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Sindrei [870]
2 years ago
15

Mhanifa please help! Explain how you can use the perpendicular bisector of a segment to draw an isosceles triangle.

Mathematics
1 answer:
Anna007 [38]2 years ago
7 0

Answer:

If you construct the perpendicular bisector of a line segment, every point on the perpendicular bisector will be the same distance from both point A and point B.

To construct an isosceles triangle, you can start from any point on the perpendicular bisector and draw line segments to point A and to point B

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Sam read 60 pages, which is 3/4 of the book. How many pages are there in the book?
Elenna [48]

Divide the pages read by the portion read:

60/ 3/4 = 60 x 4/3 = 240/3 = 80

The book has 80 pages.

3 0
3 years ago
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Patty paid $260.40 for a bike rack for her car, after tax, and the tax rate is 8.5%. What was the original price of the bike rac
Scorpion4ik [409]

Answer:

Step-by-step explanation:

2x - 9y = 23

5x - 3y = -12x - 9y = 23we]periyhw[euiorghweuirtg7wuio[ryg

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -1

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3 years ago
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What is the square root of 55
nikitadnepr [17]

\sqrt{55 }  = 7.41.....
It is non recurring number

Hope it helps you
3 0
3 years ago
4. Tres albañiles trabajaron en una construcción. Francisco trabajó el doble de horas que Eduardo y Eduardo trabajó el cuádruple
MrRa [10]

Answer:

La cantidad de horas que trabajó Hugo son 8, mientras que Eduardo trabajó 32 horas y Francisco 64 horas.

Step-by-step explanation:

En primer lugar, para determinar la ecuación que debes resolver, es conveniente establecer la variable a la que debes encontrar una solución en la ecuación. Entonces, llamas x a la cantidad de horas que trabajó Hugo.

Luego, sabes que Eduardo trabajó el cuádruple de horas de las que trabajó Hugo, esto es, cuatro veces más de las horas trabajadas por Hugo. Esto se expresa matemáticamente como 4*x.

Finalmente, Francisco trabajó el doble de horas que Eduardo, que se calcula multiplicando a las horas trabajadas por Eduardo por 2: 2*4*x= 8*x

Entre los tres hermanos trabajaron 104 horas. Esto indica que la suma de las horas trabajadas por Francisco, Eduardo y Hugo debe ser 104 horas. Esto se expresa matemáticamente como:

x + 4*x+ 8*x= 104 (Planteamiento algebraico)

Resolviendo (Procedimiento):

13*x=104

x=\frac{104}{13}

x=8

Esto significa que <u><em>la cantidad de horas que trabajó Hugo son 8</em></u>.

Eduardo trabajó 4*x, esto es 4*8, que da como resultado 32 horas. Entonces <u><em>Eduardo trabajó 32 horas.</em></u>

Por último, Francisco trabajó 8*x. Siendo x=8, entonces 8*8=64. Entonces <u><em>Francisco trabajó 64 horas.</em></u>

7 0
2 years ago
g A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 13
Luden [163]

Answer:

There is enough evidence to reject the manufacturer’s claim and  the standardized test statistic z is -3.43

Step-by-step explanation:

A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135°F.

So, Null hypothesis:H_0:\mu \geq 135

Alternate hypothesis :H_a:\mu

To test this claim, you randomly select a sample of 32 systems and find the mean activation temperature to be 133°F.

x=133

n = 32

Population Standard deviation =\sigma = 3.3^{\circ}F

Formula :z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

z=\frac{133-135}{\frac{3.3}{\sqrt{32}}}\\\\z=-3.428

z=-3.43

Refer the z table for p value

p value = 0.0003

\alpha = 0.10

p value < α

So, we failed to accept null hypothesis

Hence there is enough evidence to reject the manufacturer’s claim and  the standardized test statistic z is -3.43

6 0
2 years ago
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