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3 years ago

Help pls no linksill give you briliantest

Mathematics

1 answer:

Aneli [31]3 years ago

5 0

Answer:

W=20

A=400

Step-by-step explanation:

90+310 for area

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4X+8<28 ayudenme por favor

VMariaS [17]

Answer:

x < 5.

Step-by-step explanation:

Creo que esto es correcto. :')

7 0

2 years ago

Please help me out with this!

Evgen [1.6K]

Answer is;

explanation

midpoint of two points is given by;

{(x1+x2)/2},{(y1+y2)/2}.

midpoint of QS={(2a+2b)/2},{(0+2c)/2}

= {a+b},{c}

5 0

3 years ago

Using the segment addition postulate, which is true? What is the measure of AngleDCF? Three lines extend from point C. The space

Flura [38]

Answer:

129

Step-by-step explanation:

If three lines CD, CE and CF extend from point C, then the following addition postulate is true;

<DCE + <ECF = <DCF

If the space between line C D and C E is 75 degrees, then <DCE = 75

If the space between lines C E and C F is 54, then <ECF = 54.

Substitute the given values into the expression above will give;

<DCF =<DCE + <ECF

<DCF = 75+54

<DCF = 129

Hence the measure of <DCF is 129°

8 0

3 years ago

Which is the solution set to the given inequality |x+3|<12? x infinity(-15,9), x infinity {-15,9], x infinity (00,-15)U(9,00)

Viefleur [7K]

Answer:

Part 1) The solution set is (-15,∞) ∩ (-∞,9)=(-15,9)

Part 2) The ordered pair (1,3) is a solution of the system

Step-by-step explanation:

Part 1) we have

$\left|x+3\right|$

First solution case Positive

$+(x+3)$

$x$

The solution first case is the interval -------> (-∞,9)

Second solution case Negative

$-(x+3)$

$-x-3$

$-x$

$-x$ ------> Multiply by -1 both sides

$x>-15$

The solution second case is the interval -------> (-15,∞)

The solution set is equal to

(-15,∞) ∩ (-∞,9)=(-15,9)

Part 2) we have

$y>-2$ -------> inequality A

$x+y\leq 4$ -----> inequality B

we know that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities

Verify each case

case a) (1,5)

Substitute the value of x and the value of y in the inequality and then compare

Inequality A

$5>-2$ ------> is true

Inequality B

$1+5\leq 4$

$6\leq 4$ -----> is not true

therefore

the ordered pair is not a solution

case b) (0,5)

Substitute the value of x and the value of y in the inequality and then compare

Inequality A

$5>-2$ ------> is true

Inequality B

$0+5\leq 4$

$5\leq 4$ -----> is not true

therefore

the ordered pair is not a solution

case c) (-2,-3)

Substitute the value of x and the value of y in the inequality and then compare

Inequality A

$-3>-2$ ------> is not true

therefore

the ordered pair is not a solution

case d) (1,3)

Substitute the value of x and the value of y in the inequality and then compare

Inequality A

$3>-2$ ------> is true

Inequality B

$1+3\leq 4$

$4\leq 4$ -----> is true

therefore

the ordered pair is a solution

6 0

3 years ago

How do you graph y=3x^2

Rainbow [258]

So because it's x^2 that means it's a parabola. The 3 before it is it's stretch factor (slope, so instead of going over one up one it goes over one up 3)

8 0

3 years ago

Help pls no linksill give you briliantest ​

Help pls no linksill give you briliantest