2 years ago

Need help with some practice

Mathematics

2 answers:

xeze [42]2 years ago

7 0

Answer:

51°

Step-by-step explanation:

(x+6)°+(3x-30)°=180°=

x+6+3x-30=80

x-24+3x=180

4x-24=180

4x-24+24=180+24

4x=204

x=51°

kykrilka [37]2 years ago

3 0

Answer:

the answer will be 51

Step-by-step explanation:

4x=204

You might be interested in

8.6E-10 in standard form

Afina-wow [57]

65 is the asnwer hope i helped

6 0

3 years ago

The area of a rectangle is 105 square units. Its width measures 7 units. Find the length of its diagonal. Round to the nearest t

mezya [45]

Answer:

16.6

Step-by-step explanation:

The rectangle has an area of 105. It's width is 7.

1: Find the length

$\frac{area}{width}$ =length

$\frac{105}{7}$ = 15

Length=15

2: Pythagorean theorem

$a^{2} +b^2=c^2$

$7^{2}$ + $15^2=c^2$

49+225= $c^2$

275= $c^2$

$\sqrt{275}$ = $\sqrt{c^2\\}$

16.55≈c

Rounded to nearest tenth

16.6

6 0

3 years ago

PLEASE HELPPPPPP<br><br> can I get a real-life example of an exothermic reaction?

77julia77 [94]

Answer:

<h3>When an ice cube tray, filled with water is placed in a freezer, it slowly loses heat and start to cool down to become ice cubes. Changing of water into an ice cube is an exothermic reaction. Snow formation in clouds is also an exothermic reaction. Clouds come into existence from condensation of water vapor.</h3>

4 0

2 years ago

This maximization linear programming problem is not in "standard" form. It has mixed constraints, some involving ≤ inequalities

stellarik [79]

Answer: See Annex

z (max) = 190

x = 10

y = 20

Step-by-step explanation:

z = 5*x + 7*y to maximize

Subject to:

x + y ≤ 30

2*x + y ≤50

2*x - y ≥ 0

x≥= y ≥0

5 0

3 years ago

What was two. thirds and fifth twelve

Harrizon [31]

The answer is 1 and 1/12 because you have to have a common denomonator.

4 0

3 years ago

Need help with some practice ​

Need help with some practice