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RUDIKE [14]
3 years ago
10

Need help with this question, much appreciated.

Mathematics
1 answer:
taurus [48]3 years ago
8 0

Answer:

75 degrees

Step-by-step explanation:

1. Find angle J.

The outside angle and angle J are supplementary, which means they add up to 180 degrees.

180 - 130 = 50.

So angle J is 50 degrees.

2. The angles in a triangle add up to 180. Add up angles J and K and subtract that from 180

50 +65 = 105

180- 105 = 75

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Jaelyn works 6 hours per day on Thursday, Friday and Saturdays each week. She
VladimirAG [237]

Answer:

1,363.5

Step-by-step explanation:

$15.15 ×6 =90.9(for Thu,Fri,sat)

15.15×24=363.6(for other days)

90.9×3=272.7(total for Thursday, Friday and Saturdays)

363.6× 3( include other days like Monday Tuesday and Wednesday)

1,090.8

therefore total for 6hours days and full days

1,090.8+272.7=1,363.5

7 0
2 years ago
Find the x-values for which f(x) = g(x)<br> if you know that f(x) = x2 and g(x) = 9.
Juli2301 [7.4K]

Answer:

For the values of x  = 3 and x = -3 the given functions f(x) = g(x)

Step-by-step explanation:

Here, the given functions are

f(x)  = x^{2} \\g(x) = 9

Now, given f(x)  = g(x)

⇒ x^{2}   = 9

or, x = \sqrt{9}   \implies x  = 3, -3

Hence, for the values of x  = 3 and x = -3 the given functions f(x) = g(x)

5 0
3 years ago
Luisa's restaurant Bill comes to $75.50 and she leaves a 15% tip what is Luisa's total restaurant bill
Over [174]
$86.62 would be the total after 15% tax.
3 0
3 years ago
The equation 3sinx+cos^2x=2 is solved below<br> Please help! Thanks!
Kay [80]
We have that
3sin x+cos²<span>x=2
</span>3sin x+(1-sin²x)<span>=2
</span>-sin²x +3sin x=1
sin²x -3 sin x+1=0---------> up to here the procedure is correct
let
A=sin x
then
A²-3A+1=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

(A²-3A)=-1

Complete the square. Remember to balance the equation by adding the same constants to each side.

(A²-3A+2.25)=-1+2.25

Rewrite as perfect squares

(A-1.5)²=1.25

(+/-)(A-1.5)=1.12

first solution

(A-1.5)=1.12--------> A=1.12+1.5-----> A=2.62-----> sin x=2.62

second solution

-(A-1.5)=1.12----> -A+1.5=1.12----> A=1.5-1.12----> A=0.38---> sin x=0.38

the answer is

the equation was factored incorrectly

8 0
3 years ago
Read 2 more answers
Jamil can do 18 tricks on his bike
adell [148]
2/9 = 0.2222

4/18 = 0.2222

Answer:
4 tricks.
7 0
3 years ago
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