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3 years ago

N is an interger write down the values of n such that -8<4n<12

Mathematics

2 answers:

shepuryov [24]3 years ago

4 0

I hope this helps you

-8÷4 <4n÷4 <12÷4

-2 <n <3

n= -1,0,1,2

Yanka [14]3 years ago

4 0

2 or 1 are both values of n.

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I will mark brainliest to whoever helps! :D

Arte-miy333 [17]

Answer:

-7/2y

Step-by-step explanation:

cancel out the Z's than youre left with -7/2y :}

8 0

3 years ago

What does x+7=2 what does x mean

Ksenya-84 [330]

Answer:-5

Step-by-step explanation:

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3 years ago

Vector v has a direction of (-4,27) find the direction angle for v

mixas84 [53]

$\bf \begin{array}{lclll}
\ \textless \ &-4&,&27\ \textgreater \ \\
&\uparrow &&\uparrow \\
&a&&b
\end{array}\qquad tan(\theta)=\cfrac{b}{a}\implies \measuredangle \theta=tan^{-1}\left( \frac{b}{a} \right)
\\\\\\
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3 years ago

Find the value of in the triangle shown below.

Vesnalui [34]

Step-by-step explanation:

in isoscles triangles two angles and lengths are equal .

two sides equal 3.5

so both of the angles are 55°

the sum of the angles in a triangle is 180°, so

x = 180° - 55° - 55°

x = 70° (Ans)

6 0

3 years ago

a 400 g of a liquid of density 1.6g/cm3 is made from mixing liquids of density 1.2g/cm3 and 1.8g/cm3 find the mass of the liquid

gogolik [260]

Answer:

133.33g

Step-by-step explanation:

Let the:

Mass of 1.2g/cm³ of liquid = x

Mass of 1.8g/cm³ of liquid = y

From our Question above, our system of equations is given as:

x + y = 400........ Equation 1

x = 400 - y

1.2 × x + 1.8 × y = 1.6 × 400

1.2x + 1.8y = 640..... Equation 2

We substitute, 400 - y for x in Equation 2

1.2(400 - y) + 1.8y = 640

480 - 1.2y + 1.8y = 640

- 1.2y + 1.8y = 640 - 480

0.6y = 160

y = 160/0.6y

y = 266.67 g

Solving for x

x = 400 - y

x = 400 - 266.67g

x = 133.33g

Therefore, the mass of the liquid of density 1.2g/cm³ is 133.33g

7 0

3 years ago