3 years ago

Which expression is equivalent to 4-(-7)

Mathematics

2 answers:

True [87]3 years ago

8 0

Answer:

4-(-7)=11

-4-7=-11

-4+7=3

-7-4=-11

so neither 3 choices work

hope this helps

have a good day :)

Step-by-step explanation:

guajiro [1.7K]3 years ago

6 0

Answer: 4+7
Explanation: 4 - (-7) means 4 - -7. So connect the two subtraction signs and make a plus sign. 4+7 is what you’ll get.

You might be interested in

The sales tax is$9.12 on the purchase of a patio set that sales for $456. What is the sales tax rate?

kozerog [31]

9.12/456=0.02
To check, 456x0.02=9.12
so the tax is 2%

3 0

4 years ago

Algebraic expression and identity 1)simplify the following (3a+b)3 +(3a-b)3

mylen [45]

Answer:

$(3a+b)^3+(3a-b)^3=54a^3+18ab^2$

Step-by-step explanation:

Given: $(3a+b)^3+(3a-b)^3$

Formula: $x^3+y^3=(x+y)(x^2-xy+y^2)$

$(x+y)^2=x^2+2xy+y^2$

$(x-y)^2=x^2-2xy+y^2$

$x\rightarrow 3a+b$

$y\rightarrow 3a-b$

$\Rightarrow (3a+b+3a-b)((3a+b)^2-(3a+b)(3a-b)+(3a-b)^2)$

$\Rightarrow (6a)(9a^2+b^2+6ab-9a^2+b^2+9a^2+b^2-6ab)$

$\Rightarrow (6a)(9a^2+3b^2)$

$\Rightarrow 54a^3+18ab^2$

5 0

3 years ago

Factorise this expression:

Vesnalui [34]

Yes you are correct, GCF of both terms is x, so you can factor x out.

3x - x² ⇒ x(3 - x)

6 0

3 years ago

Read 2 more answers

Solve for x. -6x+14<-28 and 3x+28<25

Aliun [14]

Answer:

x>-7 and x<-1

Step-by-step explanation:

3 0

3 years ago

Dylan's dog weighs 12 times as much is his pet rabbit. The dog and rabbit way 104 pounds altogether how much is Dylan's dog weig

san4es73 [151]

104+104=208 *12=2496

7 0

4 years ago

Read 2 more answers