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
fiasKO [112]
3 years ago
9

I want to be a teacher some day and i know this question----------What is -15 -(-8)=? remember a negitive plus a negitive equals

a positive ;) *i will upvote*
Mathematics
1 answer:
irina [24]3 years ago
8 0
Answer is -7 because -15+8=-7
You might be interested in
I need help ASAP.... please help....
avanturin [10]

Answer:

(7x-1)(x-3)

Step-by-step explanation:

7x^2 - 22x + 3

The factors have to add to -22, but multiply to equal 3. But since the "a" value has a number on it, you have to use it too.

(7x +/- [n1]) ( x +/- [n2]) = 7x^2 - 22x + 3

Since the two numbers multiply to a positive value, they have to have the same sign. (7x-1) (x-3) works to produce the expression when it's foiled.

3 0
3 years ago
Read 2 more answers
A spool of rope contains 79 yards of rope. How many​ 4-foot pieces of rope can be cut from the​ spool? How much rope is left​ ov
mart [117]
<h2>Answer:</h2>

59 can be cut from the spool.

3 Inches is left over.

<h2>Step-by-step explanation:</h2>
  1. 237 feet in 79 yards.
  2. 237 / 4 = 59.25
  3. 59 is the whole number, .25 is what is left over.
  4. .25 feet is 3 inches.

8 0
3 years ago
Read 2 more answers
HELP ME PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS URGENTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
bazaltina [42]

9514 1404 393

Answer:

  90 m²

Step-by-step explanation:

The given linear dimensions have the ratio ...

  red/blue = (6 m)/(4 m) = 3/2

The ratio of areas is the square of the ratio of the linear dimensions:

  (red area)/(blue area) = (3/2)²

  S = (blue area)(9/4) = (40 m²)(9/4)

  S = 90 m²

5 0
2 years ago
Evaluate the function f(x) at the given numbers (correct to six decimal places).
statuscvo [17]

Answer:

The values of given function are shown in the below table.

Step-by-step explanation:

The given function is

f(x)=\frac{x^2-5x}{x^2-x-20}

Simplify the given function.

f(x)=\frac{x(x-5)}{x^2-5x+4x-20}

f(x)=\frac{x(x-5)}{x(x-5)+4(x-5)}

f(x)=\frac{x(x-5)}{(x+4)(x-5)}

Cancel out the common factor.

f(x)=\frac{x}{x+4}

Substitute x=5.5 in the above equation.

f(5.5)=\frac{5.5}{5.5+4}

f(5.5)=\frac{5.5}{9.5}

f(5.5)=0.57894736842

f(5.5)\approx 0.578947

Similarly find the value for all values of x.

The values of given function are shown in the below table.

8 0
3 years ago
What is the inverse of y=-x-4
Nimfa-mama [501]

Answer:

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

Step-by-step explanation:

i hope this helps

8 0
3 years ago
Other questions:
  • Micah and his brother found some cash at a bus stop.They split the money evenly, each getting $ 16. How much money did they find
    7·1 answer
  • What is the measure of angle F in degrees when H is 127degrees and G is 33.5 degrees?
    8·1 answer
  • Find the probability of each event. Write each answer as a fraction in simplest form, as a decimal to the nearest hundredth, and
    14·1 answer
  • What is the perimeter of a rectangle whose length is -3x + 4 and a width of 5x - 2?
    7·2 answers
  • Give an example of a real number that is not rational.
    12·1 answer
  • You pay your brother $35 that you owe him. The same week you earn $42 dog sitting for the neighbors. Can you help me write an eq
    12·1 answer
  • Help me help me help me
    8·1 answer
  • Which number is closest to 66 (squared)?<br> A) 8.8<br> B) 8.1<br> C 8.2<br> D) 9.1
    15·2 answers
  • What is the total distance from (-4,-6) (5,-6) in miles
    10·1 answer
  • How do I get to -19 from -6
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!