1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
devlian [24]
3 years ago
13

Find the value of x. to 4 42° 60° -

Mathematics
1 answer:
nata0808 [166]3 years ago
3 0

Answer:

Step-by-step explanation:

The missing angle of the triangle is 180°-42°-60° = 78°.

x° =  180°-78° = 102°

You might be interested in
Let f(x)=x2−2x−4 . What is the average rate of change for the quadratic function from x=−1 to x = 4?
goblinko [34]

Answer:

The average rate of change for f(x) from x=−1 to x = 4 is, 1

Step-by-step explanation:

Average rate A(x) of change for a function f(x) over [a, b] is given by:

A(x) = \frac{f(b)-f(a)}{b-a}

As per the statement:

f(x) = x^2-2x-4

we have to find the average rate of change from x = -1 to x = 4

At x = -1

f(-1) = (-1)^2-2(-1)-4 = 1+2-4 = -1

and

at x = 4

f(4) = (4)^2-2(4)-4 = 16-8-4 = 4

Substitute these in [1] we have;

A(x) = \frac{f(4)-f(-1)}{4-(-1)}

⇒A(x) = \frac{4-(-1)}{4+1}

⇒A(x) = \frac{5}{5}

Simplify:

A(x) = 1

Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1

4 0
3 years ago
Read 2 more answers
Picture is shown above<br>suppose that y varies directly with x, and y=12 when x=15​
a_sh-v [17]

Step-by-step explanation:

Since y is directly proportional to x,

we have y = kx, where k is a real constant.

When x = 15, y = 12.

=> (12) = k(15), k = 0.8.

Therefore we have y = 0.8x.

When x = 2, y = 0.8(2) = 1.6.

The answer is y = 1.6 when x = 2.

7 0
3 years ago
Read 2 more answers
Cuando dejamos un trozo de chocolate al sol ,se derrite​
Pachacha [2.7K]

Answer:si

Step-by-step explanation:

por la calentura de sol

7 0
3 years ago
There are 40 grams of sugar in a 12 oz can of Dr Pepper. If your max intake of sugar permitted for the day is 25 grams, how much
LenKa [72]
You would be able to drink 7.5oz of the can while you would only intake 25grams of sugar
7 0
3 years ago
Read 2 more answers
How do you convert this decimal 0.3333 to a fraction?
torisob [31]

Answer:

1/3

Step-by-step explanation:

To convert a decimal to percent, we multiply the decimal by 100. To convert a fraction to decimal, we divide the numerator by the denominator using long division and to convert a fraction to percent, we convert the fraction to decimal and the decimal to percent.

8 0
3 years ago
Other questions:
  • 4400 dollars is placed in an account with an annual interest rate of 7.5%. To the nearest tenth of a year, how long will it take
    7·2 answers
  • In a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches. What is the length of the
    6·1 answer
  • How do I draw a quadrilateral whose diagonals bisects each other at right angles with all sides equal in length and opposite sid
    10·1 answer
  • Identify each x-value at which the slope of the tangent line to the function f(x) = 0.2x^2 + 5x − 12 belongs to the interval (-1
    12·2 answers
  • Last Wednesday, students could choose ham or turkey sandwiches for lunch. The cafeteria made 500 sandwiches in all, 270 of which
    12·1 answer
  • Find the mean for each set of data, weights of cats at a pet store in pounds: 5,4,10,7,6​
    10·1 answer
  • PPPPPPPPPPPPPPPPPLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLZZZZZZZZZZZZZZZZZZZZZ Help its due by end of day i relay need a good grade
    9·2 answers
  • Which graph shows the line y = 4x-2?
    10·1 answer
  • The circumference of a circle is 127 cm. What is the area,
    14·1 answer
  • I need help on this guys and plz help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!