please help im having a really hard time in math i could use some help

Answer:

Step-by-step explanation:

The number of defective laptops = 6/145 * 100 as a percent.

The number of defective laptops = 4.13% in a sample of 145

A: False. The percentage should be the same for 290 laptops. The % does not change. The number of defective laptops will change (12)

B: True. It is a reason assertion that about 4% of all laptops will be defective.

C: True. It is not reasonable to assume that only 0.5 laptops will be defective. .5% is too small.

D: True. 10% is too high.

E: False. The variation should not be much.

Answer:

C

Step-by-step explanation:

Answer:

y=7(6)^x

xStep-by-step explanation:

Answer:

y=-4x

Step-by-step explanation:.

Answer:

Steel, steel just more in general

Step-by-step explanation:

Answer:

Step-by-step explanation:

5.3 in words is "five point three," meaning 5 3/10 ("five and three tenths."

Answer:

five dot three which means 5.3 is five dot three

Answer:

£4113.70

Step-by-step explanation:

Given that:

143 people pay ; out of which 38 are under 16 ;

Hence ; 143 - 38 = 105 are over 16

Under 16 = £17.90

£17.90 * 38 = £680.20

16 and Over : = £32.70

£32.70 * 105 = £3433.50

£(680.20 + 3433.50) = £4113.70

Answer:

(C)

Step-by-step explanation:

Bec this is the best way to get

the answer really like I have a lot to do with me and

o get out and you h gf dfgjj ygdf

Answer: 2 2/3 cups of flour

Step-by-step explanation:

Maggie is baking 8 dozen cookies.

8 dozen is equal to 96 cookies as 8×12=96

One recipe is equal to 24 cookies and for each recipe she'll need 2/3 cup of flour.

So you divide 96 by 24 which is equal to 4.

Therefore, you will need 4 recipes worth of flour.

4×2/3=2 2/3

So Maggie would need 2 2/3 cups of flour

Answer:

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiStep-by-step explanation:

Answer:

Step-by-step explanation:

Sample         Nearest 10        nearest hundred        nearest thousand

1                         46590                   46500                     47000

2                        213340                  213300                    213000  

3                        391560                  391600                    392000

The table above is actually the answers. The rule is this:

If you want to round to the 100s place

If you want to round to the 1000s place

Multiply 1/3 and 9, and 1/3 and 12 first. Or divide 9 and 12 by 3, that also works.

3x+4+4x+6

Now combine like terms.

3x+4x=7x

4+6=10

The final expression is 7x+10

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hope it helps

Answer:

(-6, -45)

Step-by-step explanation:

Answer:

y = (x - 6)^2 - 27

Step-by-step explanation:

Answer:

a^3+3a^2b+3a^2c+3ab^2+3ac^2+6abc+b^3+c^3+3bc^2+3b^2c if you want it expand

(a+b+c)(a+b+c)(a+b+c) is equal to (a+b+c)^3

Answer:

It's around 9.22

Step-by-step explanation:

Answer:

[tex]\sqrt{85}[/tex]

Step-by-step explanation:

Distance formula.

(-7, -2) (2, -4)

-7 minus 2, you get -9. Squared is 81.

-2 minus -4 gets you 2. Squared is 4.

Add 81 & 4. You get 85.

Square root 85, there's your answer.

Answer:

187.5 ml

Step-by-step explanation:

Answer:

Since 2=6 is false, there is no solution.

Step-by-step explanation:

Answer:

[tex] \boxed{ \tt{b.}}[/tex]

Step-by-step explanation:

[tex] {2x}^{4} + {2x}^{3} - {x}^{2} - x \\ x({2x}^{3} + {2x}^{2} - x - 1) \\ x({2x}^{2} (x + 1) - 1(x + 1)) \\ {2x}^{3} (x + 1) - x(x + 1) \\ ({2x}^{3} - x)(x + 1)\\ x({2x}^{2} - 1)(x + 1)[/tex]

Answer:

y = 0.1x - 4

Step-by-step explanation:

Given the following data;

Points on the x-axis (x1, x2) = (-3, 7)

Points on the y-axis (y1, y2) = (-7, -6)

First of all, we would find the slope;

Mathematically, slope is given by the formula;

[tex] Slope = \frac{Change \; in \; y \; axis}{Change \; in \; x \; axis} [/tex]

[tex] Slope, m = \frac {y_{2} - y_{1}}{x_{2} - x_{1}} [/tex]

Substituting into the equation, we have;

Slope = (-6 - (-7))/(7 - (-3))

Slope = (-6 + 7)/(7 + 3)

Slope = 1/10

Slope = 0.1

Next, we would write the equation using the formula;

y - y1 = m(x - x1)

y - (-7) = 0.1(x - (-3))

y + 7 = 0.1(x + 3)

y + 7 = 0.1x + 3

y = 0.1x + 3 - 7

y = 0.1x - 4

Answer:

x = [tex]\frac{\pi }{3}[/tex] , [tex]\frac{2\pi }{3}[/tex] , [tex]\frac{4\pi }{3}[/tex] , [tex]\frac{5\pi }{3}[/tex]  

Step-by-step explanation:

sin²x = 3cos²x

[tex]\frac{sin^2 x}{cos^2 x}[/tex] = 3

tan²x = 3, x ∈ [0, 2π)

tan x = √3 , x ∈ [0, 2π)

x = [tex]\frac{\pi }{3}[/tex] , [tex]\frac{2\pi }{3}[/tex] , [tex]\frac{4\pi }{3}[/tex] , [tex]\frac{5\pi }{3}[/tex]

Answer:

A. 35

Step-by-step explanation:

The total amount of movies that the critic rates that we are given is 20. Now they want to figure us to figure it out with 100 movies. 20 times 5 is one hundred. We are supposed to look at the 3 star reviews, which is 7 movies. 7 times 5 is 35. Hope this helps!

Answer:

The answer is option A

Step-by-step explanation:

I have shared a file with the steps if you still can't understand so feel free to contact me through my email. Thanks.

Answer:

no it's different 30% would be 12 and 40% would be 16 if it was going into 30 now mark as brainliest

Answer:

In both cases you are really multiplying the same numbers together.

Step-by-step explanation:

30% of 40 would be 30 x 40 x 0.01 = 12

or 0.30 x 40 = 12

40% of 30 would be 40 x 30 x 0.01 = 12

or 30 x 0.40 = 12

Answer:

c

Step-by-step explanation:

since all the tangent(tan) angles are multiplying,

you factor tan out and multiply the numbers. that's : tan( 23+35+60+67+55)

tan(240)

tan(240) =√3

Answer:

just divide 48 by 120

Step-by-step explanation:

Answer:

Option (4) and (5)

Step-by-step explanation:

Option (1)

f(x) = -(x + 1)² - 4

Since, given function has the vertex = (-1, -4) and the parabola is the opening downwards,

Range of the function → (-∞, -4]

Option (2)

f(x) = [tex]2^{x+3}[/tex]

Horizontal asymptote of the function is,

y = 0

Therefore, range of the given function → (0, ∞)

Option (3)

f(x) = x² + 7x - 9

     = x² + 2(3.5)x + (3.5)² - (3.5)² - 9

     = (x + 3.5)²- 12.25 - 9

     = (x + 3.5)²- 21.25

Vertex of the parabola is (-3.5, -21.25) and parabola is opening upwards.

Therefore, range of the function → [-21.25, ∞)

Option (4)

f(x) = -4x + 11

Range of this function is (-∞, ∞).

Option (5)

f(x) = [tex]\frac{2}{3}x-8[/tex]

Range of the function is (-∞, ∞).

Options (4) and (5) are the correct options.

Answer:

i dont have one but everyone else who does is wrong please fact check yalls answers before you post it please

Step-by-step explanation:

like seriously for the love of god

Answer:

Option 2

Step-by-step explanation:

it easy Add them all up and then you get 47/16 then divide them and convert it to mixed number and then you get 2 15/16

Answer:

2 15/16

Step-by-step explanation:

We need to make sure all fractions have the same denominator.

The LCM (least common denominator) is 16.

Now we have to multiply each nunber except 2 1/16 to get a numerator of 16.

1/2: 1x8= 8, 2x8= 16→ 8/16

3/8: 3x2= 6, 8x2= 16→ 6/16

Now every add everything all up.

8/16 + 6/16 + 2 1/16 = 2 15/16

2 15/16 is our answer.

Answer:

NM = 20

Step-by-step explanation:

Since the triangles are similar, the lengths can be set up in proportions.

So ,

= 6/8 = 15/x

6x = 120

x = 20

NM = 20