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yaroslaw [1]
3 years ago
11

It says what to do in the problem :)

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Answer:

Step-by-step explanation:

1). (10x - 27)° = (2x + 29)°

10x - 27 = 2x + 29

8x = 56

x = 7

<em>m∠W</em> = (2(7) + 29)° <em>= 43°</em>

2). (14x + 4)° + 51° + 55° = 180°

14x + 110 = 180

<em>x = 14</em>

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For which value(s) of x will the rational expression below equal zero? Check all that apply.
Ivahew [28]

Answer: D.-6 and F.3

Step-by-step explanation:

The given rational number : \dfrac{(x-3)(x+6)}{(x+7)}

To find : The value of x  , where the  rational expression becomes equal zero.

Let's check all the options :

A. 7

At x= 7  , \dfrac{(7-3)(7+6)}{(7+7)}=\dfrac{26}{7}\neq0

B. -7

At x= 7 ,  \dfrac{(-7-3)(-7+6)}{(-7+7)}=\dfrac{10}{0}=\infty\neq0

C. 6

At x= 6 ,  \dfrac{(6-3)(6+6)}{(6+7)}=\dfrac{36}{13}\neq0

D. -6

At x= -6 , \dfrac{(-6-3)(-6+6)}{(-6+7)}=\dfrac{0}{1}=0

E. -3

At x= -3 ,   \dfrac{(-3-3)(-3+6)}{(-3+7)}=\dfrac{-9}{2}\neq0

F. 3

At x= 3 , \dfrac{(3-3)(3+6)}{(3+7)}=0

Thus, at x= -6 and 3 , the rational expression equals to zero .

So , the correct options are : D.-6 and F.3

8 0
3 years ago
Read 2 more answers
carter deposited $70 in a savings account earning 10% interest ,compounded anually. Write the equation
solniwko [45]
Equation for what?  Amount after so and so number of years?

If so, then A = $70(1+0.10)^t, where t is the # of years.
3 0
3 years ago
Read 2 more answers
6) Find the volume of the figure. Round your answer to the nearest tenth.
ch4aika [34]

Answer:

what is the base and height when you know that you can multiply

Step-by-step explanation:

5 0
4 years ago
Find the mean median mode and range of 2,2,6,15,38,39
svetlana [45]

Answer:

Mean is 17

Median is 10.5

Mode is 2

Range is 37

Step-by-step explanation:

<u>Mean is the average:  2 + 2 + 6 + 15 + 38 + 39 = 102 / 6 = 17 MEAN</u>

<u />

<u>Median is the middle:  2, 2, 6, 15, 38, 39</u>

Between 6 and 15 -> 15 - 6 = 9 / 2 = 4.5

6 + 4.5 = 10.5

Median is 10.5

<u>Mode is most common:  </u><u>2, 2</u><u>, 6, 15, 38, 39</u>

<u />

Mode is 2

<u>Range is the difference between the highest and the lowest number:  39 - 2</u>

37

Range is 37

7 0
4 years ago
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If ax +3=7-bx what is x expressed in terms of a and b
LenaWriter [7]
Ax + 3 = 7 - bx .....add bx to both sides
ax + bx + 3 = 7 ...subtract 3 from each side
ax + bx = 7 - 3
ax + bx = 4 ....factor out x
x(a + b) = 4 ...divide both sides by (a + b)
x = 4 / (a + b) <==
6 0
3 years ago
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