Please help me with this Question

Answer:

k = 4

Step-by-step explanation:

if f(x) is divided by (x - h) then f(h) is the remainder

f(x) = 2x³ - 3x² + kx - 1

divided by (x - 1) , so h = 1 , then

2(1)³ - 3(1)² + k(1) - 1 = 2

2 - 3 + k - 1 = 2

- 2 + k = 2 ( add 2 to both sides )

k = 4

Step-by-step explanation:

1.2

area of triangle = ½ × base × height

so,

height = 5cm

base = 4cm

now,

→ 1/2 × 4 × 5

→ 2 × 5 = 10 cm²

therefore, area of the ∆AED is 10cm².

1.3

area of rectangle = l × b

length = 8cm

breadth/width = 5cm

now,

area of BCDE

→ 8 × 5 = 40 cm²

now,

area of,

→ ABCD = BCDE - ∆AED

→ ABCD = 40 - 10 = 30

therefore, required area of ABCD is 30cm².

hope this answer helps you dear...take care and may u have a great day ahead!

Answer:

44.44 mph

Step-by-step explanation:

Since we are given 50 from the start, and 40 at the end, we will add 50 and 40.

50 + 40 = 90

Then, Divide the result by 2.

90 ÷ 2 = 45

Here is the tricky part: we are not done!

Don't be mistaken by the question. Some people may think the answer is 45mph because that is what it is rounded up, however, the question did not ask for the answer rounded up.

This is a round trip, so reduce this to the nearest value in both tenths and units. Hence, it would be 44.44.

Answer:

Step-by-step explanation:

Though we can divide this second equation by five and combine, let's multiply the first equation by five and subtract it from the second...

10d + 5n = 210

-(5d + 5n = 150)

and we get

5d = 60

d = 12 dimes

n = 30-12 = 18 nickels

Answer:

m>8

Step-by-step explanation:

The first step will be to distribute the 2, so that the equation becomes 2m + 6 + 1 > 23.

From here we should combine like terms, which just means adding 6 and 1, so that the equation is now 2m+7>23. Now, we just subtract 7 on both sides, which brings leave us with 2m > 16.

Lastly dividing by 2 on both sides, the answer is m>8

Answer:

3/4

Step-by-step explanation:

please mark me as brainlest

Answer:

106

Explanation:

3a+b2

Substitute the values for the variables:

3(14) + 2(32)

Solve:

3(14) + 2(32)

42 + 64

106

9/8 trust me +_+ X_X C_C V_V N_N

Answer:

4.6 miles

Step-by-step explanation:

Subtract the distance of the library to the store from the store to the school.

12-7.4=4.6

Answer:

(-3.5,0)

Step-by-step explanation:

[tex](\frac{x1+x2}{2}, \frac{y1+y2}{2})\\\\= (\frac{-6-1}{2}, \frac{-3+3}{2})\\\\= (-3.5, 0)[/tex]

Feel free to mark this as brainliest! :D

Answer:

add them all up then divide by how much numbers you added together

Step-by-step explanation:

I would give you exact answer but since it's a test you need to do work, I'll just tell you how to do it tho

79.6 is the mean of given set of scores calculated by adding all the given scores and dividing it by number of scores which is 10.

To find the mean (average) of a set of scores, you need to add up all the values and then divide by the total number of values.

Let's calculate the mean of the math test scores you provided:

Math test scores: 92, 52, 80, 54, 75, 62, 78, 78, 95, 80

Add up all the scores:

92 + 52 + 80 + 54 + 75 + 62 + 78 + 78 + 95 + 80

= 796

Find the total number of scores:

There are 10 scores in the set.

Calculate the mean:

Mean = Sum of scores / Total number of scores

Mean = 796 / 10

Mean = 79.6

So, the mean of the math test scores is 79.6.

To learn more on Statistics click:

https://brainly.com/question/30218856

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Answer:

$8553.87

Step-by-step explanation:

Formula = Initial amount x (1+(%/100) squared by (t) years or time.

7600 x 1.03^4 =8553.86696 = $8553.87 nearest penny rounded up.

To reverse such amount if given percentage (%) time (t) and (nv) new value to question. We realise it has asked the opposite in asking to find the initial investment it may say what Did Dan initially or originally invest? we would divide new amount by (1+) (%/100)^(t) and percentage and show like this;

8553.87 / 1.03^4= 7600.0027  = $7200 for initial investment.

However the question asks for total new value of investment after 4 years.

So the first formula is shown and shows answer to be  $8553.87

Answer:

I honestly dont know

Step-by-step explanation:

sorry I couldnt help

Answer:

To find the slope of a line, simply use the slope formula [(y2-y2)/(x2-x1)].

To find the y-intercept, simply plug in point values to solve for b.

The line that passes through the two points (1, 5/2) and (-1/2,-1/4) is y=1.8x+0.7.

The given coordinate points are (1, 5/2) and (-1/2,-1/4).

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The formula to find the slope of a line is slope = (y2-y1)/(x2-x1)

Substitute (x1, y1)=(1, 5/2)=(1, 2.5) and (x2, y2)=(-1/2, -1/4)=(-0.5, -0.25) in slope formula, we get

Slope =(-0.25-2.5)/(-0.5-1)

= -2.75/(-1.5)

= 1.8

Put m=1.8 and (x, y)=(1, 2.5) in y=mx+c, we get

2.5=1.8×1+c

c=0.7

So, equation is y=1.8x+0.7

Hence, the line that passes through the two points (1, 5/2) and (-1/2,-1/4) is y=1.8x+0.7.

To learn more about the slope of a line visit:

https://brainly.com/question/14511992.

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Answer:

Step-by-step explanation:

a²+b²=c²

10²+12²=c²

100+144=c²

[tex]\sqrt{244} =\sqrt{c^2} \\\sqrt{4} \sqrt{61}=c\\2\sqrt{61}=c[/tex]

_______

[tex] \: [/tex]

x² = 12² + 10²

x² = 144 + 100

x² = 244

x = √244

x ≈ 2√61m

Answer:

1111111.11 is the answer.....

no question to answer

Step-by-step explanation:

Answer:

The answer is D $3.35

Step-by-step explanation:

[tex]2.35 + .25x = 1.75 + .40x \\ 2.35 = 1.75 + .40x - .25x \\ 2.35 = 1.75 + .15x \\ 2.35 - 1.75 = .15x \\ .60 = .15x \\ \frac{.60}{.15} = x \\ x = 4[/tex]

[tex]2.35 + .25(4) = 2.35 + 1 = 3.35[/tex]

Answer:

∵ ABC is an isosceles  triangle

∵ m∠b = m∠c

∴ m∠b and m∠c = 180 - m∠a/2

= 180 - 50/2

= 130 /2

= 65°

∵ ∠c and ∠AMI are corresponding angles

∵ m∠AMl = m∠c = 65°  (1)

From (1)

∵ ∠AMC is striaght angle

∴ m∠IMC = 180 - m∠AMI

m∠IMC = 180 - 65

m∠IMC = 115°

Answer = 115°

Figure of your question in the attachment

Answer:

So Y always the double of x if x is 1 then y is 2 if x is 5 then y is 10 so the equation y=2x

Y= 2x

Answer:

y = 9/2x + 5

Step-by-step explanation:

ok first find the slope with equation (x2 - x1 over y2 - y1)

14 - 5 = 9/

2 - 0 2

so 9/2 is your slope so now pick one of the points (let's do 0, 5) and plug that into the slope intercept form (y = mx+b)

5 = 9/2(0)+b

9/2 • 0 = 0 so b = 5

so the answer is y = 9/2x + 5. hope this helps!

Answer: True, False, False, True, False

Step-by-step explanation: Fractions are easy.

Answer:

5.56. I think that is the answer

Answer: 4.93

Step-by-step explanation:

Its mental math

Answer:

4 3/8

Step-by-step explanation:

brainliest pls?

Answer:

C or the third one

Step-by-step explanation:

Answer:

D.Saturday 8:40am

Step-by-step explanation:

11+8=19 (7)

45+55=100

one hour(100) makes 60 minutes

100-60=40

Therefore the answer is Saturday 8:40am

Answer:

[tex]\frac{1}{9}[/tex]

Step-by-step explanation:

Note the bar above 1 means 1 is repeating , that is

0.111..

We require 2 equations with the repeating digit placed after the decimal point

let x = 0.111.... (1) Multiply both sides by 10

10x = 1.111... (2)

Subtract (1) from (2) thus eliminating the repeating digit

9x = 1 ( divide both sides by 9 )

x = [tex]\frac{1}{9}[/tex]

Answer:

that was the great answer its 1/10

Answer:

77777

Step-by-step explanation:

In this case, the vertex is the lowest point of the V shaped curve.

The goal is to get the stuff inside the absolute value (the 2x-5) to be as small as possible, so we can get to the lowest point. In terms of absolute value, we want the 2x-5 to be equal to 0

This allows us to set up the equation below and solve for x.

2x-5 = 0

2x = 5

x = 5/2

x = (4+1)/2

x = 4/2 + 1/2

x = 2 + 1/2

x = 2 & 1/2

Let me know if this clears things up or not.

Answer:

A. y= 1x + 5

Step-by-step explanation:

Answer:

A. y=x+5

Step-by-step explanation:

(0,5):

x=0

y=(0)+5=5

(3,8):

x=3

y=(3)+5=8

I hope this help you

Answer:

m=3n/4

Step-by-step explanation:

4m+2n=5n subtract 2n from both sides

4m= 5n-2n combine like terms

4m=3n divide by 4

m=3n/4

brainliest plz <3