All categories

3 years ago

What is the sum of -7 and 3? A. -4 B. -3 C. 3 D. 4

Mathematics

2 answers:

blondinia [14]3 years ago

8 0

Answer:

<h2>The Correct answer is A. -4</h2>

Step-by-step explanation:

Take -7, then count up 3 times

-7, -6, -5, -4

boom, there's your answer, very simple.

lions [1.4K]3 years ago

3 0

Answer:

-4

Step-by-step explanation:

Using a number line can help solve this problem

-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1

To add a positive number to a negative one, we are going to move that number of spaces to the right (We are adding positive 3 to negative 7, so we are moving 3 spaces to the right)

-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1

^ We start here at negative 7

-10 -9 -8 <em>-7</em><em> </em>-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1

^ ^ ^ Then move three to the right

-10 -9 -8 -7 -6 -5 <u>-4</u> -3 -2 -1 0 1 2 3 4 5 6 7 8 9 1

So -4 is our answer

You might be interested in

The sum of a number and its square is 182. Find the number.

Mars2501 [29]

Answer:

13 and -14 satisfy this condition

Step-by-step explanation:

Let's represent that number as x

and the square of x is x^2

So,

x + x^2 = 182

Subtract 182 from both sides

x + x^2 - 182 = 182 - 182

x + x^2 - 182 = 0

rearrange the quadratic equation

x^2 + x -182 = 0

let's use the quadratic formula

$\frac{-b+\sqrt{b^2-4ac} }{2a}$ or $\frac{-b-\sqrt{b^2-4ac} }{2a}$

a = 1, b = 1, c = -182

$\frac{-1+\sqrt{1^2-4*1*(-182)} }{2*1}$ or $\frac{-1-\sqrt{1^2-4*1*(-182)} }{2*1}$

$\frac{-1+\sqrt{1+728} }{2}$ or $\frac{-1-\sqrt{1+728} }{2}$

$\frac{-1+\sqrt{729} }{2}$ or $\frac{-1-\sqrt{729} }{2}$

$\frac{-1+{27} }{2}$ or $\frac{-1-{27} }{2}$

$\frac{26}{2}$ or $\frac{-28}{2}$

13 or - 14

Lets check

13 + 13^2 = 13 + 169

= 182

Also,

-14 + (-14^2) = -14 + 196

= 182

8 0

3 years ago

1.8(b - 5.3) - 4.2=5.8(b -2.3. What is the value of b

horrorfan [7]

Answer:

b= -0.1

Step-by-step explanation:

6 0

3 years ago

.....................

Studentka2010 [4]

Answer:

B. √16 × √6

C. √96

Step-by-step explanation:

4√6

4 can be written as a square root.

4 = √16

√16 × √6

The square roots are multiplied, they can be written under one whole square root.

√(16 × 6)

√96

4 0

3 years ago

For options A– E choose all of the expressions that are equivalent to 3(4x + 3).

Katen [24]

3(4x+3) = 12x + 9
A= 3(4x+1)
B= 9 + 12x
C= 7x + 6
D= 12x + 9
E= 12x + 9

Answer: D, E

Hope This Helps✨

3 0

3 years ago

An example of a rectangular Prism can be: A globe or ball O Fish tank o Bowl Can

garik1379 [7]

Answer:

Fish Tank

Step-by-step explanation:

This of a rectangular prism as a cardboard box. It has rectangles on the top and the bottom. The fish tank is somewhat similar to this so it will be a rectangular prism.

3 0

3 years ago