All categories

3 years ago

Evaluate y/4-2y-3 when y = -4

Mathematics

2 answers:

Nastasia [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Hope that helps!

Valentin [98]3 years ago

6 0

9514 1404 393

Answer:

Step-by-step explanation:

Substitute the given value for y, then do the arithmetic.

$\dfrac{y}{4}-2y-3\\\\=\dfrac{-4}{4}-2(-4) -3 \qquad\text{use $y=-4$}\\\\=-1+8-3=7-3=\boxed{4}$

You might be interested in

What us problems 6 and 7?<br>

Sunny_sXe [5.5K]

Answer:

y=(x+7)2(2x+1)(x−4)

y=2x4+21x3−4x2−399x−196

Step-by-step explanation:

8 0

3 years ago

What is the perimeter of the figure

anastassius [24]

Answer:

Option A.

$P=73.4\ units$

Step-by-step explanation:

see the attached figure with letters to better understand the problem

In this problem we have a triangle with a circle inscribed in it

$A.F=A.B\\C.B=C.D\\E.F=E.D$

step 1

Find the length side B.C

$C.B=A.C-A.B$

substitute the given values

$C.B=23-14=9\ units$

step 2

Find the length side C.D

Remember that

$C.D=C.B$

therefore

$C.D=9\ units$

step 3

Find the length side E.D

we know that

$E.D=E.C-C.D$

substitute the given values

$E.D=22.7-9=13.7\ units$

step 4

Find the length side E.F

Remember that

$E.F=E.D$

therefore

$E.F=13.7\ units$

step 5

Find the length side A.F

Remember that

$A.F=A.B$

therefore

$A.F=14\ units$

step 6

Find the perimeter

$P=23+22.7+13.7+14$

$P=73.4\ units$

6 0

3 years ago

Help me I really need help answer asappppppppp

labwork [276]

Answer:

$4.76

Step-by-step explanation:

The cost is $15.24

She gave $20.00

Therefore, you subtract to find the change she would receive.

20-15.24=4.76

This means that she should get $4.76 in change

Hope this was helpful

5 0

4 years ago

Read 2 more answers

In how many ways can Susan arrange 10 books into 3 slots on her bookshelf?

ahrayia [7]

Hello there,

If she has 10 books and she can arrange it 3 ways on her bookshelf, you just multiply 10 and 3

10 x 3= 30

Susan can arrange 10 books into 3 slots 30 ways.

Hope this helps!

4 0

3 years ago

Anyone please help me

QveST [7]

Standard form of a quadratic equation: ax^2 + bx + c = 0

4x^2 - 5x + 10 = 2x

4x^2 - 7x + 10 = 0

Hope this helps!

6 0

3 years ago

Evaluate y/4-2y-3 when y = -4​

Evaluate y/4-2y-3 when y = -4