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
r-ruslan [8.4K]
3 years ago
6

Find the product. (-7)(-9) =

Mathematics
2 answers:
Lostsunrise [7]3 years ago
7 0

Answer:

63

Step-by-step explanation:

7*9 = 63

-7*-9 = 63

negative*negative = positive

negative*negative*negative = negative

Even negative numbers are always positive on multiplication odd negative numbers on multiplication are always negative

Hope I helped

<h2><em>DaniElSabiondo</em></h2>
barxatty [35]3 years ago
6 0

Answer:

63

Step-by-step explanation:

7*9=63 equal on negative

You might be interested in
Pls!!!!!!!!!!!!!!!!!!!!​
lesya692 [45]

Answer:

C

Step-by-step explanation:

The table shows a linear function.

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (1, 3) and (x₂, y₂ ) = (2, 7) ← 2 ordered pairs from the table

m = \frac{7-3}{2-1} = 4, thus

y = 4x + c ← is the partial equation

To find c substitute any ordered pair into the partial equation

Using (1, 3), then

3 = 4 + c ⇒ c = 3 - 4 = - 1

y = 4x - 1 → C

3 0
3 years ago
In a 3-digit number, the hundreds digit is one more than the ones digit and the tens digit is twice the hundreds digit. If the s
MaRussiya [10]

Answer:

The mentioned number in the exercise is:

  • <u>362</u>

Step-by-step explanation:

To obtain the mentioned number in the exercise, first you must write the equations you can obtain with it.

If:

  • x = hundredths digit
  • y = tens digit
  • z = ones digit

We can write:

  1. x = z + 1 (the hundreds digit is one more than the ones digit).
  2. y = 2x (the tens digit is twice the hundreds digit).
  3. x + y + z = 11 (the sum of the digits is 11).

Taking into account these data, we can use the third equation and replace it to obtain the number and the value of each digit:

  • x + y + z = 11
  • (z + 1) + y + z = 11 (remember x = z + 1)
  • z + 1 + y + z = 11
  • z + z +y + 1 = 11 (we just ordered the equation)
  • 2z + y + 1 = 11 (z + z = 2z)
  • 2z + y = 11 - 1 (we passed the +1 to the other side of the equality to subtract)
  • 2z + y = 10
  • 2z + (2x) = 10 (remember y = 2x)
  • 2z + 2x = 10
  • 2z + 2(z + 1) = 10 (x = z + 1 again)
  • 2z + 2z + 2 = 10
  • 4z + 2 = 10
  • 4z = 10 - 2
  • 4z = 8
  • z = 8/4
  • <u>z = 2</u>

Now, we know z (the ones digit) is 2, we can use the first equation to obtain the value of x:

  • x = z + 1
  • x = 2 + 1
  • <u>x = 3</u>

And we'll use the second equation to obtain the value of y (the tens digit):

  • y = 2x
  • y = 2(3)
  • <u>y = 6</u>

Organizing the digits, we obtain the number:

  • Number = xyz
  • <u>Number = 362</u>

As you can see, <em><u>the obtained number is 362</u></em>.

8 0
3 years ago
Sales tax in Harris County is 7%. If the sales tax on a new car was $1400, what was the selling price of the car?
Dahasolnce [82]

Answer:

Bill of sale is not itemized or no sales tax has been paid to the state where the vehicle was purchased Sales tax is calculated using the following formula: (Vehicle Price – Trade in Value) x 6.25.

Step-by-step explanation:

3 0
3 years ago
The three perpendicular bisectors of a triangle intersect at the_____.
lubasha [3.4K]

Answer:

centroid

Step-by-step explanation:

Definition of a centroid

4 0
3 years ago
HI PLEASE ANSWER THIS QUESTION THANK YOU SO MUCH!
krek1111 [17]

1.  m³

2. cm³

3. s³

<h3>What is Unit?</h3>

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

1. Volume is measure in m³

2.  volume of a rectangular pencil case in cm³

3. V = s x s x s or s³

Learn more about volume here:

brainly.com/question/1324203

#SPJ1

3 0
2 years ago
Other questions:
  • Sal is mixing plant food for his garden. The plant food requires 5 1/2 gallons of water, but his measuring container has marks f
    15·1 answer
  • When is it easiest to find the percent of a number using a fraction?using a decimal?
    13·1 answer
  • Your friend just purchased a new hybrid for $25,236. She received $3,110 for her trade in and used that money as a down payment
    7·1 answer
  • Use the Coordinate Plane below to graph the following linear equation for the range x [0,6] using the equation y= x/2
    15·1 answer
  • Tonisha has a lemonade stand. She has $25 in expenses and wants to make at least $55 per day.
    7·1 answer
  • Plz answer asap thanks
    14·2 answers
  • What is the formula for a triangle prism
    14·1 answer
  • So I know someone just yelled at me after I tried to help them but I need help too
    14·1 answer
  • HELP PLS
    12·2 answers
  • One number is 8 more than another, and their sum is 80. What is the smaller number?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!