1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vaselesa [24]
3 years ago
8

Which expresion has a value o 15 when n = 7

Mathematics
1 answer:
astraxan [27]3 years ago
8 0

Answer:

19 - 28/n

n= 7

19 - 28/7

19-4

= 15

Step-by-step explanation:

You might be interested in
The national debt of a country is
olganol [36]

Answer:  3 \times 10^{13}

Explanation:

Highlight the first digit on the very left (2). The 7 right next to it means we'll round that 2 up to a 3. Every other digit becomes a zero.

The number 27,895,168,401,112 rounds to 30,000,000,000,000 which is the number 30 trillion.

It converts to the scientific notation 3 \times 10^{13} because we basically start with 3.0 and move the decimal point 13 spots to the right to arrive at 30 trillion as shown above.

8 0
2 years ago
As x → − ∞ , f ( x ) = − 3 . As x → ∞ , f ( x ) = − 3
Ludmilka [50]

Answer:

hi

Step-by-step explanation:

4 0
2 years ago
Find sin(a)&cos(B), tan(a)&cot(B), and sec(a)&csc(B).​
Reil [10]

Answer:

Part A) sin(\alpha)=\frac{4}{7},\ cos(\beta)=\frac{4}{7}

Part B) tan(\alpha)=\frac{4}{\sqrt{33}},\ tan(\beta)=\frac{4}{\sqrt{33}}

Part C) sec(\alpha)=\frac{7}{\sqrt{33}},\ csc(\beta)=\frac{7}{\sqrt{33}}

Step-by-step explanation:

Part A) Find sin(\alpha)\ and\ cos(\beta)

we know that

If two angles are complementary, then the value of sine of one angle is equal to the cosine of the other angle

In this problem

\alpha+\beta=90^o ---> by complementary angles

so

sin(\alpha)=cos(\beta)

Find the value of sin(\alpha) in the right triangle of the figure

sin(\alpha)=\frac{8}{14} ---> opposite side divided by the hypotenuse

simplify

sin(\alpha)=\frac{4}{7}

therefore

sin(\alpha)=\frac{4}{7}

cos(\beta)=\frac{4}{7}

Part B) Find tan(\alpha)\ and\ cot(\beta)

we know that

If two angles are complementary, then the value of tangent of one angle is equal to the cotangent of the other angle

In this problem

\alpha+\beta=90^o ---> by complementary angles

so

tan(\alpha)=cot(\beta)

<em>Find the value of the length side adjacent to the angle alpha</em>

Applying the Pythagorean Theorem

Let

x ----> length side adjacent to angle alpha

14^2=x^2+8^2\\x^2=14^2-8^2\\x^2=132

x=\sqrt{132}\ units

simplify

x=2\sqrt{33}\ units

Find the value of tan(\alpha) in the right triangle of the figure

tan(\alpha)=\frac{8}{2\sqrt{33}} ---> opposite side divided by the adjacent side angle alpha

simplify

tan(\alpha)=\frac{4}{\sqrt{33}}

therefore

tan(\alpha)=\frac{4}{\sqrt{33}}

tan(\beta)=\frac{4}{\sqrt{33}}

Part C) Find sec(\alpha)\ and\ csc(\beta)

we know that

If two angles are complementary, then the value of secant of one angle is equal to the cosecant of the other angle

In this problem

\alpha+\beta=90^o ---> by complementary angles

so

sec(\alpha)=csc(\beta)

Find the value of sec(\alpha) in the right triangle of the figure

sec(\alpha)=\frac{1}{cos(\alpha)}

Find the value of cos(\alpha)

cos(\alpha)=\frac{2\sqrt{33}}{14} ---> adjacent side divided by the hypotenuse

simplify

cos(\alpha)=\frac{\sqrt{33}}{7}

therefore

sec(\alpha)=\frac{7}{\sqrt{33}}

csc(\beta)=\frac{7}{\sqrt{33}}

6 0
3 years ago
Which table represents a linear function?
allsm [11]

Answer:

Graph One.

Step-by-step explanation:

See below. The graph is in a straight line, also known as linear. The other graphs are not. Also, if you look at the range (y) of the tables, you can see the increase is linear as it is increasing by .5 (1/2) everytime.

4 0
3 years ago
Read 2 more answers
A cube and a net of the cube are shown. The edge length of the cube is labeled 5 centimeters. The net consists of 4 squares conn
Natasha_Volkova [10]

We will determine the surface area as follows:

A=6(5cm\ast5cm)\Rightarrow A=150cm^2

So, the total surface area is 150 cm^2.

4 0
1 year ago
Other questions:
  • Hhhhhhhhhhhhhhhlllllllllleelpppppppppppppppp
    14·1 answer
  • Enter the degree of the polynomial below .
    7·2 answers
  • On eight book shelves there are 44 books per shelf. How many books are there altogether? If 1/4 of these books are novels, how m
    6·1 answer
  • Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a&gt;1
    11·2 answers
  • Which statements about the figure must be true? Select three options. A- Line segment A B is bisected by Line segment C D . B- L
    7·1 answer
  • Help please, I'll give brainliest to the first correct answer​
    5·1 answer
  • What is the equation of a line that is parallel to 2x+3y=3 and passes through the point (3, −4) ?
    14·1 answer
  • PLS Determine the measures of angles x, y, and z:
    9·1 answer
  • HELP ME PLS n j j j hjnbhjbhbj
    5·2 answers
  • You paint four walls. Each wall is a rectangle with a length of 20 feet and a height of 12 feet. One gallon of paint covers abou
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!