6 * $1.25 is the expression.
$7.50 is the expression, solved.
The image of the question is attached below.
Given:
m∠DAC = 20° and m∠BCA = 30°
m∠ABC = 90° and m∠CDA = 90°
To find:
The value of x and y.
Solution:
In right triangle ABC,
m∠BAC = x° + 20°
Sum of the interior angles of a triangle = 180°
m∠BAC +m∠ABC + m∠BCA = 180°
x° + 20° + 90° + 30° = 180°
x° + 140° = 180°
Subtract 140° from both sides.
x° + 140° - 140° = 180° - 140°
x° = 40°
In right triangle ADC,
m∠ACD = y° + 30°
Sum of the interior angles of a triangle = 180°
m∠ACD +m∠CDA + m∠DAC = 180°
y° + 30° + 90° + 20° = 180°
y° + 140° = 180°
Subtract 140° from both sides.
y° + 140° - 140° = 180° - 140°
y° = 40°
The value of x is 40 and y is 40.
Answer:
I think the first 4 are right
5-8
sorry I cant read it it it is too small so I will explain
5.1 x 10^-2 would be 0.051 just move the decimal left x spaces where x is the exponent
9
4.4 x 10^3
10
7.5 x 10^4
11
6.99 x 10^7
12
5.75 x 10^9
13
8.4 x 10^-2
14
9.9 x 10^-3
15
5.15 x 10^-7
16
3.07 x 10^-5
17
you got it right
18
you got it right
19
Singapore
Luxembourg
Australia
Egypt
Brazil
20
3,670,000,000
21
6.2 x 10^-6
22
125,000,000,000
1.25 x 10^11
Step-by-step explanation:
i hope I helped
Answer:
A
Step-by-step explanation:
x=5 is the opposite of -5 so it can be eliminated
y=x-5 is not giving you the x intercept and same with y=-x+5
Answer: First, turn the mixed fraction 16 1/4 into a improper fraction. It would become 65/4
x+65/4=64
Next, I would multiply the entire equation by 4 to get rid of the fraction
It would become 4x+65=256
Now solve for X
4x=191
x=191/4
x=47.75
Step-by-step explanation:
