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3 years ago

Jasmine correctly determined the area of this parallelogram by adding the areas of the triangles and rectangle.

Mathematics

2 answers:

Ad libitum [116K]3 years ago

7 0

Answer:

The answer is 20 72 112

Step-by-step explanation:

I took the test

atroni [7]3 years ago

7 0

Answer:

20 72 112

Step-by-step explanation:

1. 20

2.72

3.112

in the order you arranged yours

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Megan's family had cakes on two days. The first day, they had 2 3/4 cakes left. The second day, they had 1 1/4 cakes left. How m

vlabodo [156]

Answer: 4 cakes left in all.

Step-by-step explanation:

Given: Cakes left on first day= $2\frac{3}{4}=\frac{11}{4}$

Cakes left on second day = $1\frac{1}{4}=\frac{5}{4}$

The number of cakes left in all= $\frac{11}{4}+\frac{5}{4}$

⇒The number of cakes left in all= $\frac{11+5}{4}=\frac{16}{4}$

Therefore, The number of cakes left in all=4

8 0

3 years ago

Can I get some help to solve this question pls

ikadub [295]

Answer:

the complete graph is in the image

Step-by-step explanation:

to plot this, plug in values of x and find y.

4 0

3 years ago

Find the slope of the curve below at the given points. Sketch the curve along with its tangents at these points. R = sin 2 theta

mr Goodwill [35]

Answer:

<u> </u><u>-1 </u>

Step-by-step explanation:

Given that:

r = sin 2θ , θ = ± π/4 , ± 3π/4

Recall that:

x = r cosθ

y = r sinθ

The differential of y with respect to x

$\dfrac{dy}{dx} = \dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}}$

$\dfrac{dy}{dx} =\dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}} = \dfrac{ r cos \theta + sin \theta* \dfrac{dr}{d \theta} } {\dfrac{dr}{d \theta} *cos \theta- sin \theta \ r}$

at θ = π/4 , r = sin π/2

r = 1

$\dfrac{dy}{dx} = \dfrac{ r cos \theta + 2 cos (2 \theta)*sin \ \theta } {2 \ cos (2 \theta) *cos \theta- sin 2 \theta * sin \theta}$

where;

θ = π/4

$\dfrac{dy}{dx} = \dfrac{ 1 \times cos (\dfrac{\pi}{4}) + 2 cos (\dfrac{\pi}{2})*sin (\dfrac{\pi}{4}) } {2 \ cos (\dfrac{\pi}{2})*cos (\dfrac{\pi}{4})- sin (\dfrac{\pi}{2}) * sin (\dfrac{\pi}{4})}$