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3 years ago

ALLL MY POINTS PLSSS HELPPPPP

Mathematics

2 answers:

mash [69]3 years ago

5 0

Answer:

The answer is right

Step-by-step explanation:

100% sure

Rama09 [41]3 years ago

3 0

Rewrite the given quadratic equation in standard form: Kx 2 + 2x - 1 = 0

Discriminant = 4 - 4(K)(-1) = 4 + 4K

For the equation to have two real solutions, the discriminant has to be positive. Hence we need to solve the inequality 4 + 4K > 0.

The solution set to the above inequality is given by: K > -1 for which the given equation has two real solutions.

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Marla did 65 sit ups each day for one week use the distributive property to show an expression you can use to find the total num

nignag [31]

Ok so without the distributive property we would do 65*7. All u have to do is spread it out like this:-

65+65+65+65+65+65+65=455

hope i helped u:D

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2 years ago

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cheryl says that when you add two negative numbers, the sum is always negative. is Cheryl's statement true of false?

Andrews [41]

Answer:

wwo

Step-by-step explanation:

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2 years ago

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4. Assume that you have a part-time job at which you work 20 hours per week at the rate

charle [14.2K]

Answer:

0.125

7.50/60=1.25

since there 60 minutes in one hour you would divide the hourly rate by 60.

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3 years ago

What amount would yield an interest of $66 in 2 years at 3% p.a.?

yuradex [85]

It would be 12 because you have to solve for the percent

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2 years ago

What is the area of the composite figure? (use 3.14 for pi). Explain how you arrived at your answer. Please round to the nearest

maksim [4K]

The area of the given diagram is 29.817 square centimeters. The given diagram is combination of rectangle and semi circle.

Step-by-step explanation:

The given is,

Given diagram is combination of Rectangle and Semi circle.

Step:1

Res the attachment,

Area of given diagram = Area of A + Area of B..............(1)

Step:2

For A,

The A section in the given diagram is semi circle,

Diameter of semi circle = Total distance - ( 2+3)

( ∵ 2, 3 are top distance in the given diagram)

$= 10 - 5$

Diameter, d = 5 cm

Radius, $r = \frac{d}{2}$

$r = \frac{5}{2}$

r = 2.5 cm

Area, $A_{A} = \frac {\pi r^{2} }{2}$ ........................(2)

$A_{A} = \frac {\pi (2.5)^{2} }{2}$

$= \frac {\pi ( 6.25) }{2}$

$= \frac{19.63}{2}$

$A_{A} = 9.8174 cm^{2}$

Step:3

For B,

Area of rectangle is,

$A_{B} =lb$ .....................(3)

Where, l - Length = 10 cm

b - Width = 2 cm

Equation (3) become,

$= (10)(2)$

$= 20$

Area of B, $A_{B}$ = 20 $cm^{2}$

Step:4

From the equation (1),

Area of given diagram = 20+ 9.81747

Area = 29.817 square centimeters

Result:

The area of the given diagram is 29.817 square centimeters. The given diagram is combination of rectangle and semi circle.

5 0

2 years ago