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3 years ago

I want the answers because i don't know how to do it

Mathematics

2 answers:

Ivenika [448]3 years ago

8 0

Answer:

ps : <,> mean open circle but ≤,≥ mean u color in the circle when graphing

1) add 3 to y-3 and add three to -12 so it be y ≥ -9

2) -22 ≤ x

3) t < 0

4) d ≤ -11

5) x < -2.2

6) j < - 7/6

if u need any more help i be glad to help

Andrew [12]3 years ago

6 0

Question one is y( Insert sign) -9

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the measure of one angle of the angles in a linear is 30 less than one-half the measure of the other angle. Find the measure of

SVETLANKA909090 [29]

Answer:

140° and 40°

Step-by-step explanation:

let x be one angle then the other is $\frac{1}{2}$ x - 30

Since the angles are a linear pair, theis sum is 180° , then

x + $\frac{1}{2}$ x - 30 = 180, that is

$\frac{3}{2}$ x - 30 = 180 ( add 30 to both sides )

$\frac{3}{2}$ x = 210 ( multiply both sides by 2 to clear the fraction )

3x = 420 ( divide both sides by 3 )

x = 140

and $\frac{1}{2}$ x - 30 = $\frac{1}{2}$ (140) - 30 = 70 - 30 = 40

The 2 angles are 140° and 40°

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3 years ago

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Liula [17]

Answer:

5. 52+56 < 49x -46x

108< 3x

108/3< 3x/3

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2 years ago

If x2 mx m is a perfect-square trinomial, which equation must be true? x2 mx m = (x – 1)2 x2 mx m = (x 1)2 x2 mx m = (x 2)2 x2 m

Leno4ka [110]

An expression has numbers, variables, and mathematical operations. The equation that must be true so that x²+mx+m is a perfect square trinomial is x²+mx+m=(x+2)².

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

A perfect square trinomial is in the form (a+b)²=a²+b²+2ab. If we compare the perfect square trinomial x²+mx+m, we will get that the value of m should be such that it satisfies the equation $m^2+2m$ . Since there is only one value that can satisfy this equation that is 2.

Therefore, the equation that must be true so that x²+mx+m is a perfect square trinomial is x²+mx+m=(x+2)².

Learn more about Expression:

brainly.com/question/13947055

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2 years ago

Round to the nearest thousandth, Height 8 cm and radius 2cm

Vesna [10]

Answer:

125.660 cm^2

Step-by-step explanation:

Surface area of a right cylinder is A=2πrh+2πr^2

π= 3.14

h= 8 cm

r= 2 cm

A=(2)(3.14)(2)(8) + (2)(3.14)(2)^2

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3 years ago

Help help help plz asap

melisa1 [442]

Answer:

Step-by-step explanation:

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