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3 years ago

NEED HELP PLS thank u

Mathematics

2 answers:

Mandarinka [93]3 years ago

7 0

Hey I can help. Do u still need it?

mojhsa [17]3 years ago

5 0

1. 5/9

2. 3/8

3. -0.5 OR - 1/2

4. 1/5

5. - 1/9

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Ann needs 42 feet of fabric to make a small quilt. How many yards of fabric should she buy?

kifflom [539]

First find how many feet are there in a yard
3 ft in a yard

then divide
42/3= 14
So 14 yards is your answer

3 0

3 years ago

Read 2 more answers

HELLPPPPP!! i need help with this taking a test

vivado [14]

Answer:

$trapezoid$

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3 0

3 years ago

E^y*cos x = 1 + sin(xy)

lys-0071 [83]

I assume you are studying implicit differentiation. Solving for dy/dx.
For the Left side use product rule. For Right side, use chain rule. Remember any time you take derivative of "y-term" you must multiply it by dy/dx.

---> $\frac{dy}{dx} e^y cos (x) - e^y sin(x) = (y + x \frac{dy}{dx}) cos (xy)$

Get dy/dx terms on one side:
$\frac{dy}{dx} e^y cos (x) - \frac{dy}{dx} x cos(xy) = e^y sin(x) + y cos (xy)$

Factor out dy/dx and solve:
$\frac{dy}{dx} (e^y cos (x) - x cos(xy)) = e^y sin(x) + y cos (xy) \\.......\\ \frac{dy}{dx} = \frac{e^y sin(x) + y cos (xy) }{e^y cos (x) - x cos(xy)}$

8 0

3 years ago

20 POINTS! You are planning to use a ceramic tile design in your new bathroom. The tiles are equilateral triangles. You decide t

Margarita [4]

Answer:

210.33 cm^2

Step-by-step explanation:

We know that 6 equilateral triangles makes one hexagon.

Also, an equilateral triangle has all its sides equal.

If the tile of each side of the triangular tile measure 9 cm, then the height of the triangular tiles can be gotten using Pythagoras's Theorem.

The triangle formed by each tile can be split along its height, into two right angle triangles with base (adjacent) 4.5 cm and slant side (hypotenuse) of 9 cm. The height (opposite) is calculated as,

From Pythagoras's theorem,

$hyp^{2} = adj^{2} + opp^{2}$

substituting, we have

$9^{2} = 4.5^{2} + opp^{2}$

81 = 20.25 + $opp^{2}$

$opp^{2}$ = 81 - 20.25 = 60.75

opp = $\sqrt{60.75}$ = 7.79 cm this is the height of the right angle triangle, and also the height of the equilateral triangular tiles.

The area of a triangle = $\frac{1}{2} bh$

where b is the base = 9 cm

h is the height = 7.79 cm

substituting, we have

area = $\frac{1}{2}$ x 9 x 7.79 = 35.055 cm^2

Area of the hexagon that will be formed = 6 x area of the triangular tiles

==> 6 x 35.055 cm^2 = 210.33 cm^2

7 0

3 years ago

Which one is the better option and why need at least four sentences explaining which option is better please someone help

SCORPION-xisa [38]

9514 1404 393

Answer:

Option B

Step-by-step explanation:

The cost of 6 turkeys at $1 per pound will be between $78 and $90. The cost of 6 turkeys at $20 each, B2G1, will be $80. We imagine that the average weight of turkeys in the 13-15 lb range will usually exceed 13 1/3 pounds, the weight at which the cost per pound is the same. That means, 6 turkeys at $1 per pound will likely cost more than $80, unless extreme effort is made to choose only the lightest turkeys.

Option B is likely to be cheaper; certainly so, if heavier turkeys are preferred.

7 0

3 years ago