please help me i need it i will give brainliest

Answer:

-5

Step-by-step explanation:

f (x) = 4 - x^2

f (-3)= 4 - (-3)^2

= 4 -(9)

= -5

Answer:

-5

Step-by-step explanation:

f(-3) =4-(-3)^2

=4-9

= -5

Answer:

a. 3.4t (miles)

b. 2.125 miles

c. t = 1.6 hours

Step-by-step explanation:

A) We use this relation: Distance = time * speed ( speed or vitesse or rate)

So d= 3.4*t= 3.4t (miles)

B) If t= 5/8

then the distance d= 3.4* 5/8= 2.125 miles.

C) If the distance d= 5.44, we can find the time like:

d= 3.4*t, and we know d=5.44

so 5.44= 3.4*t or t = 5.44/3.4, t= 1.6 hours

Hope you understand it.

Answer:

length = 88 cm

Step-by-step explanation:

Area of a rectangle = width × length

Given:

Substituting these values into the equation:

⇒ 6600 = 75 × length

⇒ length = 6600 ÷ 75 = 88 cm

Length be L

[tex]\\ \rm\rightarrowtail area=6600[/tex]

[tex]\\ \rm\rightarrowtail 75L=6600[/tex]

[tex]\\ \rm\rightarrowtail L=6600/75[/tex]

[tex]\\ \rm\rightarrowtail L=88cm[/tex]

Answer:

[tex]y(x)=-\frac{3}{4}-\frac{1}{2}x-\frac{1}{2}x^2+\frac{2}{3}e^{-2x}+\frac{1}{12}e^x[/tex]

Step-by-step explanation:

[tex]y''+y'-2y=x^2,\: y(0)=0,\: y'(0)=0\\\\\mathcal{L}\{y''\}+\mathcal{L}\{y'\}-2\mathcal{L}\{y\}=\mathcal{L}\{x^2\}\\\\s^2Y(s)-sy(0)-y'(0)+sY(s)-y(0)-2Y(s)=\frac{2}{s^3}\\ \\s^2Y(s)+sY(s)-2Y(s)=\frac{2}{s^3}\\ \\(s^2+s-2)Y(s)=\frac{2}{s^3}\\ \\Y(s)=\frac{2}{s^3(s^2+s-2)}\\ \\Y(s)=\frac{2}{s^3(s+2)(s-1)}[/tex]

Perform the partial fraction decomposition

[tex]\frac{2}{s^3(s+2)(s-1)}=\frac{A}{s}+\frac{B}{s^2}+\frac{C}{s^3}+\frac{D}{s+2}+\frac{E}{s-1}\\\\2=s^2(s+2)(s-1)A+s(s+2)(s-1)B+(s+2)(s-1)C+s^3(s-1)D+s^3(s+2)E\\\\2=s^{4} A + s^{4} D + s^{4} E + s^{3} A + s^{3} B + 2 s^{3} D - s^{3} E - 2 s^{2} A + s^{2} B + s^{2} C - 2 s B + s C - 2 C\\\\2=s^{4} \left(A + D + E\right) + s^{3} \left(A + B + 2 D - E\right) + s^{2} \left(- 2 A + B + C\right) + s \left(- 2 B + C\right) - 2 C[/tex]

Solve for each constant

[tex]\begin{cases} A + D + E = 0\\A + B + 2 D - E = 0\\- 2 A + B + C = 0\\- 2 B + C = 0\\- 2 C = 2 \end{cases}[/tex]

[tex]-2C=2\\C=-1[/tex]

[tex]-2B+C=0\\-2B+(-1)=0\\-2B-1=0\\-2B=1\\B=-\frac{1}{2}[/tex]

[tex]-2A+B+C=0\\-2A+(-\frac{1}{2})+(-1)=0\\-2A-\frac{1}{2}-1=0\\-2A-\frac{3}{2}=0\\-2A=\frac{3}{2}\\ A=-\frac{3}{4}[/tex]

[tex]A+D+E=0\\-\frac{3}{4}+D+E=0\\D+E=\frac{3}{4}\\D=\frac{3}{4}-E[/tex]

[tex]A+B+2D-E=0\\-\frac{3}{4}+(-\frac{1}{2})+2(\frac{3}{4}-E)-E=0\\-\frac{3}{4}-\frac{1}{2}+\frac{3}{2}-2E-E=0\\-\frac{3}{4}+1-3E=0\\\frac{1}{4}-3E=0\\\frac{1}{4}=3E\\\frac{1}{12}=E[/tex]

[tex]D=\frac{3}{4}-E\\D=\frac{3}{4}-\frac{1}{12}\\D=\frac{9}{12}-\frac{1}{12}\\D=\frac{8}{12}\\D=\frac{2}{3}[/tex]

Take the inverse transform and find the solution to the IVP

[tex]Y(s)=\frac{-\frac{3}{4}}{s}+\frac{-\frac{1}{2}}{s^2}+\frac{-1}{s^3}+\frac{\frac{2}{3}}{s+2}+\frac{\frac{1}{12}}{s-1}\\ \\y(x)=-\frac{3}{4}-\frac{1}{2}x-\frac{1}{2}x^2+\frac{2}{3}e^{-2x}+\frac{1}{12}e^x[/tex]

the roots are - 5 ; 9 and - 1

Answer:

511.44 ft^2

966 cm^2

50.88 mm^2

Step-by-step explanation:

6. 196π-13x8=511.44

7. (20+20+12+12)20-100π=966

8. 15x8-1/2(16π)-4x11=50.88

Answer:

(- 21, - 13 )

Step-by-step explanation:

- 3y + x = 18 → (1)

x = 2y + 5 → (2)

substitute x = 2y + 5 into (1)

- 3y + 2y + 5 = 18

- y + 5 = 18 ( subtract 5 from both sides )

- y = 13 ( multiply both sides by - 1 )

y = 13

substitute y = - 13 into (2)

x = 2(- 13) + 5 = - 26 + 5 = - 21

solution is (- 21, - 13 )

Number of distinct products that can be formed is 144

Since we need to multiply two different integers to be selected from the set which contains a total of 12 integers. This is a permutation problem since we require distinct integers.

Now, for the first integer to be selected for the product, since we have 12 integers, it is to be arranged in 1 way. So, the permutation is ¹²P₁ = 12

For the second integer, we also have 12 integers to choose from to be arranged in 1 way. So, the permutation is ¹²P₁  = 12.

So, the number of distinct products that can be formed from these two integers are ¹²P₁ × ¹²P₁ = 12 × 12 = 144

So, the number of distinct products that can be formed is 144

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Answer:

c po

Step-by-step explanation:

kasi between 5 days and 7 days in recovery

The surface area of the globetrotters must work with is 283.4 square inches

The formula for calculating the surface area of a sphere is expressed as:

S = 4πr²

where r is the radius of the sphere

Given that

d = 9.5in

r = 4.75in

Substitute the given parameters into the formula

S = 4π(4.75)²

S = 283.385 square inches

The surface area of the globetrotters must work with is 283.4 square inches

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Answer:

24.775 / 1 or 24775 / 1000

Step-by-step explanation:

To get rid of the decimal point in the numerator, we count the numbers after the decimal in 24.775, and multiply the numerator and denominator by 10 if it is 1 number, 100 if it is 2 numbers, 1000 if it is 3 numbers, and so on.

Therefore, in this case we multiply the numerator and denominator by 1000 to get the following fraction:  

24775/100

Answer:

$6,482.30

Step-by-step explanation:

150 x 40 (hours per week) = $6,000

6,890 x .07 = $482.30

6,000 + 482.30 = $6,482.30

Answer:

78.54 yd squared

Step-by-step explanation:

3.14(2.5^2)4

3.14(6.25)4

(19.625)4

78.54

Have a great day!!

Please rate and mark brainliest!!!

Answer:

10x6

1x5

.1x9

.01x4

.001x9

Step-by-step explanation:

Answer:

m=undefined

Step-by-step explanation:

(x1,y1)=(4,−3)

(x2,y2)=(4,7)

m=y2−y1/x2−x1

=7−−3/4−4

=10/0

=1/0

=undefined

Answer: 2,3,6,7

Step-by-step explanation: I took the test

The statements are true about their balances, is 2,3,6,7 are the correct statement about Rick and Julian balance.

We have given that, Rick put his $200 into a simple interest account at 3.25% interest.

Julian put his $200 into a compound interest account that gives 3% interest compounded annually.

The table below shows their yearly balance after interest has been applied.

The Balance makes personal finance easy to understand. It is home to experts who provide clear, practical advice on managing your money.

Balance   Rick   Julian

deposit    200       200

Year    1 206.50 206.00

Year 2   213.00    212.18

Year 3 219.50   218.55

Year 4   226.00   225.11

Year 5   232.50  231.85

Year 6  239.00   238.81

Year 7  245.50   245.97

Year 8   252.00   253.35

Year 9   258.50   260.95

Year 10   265.00   268.78

We have to determine Which statements are true about their balances.

Statement 2,3,6,7 are true statements about their balances.

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Answer:

112.8

Step-by-step explanation:

to round 112.786 to the nearest tenth consider the hundredths value of 112.786 is 8 and equal or more than 5. Therefore, the tenths value of 112.786 (which is 7) increases by 1 to 8  , so 112.786 rounded to the nearest tenth =112.8

The value of the given expression is 112.8.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

To round 112.786 to the nearest tenth consider the hundredths value of 112.786 is 8 and equal to or more than 5. Therefore, the tenths value of 112.786 (which is 7) increases by 1 to 8, so 112.786 rounded to the nearest tenth =112.8

Therefore the value of the given expression is 112.8.

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Though the box plot is not given, the truth about the data set represented by the box plot is removing the outliers would not affect the median.

A box plot gives a graphical (rectangular) representation of statistical data based on the following five values: minimum, first quartile, median, third quartile, and maximum.

Essentially, a box plot has the following five data descriptions:

Thus, the truth about the data set represented by the box plot is removing the outliers would not affect the median.

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Area of base:-

Now

Volume:-

Answer:

the answer is 54 that person is correct i just took the quiz and got 100% to

Step-by-step explanation:

Answer: 3/8

Step-by-step explanation:

i think it’s 3/8 because I’m also working on this one and it adds up to 3/8 because as you see there is 3 sections. (I’m not good at explaining so I added a photo)

Answer:

3/8

Step-by-step explanation:

me  class  said so

Answer:

500 grams is 20 percent of 2.5 kg

Step-by-step explanation:

500*100 = 50,000

50,000/2500=20

500 g is the 20% of 2.5kg.

The percentage is a ratio of number as a fraction over 100.

According to the given question

we have to find the percentage of 2.5 kg

since, 500g = [tex]\frac{500}{1000}[/tex] = 0.5kg

The percentage of a quantity x is given by

percentage = [tex]\frac{Q}{value}[/tex]×100

Substitute, Q = 0.5kg and value = 2.5kg in the above formula

⇒ percentage = [tex]\frac{0.5}{2.5}[/tex]× 100 = 20%

Hence, 500g is the 20% 0f 2.5g.

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Answer:

P = -6

Step-by-step explanation:

Step 1: Write equation

3P + 6 = -12

Step 2: Solve for P

Step 3: Check

Plug in P to verify it's a solution.

3(-6) + 6 = -12

-18 + 6 = -12

-12 = -12

Answer:

204.95

Step-by-step explanation:

42.75x4=171

171+52.45=223.45

223.45-18.5=204.95

Step-by-step explanation:

Dan made an error in step 2 he added the 18.50 instead of subtracting. it should be 171+52.45= 223.45  223.45-18.50 = 204.95

Answer:

3

Step-by-step explanation:

3 because their is a rule which states: 1-4 stay on the floor 5-9 climb up the vine this means if it is 4 or less than round down and if it is 5 or more round up

Answer:

B

Step-by-step explanation:

Reflects over x axis then translates down and left.

Answer:

540

Step-by-step explanation:

10% of 600 is 60, 600-60 is 540

The 10% of $600 will be $60 therefore, the net salary that Mr. Smith will take home will be $540.

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Base salary = $600

10% of $600 = (10/100) x 600 = $60

Net salary = $600 - $60 = $540

Hence "The 10% of $600 will be $60 therefore, the net salary that Mr. Smith will take home will be $540.".

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