HELP PLS its advanced pre algebra grade 7

Answer:

x=1

Step-by-step explanation:

Since both lines have 1 as it x value, x=1 is the line

Answer:

=[tex](x-1)(x+6)[/tex]

Step-by-step explanation:

Answer:

[tex]x^{2} +5x-6=(x-1)(x+6)[/tex]

Step-by-step explanation:

Answer:

Saints team scores points = 17

Browns team scores point = 30

Step-by-step explanation:

Let Saints team scores points = x

      Browns team scores point = y

As given,

The Browns scored 13 more points than the Saints.

⇒ y = x + 13

Now, given

The total of  their scores was 47.

⇒ x + y = 47

⇒x + x + 13 = 47

⇒ 2x = 47 - 13

⇒2x = 34

⇒x= [tex]\frac{34}{2}[/tex] = 17

∴ we get

Saints team scores points = x = 17

Browns team scores point = y = x + 13 = 17 + 13 = 30

Answer:

30 , 17

Step-by-step explanation:

browns  have x + 13

saints have y

x+13 + x+y = 47

2x = 34

x=17

17 + y = 47

y=30

Answer:

3 to the 4th power.

Step-by-step explanation:

Basically, here 3 to the 3rd power is 27. Multiplying it by 3 is only adding another power, making it 81, which is the same answer to 3 to the 4th power if that makes sense.

Answer:

x = 2

Step-by-step explanation:

4x - 2 = 22 - 8x

Move all variables to a single side by adding 8x to both sides of the equation.

4x + 8x - 2 = 22 - 8x + 8x

12x - 2 = 22

Add 2 to both sides to move the constants to one side.

12x - 2 + 2 = 22 + 2

12x = 24

Divide both sides by 12 to isolate the x.

12x / 12 = 24 / 12

x = 2

Answer:

x = 2

Step-by-step explanation:

Add 2 to both sides.

4x - 2 +2 = 22 - 8x + 2

Simplify.

4x=-8+24

Add 8x to both sides.

4x+8x= -8x + 24 + 8x

Simplify.

12x = 24

Divide both sides by 12.

12x/12 = 24/12

Simplfy.

x = 2

hope this helps! :)

Answer:

{0,1,2,3,4,5}

Step-by-step explanation:

We are given that

Total number of  machine parts=300

Number of defective machine parts=10

Total number of good machine parts=300-10=290

Sample contain parts that do not conform to customer requirement=5

X  is a random variable which is the number of parts in a sample of 5 parts that do not conform to customer requirements.

We have to find the correct answer.

The sample contain 5 parts

Therefore, the possible values of random variable X

0,1,2,3,4,5

Hence, the range of X is given by

{0,1,2,3,4,5}

Answer:

A) [tex]32\pi[/tex]

Step-by-step explanation:

First, solve the volume of the cylinder. It's about [tex]87.96[/tex]

Next, find the volume of the cone. It's about [tex]12.57[/tex]

Thus, the total volume is  [tex]87.96[/tex] [tex]+[/tex] [tex]12.57[/tex], which is about [tex]100.53[/tex]

[tex]100.53[/tex] in terms of [tex]\pi[/tex] is A) [tex]32\pi[/tex]

Hope I helped!

Answer:

she can walk 2 miles mph

Step-by-step explanation:

because 80 ÷8=10

16÷8=2

Answer:

2 miles p/h.

Step-by-step explanation:

16 miles walk = 80miles bike  = 16/80 = 0.2 / 1

0.2 / 1 =  1 / 5  =  2 / 10 as we see 8 difference as we continue the pattern.

2 miles per hour is our answer

Answer:

one leg = 5

other leg = 14

Step-by-step explanation:

let 'x' = length of shorter leg

let '2x + 4' = length of longer leg

A = 1/2bh

35 = 1/2x · 2x + 4

35 = x² + 4

x² + 4 - 35 = 0

(x + 7)(x - 5) = 0

x = -7 and x = 5

We can eliminate -7 as an answer since a length cannot be negative

Answer:

The shorter leg = 5

The longer leg = 14

The hypotenuse = 14.866.....

Step-by-step explanation:

if we represent the smaller leg as "x" we firstly represent the longer leg as...

Longer leg = 2x + 4

(We can do this based on the question)

Now we need to undersstadn t in a right angle triangle the legs can be used as a height and base. So we can make the following equation.

[tex]A_{triangle} = \frac{bh}{2}[/tex]

Substitute the lengths of the legs as based and height and get...

[tex]A_{triangle} = \frac{(2x + 4)(x)}{2}[/tex]

[tex]35 = \frac{2x^{2} + 4x}{2}[/tex]

[tex]35 = x^{2} + 2x[/tex]

[tex]35 = x(x + 2)[/tex]

From here we can see that x = 5.

Therefore the lengths are as follows...

The shorter leg = x = 5

The longer leg = 2(5) + 4 = 14

The hypotenuse = [tex]\sqrt{5^{2} + 14^{2} }[/tex]

The hypotenuse = [tex]\sqrt{5^{2} +14^{2} }[/tex]

The hypotenuse = 14.866.....

Answer:

The retail value of the total sales was $311.48

Step-by-step explanation:

14 1/4 dozen cloths were sold

This means that the total number of cloths sold was:

[tex]14*12 + 12*\frac{1}{4} = 168 + 3 = 171[/tex]

Each for $1.88

So the retail value of total sales was.

$1.88*171 = $311.48

The retail value of the total sales was $311.48

Answer:

x = 13.5

Step-by-step explanation:

x = 11 · (sin 34°) / sin 27°

Answer:

120

Step-by-step explanation:

180-27-34=119

119 round up to nearest 10 = 120

You look up at 1 but you are not soposed to answer the question by looking at 1, if you have nearest 10 to round then always look at the units.

Always look at the second digit of the nearest number that you would round up.

Example:

round 560 to the nearest 100.

The answer would be 600 because 0-4 goes down and 5-9 goes up,

and in  this number 5 goes up so the answer would be rounded up.

If the question said round 560 to the nearest 10 then the answer would be the same because the second digit is 0 and 0 goes down so it does not make any difference. If the second digit goes down then you do not need to change your answer the answer would be the same as the question number.

The volume of the rectangular prism is V = 936 cm³

The volume of the rectangle is given by the product of the length of the rectangle and the width of the rectangle and the height of the rectangle

Volume of Rectangle = Length x Width x Height

Volume of Rectangle = Area of Rectangle x Height

Given data ,

To find the volume of the figure, we need to calculate the volumes of the two rectangular prisms separately and then add them together.

The volume of a rectangular prism is given by the formula:

Volume = length x width x height

For the first prism:

Length = 12 centimeters

Width = 9 centimeters

Height = 2 centimeters

Volume of first prism = 12 cm x 9 cm x 2 cm = 216 centimeters³

For the second prism:

Length = 10 centimeters

Width = 9 centimeters

Height = 8 centimeters

Volume of second prism = 10 cm x 9 cm x 8 cm = 720 centimeters³

Now, we add the volumes of the two prisms together to get the total volume of the figure:

216 cubic centimeters + 720 cubic centimeters = 936 centimeters³

Hence , the rectangular prism has volume of 936 cm³

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Answer:

Answer is 0.65

Step-by-step explanation:

Answer: 13/20

Step-by-step explanation:

Answer:

[tex]3.52 \times 10^{-9} = 3.52 \times 10^{-7}\%[/tex] probability that all the 15 students selected are girls

Step-by-step explanation:

The selection is from a sample without replacement, so we use the hypergeometric distribution to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

All girls from the first group:

20 students, so [tex]N = 20[/tex]

10 girls, so [tex]k = 10[/tex]

5 students will be selected, so [tex]n = 5[/tex]

We want all of them to be girls, so we find P(X = 5).

[tex]P_1 = P(X = 5) = h(5,20,5,10) = \frac{C_{10,5}*C_{10,5}}{C_{20,5}} = 0.0163[/tex]

All girls from the second group:

20 students, so [tex]N = 20[/tex]

5 girls, so [tex]k = 5[/tex]

5 students will be selected, so [tex]n = 5[/tex]

We want all of them to be girls, so we find P(X = 5).

[tex]P_2 = P(X = 5) = h(5,20,5,5) = \frac{C_{5,5}*C_{15,5}}{C_{20,5}} = 0.00006[/tex]

All girls from the third group:

20 students, so [tex]N = 20[/tex]

8 girls, so [tex]k = 8[/tex]

5 students will be selected, so [tex]n = 5[/tex]

We want all of them to be girls, so we find P(X = 5).

[tex]P_3 = P(X = 5) = h(5,20,5,8) = \frac{C_{8,5}*C_{12,5}}{C_{20,5}} = 0.0036[/tex]

All 15 students are girls:

Groups are independent, so we multiply the probabilities:

[tex]P = P_1*P_2*P_3 = 0.0163*0.00006*0.0036 = 3.52 \times 10^{-9}[/tex]

[tex]3.52 \times 10^{-9} = 3.52 \times 10^{-7}\%[/tex] probability that all the 15 students selected are girls

Answer:

B. x = 8√3 ≈ 13.86; y = 8

Step-by-step explanation:

✔️Find x using trigonometric ratio:

Reference angle = 60°

opposite = x

Hypotenuse = 16

Thus:

Sin(60) = x/16

16*sin(60) = x

16*√3/2 = x

8√2 = x

x = 8√3 ≈ 13.86

✔️Find y using Pythagorean Theorem:

y² = 16² - (8√3)²

y² = 256 - 192 = 64

y = √64

y = 8

Answer:

Step-by-step explanation:

The solution is the coordinates of the point where the lines intersect: (3,5)

Answer:

$9 and $12

Step-by-step explanation:

Let "s" be small boxes and "L" be large boxes.

12*s + 6*L = $180

3*s + 2*L = $51

From the first equation:

L = ($180 - 12*s) / 6 = $30 - 2*s

Plug that into 2nd equation:

3*s + 2*($30 - 2*s) = 3*s + $60 - 4*s = $51

s = $9

L = $30 - 2*s = $30 - $18

L = $12

Answer:

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Answer:

Algunos tipos de fuentes primarias son:

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ESPERO QUE TE HAYA SIDO DE AYUDA.

Answer:

Step-by-step explanation:

When the exponent is attached to the trig function like that, its essentially the same thing as taking the entire function to that power.

tan^2(x) = (tanx)^2

Answer:

1/6

Step-by-step explanation:

Answer:

You are right I am pretty sure

9514 1404 393

Answer:

  x = -3

Step-by-step explanation:

The solution to the equation ...

  f(x) = g(x)

is the x-value where the functions have equal values. That is the x-coordinate of the point where the graphs intersect. The intersection point is (-3, 5), so the solution to the equation is x = -3.

Answer:

Combine the constant terms by adding 7 and –2.  

Combine the like variable terms by adding the coefficients.

5 k and negative 3 k are like variable terms.

The constants 7 and –2 are like terms.

The equivalent expression is 5 + 2 k + n.  

Step-by-step explanation:

Given

[tex]7 + 5k - 2 - 3k + n[/tex]

Required

Select right steps

True: The constants 7 and –2 are like terms.

True: Combine the constant terms by adding 7 and –2.

[tex]7 + 5k - 2 - 3k + n[/tex]

[tex]- 2+7 + 5k - 3k + n[/tex]

[tex]5 + 5k - 3k + n[/tex]

True: Combine the like variable terms by adding the coefficients.

[tex]5 + 5k - 3k + n[/tex]

[tex]5 + 2k + n[/tex]

True: The equivalent expression is 5 + 2 k + n.

Answer:

it is 4/5 because you have to divide by 6

A. Cung Pi is correct. I hope this helps!

Answer:

5 = B, 13

and 6 = D, 18.4

Step-by-step explanation:

Hope it helps...

-5 to 0 is 5 degrees

0 to 27 is 27 degrees

Total change = 5 + 27 = 32 degrees.

Answer:

Since an equilateral triangle has all three side equal then one of its side is 38mm

The length of one of the sides of the triangle is 38 mm.

The perimeter of a form is the space surrounding its edge. Find the perimeter of various forms by summing the lengths of their sides.

Given that all of the sides of an equilateral triangle are equal in length, we may calculate the length of a side by dividing the perimeter by the triangle's total number of sides, which is 3.

As a result, the equilateral triangle's one side has the following length:

114 mm / 3 = 38 mm

Therefore, the equilateral triangle's sides are each 38 mm long.

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Answer:

No. It is not possible.

Step-by-step explanation:

No, that is not possible.

The problem lies in that [tex]a=b[/tex].

Looking at your fourth line of work, [tex](a+b)(a-b)=b(a-b)[/tex]

You divided by [tex](a-b)[/tex].

And because [tex]a=b[/tex], [tex]a-b=0[/tex]

This means that when you divided by [tex](a-b)[/tex] you divided by zero, which cannot happen.