I need the answer. Please help

Answer: The Answer Is 21 Divided By 7 = 3

Answer:

Multiple problems can be solved.

These are the fact families.

7x3=21

21÷7=3

21÷3=7

Step-by-step explanation:

Answer:

m

Step-by-step explanation:

b

Answer:

tan

Step-by-step explanation:

take 19 degree as reference angle

using tan rule

tan 19=opposite/adjacent

0.34=14/x

x=14/0.34

x=41.17

x=41.2

Answer:

Area = 77ft²

Perimeter = 44 9/20 feets

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Base = 19 1/4 feets = 77/4 feets

Height = 8 feets

Area = 1/2 * 77/4 * 8

Area = (77 * 8) / 8

Area = 77 feet²

Perimeter of a triangle :

Sum of the sides

Perimeter = a + b + c

Perimeter = 19 1/4 + 10 + 15 1/5

Perimeter = 44 + (1/4 + 1/5)

Perimeter = 44 9/20

Answer:

Subtrac 3

Step-by-step explanation:

Given

Add 3

Required

The inverse operation

In algebra, the inverse of add is subtract;

Hence, the inverse of add 3 is subtract 3

9514 1404 393

Answer:

  3x = ln(y+4)

Step-by-step explanation:

Taking the natural log of both sides, you have ...

  3x = ln(y +4)

__

The applicable rule of logarithms is ...

  ln(e^a) = a

The "work" is applying this rule. Here, a=3x. The log of a sum cannot be simplified.

Answer:

[tex]\dfrac{6}{10}ab[/tex]

Step-by-step explanation:

Given that,

The first number is [tex]\dfrac{-3a}{7}[/tex]

The second number is [tex]\dfrac{-21b}{15}[/tex]

We need to find the product of the first number and second number. Product means we need to multiply i.e.

[tex]\dfrac{-3a}{7}\times \dfrac{-21b}{15}=0.6ab\\\\=\dfrac{6}{10}ab[/tex]

Hence, the product of the given numbers is equal to [tex]\dfrac{6}{10}ab[/tex].

Answer:

(1,5) (2,6) (3,7) (4,8)

Answer:

66 2/3 cubic inches

Step-by-step explanation:

V=1/3Bh    where 'B' is the area of the base and 'h' is height

V = 1/3(20)(10)

V = 200/3 or 66 2/3 cubic inches

Answer:

they would sell 496 bottles

Step-by-step explanation:

if %1 of 800 is 8, then pultiply that by 62, since 62% said they liked tide

Answer:

x>-4    

:)

Step-by-step explanation:

Answer:

C. x > -4

Step-by-step explanation:

2x - 8 < 5x + 4

=> -3x < 12

=> x > -4 (have to change the inequality sign because it's divided by a negative number, -3)

Answer:

b

Step-by-step explanation:

Step-by-step explanation:

school c so B would be correct

Answer:

Is this the full question?

The sum of vector is (-2.4148, -4.0499), magnitude is 4.7 and  [tex]\theta[/tex] = 239 degree.

A quantity or phenomena with independent qualities for both magnitude and direction is called a vector. The term can also refer to a quantity's mathematical or geometrical representation. Velocity, momentum, force, electromagnetic fields, and weight are a few examples of vectors in nature.

Given:

Vector u = 3( cos 255, sin 255)

v = 2 (sin 215, cos 215)

So, u+ v

= (3 cos 255 + 2 cos 215, 3 sin 255 + 2 sin 215)

= (-2.4148, -4.0499)

and, Magnitude

| u +v | = √(-2.4148)² + (-4.0499)²

           = 4.7

Then, tan [tex]\theta[/tex] = 4.0499/ 2.4148

So,  [tex]\theta[/tex] = 239 degree

Learn more about Vector here:

https://brainly.com/question/29740341

#SPJ1

9514 1404 393

Answer:

  3.  C(−1, −5), D(2, −5)

Step-by-step explanation:

The given points are 2 -(-1) = 3 units apart horizontally, so the remaining points will need to be 18/3 = 6 units below, vertically. Translating the given points down 6 gives ...

  D = A -(0, 6) = (2, 1) -(0, 6) = (2, -5)

  C = B -(0, 6) = (-1, 1) -(0, 6) = (-1, -5)

The two points required to make a rectangle with an area of 18 square units are ...

  C(-1, -5), D(2, -5)

_____

The area of a rectangle is the product of length and width. If the area is 18 square units, and the width is 3 units, then the length must be 6 units. 3×6=18.

Answer:

3x-1

Step-by-step explanation:

3x^2+2x-5=3x-1 x1-25

Answer:

Step-by-step explanation:

Direction: Opens Up

Vertex:  

(

3

,

−

4

)

Focus:  

(

3

,

−

15

4

)

Axis of Symmetry:  

x

=

3

Directrix:  

y

=

−

17

4

Select a few  

x

values, and plug them into the equation to find the corresponding  

y

values. The  

x

values should be selected around the vertex.

Tap for more steps...

x

y

1

0

2

−

3

3

−

4

4

−

3

5

0

Graph the parabola using its properties and the selected points.

Direction: Opens Up

Vertex:  

(

3

,

−

4

)

Focus:  

(

3

,

−

15

4

)

Axis of Symmetry:  

x

=

3

Directrix:  

y

=

−

17

4

x

y

1

0

2

−

3

3

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5

0

Answer:

we have

-3+4i

let magnitude be |z|

|z|=[tex] \sqrt{( - 3) {}^{2} + 4 {}^{2} } [/tex]

|z|=5 unit

Answer:

The magnitude of -3 +4i is 5

Step-by-step explanation:

Answer:

The probability that his bill will be less than $50 a month or more than $150 for a single month is 0.3728 = 37.28%.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

A salesman who uses his car extensively finds that his gasoline bills average $125.32 per month with a standard deviation of $49.51.

This means that [tex]\mu = 125.32, \sigma = 49.51[/tex]

Less than 50:

p-value of Z when X = 50. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{50 - 125.32}{49.51}[/tex]

[tex]Z = -1.52[/tex]

[tex]Z = -1.52[/tex] has a p-value of 0.0643

More than 150

1 subtracted by the p-value of Z when X = 150. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{150 - 125.32}{49.51}[/tex]

[tex]Z = 0.5[/tex]

[tex]Z = 0.5[/tex] has a p-value of 0.6915

1 - 0.6915 = 0.3085

The probability that his bill will be less than $50 a month or more than $150 for a single month is:

0.0643 + 0.3085 = 0.3728

The probability that his bill will be less than $50 a month or more than $150 for a single month is 0.3728 = 37.28%.

Answer:

b

Step-by-step explanation:

< less than

> greater than

= equal to

1,372 is less than 3,496 true

1,372 is greater than 3,496 false

2,583 is less than 4,194 true

3,496 is greater than 1,372 true

Answer:

C and F

Step-by-step explanation:

Answer:

A, F

Step-by-step explanation:

ratio of sides in a 30-60-90 triangle is  1 : [tex]\sqrt{3}[/tex] : 2

Answer:

x=28

Step-by-step explanation:

1/2x - 3 = 11

Add 3 on both sides

1/2x = 14

Multiply 2 on both sides x=28

Answer:

For example, if f (x) and g (x) are inverses of each other, then we can ... Consider another case where a function f is given by f = {(7, 3), (8, –5), (–2, 11), (–6, 4)}. This function is one-to-one because none of its y - values appear more than once.

Step-by-step explanation:

Answer:

21 times each person can be chossen for each postion once

Step-by-step explanation:

Answer:

[tex]y = 8,50x[/tex]

Step-by-step explanation:

Given

Let

[tex]y\to[/tex]earnings

[tex]x \to[/tex] hours

Solving (a): The proportion

x and y can be expressed as:

[tex]y\ \alpha\ x[/tex] --- direct variation

Write as an equation

[tex]y = kx[/tex]

Where

[tex]k = 8.50[/tex] --- the hourly rate

So, we have:

[tex]y = 8,50x[/tex]

Answer:

See below.

Step-by-step explanation:

The train leaves station A at 13:44 and arrives at station B at 15:12.

Which means the train took 1 hour and 28 minutes to arrive at station B.

The train travels at 300 km/h. It took at least one hour, so the answer > 300 km.

Now, the remaining 28 minutes. We divide them by 60, as there’s 60 minutes in one hour and multiply by 300, as that’s how fast the train travels per hour.

28/60*300 = 140.

300 + 140 = 440.

The distance between the stations is 440 km.

Answer:

Half of 12 is 6(new radius)

6^2 = 36

36 x 3.14 = 113.04

113.04 x 8 = 904.32

904.32 divided by 3 ( x 1/3) = 301.44  m is your answer.

Answer:

Step-by-step explanation:

ask cymath it will help you with any mathmatical problem

Answer:

120

Step-by-step explanation:

volume of triangular prism = area of base times length

the base is a triangle and the area of a triangle can be calculated by using this formula

[tex]a=\frac{bh}{2}[/tex]

where b = base length and h = height

Dimensions of base

base length = 8cm and height = 3cm

Thus,

[tex]A=\frac{3*8}{2} \\3*8=24\\\frac{24}{2} =12\\[/tex]

The length of the triangular prism is 10cm

Thus volume = 10 * 12 = 120

Answer:

plz if you knew if you new it plz tell me