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IgorC [24]
3 years ago
7

Given cos A 0.42, find angle A in degrees. Round your answer to the nearest hundredth.

Mathematics
2 answers:
kow [346]3 years ago
5 0

Answer:


Step-by-step explanation:

22.78.................................

k0ka [10]3 years ago
4 0

Answer:

A = 65.17

Step-by-step explanation:

Cos A = .42

Take the inverse cos of each side

arccos cosA = arccos .42

A = 65.16541251

To the nearest hundredth

A = 65.17


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Svetlanka [38]

Answer:

i think the answer is in the question it is -4,1

Step-by-step explanation:


7 0
3 years ago
Y=2x-7<br> y=-3x+18 <br> solve by substitution
Liono4ka [1.6K]

Answer:

-x+11

Step-by-step explanation:

am not sure if this is correct but

2x-3x=-x

-7+18=11

-x+11

8 0
2 years ago
Nikki is 5 years older than Jamie. The product of their ages is 126. Which equation could be used to find Nikki’s age, n?
slavikrds [6]

Answer:

126 = n × (n - 5)

Step-by-step explanation:

If Nikki's age is <em>n </em>and she is 5 years older than Jamie, then Jamie is 5 years younger than Nikki's <em>n </em>number of years.

7 0
3 years ago
Read 2 more answers
Write the equation of a line in slope intercept form given;<br> (6,-3), (0, 5)
olganol [36]

Answer:

y=(-4/3)x+5

Step-by-step explanation:

so you want to start by using y=mx+b

step one: find the slope (remember m is the slope in this)

m= \frac{y2-y1}{x2-x1}

m= \frac{5+3}{0-6}

m= \frac{8}{-6}

m= - \frac{4}{3\\}

step two: insert the value we found for m into the equation and take one of the given points and insert the x and y into the equation (im using (0,5)) and solve for b.

y=mx+b

5= -4/3(0)+b

5=b

step three: rewrite y=mx+b with the values we found for m and for b

y=(-4/3)x+5

3 0
2 years ago
-5(x - 4) + 6 = 5(3x+4) -4
jenyasd209 [6]

Answer:

x=1/2

Step-by-step explanation:

-5(x - 4) + 6 = 5(3x+4) -4

WE APPLY DISTRIBUTIVE PROPERTY:

-5*x +5*4 + 6 = 5*3x +5*4 -4

-5x + 26 = 15x +20 -4

26 +4 -20=15x+5x

10=20x

x= 10/20

we have:

x=1/2

3 0
3 years ago
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