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dimulka [17.4K]
3 years ago
6

Three support beams for a bridge form a pair of complementary angles. Find the measure of each angle.

Mathematics
1 answer:
cluponka [151]3 years ago
7 0
(2x - 20) = 55
(4x - 10) = 25
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If I get 18 dollars every 2 weeks how long before I get 2,000?
BigorU [14]

Answer:

ab 112 weeks or ab 778 days

Step-by-step explanation:

2000 / 18 = 111.111111111

If I round up 111.111111111 it would be 112

8 0
3 years ago
A) Find the slope, x-intercept, y-intercept of the line (L):
Black_prince [1.1K]

Answer: 2, 1.5 , -0.75

(b) 4x-3y-10=0

Step-by-step explanation:

Given

line is 3x+4y-6=0

Converting it into intercept form

\Rightarrow 3x+4y=6\\\\\Rightarrow \dfrac{3x}{6}+\dfrac{4y}{6}=\dfrac{6}{6}\\\\\Rightarrow \dfrac{x}{2}+\dfrac{y}{1.5}=1

So, the x-intercept is 2 and y-intercept is 1.5

The slope is given by

-\dfrac{\frac{1}{2}}{\frac{1}{1.5}}=-0.75

(b) the line perpendicular to the above line and passing through (1,-2)

The slope of the required line

m=-\dfrac{1}{-0.75}\\\\m=\dfrac{4}{3}

Equation of the line is given by

\Rightarrow \dfrac{y-(-2)}{x-1}=\dfrac{4}{3}\\\\\Rightarrow 3y+6=4x-4\\\Rightarrow 4x-3y-10=0

3 0
2 years ago
There are eight boys and seven girls in a class. The teacher randomly selects three different students to answer questions. What
stepladder [879]

the probability is 7/15

Step-by-step explanation:

because there are 7 girls and 8 boys

6 0
2 years ago
What is the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the
lakkis [162]
The lateral area of a cylinder is given by:
Area=πrl+2πr^2
radius,r=12 mm
length,l=5*12=60mm
therefore the lateral area will be:
Area=π*12*60
Area=2,261.95 mm^2
The area of the bases will be:
A=2*π*12^2=904.78 mm^s
The lateral area will be:
2,261.95+904.78
=3,166.73
=3167 mm^2
5 0
3 years ago
jacob used 1/7 of a liter to fill 1/9 of the fush aquarium. how many liters if water are needed to fill the aquariam? please lea
Sveta_85 [38]

Answer:

1.2 liters

Step-by-step explanation:

7/7 of a liter is one liter. and you still are only at 7. you need to get to 9 you and 2 1/7 liters and that becomes 9/7 liters which = 1.2

7 0
3 years ago
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