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Paladinen [302]
3 years ago
10

Help please asap!! will mark brainliest!!!!! its timed

Mathematics
2 answers:
sammy [17]3 years ago
6 0

Answer:

m∠ABD = 140° and m∠DBC = 40°

Step-by-step explanation:

∵ ABC is a straight angle

∴ m∠ABD + m∠DBC = 180°

∴ 15x - 4 + 5x - 8 = 180

∴ 20x - 12 = 180

∴ 20x = 180 + 12

∴ 20x = 192

∴ x = 192/20 = 9.6

∴ m∠ABD = 15(9.6) - 4 = 144 - 4 = 140°

∴ m∠DBC = 180 - 140 = 40° ( 5(9.6) - 8 = 48 - 8 = 40°)

Kay [80]3 years ago
4 0

Answer:

<ABD = 140°

<DBC = 40°

Step-by-step explanation:

<ABD + <DBC = 180°

15x - 4 + 5x - 8 = 180

20x - 12 = 180

20x = 192

x = 9.6

<ABD = 15(9.6) - 4 = 140°

<DBC = 5(9.6) - 8 = 40°

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Common Denominator of 7-4-9-3-8
Verizon [17]
Whats 7-4-9-3-8 mean
8 0
3 years ago
Given the data below:
Leno4ka [110]

Answer:

5.16

Step-by-step explanation:

Since after x=3, value of y starts decreasing for increasing values of x, let's choose. Also we need to find f(x) for x=3.4

x=3,4,5 and f(x)=7,3,1 to find lagrange polynomial

P(x)= ((x-x2)(x-x3)y1)/((x1-x2)(x1-x3) + ((x-x1)(x-x3)y2)/((x2-x1)(x2-x3) + ((x-x1)(x-x2)y3)/((x3-x1)(x3-x2)

P(x)= ((x-4)(x-5)7)/((3-4)(3-5)) + ((x-3)(x-5)3)/((4-3)(4-5)) + ((x-3)(x-4)1)/((5-3)(5-4))

P(x)= x² -11x+31

P(3.4)= 5.16

7 0
3 years ago
Y = –3x 6 y = 9 what is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1)
Romashka [77]

we have

<u>The system of equations</u>

y=-3x+6 -------> equation 1

y=9 -------> equation 2

Substitute equation 2 in equation 1

9=-3x+6

subtract 6 both sides

9-6=-3x+6-6

3=-3x

Divide by -3 both sides

x=-1

the solution is the point (-1,9)

therefore

the answer is

the solution to the system of equations is the point (-1,9)


4 0
3 years ago
Read 2 more answers
Uh can someone please help? please get it right and try to explain how
Anestetic [448]

Answer:

From least likely to most likely:

Colorado Bronze wins

I Am Pat wins

Good Legs Lance wins

Step-by-step explanation:

Converting all probabilities to the same type may be easier to visualize and see the chances. Let's convert each chance to percentage:

P(I Am Pat wins) = 3/10 = <u>30%</u>

P(Good Legs Lance wins) = 0.6 = <u>60%</u>

P(Colorado Bronze wins) = 10%= <u>10%</u>

Thus, the desired order is:

Colorado Bronze wins

I Am Pat wins

Good Legs Lance wins

4 0
3 years ago
Read 2 more answers
2(x+3)=x-4<br> please help me &lt;3
vovikov84 [41]
2(x + 3) = x - 4

distribute

2x + 6 = x - 4

either subtract 6 from both sides or add 4. i will be subtracting 6.

2x = x - 10

subtract x from both sides

x = -10
4 0
3 years ago
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