4y - 7 = 5x2 - x + 2 + 3y
Quadratic Equations
Options are No, One, Two.
I don't remember learning how to do it with more than a, b, and c variable. I'm so confused please help.

Answer:

the answer is  21600000

Step-by-step explanation:

Answer:

the atomic number of copper equals 29

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[tex]q(x) = {x}^{2} - 3x - 4[/tex]

[tex]q(10) = ( {10})^{2} - (3 \times 10) - 4 [/tex]

[tex]q(10) = 100 - 30 - 4[/tex]

[tex]q(10) = 70 - 4[/tex]

[tex]q(10) = 66[/tex]

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Thus the correct answer is (( C )) .

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The number of gallons of gasoline that the boat will use in 10 hours is 12.5 gallons

If Dedra's boat used 5 gallons of gasoline in 4 hours, this is expressed as:

5 gallons = 4 hours

In order to know the number of gallons needed in 10 hours, this is expressed as:

x = 10 hours

Divide both expressions:

5/x = 4/10

4x = 50

x = 50/4

x = 12.5 gallons

Hence the number of gallons of gasoline that the boat will use in 10 hours is 12.5 gallons

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Answer:

10079

Step-by-step explanation:

There are 8!/(2!*2!) = 10080 ways to arrange the letters of MISSPELL. There is only 1 right way to spell MISSPELL correctly so there are 10080-1 = 10079 ways to spell MISSPELL incorrectly.

Answer:

LCM(30, 35) = 210 minutes.

The 2 Buses will be back at the depot 210 minutes after 5pm, or 5pm + 210 minutes =5 + 3.5 hours =8:30pm

Answer:

4:30 PM

Step-by-step explanation:

Bus A will meet Bus B on it's 10th route at 150 min. Bus B will meet Bus A at its 6th route at 150 min. 150 is also 2 hours and 30 min so they will meet at 4:30 PM.

Answer:

im pretty sure the answer is either a or c because. if i had to choose one though i'd probably go with C

Step-by-step explanation:

a function is a y for every x and im pretty sure both a and c display that, but a is going to all of numbers in the other bubble and there arent any other letters in the first one. hope this helps

Answer:

-5 (4x+y)

Step-by-step explanation:

Factor out -5, and -20/-5=4, -5/-5=1.

Answer:

I suppose that this refers to numbers like:

N = abcd

Where a, b, c and d are single digits.

We want to find the number of 4-digit numbers such that:

a, b, c and d are even numbers.

So let's count the number of options for each digit, where we impose that the possible digits must be even.

a: Here we have the options {2, 4, 6, 8} ( 0 is an even digit, but if we take a = 0, then this would be a 3 digit number) Then we have 4 options for a.

b: Here we have the options {0, 2, 4, 6, 8}. 5 options in total.

c: Here we have the options {0, 2, 4, 6, 8}. 5 options in total.

d: Here we have the options {0, 2, 4, 6, 8}. 5 options in total.

The total number of possible combinations will be equal to the product of the number of options for each selection.

C = 4*5*5*5 = 500

There are 500 "nice" numbers of 4-digits.

Answer:

a,b,c,f

Step-by-step explanation:

The data described on the dot plot will be spread, gap, peak, and cluster. Then the correct options are A, B, C, and F.

A statistical chart called a dot chart or dot plot is made up of data points that are represented on a very basic scale, usually using filled-in circles. The dot chart comes in two widely used but quite different forms.

A statistical chart made up of data points drawn on a relatively basic scale is known as a dot diagram, sometimes known as a dot plot. One of the simplest statistical plots is the dot plot, which is typically applied to tiny data sets. They can be used to draw attention to outliers, gaps skew in the distribution and clusters.

The data described on the dot plot will be spread, gap, peak, and cluster. Then the correct options are A, B, C, and F.

More about the dot plot link is given below.

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Answer:

The statement "(a) all whole numbers are rational numbers" is true.

Step-by-step explanation:

A rational number is the number which can be expressed in the from  of  [tex]\frac p q[/tex], where p, q are integers and q\neq0.

(a.) As all the whole numbers (0,1,2,3...) can be expressed in the form of p/q having q=1.

Hence,  the statement "(a) all whole numbers are rational numbers" is true.

(b). As the rational numbers can have the fractional value but any integers don't have fractional value, so all the rational numbers are not integers.

Hence, the statement "(b). All rational numbers are integers" is not true.

(c). As the rational numbers can have the fractional value but any whole numbers don't have fractional value, so all the rational numbers are not whole numbers.

Hence, the statement "(c). All rational numbers are whole numbers." is not true.

(d). Integers( ...,-2,-1,0,1,2,...) can be negative, but the whole numbers (0,1,2,...) can't be negative. So, all integers can't be whole numbers.

Hence, the statement "(d). All integers are whole numbers" is not true.

Answer:

A

Step-by-step explanation:

Answer:Number of Spearmint gum = 27 pieces

Step-by-step explanation:

step 1

Let the total number of peppermint gum and spearmint gum in the container = X

Ratio of peppermint gum to  spearmint gum=  2 : 3.

Total ratio = 2+ 3=5

Step 2

we were given that  peppermint gum= 18 pieces , so total number of gums  will be calculated as

Ratio of peppermint/ Total ratio x Total number of gums = Number of peppermint

2/5 x X= 18

X=(18X 5) / 2 = 45

X=  Total number of gums = 45

Number of spearmint gum  will now be

Ratio of spearmint/ Total ratio x Total number of gums = Number of spearmint

3/5 x 45= 27

Therefore Number of Spearmint gum = 27 pieces

Answer:

A

Step-by-step explanation:

all triangles equal 180°, it gives you two angles on each triangles. if you add them together and subtract that from 180 you'll get the final angle. the angles on both triangles Are 45,63, and 72. (they add up to 180) and because both triangles have two angels that are the congruent. they are similar by the Angle angle postulate.

Answer: m∠HIJ = m∠IHK because they are alternate interior angles

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

30 percent of 80 is 24, subtract

Answer:

56

Step-by-step explanation:

8 x .7=56

you get .7 by subtracting the 30 percent or .3 from the original price

Answer:

The least amount of pencils that can be bought is 7

Step-by-step explanation:

Step one:

Budget=$50

the cost of one binder= $7

then 5 binders will cost= 7*5= $35

the balance will be 50-35= $15

Step two:

let the number of pencils that can be bought be x

The cost of each pencil = $2

the remaining amount from the budget to get pencils is $15

Hence the number of pencils that can be bought is

x=15/2

x=7.5

The least amount of pencils that can be bought is 7

Answer:

Jillian had a cake and Ruby ate 2/3 of it. Jillian's friends then came over and consumed 3/4 of the kuchen, which Ruby already ate out of. How much of the cake is left?

Step-by-step explanation:

Just think about it with simpler numbers. What if the expression was (4 ÷ 2)? Then the word problem could be made quite easily. Following the previous example, simply replace the numbers (4 and 2) with the fractions given (1/3 and 3/4) and make a few tweaks for it to make more sense.

Good luck!

The total pizza left is 1/3 of the whole pizza. If the remainig student are to take 3/4 of the remaining, how much will each student take

Algebraic equations are ways we can solve real life apllications.

Given the division problem

1/3÷ 3/4 ​

This can be written usng this statement:

The total pizza left is 1/3 of the whole pizza. If the remainig student are to take 3/4 of the remaining, how much will each student take

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Answer:

Step-by-step explanation:

Step one:

given the perimeter function

P = 2S + 2L

we are expected in this problem to change the subject of the formula to S

Step two:

firstly, let us isolate the term that has S

2S=P-2L

divide both sides by 2

2S/2= (P-2L)/2

S=P/2-L

S = 1/2p - L

Answer:

7 to the 7th power

Step-by-step explanation:

To get your answer you add your two exponents together and that becomes your new exponent. Your base number stays the same..

The answer is 7 ⁷

Step-by-step explanation: 7 ⁴ is 343 and 7 ³ is 2401 so if you multiply those together it is

823,543. 7 ⁷ in total is 823,543

Answer:

SHUT THE HELL UP

Step-by-step explanation:

Answer:

80×75+7+4x

Step-by-step explanation:

it's just a expression

Answer:

second A

Step-by-step explanation:

They are alternate interior angles

Answer:

Part A: if cosθ = 4/5 and sinθ < 0, then

secθ = 5/4

sinxθ = 3

tanθ = 15/4, cotθ = 12/5, cscx = 1/3

Step-by-step explanation:

Remember, secθ = 1/4/5 --> 1/4 *5/1 = 5/4

sinx, cscx, cotx, and tanx will be negative because since sinθ < 0 and cosθ is positive, this means that the quadrant will be in quadrant 4

To find these values, we have to use the pythagorean identities

cosx = adj/hyp, sinx = opp/hyp, and tanx = adj/opp

Since 4 is the value of the adjacent side, and we know that x² + 4² = 5².

x² + 16 = 25 ---> x² = 9--> x =3.

Since the value of the opposite side equals 3, and sinx = y, y = 3. Now we can find the rest of our trig values.

Remember that cosθ = x and sinθ = y

tanθ = y/x, cotθ = x/y, secθ = 1/x, cscx = 1/y.

So, since cosθ = 4/5 and sinθ = 3,

tanθ = 15/4, cotθ = 12/5, cscx = 1/3

Answer:

1, not a function because the -2 x repeats it's self twice, and only y functions can repeat

2, yes it is because it is a straight line and none of the x functions repeat

3, yes because none of the x functions repeat

4, yes because all the x functions only have one y function

5, no because 16x repeats

6, no because 2x goes to the same number twice

Step-by-step explanation:

Answer:

On the trig unit circle,

tan 225 = tan (45 + 180) = tan 45 = 1

Answer:

It would be B.

Step-by-step explanation:

divide Y by X.

Answer: 21/5x+12

Step-by-step explanation:

3*7/5x+3*4

21/5x+12