Which ones are the square numbers out of 13 27 81 21 43 23 36 and 45

Answer:

Step-by-step explanation:

This function has a minimum value at vertex (3, -1) and maximum value is infinity.

Answer:

use trial and error

Step-by-step explanation:

lma0

9514 1404 393

Answer:

  x = 21

  y = 60

Step-by-step explanation:

We assume the marks are angle measures.

The angles of a linear pair are supplementary:

  (3x +5) +(6x -14) = 180

  9x -9 = 180 . . . . simplify

  9x = 189 . . . . . . add 9

  x = 21 . . . . . . . divide by 9

__

At parallel lines, corresponding angles are congruent.

  y +8 = 3x +5 = 3(21) +5 = 68

  y = 60 . . . . . subtract 8

Answer:

.

Step-by-step explanation:

Answer:

G

Step-by-step explanation:

a + b + c = 80

Express a and c in terms of b using the ratios in fractional form, that is

[tex]\frac{a}{b}[/tex] = [tex]\frac{2}{3}[/tex] ( cross- multiply )

3a = 2b ( divide both sides by 3 )

a = [tex]\frac{2}{3}[/tex] b

[tex]\frac{b}{c}[/tex] = [tex]\frac{3}{11}[/tex] ( cross- multiply )

3c = 11b ( divide both sides by 3 )

c = [tex]\frac{11}{3}[/tex] b

Substitute the values for a and c into the original equation

[tex]\frac{2}{3}[/tex] b + b + [tex]\frac{11}{3}[/tex] b = 80 ( multiply through by 3 to clear the fractions )

2b + 3b + 11b = 240 , that is

16b = 240 ( divide both sides by 16 )

b = 15 → G

Answer:

the pitch of the roof is 24ft²

Step-by-step explanation:

Formula: 1/2(b×h)

Given: b=4, h=12

> 1/2(4×12)

> 1/2(48)

> 24

False because if 3 is subtracted from 52, then 49 and 27 more would not equal 49 and 24 more. Putting together two larger numbers is not the same as putting together two smaller numbers.

=======================================================

Explanation:

If we break up 52 into 49+3, then we can do the following rearrangement.

52 + 27 = 49 + 24

49 + 3 + 27 = 49 + 24

3 + (49+27) = 49 + 24

Notice that the 49+27 on the left is clearly larger than 49+24 on the right, mainly due to the 27 being larger than 24.

Then adding on 3 more means that the left side gets even larger.

So without having to add either side and simplify fully, we can see that the left side is larger than the right side. There's no way the two sides are the same number.

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Perhaps another quick way is to simply look at the units digits.

The 2 and 7 from 52 and 27 add to 2+7 = 9

The 9 and 4 from 49 and 24 add to 9+4 = 13 and we only care about the 3

The mismatch of the 9 and 3 is more evidence that the two sides aren't the same number.

Answer:

(b)

Step-by-step explanation:

1. In a group of cows and chickens, the number of legs was 14 more than twice the number of heads. The number of cows was:

(a) 5, (b) 7, (c) 10, (d) 12, (e) 14

Solution:

Let the number of cows be x and their legs be 4x.

Let the number of chicken be y and their legs be 2x.

Total number of legs = 4x + 2y.

Total number of heads = x + y.

The number of legs was 14 more than twice the number of heads.

Therefore, 2 × (x + y) + 14 = 4x + 2y.

or, 2x + 2y + 14 = 4x + 2y.

or, 2x + 14 = 4x [subtracting 2y from both sides].

or, 14 = 4x – 2x [subtracting 2x from both sides].

or, 14 = 2x.

or, x = 7 [dividing by 2 on both sides].

Therefore, the number of cows = 7.

Answer:

4

Step-by-step explanation:

When you add them the answer is 1.

Now our equation is X plus 4 minus 2 plus X so we will substitute X to our answer which would be

(1) plus 4 -2 plus (1)

1 plus 4 - 2 plus 1

equals to 4

Our answer is 4

Answer:

5 plus 15 is 20 and then subtract 10 it will become 10 then add 20 it became 30 then subtract 15 it will become 15 then add 25 to 15 answer 40

Step-by-step explanation:

the numbers are repeated again and again like we added 5 to 15 we got 20

then later we added 20 to 10 it became 30

15 is 30% of 50. This is found by setting up a proportion: 15/50 = Percent/100, solving for Percent gives 30.

Let's call the part we're trying to find the percent of the "portion."

Portion = 15 (the value you want to find the percent of)

Total = 50 (the total value or whole)

Set up the proportion.

The ratio of the portion to the total as a percent, so we can set up a proportion:

Portion / Total = Percent / 100

Plug in the values.

Portion / 50 = Percent / 100

Solve for the percent:

Portion × 100 = 50 × Percent

Divide both sides by 50:

Percent = (Portion × 100) / 50

Calculate the percent:

Percent = (15 × 100) / 50

Percent = 1500 / 50

Percent = 30

Therefore, 15 is 30% of 50.

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Step-by-step explanation:

10x+1=12x-5

1+5=12x-10x

6=2x

6/2=2x/2

3=x

Answer: 4/10 + 1/5 = 0.6 and  4/10 - 1/5 = 0.2.

Step-by-step explanation:

1. Convert the fractions into decimals by dividing the numerator(the number to the left or top of the fraction) by the denominator(the number to the right or bottom of the fraction.

2. For the first question, add the two decimals to get your answer. For the second question, you subtract. 0.4-0.2.

Answer:

the graph does represent a function

Answer:

x=7

Step-by-step explanation:

Because im right

Answer:

C

Step-by-step explanation:

Easy as

9,4

2,4

4-4 0 Distance

9-2

7 distance

Hope this helps!

Answer:

y=2x+8

Step-by-step explanation:

Hope this helps! :)

Answer:

every 1 candy bar sold she earned 0.65 cents

Step-by-step explanation:

Answer:

35.75$/55=0.65$

Step-by-step explanation:

The value of the expression (x² + 3x + 2) × (2x² + 3x - 1) will be 2x⁴ + 9x³ - 12x² + 3x - 2.

When the relevant components and basic processes of a numerical method are given values, the expression's result is the result of the computation it depicts.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The expression is given below.

⇒ (x² + 3x + 2) × (2x² + 3x + 1)

Simplify the equation, then we have

⇒ (x² + 3x + 2) × (2x² + 3x - 1)

⇒ x²(2x² + 3x - 1) + 3x(2x² + 3x - 1) + 2(2x² + 3x - 1)

⇒ 2x⁴ + 3x³ - x² + 6x³ + 9x² - 3x + 4x² + 6x - 2

⇒ 2x⁴ + 9x³ - 12x² + 3x - 2

The value of the expression (x² + 3x + 2) × (2x² + 3x - 1) will be 2x⁴ + 9x³ - 12x² + 3x - 2.

More about the value of the expression link is given below.

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Answer:

y=5x-14

Step-by-step explanation:

hope this helps!

From the figure shown where MN is parallel to PQ:

m<MSR   =  100°

m<STQ   =  80°

By carefully observing the figure shown:

<MSR is vertically opposite to <NST

Vertically opposite angles are equal

m<NST  =  (17x  +  15)

<NST is alternative to <PTS

Alternative angles are equal

Therefore, m<NST  =  m<PTS

m<NST = 17x + 15

m<PTS  =  19x + 5

17x  +  15   =  19x  +  5

19x  -  17x =  15  -  5

2x   =  10

x   =  10/2

x   =  5

m<NST  =  17x + 15

m<NST  =  17(5)  +  15

m<NST  =  100°

Since m<MSR  =  m<NST

m<MSR   =  100°

m<PTS  =  19x + 5

m<PTS  =  19(5)  +  5

m<PTS  =  100°

m<PTS  +  m<STQ  =  180° (Sum of angles on a straight line)

100   +  m<STQ   =  180

m<STQ   =  180 - 100

m<STQ   =  80°

From the figure shown where MN is parallel to PQ:

m<MSR   =  100°

m<STQ   =  80°

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The domain of the function (cd)(x) will be all real values of x except x = 2.

Step-by-step explanation:

The two functions are c(x)=

[tex] \frac{5}{ \times - 2} [/tex]

and d(x) = x + 3

So, (cd)(x) =

[tex]( \frac{5}{ \times - 2} )( \times + 3) = 5\frac{( \times + 3)}{ \times - 2} [/tex]

Therefore, the domain of the function (cd)(x) will be all real values of x except x = 2. (Answer)

Answer:

121/144

Step-by-step explanation:

Answer:

75

Step-by-step explanation:

Let n be the unknown number

Answer:

the number is 49

Step-by-step explanation:

first, write an equation based on the words

4 increased by= 4+

three fifths of a number = [tex]3/5 * n[/tex]

is 49: =49

now, put it together: [tex]4 + 3/5*n=49[/tex]

Now, solve

4 + 3/5*n=49

4-4=0   49-4= 45

3/5*n=45

3/5*n / 3/5= n    45/ 3/5= 75

n=75

hope this helps:)

please crown me brainliest!!!

Answer:

x=2

Step-by-step explanation:

first you distribute the two on the left side of the equation and get 2x+10= -10x+34. Then add 10x to both sides of the equation to get 12x+10=34. Then subtract 10 from both sides of the equation to get 12x=24. finally divide both sides of the equation by 12 and get x=2

Answer: V/D = T

Step-by-step explanation:

Answer:

      A ✔

Step-by-step explanation:

Answer:

Which expression is equal to “8 less than the product of y and 9"'?​

Step-by-step explanation:

x=2

Step-by-step explanation:

is a equation is simple

Answer and Step-by-step explanation:

To find the third side, we can use the Pythagorean Theorem.

The theorem states that if a triangle is a right triangle, and we already have two sides, we are able to find the third side.

The Pythagorean Theorem Formula is the following:

[tex]A^2+B^2=C^2[/tex]

A is any of the bases

B is the other base (you can make this the height)

C is the hypotenuse (the longest side)

We are given B and C, so lets plug them into our formula and solve for A.

[tex]A^2 + (4\sqrt{3} )^2=8^2[/tex]

Subtract [tex](4\sqrt{3} )^2[/tex] from both sides of the equation.

[tex]A^2=8^2 - (4\sqrt{3} )^2[/tex]

Now take the square root of both sides of the equation.

[tex]A=\sqrt{8^2 - (4\sqrt{3} )^2}[/tex]

Now plug this into your calculator and solve.

We get the answer to be:

4

#teamtrees #PAW (Plant And Water)

I hope this helps!

________

[tex] \: [/tex]

a² = c² - b²

a² = 8² - (4√3)²

a² = 64 - 48

a² = 16

a = √16

a = 4