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2 years ago

Which technique is best to use for x² + 4x = 15

Mathematics

1 answer:

viktelen [127]2 years ago

6 0

U want to go x2 plus x so its x3 then 4x3times -15 so x=3.33333

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Choose 3 values for x that would make this inequality true. X - 4<20

Bond [772]

Answer:

x<24

x<22

x<23

Step-by-step explanation:

X - 4<20

move 4 and add it to 20

x<24

same goes for the other solutions

8 0

2 years ago

4a + 3b - 2a - 6b .. help lol

ycow [4]

Answer:

2a-3b

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Punctele A,B si C sunt coliniare in aceasta ordine.Aflati lungimea segmentului:a)AB,daca AC=20cm,BC=0,12dm

Strike441 [17]

Answer:

The length of the segment AB is 18.8 cm or 1.88 dm

Step-by-step explanation:

The question in English is

Points A, B and C are collinear in this order. Find the length of the segment: a) AB, if AC = 20 cm, BC = 0.12 dm

we have that

$AC=AB+BC$ ----> by Addition segment postulate

substitute the given values in centimeters

Remember that

$1\ dm=10\ cm$

$0.12\ dm=0.12(10)=1.2\ cm$

$20=AB+1.2$

solve for AB

$AB=20-1.2\\AB=18.8\ cm$

Convert to dm

$18.8\ cm=18.8/10=1.88\ dm$

therefore

The length of the segment AB is 18.8 cm or 1.88 dm

3 0

3 years ago

1. Find "V". Round to hundreds. V = LWH L= 29.4 W = 16.7 H = 21.8

postnew [5]

Volume = 10,700

V = LWH

L = 29.4

W = 16.7

H = 21.8

All we need to do is multiply them all together and then round the answer to get our final answer to the hundreds place.

V = LWH

V = 29.4(16.7)(21.8)

V = 490.98(21.8)

V = 10703.364

Then, we need to round it to the hundreds place.

V = 10,700

4 0

2 years ago

The angle measures of triangle QRS are given:

Trava [24]

Answer:

x = 15°

Step-by-step explanation:

(5x-15) + 75 + 3x = 180

8x + 60 = 180

8x = 120

x = 15°

7 0

3 years ago