All categories

2 years ago

PLEASE HELP ASAP!!!!!!!!!!!!!

Mathematics

1 answer:

Step2247 [10]2 years ago

5 0

Answer

12. x = 15, y = 21

13. x = 10, M = 37, N = 84, P =59

14. x = 19, R = 43, S = 20, T = 117

15. A = 21, B = 125, C = 34

16. J = 48, K = 57, L = 75

Explanation

12. 6x - 11 + x + 5 + 81 = 180

7x + 75 = 180

7x = 105

x = 15

4y - 18 + y + 14 + 6*15 - 11 = 180

5y + 75 = 180

5y = 105

y = 21

13. 4x - 3 + 9x - 6 + 6x - 1 = 180

19x - 10 = 180

19x = 190

x = 10

M = 4*10 - 3 = 37

N = 9*10 - 6 = 84

P = 6*10 - 1 = 59

14. R = 2x + 5

S = x + 1

T = 7x - 16

2x + 5 + x + 1 + 7x - 16 = 180

10x - 10 = 180

10x = 190

x = 19

R = 2*19 + 5 = 43

S = 19 + 1 = 20

T = 7*19 -16

15. A = C -13

B = 4C - 11

c - 13 + 4c - 11 + c = 180

6c -24 = 180

6c = 2-4

C = 34

A = 34 - 13 = 21

B = 4*34 - 11 = 125

16. K = J + 9

L = 2J -21

j + 9 + 2j - 21 + j = 180

4j -12 = 180

4j = 192

J = 48

K = 48 + 9 = 57

L = 2*48 -21 = 75

You might be interested in

(0.04)^3/2. .......<br>........<br><br>

zhannawk [14.2K]

Answer:

Step-by-step explanation:

hello :

(0.04)^3/2=√(0.04)^3 =√(2²/10^2)^3 = √((2/10)^2)^3

(0.04)^3/2=√((2/10)^3)^2=8/1000 = 0.008

4 0

2 years ago

The perimeter of UVW is 22 2/1. And VZ = 2 1/2. Find UW and VW.

Cerrena [4.2K]

UW and VW are the same so 9
22.5-4.5= 18 then divide the 18 by 2 so 9

4 0

3 years ago

Read 2 more answers

What is p equal to? Also if you could, can you tell me how you do it so I can do the rest by myself.

svp [43]

Answer:

p=-54

Step-by-step explanation:

$- \frac{p}{6} = 9 \\ \frac{ - p}{6} = 9 \\ \frac{ - p}{6} \times 6 = 9 \times 6 \\ - p = 54 \\ p = - 54$

6 0

2 years ago

Read 2 more answers

Solve the following expression when<br> t = 3 and s = 2<br> (12t) = (6s)<br> Enter

larisa86 [58]

From the solution of the expression, it can be seen that s = 6 when t = 3 while t = 1 when s = 2.

<h3>How do we solve a mathematical expression?</h3>

Given:

(12t) = (6s) ........................ (1)

When t = 3, we can solve for s from the expression in equation (1) by substituting t = 3 into the equation as follows:

12 * 3 = 6s

36 = 6s

s = 36 / 6

s = 6

When s = 2, we can solve for t from the expression in equation (1) by substituting s = 2 into the equation as follows:

12t = 6 * 2

12t = 12

t = 12 / 12

t = 1

Learn more about mathematical expression here: brainly.com/question/12401681.

#SPJ1

7 0

1 year ago

A ball is thrown from an initial height of 2 feet with an initial upward velocity of 31 ft/s. The ball's height h (in feet) afte

Vlad1618 [11]

A quadratic equation is in the form of ax²+bx+c. The time at which the height of the ball is 16 feets is 0.717 seconds and 1.221 seconds.

<h3>What is a quadratic equation?</h3>

A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.

The complete question is:

A ball is thrown from an initial height of 2 feet with an initial upward velocity of 31 ft/s. The ball's height h (in feet) after 7 seconds is given by the following, h=2+31t-16t². Find all values of t for which the ball's height is 16 feet. Round your answer(s) to the nearest hundredth.

The time at which the height of the ball is 16 feet can be found by,

h = 2 + 31t - 16t²

16 = 2 + 31t - 16t²

16 - 2 - 31t + 16t² = 0

16t² - 31t + 14 = 0

$t = \dfrac{-(-31)\pm \sqrt{(-31)^2-4(16)(14)}}{2(16)}\\\\$

t = 0.717 , 1.221

Hence, the time at which the height of the ball is 16 feets is 0.717 seconds and 1.221 seconds.

Learn more about Quadratic Equations:

brainly.com/question/2263981

#SPJ1

4 0

1 year ago