what are all of the steps to get 7(3x-1)-(x+5)

Answer the answer is a 15.81

Step-by-step explanation:

Answer:

the answer is 86ft

Step-by-step explanation:

The height of the kite above the ground is 86 feet.

Trigonometric ratio is used to show the relationship between the sides of a triangle and its angles.

Let h represent the height of the kite. Hence, using trigonometric ratios:

sin(36) = h / 140

h = 82.28 feet

Kite height above ground = 3.75 + 82.28 = 86 feet

Therefore the height of the kite above the ground is 86 feet.

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Answer:

A is ur answer

Answer:

1= e

2= c

Step-by-step explanation:

Answer:

c).    14 < x < 15

d).    7 < x < 8

Step-by-step explanation:

c).   (x/3)^3 = 124

Take the cube root of both sides

x/3 = 4.986630952238646

multiply both sides by 3

x = 14.959892856715938

14 < x < 15

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

d). (x/2 - 1)^3 = 25

Take the cube root of both sides

x/2 - 1 = 2.924017738212866

Add 1 to both sides

x/2 = 3.924017738212866

multiply both sides by 2

x = 7.848035476425732

7 < x < 8

Answer:

1500 ft^3

Step-by-step explaxition

To find the volume of rectangular prism the formual is L*W*H. So you do 5 times 10 times 30 to get 1500 ft^3

Answer:

D is the answer

Step-by-step explanation:

Answer:

7.5

Step-by-step explanation:

You will use the 2.5 not the 3 as height.

Area of trapezoid=( A+b/2)*h

(2+4/2)*2.5

(6/2)*2.5

3*2.5

7.5

Answer:

x <3

Step-by-step explanation:

–2(5 – 4x) < 6x – 4

Distribute

-10 +8x < 6x-4

Subtract 6x from each side

-10+8x-6x < 6x-6x-4

-10 +2x < -4

Add 10 to each side

-10+2x+10 < -4+10

2x< 6

Divide by 2

2x/2 < 6/2

x <3

Answer:

it will be -3

Step-by-step explanation:

[tex]\green{hello} [/tex]

-3 is the correct option

Answer:

Step-by-step explanation:

x^2 + 2x - 3 =0

x^2 + 3x - x -3 = 0

(x) x (x+3) - (x + 3) = 0

(x+3) x (x-1) = 0

x+3=0

x-1=0

x=-3

x=3

x1 =-3, x2 = 1

Answer:

[tex]x=1,\\x=-3[/tex]

Step-by-step explanation:

The quadratic formula is given by [tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex], where [tex]x[/tex] represents both real and nonreal solutions to a quadratic in standard form [tex]ax^2+bx+c[/tex].

Thus, with the given quadratic [tex]x^2+2x-3[/tex], we can assign values:

Substituting in these values to the quadratic formula, we have:

[tex]x=\frac{-2\pm\sqrt{2^2-4(1)(-3)}}{2(1)}, \\\\x=\frac{-2\pm\sqrt{16}}{2},\\\\x=\frac{-2\pm 4}{2},\\\\\begin{cases}x=\frac{-2+4}{2},x=\frac{2}{2}=\boxed{1}\\x=\frac{-2-4}{2},x=\frac{-6}{2}=\boxed{-3}\end{cases}[/tex]

Verify by factoring:

[tex]x^2+2x-3=0,\\(x+3)(x-1)=0,\\\begin{cases}x+3=0,x=\boxed{-3}\:\checkmark\\x-1=0,x=\boxed{1}\:\checkmark\end{cases}[/tex]

Answer:

the value of X is 12 .........

Answer: x = 8, y = 2, coordinates (8,2)

Step-by-step explanation:

2x = 4y + 8 (divide by 2 to get value of x)

x = 2y + 4

(now substitute x into the second equation to find value of y)

2y + 4 - 2y = 4

2y - 2y = 4 - 4 (divide by 2 to get value of y)

y - y = 2 - 2

y = 2

Now plug in value of "y" to get value of "x".

x - 2(2) = 4

x - 4 = 4

x = 8

Coordinates (8,2)

Answer:

The answer is most likely C.

Step-by-step explanation:

Using the Pythagoras' Theorem, c^2 = a^2 + b^2

I'm not sure if 242 and 262 were 24^2 and 26^2 respectively but I'm using 24^2 and 26^2 for this answer.

The c^2 is in fact x^2 where x is the hypotenuse.

However, the answer could be A if x has to be whole number. In this case, x^2 + 24^2 = 26^2

x^2 = 26^2 - 24^2 = 100

x = sqrt (100) = 10

Answer:

Step-by-step explanation:

4x^2+120x

4x^2+120x=0

4x^2=-120x

4x^2/x=-120

4x=-120

x=-120/4

x=-30

Answer:

3 5/12

Step-by-step explanation:

Answer:

41/12 gallons

= 3 5/12 gallons

Step-by-step explanation:

Since it can hold 8 1/4 gallons and currently has 4 5/6 gallons, you subtract.

You need to get the common denominator to subtract cleanly so we can turn the fractions into improper fractions.

8 1/4 = 33/4 because 8 is equal to 8 full 4/4ths so multiply 8 by 4 and add 1 for the remaining 1/4.

Then 4 5/6 becomes 29/6 with the same concept earlier.

So we can change the denominator to 12 on both fractions (33/4 and 29/6) so we can subtract.

33/4 becomes 99/12 because they are still equivalent, it's just that you multiplied the top and bottom by the same number.

29/6 becomes 58/12 because we multiplied the fraction by 2/2.

Those two new fractions stated previously are the same as the original because we multiplied them by 1/1, because 3/3 and 2/2 is still equal to 1/1, and the new fractions can be simplified down to the original.

Since we have 99/12 and 58/12, we can subtract cleanly into

99 - 58 = 41

So the answer is 41/12

Answer:

a= 45

Step-by-step explanation:

all angles equal 180 degrees so you take the angle given which is 45 and the other which is a right angle, or 90 degrees and subtract 45 from 90 and you get 45 so a = 45 and you add up 45 + 45 + 90 thats 180!  

Answer:

Hello There!!

Step-by-step explanation:

I think the answer is B. The probability of not drawing a club or jack from a deck of cards.

hope this helps,have a great day!!

~Pinky~

Step-by-step explanation:

C. The probability of not rolling a 4 or 7 on a die

Answer: If the corresponding angles of two triangles are not congruent, then the triangles are not congruent.

Step-by-step explanation:

If the corresponding angles of two triangles are not congruent, then the triangles are not congruent.

A contrapositive statement is when you take the original statement, "flip" it around, and write the opposite of the original statement. Here's an example:

Original statement: The grass is wet because it was raining.

Contrapositive statement: It was not raining, so the grass is not wet.

Notice how we "flipped" the original sentence around, as wrote it's "opposite".

Answer:

$11,200

Step-by-step explanation:

Just multiply the percent times the total

8% * 140000 = .08 * 140000 = 11200

Step-by-step explanation:

You can apply the power of point to this problem. Essentially, it states that:

[tex]5\cdot12=2\cdot(2+x)\\30=2+x\\x=28[/tex]

Generally the value of y would be 34 because same two square roots of n multiplying each others would equal to n by the definition.

[tex] \large \boxed{ \sqrt{a} \times \sqrt{a} = ( \sqrt{a} )^{2} = a}[/tex]

Although it is easy to predict the solution of y-value, I will be showing you how to solve the radical equation for y-term which will be useful.

[tex] \large \boxed{ \sqrt{a} \times \sqrt{b} = \sqrt{ab} }[/tex]

So from the equation, convert √34 × √y to √34y

[tex] \large{ \sqrt{34} \times \sqrt{y} = 34} \\ \large{ \sqrt{34y} = 34}[/tex]

Then we square both sides to get rid of the square root.

[tex] \large{ {( \sqrt{34y} )}^{2} = {34}^{2} } \\ \large{34y = 1156}[/tex]

Divide both sides by 34 so we can finally isolate the y-term.

[tex] \large{ \frac{34y}{34} = \frac{1156}{34} } \\ \large \boxed{y = 34}[/tex]

Hence the value of y is 34.

Answer

Answer:

16.35

Step-by-step explanation:

Using an inverse normal distribution, we can calculate the z score given the percentile, which can then be used to find our value.

First, we can use an inverse normal distribution calculator to figure out that the z score given the 75th percentile is 0.674.

Next, we know that the z score is (observed value - mean) / standard deviation. We can plug our values in to get

[tex]\frac{x-15}{2} = z\\\frac{x-15}{2} = 0.674\\x-15 = 0.674 * 2\\x = 0.674 * 2 + 15\\x= 16.348[/tex]

Rounding, we get x = 16.35 as our answer

Given:

The given function is:

[tex]f(x)=\sqrt{x-7}[/tex]

To find:

The value of x that is in the domain.

Solution:

Domain is the set of input values.

We have,

[tex]f(x)=\sqrt{x-7}[/tex]

We know that the square root is defined for non negative values. So,

[tex]x-7\geq 0[/tex]

[tex]x\geq 0+7[/tex]

[tex]x\geq 7[/tex]

Thus, the domain of the given function is all real number that are greater than or equal to 7.

In the given options 0, -3, 6 are less than 7 but 8 in option A is the only value that is greater than 7. So, [tex]x=8[/tex] is in the domain of the given function.

Therefore, the correct option is A.

Answer:

100

Step-by-step explanation:

If there are 100 birds on a tree and you shoot 1, that bird is still on the tree. So there are 100 birds.

Step-by-step explanation:

porportional means they scale by the same ratio

L / W = L_1 / W_2 = 5.4 / 2.5 = 6.21 / x

solve for x

Answer:

Not sure but heres the proportional factor.

Step-by-step explanation:

The image is blurry and is hard to make out what the number for width is. However you can find the proportionality factor between the phones by dividing the large phone height by the small phone height. So 6.21in/5.4in, you get 1.15in, this means that the larger phone is 1.15in bigger than the smaller phone. Apply this number to the width and you will find the width of the larger phone since both phones are proportional. So you do width × 1.15 to get the width of the larger phone.