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3 years ago

8

Fill in the blank.. HELPPP PLEASEE!!!!!!

1 answer:

Nadya [2.5K]3 years ago

4 0

Answer:

real number

cannot, integers

Step-by-step explanation:

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If △ABC is an isosceles triangle where AB¯≅AC¯, m∠A=(2x−20)°, and m∠B=(3x+5)°, then m∠C=__________°.

KengaRu [80]

Refer to the diagram shown below.

Because ΔABC is isosceles and AB = AC, therefore
m∠C = m∠B = (3x + 5)°

The sum of angles in a triangle is 180°, therefore
2(3x + 5) + 2x - 20 = 180
6x + 10 + 2x - 20 = 180
8x - 10 = 180
8x = 190
x = 23.75°

Therefore
m∠C = 3x + 5 = 3(23.75) + 5 = 76.25°

Answer: 76.25°

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3 years ago

A carpenter bought a piece of wood that was 0.54 meters long. Then he sawed 0.39 meters off the end. How long is the piece of wo

ss7ja [257]

Answer:

Simply substract 0.39 from 0.54 = 0.15

Therefore the carpenter is left with 0.5 metre of wood.

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2 years ago

Write the difference of the expressions 17x−13y+8 and 20x+6y and simplify it.

Nostrana [21]

Answer:

50x

Step-by-step explanation:

The 17 is the loop product or 6. Do reverse division and add the 78 on step three. Good Luck!

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3 years ago

Select the expression that is equivalent to (2x^2 +5)-5/2

anyanavicka [17]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Let's solve :

${(2 {x}^{2} + 5) }^{ - \frac{5}{2} }$

$\dfrac{1}{{(2 {x}^{2} + 5) }^{ \frac{5}{2} } }$

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therefore, the correct choice is :

A

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2 years ago

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Leno4ka [110]

I think it is 14.5
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3 years ago