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3 years ago

Help please, I will give brain list

Mathematics

1 answer:

lara [203]3 years ago

5 0

A=WL
115=5L
Divide by 5
23=L

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Please answer the question correctly while showing detailed working.

masha68 [24]

$\\ \sf\longmapsto 3a^4-5a-3+2a^3-a^2+2a-3+x=8a^4-3a^3+4a-8$

x is third side

$\\ \sf\longmapsto 3a^4+2a^3-a^2+2a-5a-3-3+x=8a^4-3a^3+4a-8$

$\\ \sf\longmapsto 3a^4+2a^3-3a-6+x=8a^4-3a^3+4a-8$

$\\ \sf\longmapsto x=8a^4-3a^4-3a^3+2a^3+4a+3a-8+6$

$\\ \sf\longmapsto x=5a^4-a^3+7a-2$

3 0

3 years ago

PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!!!

inn [45]

Answer:

z = 82°

x = 7°

Step-by-step explanation:

180° - 82° = 98° + 7°

= 105° ÷ 15

= 7°

ywc :) Mark me brainliest

3 0

2 years ago

Solve for x PLS HELP NOW

Zepler [3.9K]

Answer:

$x=70$

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS
Equality Properties

Step-by-step explanation:

Step 1: Define equation

$\frac{0.35}{\frac{2}{3}x } =\frac{0.45}{x-10}$

Step 2: Solve for x

Cross-multiply: $0.35(x-10)=\frac{2}{3} x \cdot 0.45$
Distribute 0.35: $0.35x - 3.5=\frac{2}{3} x \cdot 0.45$
Multiply: $0.35x - 3.5=0.3x$
Isolate x term: $-3.5=-0.05x$
Isolate x: $70=x$
Rewrite: $x=70$

Step 3: Check

Plug in x to verify it's a solution.

Substitute: $\frac{0.35}{\frac{2}{3}(70) } =\frac{0.45}{70-10}$
Multiply: $\frac{0.35}{\frac{140}{3} } =\frac{0.45}{70-10}$
Subtract: $\frac{0.35}{\frac{140}{3} } =\frac{0.45}{60}$
Evaluate: $0.0075=0.0075$

7 0

2 years ago

Read 2 more answers

a. If you select a random sample of 50 sessions, what is the probability that the sample mean is between 10.8 and 11.2 minutes

natka813 [3]

P stands for probability P(10.8

3 0

2 years ago

To approach the runway, a pilot of a small plane must begin at 6 degrees,descent starting from a height of 1905 feet above the g

koban [17]

Answer:

C. 3.5 mi

Step-by-step explanation:

Reference angle = angle of elevation

Angle of elevation = angle of depression = 6° (alternate angle theorem)

Hypotenuse = x

Opposite = 1905 ft

Apply trigonometric function SOH:

Sin 6° = Opp/Hyp

Sin 6° = 1905/x

x * Sin 6° = 1905

x = 1905/Sin 6°

x = 18,224.7 ft

Convert form feet to miles

1 mi = 5,280 ft

Therefore,

18,224.7 = 18,224.7/5,280

= 3.45164773 mi

≈ 3.5 mi (nearest mile)

6 0

2 years ago