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
Oxana [17]
3 years ago
15

-7=7d-8 solve for the variable d

Mathematics
1 answer:
kvv77 [185]3 years ago
3 0

-7 = 7d - 8

Add 8 to both sides.

1 = 7d

Divide both sides by 7.

<h3>d = 1/7</h3>
You might be interested in
How does identifying the part in the whole help you write the percent proportion
julia-pushkina [17]
"part/whole is equal to percent proportion over 100%"
5 0
3 years ago
The first and fourth terms of a proportion are called the means.
expeople1 [14]

Answer:

Never is the correct answer.

Step-by-step explanation:

The 1st and 4th terms are the extremes, the 2nd and 3rd terms are the means.

6 0
1 year ago
Can someone help with number one
vlada-n [284]
Answer is 1 
The product of two irrational numbers will be irrational, but sometimes the product can be rational.
7 0
3 years ago
Read 2 more answers
How do i do this pls help me
Delvig [45]

Answer:

y =  \frac{1}{7} x + 7

Step-by-step explanation:

x-7y = -49

i) move x to the right-hand side and change its sign

-7y = -49-x

ii) change the signs on both sides of the equation

7y = 49+x

iii) divide both sides of the equation by 7

\frac{7y}{7}  = \frac{49}{7}  +  \frac{x}{7}

y = 7 +  \frac{1}{7}  x

iv) use the commutative property to reorder the terms

* commutative property: a+b = b+a

y =  \frac{1}{7} x + 7

3 0
2 years ago
(Photo attached) Trig question. Thanks in advance! :)
kolbaska11 [484]

Answer:

  a) cos(α+β) ≈ 0.8784

  b) sin(β -α) ≈ -0.2724

Step-by-step explanation:

There are a couple of ways to go at these. One is to use the sum and difference formulas for the cosine and sine functions. To do that, you need to find the sine for the angle whose cosine is given, and vice versa.

Another approach is to use the inverse trig functions to find the angles α and β, then combine those angles and find find the desired function of the combination.

For the first problem, we'll do it the first way:

  sin(α) = √(1 -cos²(α)) = √(1 -.926²) = √0.142524 ≈ 0.377524

  cos(β) = √(1 -sin²(β)) = √(1 -.111²) ≈ 0.993820

__

a) cos(α+β) = cos(α)cos(β) -sin(α)sin(β)

  = 0.926×0.993820 -0.377524×0.111

  cos(α+β) ≈ 0.8784

__

b) sin(β -α) = sin(arcsin(0.111) -arccos(0.926)) ≈ sin(6.3730° -22.1804°)

  = sin(-15.8074°)

  sin(β -α) ≈ -0.2724

4 0
3 years ago
Other questions:
  • If two lines intersect, they intersect at two different points. is the statement sometimes, always, or never true.
    5·1 answer
  • Help !!
    14·2 answers
  • 6,051.2 rounded to the nearest thousand
    14·1 answer
  • Subtract 39 from 42, and then subtract that difference from 26. Which expression means the same as these words?
    15·1 answer
  • There are ten amendments in the Bill of Rights. <br><br> Fact or opinion
    7·2 answers
  • How do I expand 4(-2y + 3), and whats the answer when expanded?
    10·2 answers
  • Reread all directions on the previous page that are typed in boldface.
    7·1 answer
  • Jaquay has a square garden with an area of 97 square feet. What is the length of each side of the garden?
    11·1 answer
  • 2. Suppose that you are looking for a student at your college who lives within five miles of you. You know that 55% of the 25,00
    9·1 answer
  • Giselle works as a carpenter and as a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!