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k0ka [10]
3 years ago
15

Plz help ill give u brainlist

Mathematics
2 answers:
Alex3 years ago
7 0
The diameter is 2r -- two times the radius.
Radius = 11
Diameter = 5x + 7

Plug the radius and diameter into the equation D = 2r.
5x + 7 = 2(11) 

5x + 7 = 22
5x = 15
x = 3

The answer is C) 5x + 7 = 22.
The value of x is 3.
belka [17]3 years ago
6 0
C. 5x+7=22 since diameter is equal to double the radius. radius=11 so diameter equals 22. then just make 5x+7 = to 22
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Which sums are equal to 1hold 6/8?
katovenus [111]
A. = 7/8
b. = 7/4 = 1 3/4
c. = 7/4 = 1 3/4
d. = 7/4 = 1 3/4

= b,c,d
6 0
3 years ago
The value of x =<br> 60°<br> 5<br> x<br> 30°
nikklg [1K]

Answer:

10

Step-by-step explanation:

with reference angle 30°

perpendicular (p) = 5

hypotenuse (h) = x

Now

sin 30° = p / h

1 / 2 = 5 / x

x = 10

Hope it will help :)

6 0
3 years ago
4x+5=45 (Show work to get brainliest)<br><br> A) 5<br> B) 10<br> C) 15<br> D) 20
jasenka [17]

Answer:

B) 10

Step-by-step explanation:

4x+5=45

     -5   -5

4x=40

/4    /4

x=10

3 0
3 years ago
Read 2 more answers
Find the distance between the points given.<br> (3, 4) and (6,8)
Damm [24]

Answer:

Slope of 3/4     (3,4) between points

Step-by-step explanation:

7 0
3 years ago
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Need help understanding the formula
ololo11 [35]

For this case we have the following equation:

H (t) = -16t ^ 2 + vt + s

Where,

t: time

v: initial speed

s: initial height

Substituting values we have:

H (t) = -16t ^ 2 + 15t + 4

By the time the ball hits the ground we have:

-16t ^ 2 + 15t + 4 = 0

From here, we clear the value of time:

Using the quadratic equation we have:

t=\frac{-15+/-\sqrt{15^2-4(-16)(4)}}{2(-16)}

Doing the calculations we have:

t1=-0.217\\t2=1.154

Discarding the negative root, we have that the time is:

t=1.154

Answer:

it takes the ball to hit the floor about:

1.15 seconds



6 0
3 years ago
Read 2 more answers
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