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Mandarinka [93]
3 years ago
11

What values of x make the expression (x+4)(x-6) negative

Mathematics
1 answer:
masya89 [10]3 years ago
8 0

Anything under 6 would make it negative as a positive times a negative equals a negative basically the x+4 doesn't matter as long as it's positive and the x-6 as long as that's negative it doesn't matter the area in which they have to be is -3 to 5

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Please help me do to night
Vesna [10]

Answer:

1.) -4x+30y 2.) distributive property 3.) -4x+30y, (-0.4(3)+3(2)), 10(-1,2)+10(6), -12+60, =48

Step-by-step explanation:

10(-0.4x+3y)= 10(-0.4x)+10(3y)= -4x+30y

10(-0.4(3)+3(2))

10(-0.4(3))+10(3(2))

10(-1.2)+10(6)

-12+60

= 48

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2 years ago
True or false? About 10 1/2 million more people live in Cairo than in Washington DC?
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Given a rectangle with lengths of 7 meters and widths of 5 metres,what would be the perimeter
Vsevolod [243]

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Perimeter = 24 meters

step by step explanation

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2 years ago
Which of the following estimates at a 95% confidence level most likely comes form a small sample?
KonstantinChe [14]

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6 0
2 years ago
Find the formula for the area A and the perimeter P of the shape shown find the area and perimeter when R is 5 cm find R when A
Ghella [55]

Answer:

1)Area; A = ¼πr²

Perimeter; P = πr/2 + 2r

2)A = 19.63 cm²

P = 17.85 cm

3) r = 8.885 cm

4) r = 14 cm

Step-by-step explanation:

This is a quadrant of a circle. Thus;

Area of a circle is πr². A quadrant is a quarter of a circle. Thus;

Formula for Quadrant Area is; A = ¼πr²

A) Perimeter of a circle is 2πr. Thus, perimeter of a quadrant is a quarter of the full circle perimeter.

Formula for the quadrant perimeter in the image given is;

P = 2πr/4 + 2r

P = πr/2 + 2r

B) When r is 5 cm;

A = ¼π(5)²

A = 19.63 cm²

P = π(5)/2 + 2(5)

P = 17.85 cm

C) when A is 100cm²:

¼πr² = 100

r² = 100 × 4/π

r² = 78.9358

r = √78.9358

r = 8.885 cm

D) when P = 50 cm.

50 = πr/2 + 2r

50 = (½π + 2)r

r = 50/(½π + 2)

r = 14 cm

6 0
2 years ago
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