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Mice21 [21]
2 years ago
12

9( -7b - 6) and Check for Understanding- Distributive Property

Mathematics
1 answer:
alexdok [17]2 years ago
6 0

9(-7b-6)

-63b-54

What I did was multiply 9 by -7b to gt -63b. Then, I multiplied 9 by -6 to get -54. :) hope this helps

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I was at a farm this farm raises cows and chickens I manage to count the number of heads and legs on the form I counted a total
inna [77]

Answer:

5 cows, 21 chicken

Step-by-step explanation:

5 cows; 20legs

21chickens; 42legs

26heads; 62legs

6 0
3 years ago
Circle O had a circumference of 36 2.14 cm. What is the length of the radius, r?
Karo-lina-s [1.5K]

Hello from MrBillDoesMath!

Answer:

r =  = 57.6  (approximately)

Discussion:

Given: circumference of circle O = 362.14

The circumference of a circle of radius r, is given by the formula C = 2 *PI *2.

So we need to find the value of r in

2*Pi*r = 362.14

Divide both sides by 2*PI to get

r = (362.14)/ (2 * Pi)   =   (362.14)/  6.283         (approximately)

                                 = 57.6  (approximately)



Thank you,

MrB

5 0
3 years ago
PLEASE ANSWER QUICK! I REALLY NEED HELP!
Katarina [22]

Answer:

a) Angle 1 = Value in degree = 95°

b)Angle 2 = Value in degree = 77°

c) Angle 3 = Value in degree = 85°

d) Angle 4 = Value in degree = 103°

Step-by-step explanation:

We use circle theorems to solve for this above question.

a) Angle 1 = Value in degree = 95°

Inscribed Angle is 1/2 of an Intercepted Arc

From the diagram, Angle 1 intersects at Arc B and Arc C

This means Angle 1 = (B + C)/ 2 =

Arc B = 100°

Arc C = 90°

Angle 1. = (100° + 90°)/ 2 = 190/ 2 = 95°

b)Angle 2 = Value in degree = 77°

From the diagram, Angle 2 intersects at Arc C and Arc D

Inscribed Angle is 1/2 of an Intercepted Arc

This means Angle 1 = (C+ D)/ 2

C = 90°

D = 64°

Angle 1. = (90° + 64°)/ 2 = 154/ 2 = 77°

c) Angle 3 = Value in degree = 85°

From the diagram, we can see that Angle 1 is opposite Angle 3, hence,

Opposite angles are supplementary which means their addition = 180°

Mathematically:.Angle 1 + Angle 3 = 180°

Angle 1 = 95°

95° + Angle 3 = 180°

Angle 3 = 180° - 95° = 85°

d) Angle 4 = Value in degree = 103°

From the diagram, we can see that Angle 2 is opposite Angle 4,

Hence,

Opposite angles are supplementary which means their addition = 180°

Mathematically:.Angle 2 + Angle 4 = 180°

Angle 2 = 77°

77° + Angle 3 = 180°

Angle 4 = 180° - 77° = 103°

4 0
3 years ago
The sum of three numbers is 67. The third number is 2 times the first. The first number is 5 more than the second. What are the
Vaselesa [24]

Answer:

1. 18 2. 13 3. 36

Step-by-step explanation:

3 0
2 years ago
H=-16t^2+46t+6 after how many seconds will the ball hit the ground?
ANEK [815]
Ball hit the ground is when the function equals zero
0=-16t^2+46t+6
we can't factor so use quadraticformula

for
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^2-4ac} }{2a}
x=\frac{-46+/- \sqrt{46^2-4(-16)(6)} }{2(-16)}
x=\frac{-46+/- \sqrt{2116+384} }{-32}
x=\frac{-46+/- \sqrt{2500} }{-32}
x=\frac{-46+/- 50 }{-32}
x=\frac{-46+ 50 }{-32} or \frac{-46- 50 }{-32}
x=\frac{4}{-32} or x=\frac{-96}{-32}
x=-1/6 or x=3

we cannot have negative time because time starts at 0
disregard -1/6 as a possible answer


answer is after 3 seconds

4 0
3 years ago
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