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guapka [62]
3 years ago
15

I need to find x for this problem, in a category of geometry, help please!

Mathematics
1 answer:
sattari [20]3 years ago
8 0

Answer:

17

Step-by-step explanation:

(7x)° + 61° = 180° (interior angle Postulate)

(7x)° = 180° - 61°

(7x)° =119°

7x = 119

x =  \frac{119}{7}  \\  \\  \huge \red{ \boxed{x = 17}}

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Dmitriy789 [7]

Answer:

option A 2/5 is the answer

5 0
2 years ago
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Mean starting salary was $93,000, with a standard deviation of $17,000. What is the 95% confidence interval for the average star
SpyIntel [72]

Answer:

1

Step-by-step explanation:


4 0
3 years ago
Help with this pleaseeee​
ELEN [110]

Answer:

(- 3, 37) and (- \frac{5}{2}, \frac{63}{2} )

Step-by-step explanation:

Given the 2 equations

2x² - y + 19 = 0 → (1)

y + 11x = 4 → (2) ← subtract 11x from both sides

y = 4 - 11x → (3)

Substitute y = 4 - 11x into (1)

2x² - (4 - 11x) + 19 = 0

2x² - 4 + 11x + 19 = 0

2x² + 11x + 15 = 0 ← in standard form

(2x + 5)(x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

2x + 5 = 0 ⇒ 2x = - 5 ⇒ x = - \frac{5}{2}

x + 3 = 0 ⇒ x = - 3

Substitute these values into (3) for corresponding values of y

x = - \frac{5}{2} : y = 4 + \frac{55}{2} = \frac{63}{2} ⇒ (- \frac{5}{2}, \frac{63}{2} )

x = - 3 : y = 4 + 33 = 37 ⇒ (- 3, 37 )

4 0
2 years ago
Explain what x^(2/3) means using radicals and integer exponents.
Evgesh-ka [11]
The cube root of x^2.

If you look at a regular square root of a number, that would be the same as x^(1/2) See the pattern?
5 0
3 years ago
Find the area of the composite figure to the nearest hundredth.
Lyrx [107]

Answer:

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Step-by-step explanation:

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2. (3,14 * 156,25)/2 = 245.31

3.  (30 * 12.5)/2 = 187.5

4. 187.5 + 245.31 + 312.5 = 745.31

4 0
3 years ago
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