Let g(x) = - 2x - 1. h(x) = - X+4. Find (h o g)(4).

Answer:

Number 7: D. 378 ft

And I'm Not Sure About The Others

Step-by-step explanation:

Answer:

question 8 : 157 m²

Step-by-step explanation:

cone volume:. π×r²×h/3

3,14×25×6/3 = 157 m²

Answer:

It's Tan.

Multiple Thumbs-up ^_^

Answer:

5 34 /34

It is A

Step-by-step explanation:

For plato users. I took the test btw

The value of the sin  [tex]\rm \theta[/tex] is given by option A.

Trigonometric Ratios are the ratios of the sides of a right angled Triangle, used to find the unknown sides and angles.

The value of the trigonometric ratio

tan  [tex]\rm \theta[/tex]= (-5/3)

The value of the angle lies in the 2nd b, 90 to 180 degree, the value of the angle is determined as follows

as tan [tex]\rm \theta[/tex] = (-5/3)

The value of perpendicular is 5, and the value of base is 3

Hypotenuse by Pythagoras theorem is

√(25 + 9)

= √34

The value of sin [tex]\rm \theta[/tex] = (5/√34)

sin  [tex]\rm \theta[/tex] = 5 * √34 / 34

The value is in second quadrant and sin is positive in second quadrant.

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Answer:

y-5 = 3/2(x-3)

Step-by-step explanation:

The point slope form of the equation of a line is

y-y1 = m(x-x1)  where m is the slope and (x1,y1) is a point on the line

y-5 = 3/2(x-3)

Answer:

[tex]\tan A = \frac{5}{8}[/tex]

Step-by-step explanation:

Given

See attachment

Required

[tex]\tan A[/tex]

The tangent of an angle is:

[tex]\tan A = \frac{Opposite}{Adjacent}[/tex]

So, we have:

[tex]\tan A = \frac{BC}{CA}[/tex]

This gives:

[tex]\tan A = \frac{5}{8}[/tex]

Answer:

Step-by-step explanation:

The area is:

Answer:

[tex]60cm {}^{2} [/tex]

Answer:

A. 112π units³

General Formulas and Concepts:

Symbols

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Volume of a Cone Formula: [tex]\displaystyle V = \frac{1}{3} \pi r^2h[/tex]

Step-by-step explanation:

Step 1: Define

Radius r = 4

Height h = 21

Step 2: Find Volume

Answer:

A=14.54

Step-by-step explanation:

The picture is the working out

The area of the given right-angle triangle will be 15.01 cm².

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

There are many types of triangles such that right-angle triangles, equilateral triangles, and much more.

Given a right-angle triangle with a hypotenuse of 8.2 cm and a base is 4.3 cm

By Pythagoras theorem;

Perp² = Hyp² - Base²

Perp² =  8.2² - 4.3²

Perp² = 48.75

Perp = √48.75 = 6.98 cm

Now,

Area of right angle triangle ;

A = 1/2 × Base × Height

A = 1/2 × 4.3 × 6.98

A = 15.01 cm²

Hence "The area of the given right-angle triangle will be 15.01 cm²".

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Answer:

Step-by-step explanation:

Plane shapes in two dimensions (drawn on a flat piece of paper for example) have measurable properties apart from just their physical measurements of side lengths, internal angles and area. They can undergo transformations, whereby they can change position or size, or ‘aspect ratio’ (how tall and thin or short and wide they are).

This page explores congruence, symmetry, reflection, translation and rotation. These concepts are about how a shape’s position changes, relative to a reference, such as a line or a point.

We are faced with these ideas regularly in everyday life, in everything from product design, architecture and engineering, to occurrences in the natural world. Even matching the pattern on a roll of wallpaper involves these geometric ideas.

Congruence

Mathematics is full of complex terminology, but sometimes a complicated term can mean something really simple. This is true for congruence.

Two shapes that are congruent have the same size and the same shape. It’s as simple as that!

In the diagram below, shapes A, B, C and D are all congruent. Shapes E, F, G and H are not congruent.

Read more at: https://www.skillsyouneed.com/num/shape-transformations.html

Answer:

A. -5< x≤10

Step-by-step explanation:

7x>-35 and -5x ≥ -50

7x>-35

x>-5

-5x ≥ -50

x≤ 10

so, the result is:

-5< x ≤10

Answer:

10

Step-by-step explanation:

Answer:

10 :)

Step-by-step explanation:

12 divided by 1 1/5 is the same as:

It is always easier to convert the fraction into a decimal:

like we converted 1/5 into .20.  

[tex]\frac{12}{1.2}[/tex]=10

A question you can ask yourself is:

How many times can you multiply 1.2 to get 12?

1.2*10=12.

Hope it helps! :))

Answer:

Step-by-step explanation:

1/18 x 10.8 = 0.6 meters

The model of the boats' length is 0.6 meters.

Answer:

The value of x = 6.5 units

Step-by-step explanation:

Given triangle is a right angle triangle;

Length of base = 2.5 unit

Length of perpendicular = 6 unit

Find:

The value of x

Computation:

Using Pythagoras theorem;

Hypotenuse² = Base² + Perpendicular²

Hypotenuse² = 2.5² + 6²

Hypotenuse² = 6.25 + 36

Hypotenuse² = 42.25

Hypotenuse = √42.25

Hypotenuse = 6.5 unit

The value of x = 6.5 units

Answer: your answer should be 33.00/B

Step-by-step explanation:

Because u need to divide 15 by 2 = 7.5

Then Times that my 4.40

U get 33 dollar

Answer:

Radius, r = 2.80 cm

Step-by-step explanation:

Given the following data;

Volume of cylinder = 207 cm³

Height = 8.4 cm

Pie, π = 3.14

To find the radius of the water bottle;

Mathematically, the volume of a cylinder is given by the formula;

V = πr²h

Where;

V is the volume of a cylinder.

r represents the radius of the cylinder.

h represents the height of the cylinder.

Substituting into the formula, we have;

207 = 3.14 * r² * 8.4

207 = 26.376r²

r² = 207/26.376

r² = 7.85

r = √7.85

Radius, r = 2.80 cm

Answer:

y = 0.6x + 12.5

The courier service had to travel 18 miles

Step-by-step explanation:

Create an equation where y is the cost to deliver a package, and x is the number of miles traveled.

Since the service charges $0.60 per mile, the cost can be represented by $0.60x.

There is a flat rate of $12.50, so this will be added to 0.60x.

Then, set this equal to y. Using this, create an equation:

y = 0.6x + 12.5

Find how many miles the courier service had to travel by plugging in 23.30 as y, and solving for x:

y = 0.6x + 12.5

23.3 = 0.6x + 12.5

10.8 = 0.6x

18 = x

So, the courier service had to travel 18 miles.

Answer:

The answer is 24 cracks will be filled

Step-by-step explanation:

hope it helps :3

16 ounces in a pound.  convert pounds  to ounces

calculate the amount of cement we have. That would be 3 x 16 = 48 ounces of cement.

The amount of cracks to be filled : 48 /2  = 24 cracks

Answer:

y = |x + 2| - 5

Step-by-step explanation:

Answer:

Just as you can add or subtract the same exact quantity on both sides of an equation, you can also multiply both sides of an equation by the same quantity to write an equivalent equation. Let's look at a numeric equation, to start.

Step-by-step explanation:

Answer:

6

Step-by-step explanation

==============================================================

Explanation:

f(x) is equal to both x^2-2x+3 and also -6x at the same time. Set those two expressions equal to one another and solve for x.

x^2-2x+3 = -6x

x^2-2x+3+6x = 0

x^2+4x+3 = 0

(x+3)(x+1) = 0 .... see note below

x+3 = 0 or x+1 = 0

x = -3 or x = -1

Note: 3 and 1 multiply to 3, and also add to 4.

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

Once we get the x values, we plug them into either equation to find the y value.

So if x = -3, then

f(x) = x^2-2x+3

f(-3) = (-3)^2-2(-3)+3

f(-3) = 9 + 6 + 3

f(-3) = 18

or we could say

f(x) = -6x

f(-3) = -6(-3)

f(-3) = 18

Both versions produce the same output when x = -3.

The second version is easier to work with.

Since x = -3 leads to y = 18, we know that (-3, 18) is one of the solutions. That explains where your teacher got (-3, 18) from.

-----------

We'll use this idea for x = -1 now

f(x) = x^2-2x+3

f(-1) = (-1)^2-2(-1)+3

f(-1) = 1 + 2 + 3

f(-1) = 6

or we could say

f(x) = -6x

f(-1) = -6(-1)

f(-1) = 6

Like before, both versions of f(x) produce the same output when the input is x = -1.

The other solution is (-1, 6)

Answer

36.45?

Step-by-step explanation:

I think you just divide 85 by 35 and multiply 15 with that answer. 85/35 = 2.43

15x2.43 = 36.45

The arc length EF of the circle is 2π. Therefore, option C is the correct answer.

The arc length is defined as the interspace between the two points along a section of a curve. An arc of a circle is any part of the circumference.

The formula to find the arc length of a circle is θ/360° ×2πr.

Given that, ∠EDF=π/2= 90° and radius of a circle = 4 units.

Here, arc length = θ/360° ×2π×4

= 90°/360° ×2π×4

= 1/4 ×2π×4

= 2π

Therefore, option C is the correct answer.

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Answer:

i think the answer is C

Answer:

D

Step-by-step explanation:

i would say D because in the hall she would still be able to see the people where as if they are on a piece of paper in a box she cant see who will be drawn.

Answer:

B.

Step-by-step explanation:

A. Incorrect because it’s unreasonable.

C. Incorrect because why would a teacher pull 2 students from a completely different class to read?

D. Incorrect because does a teacher do that just to ask 2 students to do something simple?

B. The most reasonable answer that most teachers will do.

[tex]y = 7.5x + 40 \\ y = 7.5(1) + 40 \\ y = 7.5 + 40 \\ y = 47.5[/tex]

[tex]mandy \: earns \: 47.5 \: per \: hour[/tex]

Answer:

6

Step-by-step explanation:

i am smart

Answer:

{2+[(15-3)-61]}= -47  

Yes, the value would change because if it did you would use the method PEMDAS but if there were brackets you would do the process in the order of the brackets

Step-by-step explanation: