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3 years ago

CAN SOMEONE HELP ME PLEASE ASAP!?

Mathematics

1 answer:

valentinak56 [21]3 years ago

8 0

Answer:

last option

Step-by-step explanation:

b) 1/6 = 16.7 to 1dp

c) 45% = 45/100 = 9/20

d) 7/9 = 77.8% to 1dp

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PLSS HELP IF YOU TURLY KNOW THISS

BartSMP [9]

Answer:

$4(5x - 3) = 48$

distributive property:

$(4 \times 5x) - (3 \times 4) = 48 \\ 20x - 12 = 48 \\ 20x = 60 \\ x = [3]$

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What’s the value of X?

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Answer:

x = 10

Step-by-step explanation:

Adjacent angles add to 180 degrees, so set the angles equal to 180

(7x + 12) + (9x + 8) = 180

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Mrs. Ferree spent $43.50 on BBQ from The Smoke Station. The sales tax rate is 8%. What was her TOTAL cost?

AveGali [126]

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What is the length of LJ?

Fofino [41]

Option D:

The length of LJ = 3.5

Solution:

In the triangle LJK,

LK = 9, ∠K = 23°, ∠J = 89°

To find the length of LJ:

Law of sine:

A, B, C are the angles of the triangle and

a, b, c are the sides of the triangle.

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

Here for ΔLJK,

The side opposite to angle L is l.

The side opposite to angle J is j.

The side opposite to angle K is k.

$$\frac{l}{\sin L}=\frac{j}{\sin J}=\frac{k}{\sin K}$

Take only two sides.

$$\frac{9}{\sin 89^\circ}=\frac{LJ}{\sin 23^\circ}$

$$9\times \sin 23^\circ=LJ \times\sin 89^\circ$

$$9\times0.3907=LJ \times0.9998$

$$3.5163=LJ \times0.9998$

$$LJ=\frac{3.5163}{0.9998}$

$$LJ=3.51$

LJ = 3.5 (approximately)

Option D is the correct answer.

The length of LJ = 3.5.

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3 years ago