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2 years ago

M and N are similar shapes. Work out the missing lengths, x and y. HELP

Mathematics

2 answers:

Anna71 [15]2 years ago

7 0

Step-by-step explanation:

x=3.8 y=6 is your answer right answer

gizmo_the_mogwai [7]2 years ago

5 0

X=3.8 y=6 I hope this helps!

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Is xy = yx? Explain how you know

blagie [28]

Answer:

Yes

Step-by-step explanation:

xy=yx because either way, you would end with the same product. For example, if x was 3 and y was 2, you would have (3)(2)=(2)(3), giving you 6=6 which is, in fact, a true statement.

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2 years ago

Calculate the side lengths a and b to two decimal places.

Zinaida [17]

Answer:

$a=10.92 units$

$b=14.51 units$

Step-by-step explanation:

We are given that c=6 units

$\angle A=43^{\circ}$

$\angle B=115^{\circ}$

We have to find the side length a and b.

We know that sum of angles of a triangle =180 degrees

$\angle A+\angle B+\angle C=180$

Substitute the values then we get

$43+115+\angle C=180$

$158+\angle C=180$

$\angle C=180-158=22^{\circ}$

sine law: $\frac{a}{sin A}=\frac{b}{sin B}=\frac{c}{sin C}$

$\frac{a}{sin 43^{\circ}}=\frac{6}{sin 22^{\circ}}$

$a=\frac{6}{sin 22^{\circ}}\times sin 43^{\circ}$

$a=10.92 units$

$\frac{b}{sin 115^{\circ}}=\frac{6}{sin 22^{\circ}}$

$b=\frac{6}{sin 22^{\circ}}\times sin 115^{\circ}=14.51$

$b=14.51 units$

6 0

2 years ago

What is the volume of this sphere? Use a 3.14 and round your answer to the nearest hundredth. 7 m

kondor19780726 [428]

Answer:

V≈1436.76

Step-by-step explanation:

V=4/3 $\pi r^{3}$

V= 4/3 3.14* $7^{3}$

V=1436.75504

Rounded answer is 1436.76

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3 years ago

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(2) (x-7) (=3) (x+8)

Tasya [4]

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2 years ago

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lozanna [386]

Answer:

552

Step-by-step explanation:

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3 years ago