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amm1812
3 years ago
12

HELPPPPPPP PLEASEEEEEEEEWEEE

Mathematics
1 answer:
kolezko [41]3 years ago
3 0

Answer:C

Step-by-step explanation: slope of 0 will always be horizontal

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Simplify the following. (a) 3(-3 + 5x) - 1 (4 - 4x) (b) 3 squareroot 64 x^15 y^3 -2(-15 e^5 t/30 e^-2 t^-3)^0
Kaylis [27]

Answer:

a. 19x-13   b. 2(32x^{15}y^{3}-1).

Step-by-step explanation:

a. 3(-3+5x)-1(4-4x) = -9+15x-4+4x = 15x+4x-9-4 = 19x-13.

b. 64x^{15}y^{3}-2(-15e^{5}\frac{t}{30}e^{-2}t^{-3})^{0}

= 64x^{15}y^{3}-2 = 2(32x^{15}y^{3}-1).

6 0
3 years ago
A regression equation is obtained for a collection of paired data. It is found that the total variation is 20.711, the explained
Deffense [45]

Answer: R^{2} = 0.89

Step-by-step explanation:

Coefficient of determination is represented by R^{2}. This tells us that how much of the variation in the dependent variable is explained by the independent variable.

It is the ratio of explained variation by the independent variables to the total variation in the dependent variable.

Hence,

Coefficient of determination = \frac{Explained\ Variation}{Total\ Variation}

= \frac{18.592}{20.711}

R^{2}= 0.89

∴ 89% of the variation in the dependent variable is explained by the independent variables.

4 0
3 years ago
A barbecue restaurant gives 3 napkins for every 5 items ordered. if an order is for 30 items, how many napkins should be given?
Delicious77 [7]

Answer:

18 napkins

Step-by-step explanation:

If the restaurant gives 3 napkins for every 5 items ordered, and there's 30 items... you must divide 30 by 5 which is 6. Then, multiply 6 by 3. Therefore the answer is 18.

30  \div 5 = 6

6 \times 3 = 18

<em>Hope</em><em> </em><em>this</em><em> </em><em>helped</em><em>:</em><em>)</em>

8 0
3 years ago
Read 2 more answers
Anyone have an aswer to this?
KIM [24]
X/1 would equal -2- square root of 11 and x2 would equal -2 plus square root of 11
4 0
3 years ago
Read 2 more answers
!!!Please help will give the brainliest, and please do not put in a silly answer because you want some points or I will report y
Amanda [17]

Answer:

In short, they are all quadrilaterals.

Step-by-step explanation:

<u>Rectangle:</u>

- Every angle equals 90 degrees

- Opposite sides are equal and parallel

<u>Square:</u>

- Every angle equals 90 degrees

- Opposite sides are equal and parallel

- Diagonals within the square are perpendicular

<u>Parallelogram:</u>

- Opposite sides are equal and parallel

- Opposite angles are equal

- Any two angles next to each other have to equal 180 degrees, since it would be a line

<u>Rhombus:</u>

- Opposite angles are equal

- All sides are equal

- Opposite sides are parallel

- Diagonals within the square are perpendicular

- Any two angles next to each other have to equal 180 degrees, since it would be a line

<u>Trapedzoid:</u>

- There is only one pair of parallel lines

<u>Kite:</u>

- There are two pairs of equal signs

- There are two equal angles

- You can look at it like two equal triangles glued together

Really hope this helped you!

7 0
3 years ago
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