Ask question

Ask question

All categories

2 years ago

14

Jill has 12 books. She thinks that if she gives away 4 books, she will have 8 books left. Which addition sentence can she use to

check her subtraction?

1 answer:

laila [671]2 years ago

8 0

Answer:

8+4

Step-by-step explanation:

You might be interested in

2+6i/2-4i = a + bi What is the value of a? What is the value of b?

Talja [164]

$\dfrac{2+6i}{2-4i}\\\\\\=\dfrac{2(1+3i)}{2(1-2i)}\\\\\\=\dfrac{1+3i}{1-2i}\\\\\\=\dfrac{(1+3i)(1+2i)}{(1-2i)(1+2i)}\\\\\\=\dfrac{1+2i+3i+6i^2}{1-(2i)^2}\\\\\\=\dfrac{1+5i-6}{1+4}~~~~;[i^2=-1]\\\\\\=\dfrac{5i-5}{5}\\\\\\=\dfrac{5(i-1)}5\\\\=i-1\\\\=-1+i\\\\\text{It is in a form of a +bi so,}~ a = -1~ \text{and}~ b = 1$

6 0

2 years ago

Algebraic factorisation simplification long question

qwelly [4]

Answer:Algebra Questions, for Grade 10, on simplifying, factoring, evaluating expressions and solving equations are presented along with their answers

Step-by-step explanation:

I do not know if this helps or not but here you go!

3 0

2 years ago

Please help me with 11 and 12. The first best answer gets brainlist.

ololo11 [35]

Bracelet

There are 2 bracelets and she possibly picks three. :)

5 0

2 years ago

Can someone please help me with this problem?

Bumek [7]

Answer:

f'(1) = 2

Step-by-step explanation:

f(x) = 2x^2 -2x +3

Take the derivative

f'(x) = 2 * 2x - 2 * 1

f'(x) = 4x -2

f'(1) = 4(1) -2

=4-2

=2

4 0

3 years ago

A plane is flying at 35,000 feet. it ascends 1,500 feet to avoid turbulence. it decends 3/5 of its new height to prepare for lan

Serjik [45]

Answer:Ascending Height : 36,500 feet Descending Height : 14,600 feet

Step-by-step explanation:

6 0

3 years ago