All categories

4 years ago

(45 POINTS AND BRAINLIEST FOR FIRST ANSWER)

Mathematics

2 answers:

dezoksy [38]4 years ago

8 0

Addition: negative four plus negative four plus negative four equals negative twelve

Multiplication: negative four times three equals negative twelve

Division: twelve divided by 3 equals negative four

abruzzese [7]4 years ago

6 0

Answer:

0+-12

-4 times 3

12 divided -3

You might be interested in

What equals 2+(65+7)x3

Svetlanka [38]

2+(65+7)x3=2+72x3=2+216=218 answer is 218

6 0

3 years ago

Can someone please answer both these two Algebra questions asap thanks.

Tems11 [23]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

(7)

Here m = - 3 and (a, b) = (5, 1), thus

y - 1 = - 3(x - 5) ← equation of line

(8)

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = A(- 2, 1) and (x₂, y₂ ) = B(- 1, 3)

m = $\frac{3-1}{-1+2}$ = 2

Using any of the 2 points as (a, b)

Using m = 2 and (a, b) = (- 2, 1), then

y - 1 = 2(x - (- 2)), that is

y - 1 = 2(x + 2) ← equation of line

8 0

4 years ago

Solve this equation by completing the square: x2 + 4x – 13 = –8

marishachu [46]

Answer:

x = 1 or x = -5

Step-by-step explanation:

We are given;

The quadratic equation, x² + 4x - 13 = -8

We are required to solve the equation using the completing square method.

To do this, we use the following steps;

Step 1: We make sure the coefficient of x² is one

x² + 4x - 13 = -8

Step 2: Combine the like terms (take the constant term to the other side)

x² + 4x - 13 = -8

x² + 4x = -8 + 13

we get

x² + 4x = 5

Step 3: We add the square of half the coefficient of x on both sides of the equation

Coefficient of x = 4

Half of coefficient of x = 2

Square of half the coefficient of x = 2² (4)

We get;

x² + 4x + (2²) = 5 + (2²)

Step 4: Put x and 2 under one square and the solve the other side of the equation.

We get

(x + 2)² = 5 + 4

(x + 2)² = 9

Step 5: Get the square root on both sides of the equation;

(x + 2)² = 9

√(x + 2)² = ±√9

(x + 2)= ±3

Therefore;

x+2 = + 3 or x + 2 = -3

Thus, x = 1 or -5

The solution of the equation is x = 1 or x = -5

6 0

3 years ago

$ 3000 for 3 years at 6% compounded semiannually

Vanyuwa [196]

Included a pic of the solution and work.

7 0

3 years ago

There are 15 animals on the farm which contains dog and chickens. There are 50 legs in total. How many dogs are there in the far

notsponge [240]

Answer:

B: 10

Step-by-step explanation:

3 0

3 years ago