What is the surface area? I need help help

Answer:

[tex]\tan D=\frac{7}{4},\\\\\sin D=\frac{7}{8.1}, \\\\\cos D=\frac{4}{8.1}, \\\\GI=5.0[/tex]

Step-by-step explanation:

In any right triangle, the following is true:

The sine of any angle is equal to its opposite side divided by the hypotenuse of the triangle. (o/h)

The cosines of any angle is equal to its adjacent side divided by the hypotenuse. (a/h)

The tangent of any angle is equal to its opposite side divided by its adjacent side. (o/a)

Thus,

[tex]\text{3. }\\\tan D=\frac{7}{4},\\\\\sin D=\frac{7}{8.1}, \\\\\cos D=\frac{4}{8.1},[/tex]

[tex]\text{4. }\tan 68^{\circ}=\frac{GI}{2},\\GI=2\tan68^{\circ}=4.95017370683\approx \boxed{5.0}[/tex]

Answer:

y = 4x+3x^2

Step-by-step explanation:

For an equation to be linear, x must have a power of 1

y = 4x+3x^2 has a power of x that is not x  ( x^2) so this is not linear  ( it is quadratic)

Answer:

See Explanation

Step-by-step explanation:

Required

Expression for area of triangle

This is calculated using

[tex]Area = \frac{1}{2} * base * height[/tex]

Assume that:

[tex]base = 5cm; height = 2cm[/tex]

The equation becomes

[tex]Area = \frac{1}{2} * 5* 2[/tex]

Answer:

See Explanation

Step-by-step explanation:

Given

The three equations

Required

Label the x and y-axes

The general rule is to place the independent variable (x) on the x-axis and the dependent (y) on the y-axis.

What x and y represented are always stated after writing the equation.

So, we have:

[tex](a)\ y = x + 5[/tex]

[tex]x \to[/tex] Number of chores

[tex]y \to[/tex]Amount

[tex](b)\ y =15x[/tex]

[tex]x \to[/tex] Time (hours)

[tex]y \to[/tex]Miles traveled

[tex](c)\ y = 6x[/tex]

[tex]x \to[/tex] Time (hours)

[tex]y \to[/tex]Miles traveled

Answer:

C

Step-by-step explanation:

because it is two sets of -5

Answer:

4th option as it's 2 × -5

so we'll jump -5 from zero 2 times and end up at - 10

Answer:

1.725 mph

There are 5280 feet in a mile, so you divide by that and get 12.075. Since it's seven hours, you divide by 7 and get 1.725.

Answer: 9108

Step-by-step explanation: To solve ur problem u hsd to do 63756 divided by 7 to find out how much sam ran per hour. I hope it helps u! ItzofficallySriSri signing off!

The mean absolute deviation of the data in the image given is: 1.5.

The mean absolute deviation can be described as the average distance between each data value of a data set and its mean.

Thus:

Let's find the average of the data set:

Each data in the data set are 7, 2, 4, 3.

Mean = (7 + 2 + 4 + 3)/4

Mean = 4

Therefore:

Mean absolute deviation = (|x1 - mean| + |x2 - mean| + ...)/N

(|x1 - mean| + |x2 - mean| +...) = (|7 - 4| + |2 - 4| + |4 - 4| + |3 - 4|) = 6

N = 4

Thus:

Mean absolute deviation = 6/4 = 1.5

Therefore, the mean absolute deviation of the data in the image given is: 1.5.

Learn more about mean absolute deviation on:

https://brainly.com/question/17381861

Answer:

1.5 i did it on khan

Step-by-step explanation:

Answer:

28.26

Step-by-step explanation:

Circumference= 2 pi x r

Diameter= 9 (double the radius)

Radius= 4.5

Pi= 3.14

2 x 3.14= 6.28

6.28 x 3.14= 28.26

:D

Answer:

f(x) -0 over the interval (-, -4)

Step-by-step explanation:

Answer:  T=1700

Step-by-step explanation:

The answer will be option D. -6

Answer:

20

Step-by-step explanation:

You can write the equation x+(3x+1)+(x-11)=90 and then isolate x

x+(3x+1)+(x-11)=90

5x-10=90 (combine like terms)

5x-10+10=90+10 (add 10, addition property of equality)

5x=100

5x/5=100/5 (divide by five, division property of equality)

x=20

9514 1404 393

Answer:

  156°   or   13π/15 radians

Step-by-step explanation:

156 times 1° is 156°.

In radians, the angle measure is (156°)(π/180°) = 13π/15 radians.

Answer:

9.57m

Step-by-step explanation:

Answer:

Other person's wrong, I tried their answer. It's actually 9.6. They would've been right but they rounded to the nearest HUNDREDTH. Not tenth.

Answer:

4670

Step-by-step explanation:

that is the workings above

If the third term is 8 and eighth term is 143 then the sum of first 20 terms is 4210.

Arithmetic progression is a sequence in which all the terms have equal differences. Nth term will be a+(n-1)d in which a is first term, d is difference and n is number of term.

We have been given that third term is 8 and eight term is 143 and we have to calculate the sum of first 20 terms.

[tex]A_{3}[/tex]=a+(3-1)d

8=a+2d-----1

[tex]A_{8}[/tex]=a+(8-1)d

143=a+7d---2

Subtract equation 1 from equation 2.

a+7d-a-2d=143-8

5d=135

d=27

Put the value of d in equation 1.

a+2d=8

a+2*27=8

a+54=8

a=-46

We know that,

[tex]S_{n}[/tex]=n/2[2a+(n-1)d]

=20/2[2*(-46)+(20-1)*27]

=10(-92+19*27)

=10(-92+513)

=10*421

=4210

Hence if the third term is 8 and eighth term is 143 then the sum of first 20 terms is 4210.

Learn more about arithmetic progression at https://brainly.com/question/6561461

#SPJ2

Step-by-step explanation:

I take gas consumption as example.

Consider the followings,

Let M be the gas meter reading per month

A be the fuel adjustment fee

B be monthly maintenance fee

Y be unit cost per Joule

Let X be monthly bill

( 1 meter reading unit = 48 unit of Joule )

Monthly bill payment :

X = Mx48xY + A + B

in function notation, the monthly bill is f(M, Y, A, C)

Answer:

732,421,875

Step-by-step explanation:

You have to find the pattern which in this case is just multiplying by 5 every absolute number. the negatives are only every other one. from knowing this you just have to find all the numbers until 13 and the 13th term in this sequence is 732,421,875

9514 1404 393

Answer:

  9°, 9°, 162°

Step-by-step explanation:

Let x represent the measure of the first angle. Then the sum of all of the angles in the triangle is ...

  x + x + 9(x+x) = 180°

  20x = 180° . . . . . . . . . . collect terms

  x = 180°/20 = 9° . . . . . divide by 20

  9(x+x) = 162° . . . . . . . find the third angle

The three angle measures are 9°, 9°, and 162°.

Answer:

Step-by-step explanation:

the given figure is rectangle

area of rectangle=l*b

=5*6

=30 ft^2

Answer:

Area = 30 ft²

Step-by-step explanation:

This figure is a rectangle, therefore;

Area of a rectangle = B*W

A = 5*6

A = 30

Therefore the area of the given rectangle is 30 ft²

Hope this helps!

Answer:

21

Step-by-step explanation:

Volume of a cuboid is given by

V = l*w*h

924 = 4 (x+1) (x+11)

FOIL

924 = 4(x^2 +11x+x+11)

924 = 4(x^2+12x+11)

Divide each side by 4

231 = (x^2+12x+11)

Subtract 231 from each side

0 = x^2 +12x +11-231

0 = x^2 +12x - 220

Factor

0 = (x+22) (x-10)

Using the zero product property

x+22 =0  x-10 =0

x=-22  x=10

We cannot have a negative length

x=10

The side lengths are 4, 10+1, 10+11

4,11,21

The longest is 21

Answer:

yeah boy

Step-by-step explanation:

They cover 252

they cover up the wall

Answer:

Melissa

Step-by-step explanation:

Melissa: 18/20

Tom: 85/100

Find the common denomenater so multiply 18*5 and 20*5

Melissa: 95/100

95>85

Melissa has the greater mark

Answer:

(-0.5, -1)

Step-by-step explanation:

A turning point is a point of the graph where the graph changes from increasing to decreasing (rising to falling) or decreasing to increasing (falling to rising)

Answer and Step-by-step explanation:

The answer is 2 (which is equal to x).

If you were to plug 2 in to the function, the result if 30.

[tex]x^{3}+ 6x^{2} -x\\\\\\\\(2)^3+6(2)^2 - 2 = 30 = f(2)[/tex]

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