3 years ago

(−2)(−2)+4 is equal to

Mathematics

1 answer:

abruzzese [7]3 years ago

8 0

Answer:

Step-by-step explanation:

[-2][-2]=-2 x-2=4

4+4=8

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(7 4/9 −8)∙3.6–1.6∙( 1/8 − 3/4 )+1 2/5 ÷(−0.35)

lidiya [134]

Answer:

-7

Step-by-step explanation:

(7 4/9 −8)∙3.6–1.6∙( 1/8 − 3/4 )+1 2/5 ÷(−0.35)

PEMDAS, parenthesis

-5/9∙3.6–1.6∙(1/8-6/8)+1 2/5 ÷(−0.35)

PEMDAS, division

-5/9∙3.6–1.6∙-5/8-4

PEMDAS, multiplication

-5/9∙ 18/5– 8/5 ∙-5/8-4

-2-1-4

PEMDAS, subtraction

-7

Hope this helps! Please mark brainliest :)

3 0

3 years ago

Solve the system by substitution. y=−3x-2 -7x+3y=10 PLEASE HELP

enyata [817]

Y=-3x-2
subsitute -3x-2 for y
-7x+3(-3x-2)=10
distribute
a(b+c)=ab+ac
3(-3x-2)=-9x-6

-7x-9x-6=10
add like terms
-16x-6=10
add 6
-16x=16
multiply -1
16x=-16
divide 16
x=-1

subsitute
y=-3x-2
y=-3(-1)-2
y=3-2
y=1

x=-1
y=1

(x,y)
(-1,1)

7 0

3 years ago

a recipe called for 6/8 cups of sugar for the cupcakes and another 2/8 cups for the icing. What is the total amount of sugar nee

Elina [12.6K]

9/8 or 1 1/2 hope that helps

8 0

3 years ago

There is 1/4 of a dish of candy left on the table. Three brothers are going to share the candy evenly. Name the fraction of the

8_murik_8 [283]

1/12
1/4 divided by 3 equals 1/12
Hope this helped! :)

8 0

3 years ago

Find x. \/3 1.5 3 \/3 2

serg [7]

$x = \sqrt{3}$

Step-by-step explanation:

Given:

$\sin(ABC) = \frac{AC}{AB}$

$= > \sin(60) = \frac{3}{AB}$

$= >AB= 2 \sqrt{3}$

Now by Pythagoras theorem,

$AC^{2} + BC^{2} = AB^{2}$

Substituting values,

${3}^{2} + {x}^{2} = (2 \sqrt{3})^{2}$

$= > {x} = \sqrt{3}$

Hence, value of x is $\sqrt{3}$

3 0

2 years ago

Read 2 more answers