Nancy found that x = 1 is one solution to the quadratic equation (x + 2)2 = a. What is the value of a?

Answers

Answer 1

ANSWER

a=9

EXPLANATION

The given quadratic equation is

[tex] {(x + 2)}^{2} = a[/tex]

If x=1 is a solution, then it must satisfy this equation:

[tex]{(1 + 2)}^{2} = a[/tex]

[tex] {3}^{2} = a[/tex]

[tex]a = 9[/tex]

Therefore the value of 'a' is 9

Answer 2

Answer:

answer is A

Step-by-step explanation:


Related Questions

What is the classification for this polynomial 4uv2w2

Answers

Answer:

The polynomial 4uv²w²  is a monomial, since its a single term.

Degree of polynomial: it is sum of exponent of its variables.

power of u = 1, power of v = 2, power of w = 2

Degree of polynomial: 5

What is the missing value in the equation shown □ x1/10=0.034

Answers

Answer:

0.34

Step-by-step explanation:

Do the inverse operation so;

0.034 / 1/10 = 0.34

Now go back and subsitute,

0.34 * 1/10 = 0.034

Final answer:

In the equation □ x 1/10 = 0.034, the missing value is 0.34 as obtained by isolating □ on one side, i.e., □ = 0.34.

Explanation:

The equation presented in the question is □ x 1/10 = 0.034. The missing value is the number that should be multiplied by 1/10 to result in 0.034. To solve for this missing value, we can rearrange the equation using the basic algebraic method. We isolate the missing value (□) on one side by dividing both sides of the equation by 1/10. This results in □ = 0.034 / (1/10), which simplifies further to □ = 0.34. Therefore, the missing value in the equation □ x 1/10 = 0.034 is 0.34.

Learn more about Equation Solving here:

https://brainly.com/question/19297665

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when is a sequence geometric

Answers

I also think its A cause you find the next term when your multiply the constant (common ratio) so it makes sense for it to be A

Answer:

when each term is multipled by the same number to get the next number

Step-by-step explanation:

[tex]\text{A geometric sequence:}\\\\a_1,\ a_2,\ a_3,\ a_4,\ ....\\\\\dfrac{a_2}{a_1}=\dfrac{a_3}{a_2}=\dfrac{a_4}{a_3}=...=\dfrac{a_n}{a_{n-1}}=r=constant\\\\r-\text{common ratio}\\\\a_2=a_1r\\a_3=a_2r\\a_4=a_3r\\\vdots\\a_n=a_{n-1}r\\\\\text{next term is created from the previous one by multiplying it}\\\text{by the same number}[/tex]

Which matrix is equal to... (picture added)

Answers

Answer:

D [tex]\left[\begin{array}{ccc}-6&-6.5&1.7\\-2&-8.5&19.3\end{array}\right][/tex]

Step-by-step explanation:

Two matrices are equal when they

have the same sizes (so options A and B are false)have equal corresponding elements (so option C is false, because -6≠6, -6.5≠6.5, 1.7≠-1.7 and so on)

If in option D the second row is 2  -8.5  19.3 , then these matrix is equal to the given.

Answer:

Its D on edge

Step-by-step explanation:

AN
Jamal has 10 sets of collectible coins. Each set has 5 coins. How many collectible coins does Jamal have?
5
10
50
100

Answers

Answer:50

Step-by-step explanation:each of the 10 sets have 5 coins basically (10*5) = 50

50

10sets*5coins=50total coins

Which expression is equivalent to (-3y-x)-(5y-8x)

A.-8y-8x
B.-8y+7x
C.2y-7x
D.8y+8x

Answers

Multiply the negative sign into the second bracket and get rid of both brackets

-3y-x-5y+8x

Collect like terms

-8y+7x

Answer:

B:  -8y + 7x

Step-by-step explanation:

Start with (-3y-x)-(5y-8x).  This is a subtraction problem.  Subtract 5y from -3y, obtaining -8y.  Next, subtract -8x from -x; this is equivalent to  -x - (-8x), or 7x.

Then the difference -x + 8x = 7x.

Combining the x and y results, we get   B:  -8y + 7x.

ILL GIVE BRANLIEST!!!
What value of g makes the equation true? (X+7)(x-4)=x^2+gc-28

Answers

Answer:

The left side is not equal to the right side, which means that the given statement is false.

False

Step-by-step explanation:

Answer: g= 3x/c

Not sure if this helps

The ratio of roses to daisies is 8 roses to 6 daisies.
If there are 16 roses, how many daisies are there?

Answers

12 Roses since your multiplying by 2

Answer:12

Step-by-step explanation: there are 8 roses and 6 daisies, if 8 turns into 16, that’s multiplied by 2, so you multiply 6 by 2 and get 12,

8 * 6

_ * _

16*X, cross multiply

Match the expression with its
name.

9x^4-3x+4

A. Quadratic monomial
B. Not a polynomial
C. Cubic binomial
D. Fourth-degree trinomial

Answers

Answer:

D. Fourth-degree trinomial

Step-by-step explanation:

I think this would be the correct answer because the highest degree the polynomial is raised to would be 4 (hence the fourth degree). It would be a trinomial because of 9x^4, 3x, and 4

A piece wise function is graphed below. Fill in all of the blanks to give an algebraic description of the function

Answers

Answer:

P - 4

Step-by-step explanation:

there are 12 collectors donating a total of 48 paintings.

48/12=4

each collector will donate 4 paintings.

Sergio has (p) paintings now, so after he donates 4 paintings, he will have p-4 paintings in his art collection.

Sergio will have p-4 paintings in his art collection after his donation

Mr Johnson, the store owner, ordered 48 boxes of jawbreakers. Each box contained 392 pieces of candy. How many lawbreakers did Mr. Johnson order?​

Answers

Answer:

Mr. Johnson would have ordered 18816 jaw breakers.

Step-by-step explanation:

Multiply 392 by 48

Mr. Johnson ordered a total of 18816 jawbreakers by multiplying the number of boxes (48) by the number of pieces of candy per box (392).

The question involves calculating the total number of jawbreakers Mr. Johnson ordered. To do this, we need to multiply the number of boxes ordered by the number of pieces of candy per box.

Step-by-step calculation:

Identify the number of boxes ordered: 48 boxes.

Identify the number of candies per box: 392 pieces.

Multiply the number of boxes by the number of candies per box to find the total: 48 boxes × 392 pieces/box = 18816 jawbreakers.

Therefore, Mr. Johnson ordered a total of 18816 jawbreakers.

Lines XU and WY intersect at point A.

Based on the diagram, determine, determine whether the statement is True or False.

The angle vertical to YAU measures 50°

(A.) True

(B.) False​

Answers

The answer is A. True

The total cost of a dress,including tax, was $121.37. If 6% tax was added to the sale price, what was the sale price before taxes?

Answers

Answer:

We have

sale price + 6% x sale price = $121.37;

Then

(106/100) x sale price = $121.37;

sale price = $121.37 x 100 / 106;

sale price = $12137 / 106;

sale price = $114.50;

Step-by-step explanation:

To find the sale price of a dress before a 6% tax added up to a total of $121.37, divide the total by 1.06. The original sale price was $114.50.

The student is asking how to calculate the sale price of a dress before tax when the total cost, including a 6% tax, was $121.37. To find the sale price before taxes, you need to divide the total cost by 1 plus the tax rate expressed as a decimal.

First, convert the percentage to a decimal, which gives us 0.06 for a 6% tax. Then, add 1 to the tax rate (1 + 0.06 = 1.06) and divide the total cost by this sum to get the original price:

Sale price = Total cost / (1 + Tax rate)
Sale price = $121.37 / 1.06
Sale price = $114.50 (rounded to the nearest penny)

Therefore, the original sale price of the dress was $114.50.

Simplify.
2
(8w)
Write your answer without parentheses.

Answers

Answer: I believe the answer would be 64w2.

Step-by-step explanation: 8 squared is 8 x 8, which equals 64, and then w squared is just w2, since we don't know what it is. Put them together, and the answer is 64w2.

Hi There!

--------------------------------------

Answer:

64w²

Step-by-step explanation:

= (8w)²

= 8w × 8w

= 64w²

--------------------------------------

Hope This Helps :)

Find the similarity ratio of the larger triangle to the smaller one.

Answers

Answer:

A

Step-by-step explanation:

The base of the larger triangle is twice as large as the smaller one: 6 v 3 --> 6 : 3 --> 2 : 1.

The ____ identity is 1.


a) additive
b) multiplicative
c) distributive

Answers

I think it’s B) multiplicative

A bookshop has a sale.
A book normally costing $39.95 is priced at $23.97.
By what percentage has the price been reduced?

please show working out

Answers

Answer:

The price been reduced by a percentage of 40%

Step-by-step explanation:

we know that

$39.95 -----> represent the 100%

so

The difference of prices is equal to ($39.95-$23.97)=$15.98

Using proportion

Find the percentage of the difference

100/39.95=x/15.98

x=100*15.98/39.95

x=40%

Answer:

40% is the percentage decreased.

Hope it helped!

Thanks.

Find the slope intercept form of the equation for the line that goes through (3, 5) and is parallel to y=5x - 1.

Answers

Answer:

y=5x-10

Step-by-step explanation:

slope intercept form is y=mx+b

since we know it is parallel to y=5x-1, we know that it has the same slope of 5.

So, we plug it in:

y=mx+b

y=5

x=3

(taken from point (3,5))

m=5

(taken from parallel line)

5=(5)(3)+b

5=15+b

b=-10

The equation would be y=5x-10

Based on the graph how many real nunber solutions does x^3+6x^2+8=0 have ?

Answers

Answer:

ONE

Step-by-step explanation:

ONE real number solution.  The graph intersects the x-axis in only one place.

Which statement is true?
is not a logarithmic function because the base is greater than 0.
is not a logarithmic function because the base is a square root.
is not a logarithmic function because the base is equal to 1.
is not a logarithmic function because the base is a fraction.

Answers

3 is correct , base is never equal to 1 cause all of solves of logarithm will be 0

Answer with explanation:

Consider a Logarithmic Function

  [tex]y=\log_{a} b\\\\y=\frac{\log b}{\log a}\\\\ \text{if, a=1,then}\\\\y=\frac{\log b}{\log 1}\\\\y=\frac{\log b}{0}[/tex]

which is not defined.

Also,⇒ a∈(0,∞)≠1.

b> 0, that is, b∈(0,∞)

Option C:

 is not a logarithmic function because the base is equal to 1.

Find the unknown: 4:2:3 = x : 18: 27​

Answers

Final answer:

To find the unknown values in the given ratios, solve for x by setting up proportions and using cross-multiplication to calculate the missing value.

Explanation:

Find the unknown: 4:2:3 = x : 18: 27

Calculate the ratio of the known values: 4/2 = 2, and 3/2 = 1.5.Set up the proportion: 2 = x/18 and 1.5 = x/27.Solve for x by cross-multiplication: x = 36 for the first ratio and x = 40.5 for the second ratio.

A piece of machinery valued at $250,000 depreciates at 12% per year by the fixed rate method. After how many years will the value have depreciated to 100,000

Answers

Answer:

6.7 years (approx)

Step-by-step explanation:

The truck lot has 274 eighteen wheelers and 89 regular trucks. How many wheels are in the parking lot?
Put a equation please c: thank you

Answers

Answer=5288

Step-by-step explanation: I got it know so basically (18*274) + (89*4) which equals 4932+356=5288

Answer:

5288 wheels

Step-by-step explanation:

Wheel count:  18(274) + 89(4) (since regular trucks have 4 wheels)

This comes to 4932 + 356, or 5288 wheels in the lot.

PLEASE HELP DETAILS ARE BELOW I WILL RATE BRAINIEST CHORD AND ARCS FIND THE MEASURE OF ARC CD DETAILS BELOW

Answers

Wouldn’t it be 36.7 because that’s the arch am I right?

Answer:

The measure of arc CD is 114.6°.

Step-by-step explanation:

Let the center of the circle be O and OP is perpendicular to CD at point point P.

The perpendicular line from the center of circle divide each chord in two equal parts. so, CP=DP.

[tex]CP=\frac{CD}{2}=\frac{36.7}{2}=18.35[/tex]

In a right angles triangle,

[tex]\sin\theta =\frac{opposite}{hypotenuse}[/tex]

In a right angles triangle OPC,

[tex]\sin\angle POC =\frac{18.35}{21.8}[/tex]

[tex]\angle POC =\sin^{-1} (\frac{18.35}{21.8})[/tex]

[tex]\angle POC \approx 57.3[/tex]

In triangle OPC and OPD,

[tex]OC=OD[/tex]                  (Radius)

[tex]OP=OP[/tex]                  (Reflexive property)

[tex]CP=DP[/tex]                   (Altitude on chord from center)

By SSS postulate

[tex]\triangle OPC\cong \triangle OPD[/tex]

[tex]\angle POC\cong \angle POD[/tex]                      (CPCTC)

[tex]\angle POC=\angle POD[/tex]

The measure of angle COD is

[tex]\angle COD=\angle POC+\angle POD[/tex]

[tex]\angle COD=2\angle POC[/tex]

[tex]\angle COD=2(57.3)[/tex]

[tex]\angle COD=114.6[/tex]

Therefore the measure of arc CD is 114.6°.

the graph of a function never has two diferent points with the same x coordinate because ​

Answers

It is undefined, meaning it will not pass the vertical line test

From 11:50 a.m. to 12:40 p.m. is

Answers

If you’re wondering the minutes in between it would be 50 minutes from 11:50am to 12:40pm

Jack made $200 for working 40 hours. Saida made $242 for 44 hours of work. Are the pay rates proportional?

Answers

Answer:

No.

Step-by-step explanation:

If they are proportional, they equal each other.

We can use a proportion.

200/40 = 242/44

Simplify.

5 = 5.5

So they are not proportional.

I need help with solving the equation

2x - 5 = x - 7

and i need the steps to solve the problem

Answers

2x - 5 = x - 7

First, let's subtract x from both sides:

2x - x - 5 = x - x - 7

x - 5 = -7

Now, let's add 5 to both sides:

x - 5 + 5 = -7 + 5

x = -2

Answer:

x = -2

Step-by-step explanation:

2x - 5 = x - 7

2x - x - 5 = -7

2x - x = -7 + 5

Now we have isolated x

2x - x = 5 - 7

2x - x = -2

x = -2

Which function results after applying the sequence of transformations to
f(x) = x^5?
• stretch vertically by 3
• translate up 1 unit
• translate left 2 units

Answers

Answer:

The resulting function after the sequence of transformations is  [tex]f(x)=3(x+2)^5+1[/tex]

Step-by-step explanation:

Given a function f(x)

the function a*f(x) will be a vertical stretch of factor a,  given a > 1 the function f(x) + b will be the translated function vertically up b unitsthe function f(x+c) will be horizontally translated function of the original by c units left

Remembering these points, we can apply the rules to [tex]x^5[/tex].

Strech vertically by 3 would be [tex]3x^5[/tex]translate up 1 unit would be [tex]3x^{5}+1[/tex]translate left 2 units would make it [tex]3(x+2)^5+1[/tex]

Hence the new function would be  [tex]3(x+2)^5+1[/tex]

Answer:

f(x) = 3(x+2)⁵+1

Step-by-step explanation:

Ap3x

what is 2/5 of 255???

Answers

Answer:

102

Step-by-step explanation:

Answer:

102.

Step-by-step explanation:

First, divide 255 by 5 (255÷5=51).

Then multiply the result of 255÷5 by 2 (51×2)

And 51×2=102

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