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Roman55 [17]
3 years ago
14

Which equation can be used to find the measure of angle BAC?

Mathematics
2 answers:
asambeis [7]3 years ago
8 0

Answer:

Step-by-step explanation:

let angle B . be y   then,

using angle sum property,

x+y+90=180 (angle c is 90 because its given)

hence you have the equation

Monica [59]3 years ago
6 0

Answer:

Cos() = AC / AB

So in this case: Cos() = 5 / 13

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PLSSS PLSSS HELP! After an injury, Greg's doctor advises him to slowly build up to his regular workout schedule, adding a certai
Nonamiya [84]

Answer:

Week 1: 10 Minutes

Week 10: 77.5 Minutes or 1 hour and 17.5 Minutes

Week n: 10 + 7.5n

Step-by-step explanation:

Every week, Greg adds another 7.5 minutes to his workout time. Week 1 starts off with 10 minutes and continuously adds 7.5 minutes until he gets to week three, which 10 + 7.5(2) = 25 minutes.

8 0
3 years ago
Two squares have areas of 4 cm?
timofeeve [1]

Answer:

1/2

Step-by-step explanation:

First square area = 4cm^2, thus the side length is 2cm

Second square area = 16cm^2, thus the side length is 4cm

This gives a ratio of 2/4, simplifying yields 1/2

3 0
2 years ago
What is the product?<br> (x2+3y+7) [yy+1)
DIA [1.3K]
2 x y2 + 2 x 3 y3 + 3y + 7 y2 + 7
6 0
3 years ago
What is 20/10 as a whole number
iren2701 [21]
20/10 is same as 20:10 so the whole number is 2
4 0
2 years ago
Read 2 more answers
What are the roots of the quadratic equation below 3x2+15x-5=0
fomenos

Answer:

<h2>A</h2><h2 />

Step-by-step explanation:

3x^2+15x-5=0\\a = 3\\b = 15\\c = -5\\ x = -b\±\frac{\sqrt{b^{2} -4ac} }{2a} \\x = -(15)\±\frac{\sqrt{15^{2} -4(3)(-5)} }{2(3)} \\x = -15 \±\frac{\sqrt{225+60} }{6} \\x = -15\±\frac{\sqrt{285} }{6} = A

8 0
3 years ago
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