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
Maurinko [17]
3 years ago
9

If 2d = 5c, then all of the following are true except _____.

Mathematics
2 answers:
Bad White [126]3 years ago
4 0
D is the only one not true
natali 33 [55]3 years ago
3 0

Answer:

\frac{2}{d} = \frac{5}{c}

Option d is correct

Step-by-step explanation:

Given that:

2d = 5c

Option d.

\frac{2}{5} = \frac{c}{d}

By cross multiply we have;

2d = 5c  which is true.

Option b.

\frac{5}{2} = \frac{d}{c}

By cross multiply we have;

5c =2d  which is true.

Option c.

\frac{2}{c} = \frac{5}{d}

By cross multiply we have;

5d =5c  which is true.

Option d.

\frac{2}{d} = \frac{5}{c}

By cross multiply we have;

2c = 5d

which is not true.

Therefore, all of the following are true except \frac{2}{d} = \frac{5}{c}

You might be interested in
How many ways can nine trophies be arranged on a shelf​
irga5000 [103]

Answer:

it depends on the shelf

Step-by-step explanation:

6 0
2 years ago
Find the value of x to the nearest tenth.
nlexa [21]

Answer:

x = 14.7

Step-by-step explanation:

Using the sine rule

\frac{a}{sin(A)}  = \frac{b}{sin(B)}  = \frac{c}{sin(C)}

Substitute the given values.

\frac{7}{sin(20)}  = \frac{x}{sin(46)}

Rearrange the equation to get x on it's own.

\frac{7sin(46)}{sin(20)}  = x

x = 14.72246211

x = 14.7 (1dp)

8 0
3 years ago
The area of a triangle is Half the area of a rectangle with the same base and height *
Vaselesa [24]

Answer:

Always.

Step-by-step explanation:

That is the reason why when you are trying to calculate the area of a triangle you do the base x height divided by two or in half. If you printed out the triangle twice then cut it out and put the two together it would be a rectangle.

5 0
2 years ago
Read 2 more answers
What is the equation of the line that passes through the point (−7,2) and has a slope of −1
MAXImum [283]
The equation in slope intercept form is y=-x-5
7 0
3 years ago
Write an equation of the line containing the given point and perpendicular to the given line. express your answer in the form y=
katovenus [111]
The given line
4x + y = 5
The slope of the given line is -4

Find the slope of perpendicular line
m₁ × m₂ = -1
-4 × m₂ = -1
m₂ = -1/-4
m₂ = 1/4

Find the equation of perpendicular line
y - y₁ = m(x - x₁)
y - 9 = 1/4(x - 8)
y - 9 = (1/4) x - 2
y = (1/4)x - 2 + 9
y = (1/4)x + 7
4 0
2 years ago
Other questions:
  • The two lines graphed below are not parallel. How many solutions are there to the system of equations? 
    8·2 answers
  • 11. Write 850 as the product of its prime factors. A. 17 × 50 B. 5 × 10 × 17 C. 10 × 85 D. 2 × 5 × 5 × 17
    12·1 answer
  • from a set of seven math books, nine science books, and five literature books, in how many ways can a student select two from ea
    13·1 answer
  • How many times do the graphs of<br>the equations y = 2x + 4 and<br>y = -x + 4 intersect?​
    11·1 answer
  • If John is 6 and his brother is 2 times his age how old is his brother
    7·1 answer
  • The next month, the family tries the bowling palace, which is on the other side of the town. they set aside $30 for gas and food
    8·2 answers
  • Which of the following proportions is false? Select one:
    11·1 answer
  • Hey guys! which one is it (photo below)
    12·1 answer
  • A scale drawing of a kitchen is shown below. The scale is 1:20.
    9·1 answer
  • Determine the sum of the first 1000 Natural numbers
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!