f (x) = x2 + 4
What is the value of x when f (x) = 42
A. -2
В. 0
C 12
D. 20

Answers

Answer 1

Answer:

f(x)=X^2+4

f(x)=42

42=X^2+4

X^2+4=42

X^2=42-4

X^2=38

X=sqrt(38)=6.16

[tex] \sqrt{?} [/tex]


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a = 18

Step-by-step explanation:

36 / 2 = 18

18 + 18 =36

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y= 0.50x

Step-by-step explanation:

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I got 76 for #1 your welcome

I got 12 for number #2(good luck)

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Answer:

TUP and PUQ

Step-by-step explanation:

Adjacent angles share a common vertex and common side, but don't overlap.

solve for x, 1. -2x+4=18
2. x/3 - 1=5

Answers

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

x-15/4-(1/18)=0

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I HOPE IT HELPS! And can I get brainiest?

Jenny's frog made one jump of 2.34 meters. Christina's frog made jumps of 1.22 meters and 0.89 meters.

How much further did Jenny's frog jump in one jump than Christina's frog in two jumps combined?

Answers

Answer:

0.23

Step-by-step explanation:

Check
Match the fraction with the equivalent decimal or percentage.
3/20
38%
19/50
0.37
1/3
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Answers

Answer:

See below

Step-by-step explanation:

Fraction Decimal

3/20. 15%

19/50. 38%

1/3. 33%

37/100. 37%

1/4. 25%

Answer:

3/20. 15%

19/50. 38%

1/3. 33%

37/100. 37%

1/4. 25%

Step-by-step explanation:

edge 2021

Which statement describes the graph of this polynomial function?
f(x)= x4+ x3 - 2x2
The graph crosses the x-axis at x = 2 and x = -1 and touches the x-axis at x = 0.
The graph touches the x-axis at x = 2 and x = -1 and crosses the x-axis at x = 0.
O The graph crosses the x-axis at x = -2 and x = 1 and touches the x-axis at x = 0.
The graph touches the x-axis at x = -2 and x = 1 and crosses the x-axis at x = 0.

Answers

Answer:

Option (3)

Step-by-step explanation:

Given function is,

f(x) = x⁴ + x³ - 2x²

     = x²(x² + x - 2)

     = x²(x² + 2x - x - 2)

     = x²[x(x + 2) - 1(x + 2)]

     = x²(x + 2)(x - 1)

So the factored form of the polynomial function is,

f(x) = x²(x + 2)(x - 1)

For x - intercepts,

F(x) = x²(x + 2)(x - 1) = 0

x = -2, 1

This function has even multiplicity = 2 at x = 0.

Therefore, graph of the function will touch the x-axis at x = 0

And at other roots x = -2, 1 has odd multiplicity = 1, so the graph will cross the x-axis.

Option (3) will be the correct option.

WILL MARK BRAINLIEST

Which is the simplified version of 7x−4(x−8)=56?
A
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B
3x−8=56

C
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D
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Answers

The answer is D
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Kayla wants to purchase some candy. All varieties of candy are $2.50. Kayla buys strawberry and mango candy. Write an expression that represents the total cost.



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Answers

Answer:

2.50s + 2.50m

Step-by-step explanation:

s stands for strawberry

m stands for mango candy

each candy costs 2.50

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The answer have to be (A)

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Answer:

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Step-by-step explanation:

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Answer:

4.5%

Step-by-step explanation:

Converting Dollars to cents we get,

$10=1000 cents

plz mark as brainliest

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Answers

Answer:

the 1st 2nd and last one

Step-by-step explanation:

Answer:

The first one, the third and the fourth one.

A company that makes hair-care products had 5,000 people try a new shampoo. Of the 5,000
people, 35 had a mild allergic reaction. What percent of the people had a mild allergic reaction?

Answers

1750 is 35 percent of 5000


Here is a list of numbers.
17 21
14
17
12
15
16
a) Work out the range of the numbers in the list.
b) Work out the mean of the numbers in the list.

Answers

Answer:

Range - 9

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Step-by-step explanation:

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Answers

Answer:

x = 1 ± [tex]\sqrt{6}[/tex]

Step-by-step explanation:

Given

2x² - 4x = 10 ( divide through by 2 )

x² - 2x = 5

Using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = 5 + 1

(x - 1)² = 6 ( take the square root of both sides )

x - 1 = ± [tex]\sqrt{6}[/tex] ( add 1 to both sides )

x = 1 ± [tex]\sqrt{6}[/tex] ← exact solutions

Answer:

[tex]x \pm\sqrt6 +1[/tex]

Step-by-step explanation:

Hello!

Standard form of a quadratic: ax² + bx + c

Solve:

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Now, complete the square:

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Add and subtract that in our equation:

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The perimeter of a rectangular pool is 48 feet. Its length is 4 feet
more than its width.
Let the width of the pool be represented by x.
Which equation below can be used to describe the situation?
A x(x + 4) = 48
B 2x + 2(x + 4) = 48
С2x + 2x + 4 = 48
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Answers

Answer:

B

Step-by-step explanation:

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32x is the answer in terms of x. just multiply 4 times 8

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Step-by-step explanation:

hope it helps!

.....

8. Alex is buying a pair of new Nikes. Champs decided to apply a markdown of 35%. He found a coupon online for an additional 10% discount. What is the final cost after the markdown and then coupon is applied if the Nikes original cost is $130?

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Answer:

175

Step-by-step explanation:

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Answer:

I listed the coordinates below. Just place them on a graph and draw a line connecting the points.

Step-by-step explanation:

(-1,-8)

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Answers

Answer:

6−6 :)

Step-by-step explanation:

tire rim has a diameter of 15 in. What is the circumference of the tire rim? Use 3.14 for Pi.
23.55 in.
46.10 in.
47.1 in.
94.2 in.

Answers

Step-by-step explanation:

[tex] \underline{ \underline{ \text{Given}}} : [/tex]

Diameter ( d ) = 15 in Pi ( π ) = 3.14

[tex] \underline{ \underline{ \text{To \: find}}} : [/tex]

Circumference ( C )

[tex] \underline{ \underline{ \text{Solution}} }: [/tex]

[tex] \boxed{ \sf{Circumference \: of \: a \: circle ( C ) = \pi \: d}}[/tex]

⇢ [tex] \sf{3.14 \times 15}[/tex]

⇢ [tex] \sf{47.1 \: in.}[/tex]

[tex] \red{ \boxed{ \boxed{ \text{Our \: final \: answer : \boxed{ \underline{ \tt{47.1 \: in.}}}}}}}[/tex]

Hope I helped ! ツ

Have a wonderful day / night ! ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

If the bearing from A to B is 034 what is the beating from B to A?

Answers

Step-by-step explanation:

This is called a back bearing

when the given angle is less than 180, then the back bearing is= the given angle + 180

34+180=214°

How many 3/4 cup servings are in a 6 cup container milk?

Answers

Answer:

There are 8 3/4-cup servings.

Step-by-step explanation:

What we know:

There is a 6-cup container of milk.

What we don't know:

How many 3/4-cup servings are there?

What we should do:

Divide 6 by 3/4.

6 / 3/4

This is the same as 6 times 4/3.

6 * 4/3

24/3

There are 8 3/4-cup servings in a 6-cup container of milk.

Your friend really wants to buy the newest coolest cell phone which will cost him $310 he gets a job detailing cars and suvs and plans to save all the money he earns if he gets paid $60 to detail a car and $85 to detail an suv which of the following inequalities can be used to determine how many of each he must detail in order to earn at least $310

Answers

Answer:

[tex]60c + 85s \geqslant 310[/tex]

Step-by-step explanation:

He needs to earn at least $310 so $60 per car is 60c and $85 per SUV is 85s. So the answer is the third option.

The required inequality:

60x + 85y >= 310

What is inequality?

In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.

Given, a person gets paid $60 to detail a car and $85 to detail an SUV.

Let's assume he needs to detail x number of cars and y number of SUVs to earn at least $310.

Then, the amount earned by detailing x cars and y SUVs can be expressed as:

60x + 85y

According to the problem statement, he wants to earn at least $310, so we can write the inequality:

60x + 85y >= 310

This is the required inequality to determine the number of cars and SUVs he needs to detail in order to earn at least $310.

Learn more about inequalities here:

https://brainly.com/question/30231190

#SPJ5

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