I need help with 15.) 17.) and 19.) I have attached the answers I just need help with how to solve them

Answer:

-125

Step-by-step explanation:

Twice a number is x*2

x*2 = 500 + x*6

=> x = -125

Answer:

320

Step-by-step explanation:

38-14=24:2=12

12x 16:2=128x2= 256

14 x 16 =224+256= answer 320

Answer:

  (c)  416 cm²

Step-by-step explanation:

The area of a trapezoid is given by the formula ...

  A = 1/2(b1 +b2)h

where b1 and b2 are the lengths of the parallel bases, and h is the perpendicular distance between them.

__

Using the given dimensions, the area is found to be ...

  A = 1/2(14 cm +38 cm)(16 cm) = (1/2)(52 cm)(16 cm) = 416 cm²

The area of the figure is 416 cm².

Answer:

make me brinliest

Step-by-step explanation:

he sai that evolution occurs because of changes during lifetime passed onto offspring

Answer:

slope = (y₂ - y₁) / (x₂ - x₁)

18-9/-10-10

=9/0

The slope is undefined and it is a vertical line.

Step-by-step explanation:

OR

since x₂ , x₁ are the same value -10 the slope is undefined.

Answer:

x is 3 values that sum to at least 23

Step-by-step explanation:

Answer: according to my calculator, the answer is 8.5714285714286 i hope this is correct lol,

Step-by-step explanation: Hope this helps ^_^

Answer:  [tex]z \ge -10[/tex]

Reason: The graph shows all values that are z = -10 or larger.

The closed endpoint at -10 indicates we include it with an "or equal to".

If it was an open hole endpoint, then we'd say z > -10 instead.

Answer:

It depends on how many students there are in Mr. Edwards class

Step-by-step explanation:

Answer:

h = 21

n = 60

p = 7

1/2 is equal to 0.5. If we multiply this amount by 2, then we get 1. There are 2 halves in a whole.

Answer:

There are 2 halves in a whole. If you split 1 in 2 you get 0.5, or 1/2.

Answer:

[tex]y =\dfrac{12}{5}x + 22[/tex]

Step-by-step explanation:

Slope-intercept form of line:

First find the slope of the line AB. ie, m

Slope of the perpendicular line = -1/m

(2 , 3)  ⇒ x₁ = 2 & y₁ = 3  

(-10, 8)  ⇒ x₂ = -10 & y₂ = 8

[tex]\boxed{Slope=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]

          [tex]= \dfrac{8-3}{-10-2}\\\\=\dfrac{5}{-12}\\\\=\dfrac{-5}{12}[/tex]

[tex]\sf slope \ of \ the \ perpendicular \ line \ m_1 = \dfrac{-1}{m}= -1 \ \div \dfrac{-5}{12}[/tex]

                                                   [tex]\sf = -1 * \dfrac{12}{-5}=\dfrac{12}{5}[/tex]

Equation of the required line: y = mx + b

       [tex]y =\dfrac{12}{5}x+b[/tex]

The line passes through (-5 , 10). Substitute in the above equaiton,

         [tex]10 =\dfrac{12}{5}*(-5) + b\\\\ 10 = (-12) + b\\\\[/tex]

 10 + 12 = b

        b   = 22

Equation of the line:

  [tex]y =\dfrac{12}{5}x + 22[/tex]

Answer:

Step-by-step explanation:

44/2 is 22

84/3 is 28

Patrick Mahomes can throw more yards/sec

The length of the hypotenuse AB is equal to the sum of the square of other two sides AC and BC. The measure of the curve DE is 10.5 units

The theorem states that the length of the hypotenuse AB is equal to the sum of the square of other two sides AC and BC.

According to the theorem;

AB^2 = AC^2 + BC^2

AB^2 = 6^2 + 8^2

AB^2 = 36 + 64

AB = 10

If the curve DE is 5% longer than line segment АВ, the measure of curve DE is given as;

DE = 1.05 * 10
DE = 10.5

Hence the measure of the curve DE is 10.5 units

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Explanation:

The arc markings for each angle show that we have two pairs of congruent angles (angle O = angle Q, angle M = angle R). This takes care of the two "A"s in "ASA". The tickmarks show us that the sides MO and RQ are the same length, so this takes care of the "S" of "ASA". Note the congruent sides are between the angles mentioned. The order is important.

Answer:

Shown in the photo

Step-by-step explanation:

I just followed the steps. If you need more help let me know :)

Answer: Dilate △ABC by a scale factor of 2 centered at the origin, then rotate the result 180∘ about the origin.

Step-by-step explanation:

Answer:

1. y=3x

2. equal to

Step-by-step explanation:

1. The equation of the line is y=3x because the line has a y-intercept of zero and a slope of 3.

2. The y-intercept of the line on the graph is -2. The y-intercept of  y=2x-2 is also -2. So, the two y-intercepts are equal to each other.

Answer: 15 and 26

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Distance formula- √(x2-x1)² + (y2-y1)²

Step 1: Plug in your values.

√(4a-a)² + (0-(-2b)²

Step 2: Substitute

√(3a)² + (2b)²

It cannot be simplified anymore, so your answer is:

B (√(3a)² + (2b)²)

(Please give brainliest if it helps!)

The likelihood that a correlation exists in a population, based on knowledge of the actual value of r in a sample from that population is the statistical significance

Answer:

If the question is [tex]2x^{2} -18x+65[/tex] then the answer is no real solution. If the question is 2x - 18x + 65 than the answer is -16x+65

Answer:

x = 13, 5

Step-by-step explanation:

x² - 18x + 65 = 0

step 1: multiply (1) and (65) together

step 2: find two negative numbers to add together to equal -18 but multiply together to equal 65.

step 3: since there isn't a number in front of x² you could:

(x - 13) (x - 5)

x - 13 = 0           x - 5 = 0

   +13  +13            +5   +5

x = 13                      x = 5

or

(x² - 13x) (-5x + 65)

x(x - 13) -5 (x - 13)

(x - 13) (x - 5)

x - 13 = 0      x - 5 = 0

  +13   +13       +5   +5

x = 13, 5

I hope this helps!

rad 128 can be broke into 64*2

square root of 64 is 8, times -5,

which leaves -40rad2

Answer:

3

Step-by-step explanation:

0.1 rounds to 0 and 0.04 also rounds to zero. Therefore, the answer is 3.

The formula for the area of the triangle is A = 1/2bh (1/2•base•height).

Identify your base and height and substitute them into the formula. Since you did not include an image or info in which states the base and height, this is what I can say.

If the base and height are 5 and 12, the area would be 30 yds. (1/2 x 5 x 12)

If the base and height are 5 and 16, the area would be 40 yds. (1/2 x 5 x 16)

If the base and height are 12 and 16, the area would be 96 yds. (1/2 x 12 x 16)

Answer:

Hello there! 10 square of 3

Answer:

x = 5

  or

x = 3

Step-by-step explanation:

The first term is,  x2  its coefficient is  1 .

The middle term is,  -8x  its coefficient is  -8 .

The last term, "the constant", is  +15

Step-1 : Multiply the coefficient of the first term by the constant   1 • 15 = 15

Step-2 : Find two factors of  15  whose sum equals the coefficient of the middle term, which is   -8 .

     -15    +    -1    =    -16

     -5    +    -3    =    -8

If the equation x²−8x−5=0 can be transformed into the equation (x−p)²=q, then value of q is 21

Two or more expressions with an Equal sign is called as Equation.

To transform the equation x² - 8x - 5 = 0 into the equation (x - p)² = q, we need to complete the square by adding and subtracting a constant term.

First, let's add 5 to both sides to get:

x² - 8x = 5

Applying complete square method

we need to add and subtract 16 inside the parentheses on the left-hand side:

x² - 8x + 16 - 16 = 5

Simplifying the left-hand side gives us:

(x - 4)² - 16 = 5

Adding 16 to both sides gives us:

(x - 4)² = 21

Therefore, the value of q is 21.

To learn more on Equation:

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Newton's Law of Gravitation:

Statement: According to this law, when two mass bodies are separated at finite distance then there must be an attractive force experience by them which is directly proportional to the product of their masses and inversely proportional to the square of their separation.

Consider two mass bodies m1 & m2 be kept at distance d. Then the force of attraction F is given as

                            [tex]Fam_{1}.m_{2}[/tex]

                                 [tex]Fa1/d^2[/tex]

Now, from above equations, we have

                          [tex]Fa\frac{m_{1}m_{2}}{d^2}[/tex]

or,                           [tex]F=G\frac{m_{1}m_{2}}{d^2}[/tex]

Here         [tex]G=6.67*10^{-11}Mm^2kg^{-2}[/tex]   is the universal gravitational constant.

Answer:

She has earned $1980.90 in interest.

Step-by-step explanation:

Since we know that she deposited $3100 9 years ago, we know we have to find the amount of interest she gets per year times 9. So $3100*0.071 = $220.10 and then $220.1*9 = $1980.90. Therefore, she has earned $1980.90 in interest.

Answer:

The answer is 1980.9

Step-by-step explanation:

Formula is PxRxT

P=Princlple(Amount of money desposited)

R=Rate the rate in deciaml form. Example: 7.1=0.071

T=Time

SI=3100x0.071x9=1980.9

       P       R     T