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2 years ago

I NEED HELP ASAP ILL GIVE BRAINLIEST!

Mathematics

1 answer:

EleoNora [17]2 years ago

4 0

Answer:

1/6

Step-by-step explanation:

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Compleete the equation of the line whose y-intercept 0-,1 and slope is 4

siniylev [52]

Answer:

y = 4x - 1

Step-by-step explanation:

y = mx + b, m is the slope, b is the y intercept or -1

7 0

3 years ago

In ΔABC, AD and BE are the angle bisectors of ∠A and ∠B and DE║ AB. Find the measures of the angles of ΔABC, if m∠ADE: m∠ADB = 2

drek231 [11]

Answer: ∠A=48°,∠B=48°,∠C=84°.

Step by-step explanation:

Given: AD and BE are the angle bisectors of ∠A and ∠B

i.e ∠6=∠7 ( ∵ Angles formed after AD bisected ∠A)

∠4=∠5 ( ∵ Angles formed after BE bisected ∠B)

Also, DE║AB

⇒ ∠2=∠7 (∵ Alternate interior angles)

∠3=∠6 (∵ Alternate interior angles)

And ∠ADE : ∠ADB =∠2:∠3= 2:9 =2x : 9x ..(1)

To Find: ∠A,∠B,∠C.

Solution: ∠2=∠7 (∵ Given) ...(2)

∠2=∠4 (∵ angles on the same segment) ...(3)

∠4=∠5 =∠B/2 (∵ Given) ...(4)

∴ In Δ ABD

∠3+∠4+∠5+∠7 = 180 (∵ Sum of interior angles of a triangle)

From equation 2,3,4,5, Put values

9x+2x+2x+2x =180°

⇒15x = 180°

⇒x=12°

Putting values in equation (4) ⇒ ∠ B =2*(2*12) = 48°

Also, ∠B=∠A=48°

Now,in Δ ABC

∠C+∠B+∠A= 180°

⇒48°+48°+∠C= 180°

⇒∠C=84°

6 0

4 years ago

two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they

Rashid [163]

Answer:

The first mechanic charges $105 per hour, and the second mechanic charges $90 per hour.

Step-by-step explanation:

If x is the rate of the first mechanic, and y is the rate of the second mechanic, then:

10x + 5y = 1500

x + y = 195

Solve the system of equations using elimination or substitution. Using substitution:

10x + 5 (195 − x) = 1500

10x + 975 − 5x = 1500

5x = 525

x = 105

y = 195 − x

y = 90

The first mechanic charges $105 per hour, and the second mechanic charges $90 per hour.

4 0

3 years ago

The cost, in dollars, to print a copy of a book can be represented by the expression 10x+5. In the expression, x represents the

seropon [69]

The one-time setup fee is $5, and the cost per copy is $10 thus the total cost is 10 times the number of copies plus 5.

5 0

3 years ago

Read 2 more answers

If one-half of a number is 8 less than two-thirds of the number, what is the number?how?

olga2289 [7]

Answer:

THEY CALL ME BIG BRAIN JOHNNY

Step-by-step explanation:

8 divide 2 equal 4 times 3 equals 12 times 2 equals 24

BOOM

6 0

3 years ago