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Gelneren [198K]
3 years ago
10

Find the value of x (really need help with this)

Mathematics
1 answer:
qwelly [4]3 years ago
4 0

Answer:

x=-7

Step-by-step explanation:

The sum of the angles of a triangle are 180 degrees

40 + x+57 + 90 =180

Combine like terms

187 +x = 180

Subtract 187 from each side

187-187 +x = 180-187

x = -7

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What is the domain of the function y= 4x+6 - 7?
Fantom [35]
<h2>Answer:</h2>

<em>Domain:</em>  (−∞,∞)  ,  {x|x∈R}

<h2> explanation:</h2>

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

<u><em>Interval Notation:</em></u>

(−∞,∞)

<u><em>Set-Builder Notation:</em></u>

{x|x∈R}

i hope this helped. please give brainliest if it did!

4 0
2 years ago
Can someone help me with this?
Rainbow [258]

Answer:

Step-by-step explanation:

a)3*4*2*b = 24b

Multiply the numerals and then the variables.When multiply variables, add the exponents and only same variables can be multiplied

b) c⁵ *c = c⁵⁺¹ = c⁶

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6 0
2 years ago
Urgent!!
Ber [7]

Answer:

Sara earned a commission of <em>$2,300.</em>

Step-by-step explanation:

To find the answer we will first<em> divide 5 by 100</em> and we get <em>0.05</em>.  Now <em>multiply $46,000 by 0.05 </em>and we get <em>$2,300</em>.  Therefore, <em>$2,300 is our answer.</em>

6 0
3 years ago
A circle has a radius of five ft.
Flura [38]
A. for the circumference it is C=pi(d)=pi(2r)=pi(10)=  31.4 ft
b. for the area it is A=pi(r)^2=pi(5)^2=pi(25)= 78.5 ft squared
c. since the are is 78.5 ft squared multiply by $4.50= $353.25 to floor the circle.
6 0
3 years ago
For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
Trava [24]
11 = 1.375 * 8
22 = 1.375 * 16
33 = 1.375 * 24
Therefore y varies directly with x.
Answer: C ) yes; y = 1.375 x 
7 0
3 years ago
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