let F(x) = x^2 + ax + b when a and b are integers, if F(3+root5) = 0 then what is value of F(4) ?​

Answer:

( 7 , 7 )

Step-by-step explanation:

Translation:

( 2 , - 3 ) ------> ( 2 + 5 , - 3 - 4 ) = ( 7 , - 7 )

Reflection:

( 7 , - 7 ) ------> ( 7 , - ( - 7 ) ) = ( 7 , 7 )

Answer:

113.4 points.

Explanation:

Use the Percent Equation to solve this answer.

378(100%-70%) = ?

378(30%) = ?

113.4

23° sería te sirve dime qué si ☜ (↼_↼)

Answer:

im pretty sure its 30

Step-by-step explanation:

Answer:

$2,786.83

Step-by-step explanation:

[tex]p {e}^{.09 \times 11} = 7500[/tex]

[tex]p = \frac{7500}{ {e}^{.09 \times 11} } [/tex]

[tex]p = 2786.83[/tex]

Answer:

Step-by-step explanation:

Hope it helps!!

Answer:

19 inches is 48.26 and 39 hours is 2340 so 2340/48.26=48.427

Step-by-step explanation:

Answer:

No, it doesn't

Step-by-step explanation:

2+5=7

The two smaller lengths of a triangle cannot be equal to or less than the third side.

The total amount of interest will Ward save if he finances car the $20,000 for 3 years rather than 5 years is $1000.

Simple interest is the amount charged on the principal amount with a fixed rate of interest for a time period. Simple interest calculated only on the principal amount.

The formula for the simple interest can be given as,

[tex]I=\dfrac{Prt}{100}[/tex]

Here, (I) is the interest amount earned on the principal amount of (P) with the rate of (r) in the time period of (t).

Ward finances $20,000 to purchase a car. The rate of interest is 2.5% regardless of loan length. The interest amount of the car for three years is,

[tex]I_3=\dfrac{20000\times2.5\times3}{100}\\I_3=1500[/tex]

The interest amount of the car for five years is,

[tex]I_3=\dfrac{20000\times2.5\times5}{100}\\I_3=2500[/tex]

The amount of interest Ward save,

[tex]C=2500-1500\\C=1000[/tex]

Thus, the total amount of interest will Ward save if he finances car the $20,000 for 3 years rather than 5 years is $1000.

Learn more about the simple interest here;

https://brainly.com/question/2294792

Answer:

It would be $31.35

Step-by-step explanation:

Just add the hours together except the time he took for lunch. Then times that by how much money he makes per hour.

Answer:

Step-by-step explanation: Hi there.

First, add up the number of hours he worked (do not include lunch hours): 3.8+4.4=8.2

Then multiply those hours by how much he gets paid: 5.50*8.2=45.1

So the worker was paid $45.10.

Have a nice day! :)

Answer:

Square both sides.

When you do this the square root sign will be eliminated and u will be able to solve. So it will become just x2 + x - 2 and the left hand side you will need to do foil method and use distributive law

Answer:

$240

Step-by-step explanation:

30/100×800

=30×8

=$240

Therefore, The cost of mobile phone is $240.

(would appreciate it if you could mark me the brainliest :))

Answer:

He would pay less at the garden store.

Step-by-step explanation:

We have to find the unit prices of both shrubs.

The unit price is the cost per unit, and to find the unit price, divide the price by the number of units. 

72/6 = 12

77/7 = 11

He would pay less at the garden store because the unit price is lower than the nursery.

[C] [tex]2^4[/tex]

Step-by-step explanation:

I think each answer choice are;

[A] [tex]2^2[/tex]  

[B] [tex]4^4[/tex]

[C] [tex]2^4[/tex]

[D] [tex]8^2[/tex]

[E] [tex]2^8[/tex]

Now we have to solve each by multiply:

[A] [tex]2^2[/tex]              {2*2 = 4}

[B] [tex]4^4[/tex]             {4*4*4*4=256}

[C] [tex]2^4[/tex]            {2*2*2*2=16}

[D] [tex]8^2[/tex]            {8*8=64}

[E] [tex]2^8[/tex]           {2*2*2*2*2*2*2*2=256}

Hence, the correct answer is [C] [tex]2^4[/tex]

[RevyBreeze]

Answer: 1001

Step-by-step explanation:

1) you would do 700x43% and that would = 301

2) then you add 301 to 700, 301+700=1001 cars

Answer:

True

…………………………………………

Answer:

Step-by-step explanation:

true

Answer:

45

Step-by-step explanation:

These work problems are always done in terms of fractions ie if both (Kevin & Eric) took 30mins to mow and Kevin took 1.5hrs (90mins) alone then we can make an equation like below

1/time took for both = 1/time took for Kevin + 1/time took for Eric

1/30 = 1/90+1/x    ==> calling time took for Kevin x

solving the above 1/x = 1/30-1/90

1/x=2/90

x=45

Given that Kevin takes 1.5 hours to mow the lawn alone and together

with Eric it takes 30 minutes The time it takes Eric alone is 45 minutes.

The time it takes Kevin to mow the lawn, K = 1.5 hours

The time it takes Kevin and Eric to mow the lawn, B = 30 minutes = 0.5 hours

Required:

The time it takes Eric to mow the lawn alone.

Solution:

Let K represent the time it takes Kevin to mow the lawn alone and let E

represent the time it takes Eric to mow the lawn alone, we have;

[tex]\mathbf{\dfrac{1}{K} + \dfrac{1}{E} }= \dfrac{1}{T}[/tex]

Which gives;

[tex]\dfrac{1}{1.5} + \dfrac{1}{E} = \dfrac{1}{0.5}[/tex]

Which gives;

[tex]\dfrac{1}{E} = \dfrac{1}{0.5} - \dfrac{1}{1.5} =\dfrac{4}{3}[/tex]

Therefore;

[tex]E = \dfrac{1}{\dfrac{4}{3} } = \dfrac{3}{4} = \mathbf{ 0.75}[/tex]

The time it takes Eric to mow the lawn alone, E = 0.75 hours

0.75 hours = 0.75 × 60 minutes = 45 minutes

The time it takes Eric to mow the lawn alone, E = 45 minutes

Learn more about proportions here:

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Solution:

Note that:

Simplify the equation to find x.

Sum of angles=180

[tex]\\ \rm\bull\rightarrowtail 5x+7+4x+16+5x+17=180[/tex]

[tex]\\ \rm\bull\rightarrowtail 14x+40=180[/tex]

[tex]\\ \rm\bull\rightarrowtail 14x=140[/tex]

[tex]\\ \rm\bull\rightarrowtail x=10[/tex]

Answer:

87

Step-by-step explanation:

9 2/3 = 9/9 + 9/9 + 9/9 + 9/9 + 9/9 + 9/9 + 9/9 + 9/9 + 9/9 + 6/9 = 87/9

Answer: 87 ninths

Step-by-step explanation:

See how many 1/9ths fit inside 9 2/3 using division

[tex]9\:\frac{2}{3}\div \frac{1}{9}[/tex] or

[tex]\frac{29}{3}\div \frac{1}{9}[/tex]

[tex]=\frac{29}{3}\times \frac{9}{1}[/tex]

[tex]= \frac{87}{1}[/tex]

[tex]=87[/tex]

Test to see if 1/9 goes into 9 2/3 87 times

87 * 1/9

[tex]= \frac{87}{9}[/tex]

[tex]=\frac{29}{3}[/tex]

29/3 as a mixed fraction is 9 2/3. So therefore, there are 87 ninths in 9 2/3

Area of the circle is the area covered by that circle. The area of the circle whose circumference is 7π m is 12.25π m².

The area of the circle is the area covered by that circle. It is given by the formula,

[tex]\text{Area of the circle}=\pi r^2[/tex]

where r is the radius of the circle.

As it is given that the circumference of a circle is 7π m. Therefore, the radius of the circle can be written as,

[tex]\text{Circumference of the circle} = 2\pi r[/tex]

[tex]7 \pi = 2 \pi r\\\\r = 3.5\rm\ m[/tex]

Now, we know the formula of the area of a circle, therefore, the area of the circle can be written as,

[tex]\text{Area of the circle}=\pi r^2[/tex]

                           [tex]= \pi \times (3.5)^2\\\\= 12.25\pi\rm \ m[/tex]

Hence, the area of the circle whose circumference is 7π m is 12.25π m².

Learn more about Area of Circle:

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Answer:

[tex]x=-1[/tex]

Step-by-step explanation:

The equation for slope is:

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

In this case, x would represent, [tex]y_2[/tex]. Therefore...

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\1=\frac{x-(-8)}{5-(-2)}\\1=\frac{x+8}{5+2}\\1=\frac{x+8}{7}\\\\Multiply\ 7\ to\ both\ sides\\\\7=x+8\\\\\ Subtract\ 8\ from\ both\ sides\\\\x=-1[/tex]

Answer:

706.5

Step-by-step explanation:

Answer:

706.5

Step-by-step explanation:

Diameter = 30

30/2 = 15. 15 is the radius

To find area:

3.14 x 15 x 15 = 706.5

706.5 is the answer

Answer:

2250 hours of 300 computers used in average(mean) in a week

Step-by-step explanation:

300 * 7.5 hours(average hours) = 2250 hours

how to find mean or average of any amount of numbers ?

Basiccaly just add all numbers and then divide it by the numbers you added

example: The mean of 5-10 hours would be

                5 + 10 = 15

                15/2 = 7.5

Answer:

18.75

Step-by-step explanation:

got this from calculator so might be wrong

u add 25 percent to 15

Answer:

It's option d (Line Segment TS)

Please mark as brainliest

Answer:

Line TS

Step-by-step explanation:

Answer:

For this problem, we can assume that we deposits X money at 4.5% interest, than we can know that 2X were deposited at 5% interest, therefore we can get the equation of:  4.5%*X+5%*2X=2755, than we can get X=19000, so the 2X=38000, than we can concluded that: she deposited $19000 at 4.5% and $38000 at 5%.

Step-by-step explanation: