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Leno4ka [110]
4 years ago
12

Triangle abc is a right triangle. One of the acute angles is (3x+20)and the other is (3x+10) find the value of x

Mathematics
1 answer:
sasho [114]4 years ago
5 0

Answer:

x=10

Step-by-step explanation:

90+3x+10+3x+20=180

-90      -10      -20   -120

combine like terms

6x=60

x=10

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PLeAsE HeLp Someone​
liq [111]

Answer:

yes

Step-by-step explanation:

the answer its 5

5 0
3 years ago
Which equation represents a line that intersects the line 2y − 4x = 3? A.-2y + 4x = 1 B. 3y − 6x = 6.5 C. y − 2x = 3 D. -2y − 4x
irga5000 [103]
Convert all the equations to slope-intercept form:
2y-4x=3 \ \ \ |+4x \\
2y=4x+3 \ \ \ |\div 2 \\
y=2x+\frac{3}{2}

A. \\
-2y+4x=1 \ \ \ |-4x \\
-2y=-4x+1 \ \ \ |\div (-2) \\
y=2x-\frac{1}{2} \\ \\
B. \\
3y-6x=6.5 \ \ \ |+6x \\
3y=6x+6.5 \ \ \ |\div 3 \\
y=2x+\frac{13}{6}

C. \\
y-2x=3 \ \ \ |+2x \\
y=2x+3 \\ \\
D. \\ 
-2y-4x=3 \ \ \ |+4x \\
-2y=4x+3 \ \ \ |\div (-2) \\
y=-2x-\frac{3}{2}

Lines A, B and C have the same slope as the line 2y-4x=3, so they are parallel and don't intersect it.
Line D has another slope, so it intersects the line 2y-4x=3.
The answer is D.
3 0
4 years ago
Evaluate: 5-^2 =<br> pls help
Elanso [62]

Answer:

1/25

Step-by-step explanation:

5^-2

We know that a^ -b = 1/ a^b

5^-2 = 1/ 5^2

       = 1/25

3 0
4 years ago
What is 3 3/10 + 2 4/5 + 3 2/5 + 2 1/10
marysya [2.9K]
(33/10)+(14/5)+(17/5)+(21/10) (after taking L.C.M. of denominators) =(33+28+34+21)/10 =116/10(simplfy it) =58/5
4 0
3 years ago
3/2 times 6/2 times 2
ladessa [460]

Answer:

9

Step-by-step explanation:

3/2x6/2=18/2 Simply that and it turns to 9.

7 0
2 years ago
Read 2 more answers
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