of x = 3

15/100 * x = 3

15x = 3 * 100

15x = 300

x = 300/15

x = 20

5 0
3 years ago
F(x)=5x-1<br> Domain {-1,0,1,2}<br> Find the range:
Katena32 [7]

Answer:

Step-by-step explanation:

Putting the values in F(x)=5x-1

= -6,-1,5,9

Range =highest -lowest =9--6

=15

3 0
3 years ago
Change 46% into fraction​
PSYCHO15rus [73]

Answer:

46/100 = 23/50

Step-by-step explanation:

I hope this helped plzz mark me as brainliest plzzzz

7 0
3 years ago
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