I dont understand this question at all, please answer w/ explanation if you can

Answer:

Step-by-step explanation:

[tex]\sf Sin \ F = \dfrac{Opposite \ of \ angle \ F}{hypotenuse}[/tex]

       [tex]= \dfrac{9}{18}\\\\= 0.5[/tex]

    [tex]F = Sin^{-1} \ (0.5)\\[/tex]

        = 30°

Answer:

where is the diameter?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

9 inches

Step-by-step explanation:

Convert from feet to inches by multiplying by 12:

3*12 = 36

Multiply by the scale factor of 1/4:

36*1/4 = 9

9 inches

Answer:

0.8

Step-by-step explanation:

Hope this helps!

Answer:

2916 square inches

Step-by-step explanation:

Surface area of rectangular prism:

Here, area of the top of the prism is not included.

l = 24 in ; b = 20 in ; h = 16 in

Surface area = lb + 2bh + 2lh

                    = 24 * 20 + 2*20*16 + 2*24 *16

                    = 480 + 640 + 768

                    = 1888 sqaure inches

Surface area of triangular prism:

length = 24 in ; a = b = 16 in  ;  base = 20 in and height = 13 in

[tex]\sf \text{Base area=$2*\dfrac{1}{2}*base *height = base *height$}[/tex]

                = 20 * 13

                  = 260 square inches

Surface area = length*(a +b) + base area

                     = 24*(16+16) + 260

                     = 24 * 32 + 260

                      = 768 + 260

                      = 1028 square inches

Surface area of composite figure = 1888 + 1028

                                                          = 2916 square inches

Answer:

16

Step-by-step explanation:

6 percent of 15= 0.9

0.9*18≈16

Answer:

10x20+10x6=260

Step-by-step explanation:

Answer:

260 cm²

Step-by-step explanation:

Area of the rectangle

= l × w

= 20 × 10

= 200 cm²

Area of the triangle

= ½bh

= ½ × 20 × 6

= ½ × 120

= 60 cm²

Area of the total figure

= Area of the rectangle + Area of the triangle

= 200 cm² + 60 cm²

= 260 cm²

________

Hope it helps ⚜

Answer:

x = 5

Step-by-step explanation:

Well all you have to do is use this formula

75 + 36x -3 = 180

How did I figure that out?? Well I know that the angle next to 75 is the same as 36x-3 becuase that are alternate interior angles and 75 and 36x-3 would be a linear pair meaning that the product of the them would be 180, Thus making the formula

Now all you have to do is combine like terms:

75 -3 = 72

72 + 36x = 180

subtract 72 from both sides

72 -72 = 0

180- 72 = 108

36x = 108

divide both sides by 36

X= 5

Answer:

≈11.7 [ft].

Step-by-step explanation:

1) the ladder and the wall form the right triangle, where the length of the ladder (12 ft) is hypotenuse and the distance between the base of the latter and the base of the wall is the shortest side.

2) the longest side can be calculated according the Pythagoras theorem:

[tex]L=\sqrt{12^2-2.8^2}=\sqrt{136.16}=11.7[ft].[/tex]

Step-by-step explanation:

(58.29+7.26)÷5

= 59.7

159⅕ = -

root[(3.7+2.5)²+(4.2+3.1)²]

= root[(6.2)²+(7.3)²]

= root[38.44 + 53.29]

= root91.73

~ 10

The line which is parallel to the line 2x + 5y =8 is  [tex]y= -\frac{2}{5} x+4[/tex]  .

The correct option is (B) [tex]y= -\frac{2}{5} x+4[/tex]

If the lines are parallel, there is no solution for the pair of linear equations. If there is no solution of the given pair of linear equations, the equations are called inconsistent.

As we know the condition for two parallel line given by the equation

[tex]a_1 x+b_1y+c_1=0\\a_2x+b_2y+c_2= 0[/tex]

is:

[tex]\frac{a_1}{a_2} \; = \; \frac{b_1}{b_2}[/tex]  ≠ [tex]\frac{c_1}{c_2}[/tex]

We have the given equation as 2x + 5y =8

the equation which is parallel to 2x + 5y= 8 be

B)  [tex]y= -\frac{2}{5} x+4[/tex]

5y = -2x +20

2x+5y=20

So, it satisfies the condition [tex]\frac{a_1}{a_2} \; = \; \frac{b_1}{b_2}[/tex]  ≠ [tex]\frac{c_1}{c_2}[/tex]

Rest of the equation aren't  satisfying  the condition   [tex]\frac{a_1}{a_2} \; = \; \frac{b_1}{b_2}[/tex]  ≠ [tex]\frac{c_1}{c_2}[/tex].

Hence the line parallel to 2x+ 5y =8 is  [tex]y= -\frac{2}{5} x+4[/tex].

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Answer:

Si se multiplica un numero por uno, obtendras el numero original, por ejemplo 54x1 = 54, y 2x1= 2.

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

15+2=17

20-17=3

So, these three people definitely like lemonade

11-3=8

So, eight people like both coffee and lemonade

15-8=7

Ans: 7 people like coffee but not lemonade

Answer:

43 mph

Step-by-step explanation:

1 day = 24 hours

3 days = 3 × 24 hours = 72 hours

The car taveled 3106 miles in 72 hours.

average speed = distance/time

average speed = (3106 miles)/(72 hours)

average speed = 43 mph

Answer: 43 mph

Explanation:

3 days is 72 hours.

R=D/T

Divide 3106 by 72

= 43 (rounded)

The measure of the angle ∠ABC is 110° and the measure of the reflex angle ∠CBD is 70°.

Angle is the space between the line or the surface that meets.  And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.

Linear angle - If the total of two angles is 180 degrees, they are said to be linear angles.

The measure of the angle ABC will be

∠ABC = 110°

The angle ∠ABC and ∠CBD are the linear angles. Then we have

∠ABC + ∠CBD = 180°

   110° + ∠CBD = 180°

             ∠CBD = 70°

More about the angled link is given below.

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Answer:

$10

Step-by-step explanation:

"Initial" here means "beginning."  That is, time = x = 0.  If we let x = 0 here we get c(0) = 10, which is the desired answer.  Juan's initial investment was $10.

Answer:

9   23   23

Step-by-step explanation:

Two sides are equal    and are  each   2x + 5    ( x = third side)

add the three sides to get 55 inches

2x + 5     +     2x+5     +  x   = 55

5x = 45

x = 9                so the sides are  9   and 23   and 23

Answer:

fail to reject the null

Step-by-step explanation:

99% confidence is equivalent to .01

the p-value is > .01 so fail to reject the null

if it was < .01 you would reject the null

Answer:

See below :)

Step-by-step explanation:

If you want a missing angle or side in one pair, and you have at least one side and angle pair, use the sine rule.

If you want a remaining side, and you have the other two sides and the angle opposite the unknown side, use the cosine rule.

If you want an angle, and you have all three sides, use the cosine rule rearranged for angles.

I attached a picture to help explain better :)

The error which Loren made was C. she should have solved 149 = startfraction 19 over 9 endfraction (10) b for b.

This refers to those miscalculations or misjudgments about a situation or a mathematical solution to give wrong values.

Hence, because Loren is solving an equation of 0 = startfraction 19 over 9 endfraction (149) b for b to find the equation of a trend line that passes through the points (1, 130) and (10, 149), the error she made was option C.

This means that using point (10,149) which takes the form (x,y) the equation will be: 149=19/9(10)+b

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Answer:

C

Step-by-step explanation:

Answer:

C. 10.99

Step-by-step explanation:

i took the test

Answer:

C. 10.99

Step-by-step explanation:

usatest prep

Answer:

[tex]g(-3)=7[/tex]

[tex]g(0)=7[/tex]

[tex]g(5)=\dfrac15[/tex]

Step-by-step explanation:

[tex]g(x) =\begin{cases}7 & \text{if } x \leq 0 \\ \\\dfrac{1}{x} & \text{if } x > 0\end{cases}[/tex]

This means:

[tex]\implies g(-3)=7[/tex]

[tex]\implies g(0)=7[/tex]

[tex]\implies g(5)=\dfrac15[/tex]

[tex]\sf\f(x)=\grey{\begin{cases}\rm 7\quad ,x\geqslant 0\\ \rm \dfrac{1}{x}\quad ,x>0\end{cases}}[/tex]

So

Hence

Answer: 18.84

Step-by-step explanation: Circumference is calculated as 2 × 3.14 × radius

Answer:

Segment AD is 4 units long, while segment BC is 5 units long. If this figure was a parallelogram, these two segments would be equal to each other.

Step-by-step explanation:

The probability that Ned will choose 2 red shirts randomly from the box is 1/35.

It is a branch of mathematics that deals with the occurrence of a random event.

The probability of choosing 2 red shirts randomly from the box can be calculated using the formula for probability of independent events:

P(choosing 2 red shirts) = P(choosing 1st red shirt) × P(choosing 2nd red shirt after 1st red shirt has been removed)

The probability of choosing the first red shirt is 3/15 (since there are a total of 15 shirts in the box, of which 3 are red).

After one red shirt is removed, there will be 2 red shirts and 14 shirts remaining in the box.

Therefore, the probability of choosing the second red shirt is 2/14.

P(choosing 2 red shirts) = (3/15) * (2/14) = 1/35

Therefore, the probability that Ned will choose 2 red shirts randomly from the box is 1/35.

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Answer:

Which of the following is a scalar quantity, and not a vector?

Temperature

Step-by-step explanation:

Force: The interaction which after applying on a body changes or try to change the state of rest or state of motion is called force.

It is a vector quantity.

Temperature: The measurement of hotness is called temperature.

It is a scalar quantity.

Scalar quantities: The physical quantities which have only magnitude and no direction are

called scalar quantities or scalars.

Examples: Mass, volume, density, time, temperature, electric current, Luminious intensity, etc. Vector quantities: The physical quantities which have both magnitude and direction and obey

the laws of vector addition are called vector quantities or vectors.

Answer:

105 cm²

Step-by-step explanation:

Properties of a quadrilateral circumscribed about a circle

Given:

Therefore, the sum of the other pair of opposites is also 21 cm.

So the perimeter = 21 + 21 = 42 cm

[tex]\implies \sf Area=\dfrac12\cdot42\cdot5=105\:cm^2[/tex]

Looking like trapezoid

area:-

Answer:

B. 0.14

Step-by-step explanation:

Just add the values in the eight row and truck coloum and divide by 200.