Subtract
12u+7v from 20u+13v

Answer:

(A) it's just a guess but its the only answer that fits with the question

Step-by-step explanation:

Solve for c :

x⁴ + cx² + 100 = 0

cx² = -(x⁴ + 100)

c = - (x⁴ + 100)/x²

If x = 0, the right side is undefined and c would have no solution.

Answer:

27 quarters and 37 nickels

Step-by-step explanation:

Nickels are 5¢

Quarters are 25¢

$8.60 is 172 nickels (860/5)

$8.60 is 34.4 quarters (860/25)

So then let's split it half-and-half.

425 and 435

425 would become 17 quarters.

435 would become 87 nickels.

This is still too much.

Now let's try 700 and 160.

700 would become 28 quarters

160 would become 32 nickels.

28+32=60.

This is a lot closer.

So now 27 quarters and 37 nickels. This works.

Answer:

the answer is B

Step-by-step explanation:

Hope this helps

Answer:

d

Step-by-step explanation:

i think that's right

Answer:

5 is B. corresponding

Step-by-step explanation:

hope this helps

Answer:

5 - B Corresponding angles

6 - a = 100°

Step-by-step explanation:

5 - Literally the definition of corresponding angles

6 - These angles add up to 360° so 360-(105+95+60)=360-260=100°

Answer:

2.7t5r

Step-by-step explanation:

Answer:

2 + 2 = 4

y tho

Step-by-step explanation:

Step-by-step explanation:

radius of a circle=7.5 cm

now,

circumference of a circle=2[tex]\pi[/tex]r

                                          =2*3.14*7.5

                                          =47.1 cm

Answer:

does it have a picture

Step-by-step explanation:

Answer:

$448

Step-by-step explanation:

This can be solved simply by using multiplication:

28 (chairs) x 16 (dollars per each chair) = 448 (dollars total)

Hope it helps! :)

Answer:

x= 2x+3

Step-by-step explanation:

delta= postif

x1= -b - racine de Delta sur A AU CARRE

x2= -b + racine de delta A AU CARRE

[tex]slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ h(x)= -x^2+3x+8 \qquad \begin{cases} x_1=1\\ x_2=6 \end{cases}\implies \cfrac{h(6)-h(1)}{6-1} \\\\\\ \cfrac{[-(6)^2+3(6)+8]~~ -~~[-(1)^2+3(1)+8]}{5}\implies \cfrac{-10~~ - ~~(10)}{5} \\\\\\ \cfrac{-20}{5}\implies -4[/tex]

Answer:

  any value less than 10

Step-by-step explanation:

Let x represent the number.

  1.5x < |20 -5|

  1.5x < 15 . . . . simplify

  x < 10 . . . . . . divide by 1.5

The number may be any value less than 10.

Answer:

k=37

Step-by-step explanation:

If we plug in 2 for t, which it tells us is the input, then the output of the problem will be 37

k=13t-2

Plug in the value for t.

k=13(2)-2

k=39-2

k=37

The half-life of the element is 13 minutes, which means after 13 minutes, any starting amount decays to half. So element X decays with a rate k such that

[tex]\dfrac12 = e^{13k}[/tex]

Solve for k :

[tex]\ln\left(\dfrac12\right) = \ln\left(e^{13k}\right)[/tex]

[tex]-\ln(2) = 13k \ln(e)[/tex]

[tex]-\ln(2) = 13k[/tex]

[tex]\implies k = -\dfrac{\ln(2)}{13}[/tex]

Now, we solve for t such that

[tex]36 = 710e^{kt}[/tex]

[tex]e^{kt} = \dfrac{18}{355}[/tex]

[tex]\ln\left(e^{kt}\right) = \ln\left(\dfrac{18}{355}\right)[/tex]

[tex]kt = \ln\left(\dfrac{18}{355}\right)[/tex]

[tex]-\dfrac{\ln(2)}{13} t = \ln\left(\dfrac{18}{355}\right)[/tex]

[tex]\implies t = -\dfrac{13 \ln\left(\frac{18}{355}\right)}{\ln(2)}[/tex]

[tex]\implies t = -13 \log_2\left(\dfrac{18}{355}\right) \approx \boxed{55.9}[/tex]

Answer:

2781271 x 89 = 247,533,119

Step-by-step explanation:

hope this helps

Answer:

247533119

hopes this helps

Answer:

cost for each hour her car was parked in garage =  $3

Step-by-step explanation:

Let the cost every hour car parked in garage be x.

4x + $77.50 =  $89.50 ......4* x because the car had been 4 hours in garage.

4x = $89.50 - $77.50

4x = $12

x =  $12 / 4

x =  $3

Answer:

[tex]5x - 6 = 3x + 4 \\ 5x - 3x = 4 + 6 \\ 2x = 10 \\ x = 10 \div2 \\ x = 5 \\ length \: of \: xy = 3 \times 5 + 4 \\ = 15 + 4 \\ = 19[/tex]

Answer: 19

Step-by-step explanation:

From the properties of the kite, we know that line segment XY is congruent to line segment ZY. Keep in mind, the variable we need to solve for this question is x!

From this, we can say that;

3x+4=5x-6

Plus 6 on both sides to get

3x+10=5x

Minus 3x on both sides to get

10=2x

divide both sides by 2 to get

5=x

now plug the x value 5, into the equation XY

3 times 5 + 4

multiplication goes first!

15+4=19

Answer:

[tex]y=\frac{6}{5}x+3[/tex]   and    [tex]y=-\frac{2}{5} x-5[/tex]

Step-by-step explanation:

To find the slope (gradient) of a line, choose 2 points on the line and put their coordinates into the formula:  [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

where [tex]m[/tex] is the slope and [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] are the 2 points.

The y-intercept is the y-coordinate of the point where the line crosses the y-axis.

The question has given you one point that both lines pass through: (-5, -3)

You also need to determine the points where both lines cross the y-axis to determine their y-intercepts - use those as the second points.

From inspection, for the upper line this is (0, 3) and for the other line this is (0, -5)

Therefore, the slope of the upper line is: [tex]m=\frac{3--3}{0--5}=\frac{3+3}{0+5} =\frac{6}{5}[/tex]

This line crosses the y-axis (0, 3) so its y-intercept is 3

Therefore, the equation is [tex]y=\frac{6}{5}x+3[/tex]

The slope of the lower line is: [tex]m=\frac{-5--3}{0--5}=\frac{-5+3}{0+5} =\frac{-2}{5}[/tex]

This line crosses the y-axis (0, -5) so its y-intercept is -5

Therefore, the equation is [tex]y=-\frac{2}{5} x-5[/tex]

#1

Slope

Equation

#2

Slope

Equation

[tex]75/10=7.5\\75/100=0.75\\75/1000=0.075[/tex]

Step-by-step explanation:

Hope it will help you

Answer:

C) As x approaches positive infinity, f(x) approaches positive infinity

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

7x+3

Step-by-step explanation:

Answer:

7x + 3

Step-by-step explanation:

Combine like terms. Like terms are terms that have the same amount of the same variable. In this case, add 5x with 2x:

5x + 2x + 3

(5x + 2x) + 3

7x + 3

7x + 3 is your answer.

~

Answer:

36

Step-by-step explanation:

18 / 2 = 9
9 x 4 = 36

Answer:

thirty six. math problems

Answer:

6.25 Years

Step-by-step explanation:

First, find 8% of 40,000 which is 3,200 which represents how much the initial amount increases per year.

Next, find out how much you need to increase by subtracting 40,000 from 60,000 which means you need 20,000 more dollars.

Next, divide how much money you need by how much it increases to see how many years it will take.

20,000 divided by 3,200 is 6.25

Answer:

c = 24

Step-by-step explanation:

8*3=c

Step-by-step explanation:

sol;

x+1=y...(1)

3y-7=2x....(2)

or, 3(x+1)-72x [from (1)]

or, 3x+3-7=2x

or, 3x-2x=7-3

     x=4

now,

putting the value of x in (1)

y=x+1

 =4+1

 =5

PR and SQ are the diagonal of PQRS.

Answer:

Which two expressions?

Step-by-step explanation: