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
Tatiana [17]
3 years ago
15

A = √7 + √c and b = √63 + √d where c and d are positive integers.

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0

Answer:

\displaystyle a:b=\frac{1}{3}

Step-by-step explanation:

<u>Ratios </u>

We are given the following relations:

a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]

b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]

\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]

From [3]:

9c=d

Replacing into [2]:

b=\sqrt{63}+\sqrt{9c}

We can express 63=9*7:

b=\sqrt{9*7}+\sqrt{9c}

Taking the square root of 9:

b=3\sqrt{7}+3\sqrt{c}

Factoring:

b=3(\sqrt{7}+\sqrt{c})

Find the ration a:b:

\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}

Simplifying:

\boxed{a:b=\frac{1}{3}}

You might be interested in
Draw clearly the graph of the linear equation. y=1/2x, where x= (-4 -2, 0, 2, 4)​
aniked [119]

Answer:

(in attachment)

Step-by-step explanation:

you can find the points by inputting the x-values into the equation to solve for the y-values, then connecting the plotted points to create the line.

When x=-4

y=1/2(-4)

y=-2

(-4,-2)

Repeat for all values.

6 0
3 years ago
Find the power of 1.4 product is 3.<br><br><br>1.64<br><br>2.744<br><br>4.2<br><br>1.96
Natasha2012 [34]

Answer:

the answer would be 4.2

5 0
3 years ago
Read 2 more answers
Suppose a certain forest fire doubles in size every 12 hours. If the initial size of the fire was 1 acre, how many acres will th
sineoko [7]
The forest fire will be 4 acres
8 0
3 years ago
Which of the following phases are expressions
valentinak56 [21]
Attach a picture of the question please.
4 0
3 years ago
Find the first three iterates of the function f(z) = 2z + (3 - 2i) with an initial value of zo = 5i.
Ratling [72]

Answer:

C

Step-by-step explanation:

Saw it on a quizlet

3 0
3 years ago
Other questions:
  • Which of the following triangle cases may have one, two, or zero solutions?
    15·1 answer
  • There are 550 students at Martin Middle School. One bundred and eighty- seven students walk to school. what percent of the stude
    8·1 answer
  • Simplify<br><br>2 x m x n x 8​
    5·1 answer
  • Please show process I WILL GIVE BRAINLY
    11·1 answer
  • NEED HELP ASAP
    7·1 answer
  • Keisha bought 11 pounds of rice for $5.
    8·1 answer
  • HELP NOW!!?!! who ever gets all three of them right gets brainlist and (15 points) *questions in photo*
    5·1 answer
  • Help ASAP Brainliest!
    5·2 answers
  • What is the opposite of 8?
    9·2 answers
  • Which table represents the equation y = -2x + 17?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!