Solve: x2 - 2x + 1 = 4
Please help me

Answer:

they look like v x y now when your doing multi dont use the x or it will think its a variable

Step-by-step explanation:

so like this 2+3=y

in sted of useing x for multi use •

i hope this helps you can use any letter in variables

Answer:

Its B

Step-by-step explanation:

Answer:

80%

Step-by-step explanation:

ALEX=54/60×100=90%

DANI=48/60×100=80%

DORA=41/60×100=68

DEXTER=45/60×100=75%

TOMMY=46/60×100=76%

Our of 5 students only four passed so that'll be =4/5×100 which is 80%

Answer:

yes

Step-by-step explanation:

The amount Cheryl earned from the per time job is $82.

The three of them earned $550 from their part time jobs.

Li Ying earned $28.

Daniel earned 4 times as much as the total amount of Cheryl and Li Ying's earnings.

let

x = amount Cheryl earned

y =  amount Daniel earned

Therefore,

y = 4x + 112

y - 4x = 112

The three of them earned $550. Therefore,

x + y = 522

Let's combine the equation.

y - 4x = 112

x + y = 522

5x = 410

x = 410 / 5

x = 82

Therefore, Cheryl earned $82.

learn more on algebra here: https://brainly.com/question/2387883

Answer:

To find c you know that angles on a straight line equal 180° (supplementary angles). So 70+30+∠C=180.

Now we can solve this.

100+c=180.

Move the 100 over to the other side.

100-100+c=180-100

Simplify.

∠C=80°

Because we know that the two lines with double arrows are parallel, we can use the rule that alternate interior angles are congruent. This means that ∠E=70.

∠E=70°

Since the total sum of the angles in a triangle are equal to 180°, we know that ∠D+∠C+∠E=180. Because we already know ∠C and ∠E we can put those numbers in for them. 80°+70°+∠D=180°. Now we can solve this.

80+70+D=180

Simplify this.

150+D=180

Now we move the 150 over to the other side to get D by itself.

150-150+D=180-150

Simplify.

D=30

∠D=30°

Now we can find the vertical angle opposite ∠A by using the alternate interior angles rule again this time using the parallel lines with only one arrow on them. The vertical angle opposite ∠A=30°. Since vertical angles are congruent ∠A=30°.

∠A=30°

We are going to use the alternate angles rule one more time to solve for ∠B (this rule is very important when dealing with parallel lines), we could also use the corresponding angles rule but for simplicity we will just stick with the alternate angles rule. Because the vertical angle opposite ∠A is equal to 30°, we can see that the supplementary angle opposite ∠B=30°. Because this angle is supplementary with B we know that 30+B=180.Now we can solve this.

30+B=180

Now we move the 30 over to the other side.

30-30+B=180-30

Simplify.

B=150

∠B=150°

I hope this helps!

Answer:

<b=150

Step-by-step explanation:

Answer:

$120000

Step-by-step explanation:

$265000 - $145000 = $120000

Answer:

see explanation

Step-by-step explanation:

To find the first 3 terms substitute n = 1, 2, 3 into the formula

(a)= 25 - (3 × 1) = 25 - 3 = 22 = 25 - (3 × 2) = 25 - 6 = 19= 25 - (3 × 3) = 25 - 9 = 16

The first three terms are 22, 19, 16

Note the difference between consecutive terms is - 3

19 - 22 = 16 - 19 = - 3

Continuing this pattern

(b)16 - 3 = 13 13 - 3 = 10 10 - 3 = 7  7 - 3 = 4  4 - 3 = 1  1 - 3 = - 2

The first negative term is - 2

Answer:

I think it’s B but I’m sorry if wrong

Step-by-step explanation:

Answer:

B. 3.88

Step-by-step explanation:

Point Q is 3.86 and point R is 3.92

3.88 is the only answer that is between the numbers.

Answer:

-60q+60r/4

Step-by-step explanation:

Hope this helps

Answer:

-2/3

Step-by-step explanation:

I think this would help u

Answer:

35 cm

Multiply height times width.

7 x 5 = 35

Therefore, the area should be 35.

Assume the  cost in dollars of a call, y, is a linear function of the time in minutes, the linear equation that gives the cost of a Sunday call is y = 0.05x + 0.34

The linear equation is represented as follows:

y = mx + b

where

m = slope

b = y -intercept

Therefore,

(44, 2.54)(10, 0.84)

m = [tex]\frac{0.84-2.54}{10-44}[/tex]

m = [tex]\frac{-1.7}{-34}[/tex]

m = $0.05

Therefore,

y = cost in dollars

x = time in minutes

0.84 = 0.05(10) + b

0.84 - 0.5 = b

b = 0.34

Therefore,

y = 0.05x + 0.34

learn more on linear equation here: https://brainly.com/question/6663166

Answer:

uch hcufh hcjcjck j j k jcucydh h h jxh b j h h n b b b b j n n n n n n j h h h hcucucuchch h hxj j n h n n n j j b kcufufudydyfufudificn j h jcifif

Answer:

  about 0.70

Step-by-step explanation:

The "climate ratio" is the ratio P/Ep.

For your values, the climate ratio is ...

 climate ratio = 267/381 = 89/127 ≈ 0.70

__

This means potential evaporation exceeds annual precipitation.

Answer:

y = 4x + 8

Step-by-step explanation:

parallel mean the same slope so you can start with an equation of:

y = 4x + b

now we solve for b by inserting the coordinates and solving for b:

0 = 4 ( -2) + b

0 = -8 + b

8 = b

now put b into the equation:

y = 4x + 8

Answer:

Explaining the concept:

We have been given a piecewise function, which means that this function is defined differently for different values

notice that in the function, at the end of each row, we have an 'if' statement

if the input value satisfies the if statement, the function of that respective row will be used

Finding the Values:

h(-5):

since the input value is unequal to -2, the first function will be used (because the if statement at the end of the first function is satisfied by the input value)

h(x) = -(x/4) - (2)      (since x ≠ -2)

replacing x with -5

h(-5) = -(-5/4) - 2

h(-5) = (5-8) / 4

h(-5) = -3/4

h(-2):

From the 2 if statements, we notice that this input value satisfies the second statement (x = -2)

Therefore, the second function will be used

h(x) = -1 (for x = -2)

h(-2) = -1

h(0):

This input values satisfies the first if statement.

Hence, the first function will be used

h(x) = (-x/4) - 2              (for x ≠ -2)

replacing x with 0

h(0) = (-0/4) - 2

h(0) = -2

Answer:

31.5 years.

Step-by-step explanation:

Half life is given by  [tex]= -\frac{ln(2)}{k}[/tex]. Where we use the natural logarithm. Plugging in a value of [tex]k = -0.022[/tex] we get: 31.5 years for the half life.

Answer:

7y+ 42

Step-by-step explanation:

Answer: 7y+42 I think :^)

Step-by-step explanation:

Answer:

10√(w⁵v⁷)

Step-by-step explanation:

√(20wv³) × √(5w⁴v⁴) = √(100w⁵v⁷)

reduce...

10√(w⁵v⁷)

I hope this helps, please rate!!

Answer:

[tex]10w^{2}v^{3} \sqrt{wv}[/tex]

Step-by-step explanation:

[tex]\sqrt{20wv^{3} } \sqrt{5w^{4}v^{4} } =\sqrt{(5)(4)wv(v^{2}) } \sqrt{5(w^{2})(w^{2})(v^{2})(v^{2} ) }[/tex]

[tex]=(2v\sqrt{5wv} )(w^{2}v^{2} \sqrt{5} )=2w^{2}v^{3} (5)\sqrt{wv}[/tex]

[tex]=10w^{2}v^{3} \sqrt{wv}[/tex]

Hope this helps

Answer:

For 6, the answer is, x= 65; alternate exterior angles theorem.

For 7, the answer is, x = 17; same-side interior angles postulate

Step-by-step explanation:

I don't have one sorry,

Answer:

Ashley will have a total bill of $54.99

Step-by-step explanation:

1. Convert percentages into fractions or decimals

For fraction: divide 17 by 100 and remove the % sign.

[tex][17][/tex]%[tex]=\frac{17}{100}[/tex]

For decimal: move the decimal point 2 places to the left and remove the % sign.

[tex][17][/tex]%[tex]=0.17[/tex]

2. Multiply the decimal or fraction by the quantity that equals 100%

100%=47

[tex]17/100*47=0.17*47=7.99[/tex]

So hence, 17% is $7.99 of $47

3. Add the Tip with the Cost of the Meal (will give final answer)

to make things easier -

47+7=54

54+0.99=54.99

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quote by - FieryAnswererGT

Thanks!

:D

Answer:

86

Step-by-step explanation:

Answer:

B) 86 cents

Step-by-step explanation:

3 quarters = 75 cents

1 dime = 10 cents

1 penny = 1 cent

75 + 10 + 1 = 86 cents in all!

product = multiplication

so it's    2 * (x+4) = 22

* = product / multiplication

sum = addition

2 * (x+4) = 22

2x + 8 = 22

2x = 14

x = 7

Answer:

Using distributive property you jsut multiply the number outside the parenthesis by each number inside.
In this case its
1/2 ( p + 4)

So multiply each number (or variable) by 1/2

And leave the sign if nothing changes

1/2 * p = 1/2p

1/2 * 4 = 2

You’d get
1/2p + 2

Answer: The answer is 1/4 because

Step-by-step explanation:

11

12

–

2

3

=  

11

12

–

2 × 4

3 × 4

=  

11

12

–

8

12

=  

11 – 8

12

=  

3

12

=  

3 ÷ 3

12 ÷ 3

=  

1

4