Diego thinks that x = 3 is a solution to the equation x² = 16. Do you agree?
Explain or show your reasoning.
Yes, he is correct.
No, he is incorrect. The answer should be 6.
No, he is incorrect. The answer should be 9.
None of the above

Answer:

one half

Step-by-step explanation:

Given the expression

2/6 + 1/6

Find the LCM

[tex]= \dfrac{2+1}{6} \\= \dfrac{3}{6} \\= \dfrac{3*1}{3*2}\\= \dfrac{3}{3} * \dfrac{1}{2} \\= 1 * \dfrac{1}{2}\\= \dfrac{1}{2}[/tex]

Hence the required result is one half

Answer:

3 hours and 55 minutes

Step-by-step explanation:

Answer:

17 nickles !

Step-by-step explanation:

First, identify the variables:

n = amount of nickels

d = amount of dimes

Next, setup the equations based on what you know.  The first equation is:

n + d = 28

For the second equation, we know that a dime is worth 10¢ and a nickel is 5¢, so it should be:

0.05n + 0.10d = 1.95

This a three-step answer:

In one formula (you can use any of them; most people use the simplest one), single out the variable on one side

Apply the first formula into the second formula, and solve it to get the value of one variable

Apply the answer from the second formula into the first formula, and solve it to get the value of the other variable

======

Step One:

n + d = 28

n + d - d = 28 - d

n = 28 - d

Step Two:

0.05n + 0.10d = 1.95

(0.05 * (28 - d)) + 0.10d = 1.95

1.40 - 0.05d + 0.10d = 1.95

1.40 + 0.05d = 1.95

1.40 - 1.40 + 0.05d = 1.95 - 1.40

0.05d = 0.55

d = 11

Step Three:

n = 28 - d

n = 28 - 11

n = 17

======

Your answer should be 17 nickels and 11 dimes.

You can double check by applying the variables into both formulas.

n + d = 28

17 + 11 = 28

28 = 28

0.05n + 0.10d = 1.95

(0.05 * 17) + (0.10 * 11) = 1.95

0.85 + 1.10 = 1.95

1.95 = 1.95

I hope this helped.

Answer:

the answer would be B: l = 2x + 3; w = x - 1

Answer:

6x + 6

Step-by-step explanation:

Perimeter is the total measurement of all the sides

16x + 12 = (6x + 14) + (4x - 8) + (?)

16x + 12 = 10x + 6 + ?

6x + 6 = ?

Answer:

5x-2

Step-by-step explanation:

(3x)+(x+2)+(x-4)= 5x-2

Answer:

[tex]15.32[/tex]

Step-by-step explanation:

Eleven and seven-hundredths [tex]=11+\frac{7}{100}[/tex]

(Here, [tex]\frac{1}{100}[/tex] denotes the hundredth)

Four and twenty-five hundredth [tex]=4+\frac{25}{100}[/tex]

Therefore,

Sum of Eleven and seven-hundredths added to four and twenty-five hundredth = [tex]11+\frac{7}{100}+4+\frac{25}{100}[/tex]

[tex]=15+\frac{32}{100}[/tex]

[tex]=15+0.32[/tex]

[tex]=15.32[/tex]

Answer:

42°

Step-by-step explanation:

It is always good to draw a picture to help you.  In this case

tan F = 40/44

m∠F = arctan (40/44) = 42°

Answer:

$1057.3

Step-by-step explanation:

First we'll find the Interest no. 1, which is simple interest, assuming the time 1 year:

S.I= PRT/100

S.I= 780*5.2*1/100

S.I=$40.56

Now we'll find interest no.2, which is compound interest, time is 6 years, Principal amount (780) will remain the same as well as the rate thus (putting in the formula of compound interest- annual- [tex]A=P(1+\frac{R}{100} )^t[/tex]):

[tex]A= 780(1+\frac{5.2}{100})^6[/tex]

A= $1057.3

Answer: 120960 ft.

Step-by-step explanation:

Answer:

Step-by-step explanation:

A ton is 2000 lbs   ->    w = 2000

Weight in an elevator must be less than 2000   ->  w<2000

The pool must hold atleast 2000 lbs w >= 2000   (>=  is greater than equal to)

The scale......   ->   w<= 2000

My car weighs more than 2000    ->  w > 2000

Answer:

1.w<2000

2.w=2000

3.w> or =2000

4.w< or =2000

5.w>2000

Step-by-step explanation:

Answer:

$75.14

Step-by-step explanation:

The new value of one share of LMNOP stock after 11.6% increment is $75.14

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

[tex]\dfrac{a}{100} \times b[/tex]

For this case, we are given that:

Now, the 11.6% of initial price is:

[tex]\dfrac{85}{100} \times 11.6 = \$9.86[/tex]

Thus, the final price of the stock in December =  $85 - $9.86 = $75.14

Learn more about percent here:

https://brainly.com/question/11549320

Answer:

The Answer Is E!

Step-by-step explanation:

To solve this equation., you have to try every solution and the only one that perfectly completes both statements is answer E.

We subtract the $1.15 from $2.10 if this is the price of one taco, leaving the price of a small cup of coffees price     ($2.10-$1.15=$0.95 for a small cup of coffee

To check it fits both statements, we multiply the price of one coffee  by 3 ()$0.95×3=$2.85 for three small coffees\

Next, we multiply $1.15 (one taco) by 2 to fill in the expression  ($1.15×2=$2.30)

Finally, we add both the prices of the 3 coffees and two tacos which adds up to a perfect $5.15, justifying the answer

Answer:

[tex]Perimeter =58[/tex]

Step-by-step explanation:

Given

[tex]AB = 24[/tex]

See attachment

Required

The perimeter of ABC

First, calculate the lengths of AC and BC.

From the attachment.

[tex]Ax = Az =10[/tex]

[tex]Cx = Cy = 5[/tex]

[tex]By =Bz[/tex]

So, we have:

[tex]AC = 10 + Cx[/tex]

[tex]AC = 10 + 5[/tex]

[tex]AC = 15[/tex]

Also:

[tex]Az + Bz = AB[/tex]

[tex]Az + Bz = 24[/tex]

Recall that: [tex]Ax = Az =10[/tex]

So:

[tex]10 + Bz = 24[/tex]

[tex]Bz = 24 - 10[/tex]

[tex]Bz = 14[/tex]

So, we have:

[tex]By = Bz = 14[/tex]

To calculate BC, we have:

[tex]BC = 5 + By[/tex]

[tex]BC=5+14[/tex]

[tex]BC = 19[/tex]

The perimeter is then calculated as:

[tex]Perimeter = AB + BC + AC[/tex]

[tex]Perimeter = 24 + 19 + 15[/tex]

[tex]Perimeter = 58[/tex]

Answer:

Answer of this question is 8km

Answer:

a) 14.14 feet

b) 260.5 square feet

Step-by-step explanation:

A square has an area of 200 square feet.

a) How long is each side in simplest radical form?

Area of a square = (side length)²

Side length = √Area

Side length = √200 square feet

= 14.142135624 feet

≈ 14.14 feet

b) If I increase the length of each side by 2, what is the new area in simplest radical form?

= 14.14 feet + 2

= 16.14 feet

New area = (16.14 feet)²

= 260.4996 square feet

Approximately = 260.5 square feet

Answer:

x = 49

Step-by-step explanation:

AD is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides , that is

[tex]\frac{28}{x}[/tex] = [tex]\frac{8}{14}[/tex] ( cross- multiply )

8x = 392 ( divide both sides by 8 )

x = 49

Answer:

Step-by-step explanation:

[tex]f(x)=/x+1/-/x-2/\\a=/x+1/-/x-2/\\\text{square both sides}\\a^{2}={(x+1)}^{2}+{(x-2)}^{2}-2(x+1)(x-2)\\a^{2}=x^{2}+2x+1+x^{2}-4x+4-2x^{2}+2x+4\\a^{2}=9\\a=\sqrt{9}\\a=+3\text{ or }-3[/tex]

[tex]\text{if }a \in \{-3, 3\},\text{the number of solutions is 2}[/tex]

[tex]\text{if }a \in \{-\infty, -3\}\bigcup\{\infty, 3\},\text{it is just like saying from infinity to infinity, which is still 2}[/tex]

Answer:

a=(x+1)-(x-2)

=x-x+1+2

a=3

Answer:

2.5 mi/min => 2.5 mi in 1 minute

Step-by-step explanation:

The unit rate (speed) is

12.5 mi

------------- = 2.5 mi/min

5 min

Answer:

center: (1,4)

radius=3

Answer:

8

Step-by-step explanation:

can i have brainliest

Answer:

D

Step-by-step explanation:

The plotted points do not follow a general direction and therefore have no correlation

Answer:

hi

Step-by-step explanation:

2(3m+6)=2×3m+2×6=6m+12

have a nice day

Answer:

d

Step-by-step explanation:

Answer:

k

Step-by-step explanation:

-3k minus -3k

-2k-(-3k)

-2k+3k

k

Answer:

hmmm.

Step-by-step explanation:

times it by 12,000

like 12,000 being half a day

hahaha I dont know