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juin [17]
1 year ago
10

21° Find the measure of the missing angle:

Mathematics
1 answer:
guapka [62]1 year ago
8 0
The answer is 69. the angle is a right angle which means it is 90 degrees. subtract 90-21 to get 69
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X^2/3 •5x =5x^5/3<br><br> Can someone explain how the exponent is 5/3?
alekssr [168]
Written an alternate way it is x^2/3 • 5x^3/3 (because 5x is to the power of one and in order to add fractions, you have to have the same denominator). So when you multiply the like terms, you add the exponents (2/3 and 3/3).
8 0
2 years ago
The temperature is 58° F. It gets warmer by h degrees and reaches to 65° F. Find h.
Aleks [24]

Answer:

h = 7 degrees

Step-by-step explanation:

To find <em>h</em>, we know that it is positive because it increases in value, not decreases:

h = 65 - 58

h = 7

7 0
2 years ago
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Let f(x) = x^3 + 2x^2 + 3x + 1 and g(x)= 4x-5 Find f(x) x g(x)
Brums [2.3K]

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

Given :

f(x) =  {x}^{3}  + 2 {x}^{2}  + 3x + 1

g(x) = 4x - 5

let's solve for f(x) × g(x) :

( {x}^{3}  + 2x {}^{2}  + 3x + 1)(4x - 5)

4x {}^{4}  - 5 {x}^{3}  + 8 {x}^{3  }  - 10 {x}^{2}  + 12 {x}^{2}  - 15x + 4x - 5

4 {x}^{4}  + 3 {x}^{3}  + 2 {x}^{2}   - 11x - 5

therefore, correct choice is : D

8 0
2 years ago
What is the y-intercept of the graph of x - 8 = y-(-5)?
damaskus [11]

Answer:

A. -13

Step-by-step explanation:

y - (-5) is the same as y + 5

x - 8 = y + 5; you then subtract 5 from both sides

x - 13 = y

4 0
2 years ago
A pair of in-line skates is on sale for $90 if this price represents a 9% discount on the original price what is the original pe
UkoKoshka [18]
1 + 0.09 = 1.09

90 * 1.09 = 98.1

The original price of the in-line skates was $98.1
5 0
3 years ago
Read 2 more answers
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