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
vladimir2022 [97]
3 years ago
10

What number makes the expressions equivalent?

Mathematics
1 answer:
liq [111]3 years ago
7 0

Answer:

-11,8 or 11,8........both are correct

You might be interested in
If marta travels 8 miles in 80 minutes how many miles will she travel in 210 minutes
Y_Kistochka [10]
It's easier if you know 1 minutes = ... miles

If, 80 minutes = 8 miles
Then, 1 minute = 0.1 mile

Therefore 210 minutes = 210 . 0.1 miles = 21 miles
7 0
3 years ago
Find the values of x and y
Zina [86]

Answer:

see below

Step-by-step explanation:

• find x

use tan rule

tan( 60 degrees) = x / 7

tan ( 60 ) x 7 = 12 . 1

x = 12. 1

• find y

you can either use Pythagoras theorem or the sin rule

let's use sin

sin ( 30 ) = 7 / y

y = 14.0

hope this helps, please mark it

3 0
3 years ago
Help please, I attached the question. Is it a!? <br> 
AVprozaik [17]

Answer:

A

Step-by-step explanation:

Recall that for a quadratic equation of the form:

0=ax^2+bx+c

The number of solutions it has can be determined using its discriminant:  

\Delta = b^2-4ac

Where:

  • If the discriminant is positive, we have two real solutions.
  • If the discriminant is negative, we have no real solutions.
  • And if the discriminant is zero, we have exactly one solution.

We have the equation:

2x^2+5x-k=0

Thus, <em>a</em> = 2, <em>b</em> = 5, and <em>c</em> = -<em>k</em>.

In order for the equation to have exactly one distinct solution, the discriminant must equal zero. Hence:

b^2-4ac=0

Substitute:

(5)^2-4(2)(-k)=0

Solve for <em>k</em>. Simplify:

25+8k=0

Solve:

\displaystyle k = -\frac{25}{8}

Thus, our answer is indeed A.

3 0
3 years ago
Read 2 more answers
Pls help I’ll give brainliest
DanielleElmas [232]

Answer:

B)  7 gallons

Step-by-step explanation:

car begins with 12 gallons and, at a rate of 29 mpg, would allow the car to travel for 348 miles

car only traveled 140 miles so 208 miles more can be driven

208÷29 is approx 7 gallons

7 0
3 years ago
Which of the following combinations cannot be the side lengths of a triangle?
Neporo4naja [7]
The sum of the two short legs must be at least as long as the longest leg.

This requirement for a triangle is NOT met by the 2nd selection. Those lengths cannot be a triangle.
8 0
4 years ago
Other questions:
  • 12a^3b^2 +18a²b^2 – 12ab^2<br> Factor completely
    7·1 answer
  • Two cars are 750 miles apart and start moving towards each other. One car moves with the average speed of 40 mph and the other i
    5·2 answers
  • ( 20 pts) pls help me rq thankx!
    7·1 answer
  • What does the line x = -5 look like? Horizontal vertical tilted right upwards or tilted right downwards
    11·1 answer
  • Can anyone solve this math question
    12·1 answer
  • Find the center and radius of the circle whose equation is x^2 + y^2 - 6x - 2y + 4 = 0
    9·2 answers
  • What is the base of a triangle that has an area of 60 square centimeters and a height of 8 centimeters?
    6·1 answer
  • Helppppppppppppp please
    9·2 answers
  • Find the volume of a cylinder if it has a diameter of 8 and a height of 12. Leave your answer in terms of pi
    10·1 answer
  • The position of a submarine relative to sea level, changes by - 7 miles each hour. How many hours did it take
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!