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Dmitriy789 [7]
3 years ago
6

I will give Brainliest :)

Mathematics
2 answers:
dezoksy [38]3 years ago
8 0

Answer:

5+k = 11

Step-by-step explanation:

"Sum of a number" means addition.

"A number k and five" means you add the variable k and 5

"Is 11" tells you that the answer will be 11

You need to add K and 5 and get 11. Use this to set up an equation. Solve for K if need be. This results in k=6 but i believe that is not part of the prompt. Happy mathing ;)

lawyer [7]3 years ago
6 0
1. k+5=11
2. 7n=42
3. l+13=17
4. 10- p²=9
5. x²+y²=4
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Find the number of ways to purchase 3 different kinds of drinks from a selectio.<br> of 10 drinks.
arsen [322]

Answer:

30

Step-by-step explanation:

If you do 3x10 it equals 30

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3 years ago
Two new devices for testing blood sugar levels have been developed. How do these devices compare? You test blood sugar levels of
Ber [7]

Answer:

The matched pairs t test.

Step-by-step explanation:

You test blood sugar levels of 20 diabetics with both devices and use B. the matched pairs t test.

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3 years ago
I need help with this plz percent equations 100% of blank = 600,000
frez [133]

Answer:

100% of 600,000 = 600,000

Step-by-step explanation:

The answer will be 600,000

Since

100% of 6,000,000 = 6,000,000 so,

100% of 600,000 = 600,000

3 0
2 years ago
Read 2 more answers
Which algebraic property is used to rewrite 2(x + 3) as 2x + 6?
max2010maxim [7]

Answer:

Distributive property.

Step-by-step explanation:

You distribute, or spread out, the 2 to each term in the parentheses.

7 0
3 years ago
Please help! I've been working on this for a few days and I just don't understand, it's due in a few hours. Thank you.
never [62]

Answer:

Part A: α = arc tan (y/x) = tan⁻¹ (y/x)

Part B: quadrant II α = arc tan (- y/x) = arc (- tan (y/x)) = - tan⁻¹ (y/x) 180°>α>90°

            quadrant III α = arc tan (-y)/(-x) = arc tan (y/x) = tan⁻¹ (y/x) 270°>α>180°

            quadrant IV α = arc tan (- y/x) = arc (- tan (y/x)) = - tan⁻¹ (y/x) 360°>α>270°

Part C: quadrant II 180°>α>90°  α = tan⁻¹ (-6/1) = - tan⁻¹ 6 = 180° - 80.53° = 99.47°

Step-by-step explanation:

PART A:

In this case we will use trigonometric function tanα to calculate angle α:

tanα = y/x => α = arc tan (y/x) = tan⁻¹ (y/x)

This formula is use in general way and in first quadrant  90°>α>0°

Part B:

But in the other quadrants you must know to use unit circle to reduce angle from II, III and IV quadrant to the first quadrant.

If angle is in the quadrant II  180°>α>90° then

tanα = - tan (180°-α)

If angle is in the quadrant III  270°>α>180° then

tanα = tan (α-180°)

If angle is in the quadrant IV  360°>α>270° then

tanα =- tan (360°-α)

Part C:

vector w (x,y) = (-1,6) this vector lies in quadrant II      180°>α>90°

180°- α = tan⁻¹ (-6/1) = - tan⁻¹ 6 = 80.53°  => 180° - α = 80.53°

α = 180° - 80.53 = 99.47°

It's not easy to understand this, but it's not easy for me to explain.

God with you!!!

5 0
2 years ago
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