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
ladessa [460]
3 years ago
8

What is the value of the expression x + (–y) when x = –3.8 and y = 1.7?

Mathematics
1 answer:
agasfer [191]3 years ago
6 0
-3.8 + 1.7 is just like 3.8 - 1.7 just adding a negative sign (-) to it. So, -3.8 + 1.7 = -2.1

You might be interested in
A baseball is thrown upwards from a height of 5 feet with an initial speed of 64 feet per second, and its height h (in feet) fro
mixas84 [53]

For this case we have the following equation:

h(t) = 5 + 64t - 16t^2

To find the time when it reaches its maximum height, we must derive the equation.

We have then:

h'(t)= 64-32t

Then, equaling to zero and clearing the time we have:

64-32t = 0

t =\frac{64}{32}

t = 2

Answer:

the ball reaches its maximum height at:

C. 2

5 0
3 years ago
Read 3 more answers
Elijah calculated the area of a circle to be 900π units². Which of the following was the radius of the circle?
scZoUnD [109]

Answer: A. 30

Step-by-step explanation:

The formula for the area of a circle is pi*r^2, where r is the radius of the circle.

900pi = pi*r^2

Divide both sides by pi.

900 = r^2

Square root both sides.

r = +/- 30.

Since the radius cannot be negative, the answer is 30 units.

7 0
2 years ago
Evaluate the expression, using the given value of the variable.
Bond [772]
4-2x+5x=\ \ \ \ | grouping\ numbers\\\\
4+3x\ \ \ \ | substitute\ x=4\\\\
4+3*4=4+12=16\\\\
Answer\ is\ C.
8 0
3 years ago
For two functions, m(x) and p(x), a statement is made that m(x) = p(x) at x = 7. What is definitely true about x = 7? (2 points)
Virty [35]
<span>A)Both m(x) and p(x) cross the x-axis at 7.
B)Both m(x) and p(x) cross the y-axis at 7.
C)Both m(x) and p(x) have the same output value at x = 7.
D)Both m(x) and p(x) have a maximum or minimum value at x = 7.

m(x) = p(x) at x = 7
</span><span>
True statement about x = 7. 
C)Both m(x) and p(x) have the same output value at x = 7. </span><span>

</span>
7 0
3 years ago
Read 2 more answers
What is the property of 42x1=42
Ira Lisetskai [31]
Identity property of multiplication
7 0
3 years ago
Other questions:
  • What is the slope intercept form of (4,-3) slope of 1/4
    10·1 answer
  • You have 3/4 cup of salsa for making burritos. Each burrito requires 1/8 cup of salsa. How many burritos can you make?
    9·2 answers
  • Which of the following expressions is equivalent to 6m - 10?
    12·1 answer
  • Carlos is five years older than twice his sister's age. Carlos is 13.
    11·2 answers
  • 34. its really hard. pls help
    13·1 answer
  • Need help finding the value of X. Thanks
    7·2 answers
  • Find the volume of a right circular cone that has a height of 3.9 in and a base with a radius of 14.3 in. Round your answer to t
    12·2 answers
  • PLEASE HELP!!!if the unit rate for the line B is 7meters/seconds , which if the following is not a possible value for the unit r
    13·1 answer
  • PLS HELP ITS URGENT!!
    14·1 answer
  • If a sample of n = 4 scores is obtained from a normal population with µ = 70 and σ = 12. What is the z-score corresponding to a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!