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Evgesh-ka [11]
3 years ago
14

Two ways to estimate 12÷478

Mathematics
1 answer:
rjkz [21]3 years ago
5 0
By dividing you get 0,025 which you can transform into 1/40
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In triangle ABC, M< A = 90° And M< C = 22° what is the measure of angle B
dedylja [7]

Answer:

The answer for ∠B = 68°

Step-by-step explanation:

Total angle in a triangle is 180° so you can just substract ∠A and ∠C from 180° :

∠A + ∠B + ∠C = 180°

90° + ∠B + 22° = 180°

∠B = 180° - 90° - 22°

= 68°

6 0
3 years ago
Find the value of x <br> (8x-1) (4x+7)
Helen [10]

Answer:

The value of x = 7

Step-by-step explanation:

Given the right triangle

  • Right angle = 90°
  • α = (4x+7)°
  • β =  (8x-1)°

  • We know that the sum of angles of a triangle is 180°.

so

Right angle + α + β =  180°

90° + 4x+7 + 8x-1 = 180

Group like terms

4x+8x+90+7-1=180

Add similar elements: :4x+8x=12x

12x+90+7-1=180

12x+96=180

12x=84

Divide both sides by 12

\frac{12x}{12}=\frac{84}{12}

x = 7

Therefore, the value of x = 7

7 0
3 years ago
X2 + y2 − 4x + 12y − 20 = 0
balu736 [363]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Una escalera, tiene un largo de 6m y está recargada en un muro. El ángulo entre la escalera y el muro es de 65°,
Rudiy27
Adyacente=hipotemusa*coseno del angulo
A=6*cos(65)
A=2.54m
Una pregunta, ¿estudias en educazion.net?
6 0
3 years ago
Andrew can run the forty yard dash in 1/2 the time that Brett can. If the sum of the two boys' times is 16.2 seconds, how many s
Zigmanuir [339]
10.8 seconds for brett i’m pretty sure
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3 years ago
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