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elena-14-01-66 [18.8K]

3 years ago

10

Solve using the systems of linear inequalities

la1" title="4x + y \geqslant 2" alt="4x + y \geqslant 2" align="absmiddle" class="latex-formula">

1 answer:

Archy [21]3 years ago

5 0

The linear inequality for x is x ≥ 1/2-y/4
The linear inequality for y is y ≥ 2-4x

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X²=169 extracting square root

ryzh [129]

Answer:

x = ± 13

Step-by-step explanation:

Given

x² = 169 ( take the square root of both sides )

x = ± $\sqrt{169}$ = ± 13

Since 13 × 13 = 169 and - 13× - 13 = 169

7 0

3 years ago

Evaluate the expression when c=3 and y=-4. 8c-y

Savatey [412]

Answer:

28

Step-by-step explanation:

8c - y

8( 3) - (- 4)

24 + 4

28

3 0

3 years ago

Find p(0),p(1),p(-1) and p(2) of the 3x(x-2) <br><br>

Effectus [21]

Answer:

<u>make x→0</u>

$p(0)=(0)^{2}-3(0)+2$

→ $p(0)=0+0+2$

→ $p(0)=2$

$------$

<u>Replace x→-1</u>

$p(-1)=(-1) ^{2} -3 (-1)+2$

→ $p(-1)=1-3+2$

→ $p(-1)=0$

$----------$

<u>Now make x→2</u>

$p(2)=(2) ^{2} -3(2)+2$

→ $p(2)=4-6+2$

→ $p(2)=0$

$Answer:-2,0,0$

$-----------$

hope it helps...

have a great day!!

5 0

3 years ago

I need this please help

Korolek [52]

Answer:

30

Step-by-step explanation:

Add all of them

5 0

3 years ago

100 points and brainliest for correct answer!

MatroZZZ [7]

Answer B.

∑fx=1637,∑fx
2
=127663,∑f=21
x
ˉ
=Mean=
∑t
∑fx

=77.95
σ
2
=
∑f
∑fx
2

−(
x
ˉ
)
2
=
21
127663

−(77.95)
2
=2.987
σ=1.728

4 0

2 years ago