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
Jobisdone [24]
3 years ago
10

Plz answer for 20 pts

Mathematics
2 answers:
Marina86 [1]3 years ago
6 0

Answer:

6) \: \: \sqrt{3} + 4 \sqrt{3} \: = \: 5\sqrt{3}

7) \: \: 3\sqrt{5}+ 6\sqrt{45} = 3\sqrt{5}+6\sqrt{9} \! \cdot \! \sqrt{5}

= 3\sqrt{5} + 6\! \cdot \! 3 \! \cdot \!  \sqrt{5}=3 \sqrt{5} + 18 \sqrt{5} = 21\sqrt{5}

KATRIN_1 [288]3 years ago
5 0

Answer to Problem 1: 5√3

Answer to Problem 2: 21√5

You might be interested in
The table shows an estimate of costs at Central Texas College for 1 year. What is a reasonable savings goal to meet the cost of
asambeis [7]
The average cost of a semester is 1200 in state tuition including books and meal plans for a yearly cost and the two year fee it would be around 4000
5 0
3 years ago
After spending 5/9 of his money, David has<br>$36 left. How much money did he have at first?​
liq [111]
81 dollars at first
8 0
3 years ago
Please help! what is the polar equation r = -5 theta in parametric form?<br><br> thank you!
Rudiy27

Use these equations when converting polar equations to parametric equations:

x=r\cos\theta

y=r\sin\theta

We know that r=5\theta, so substitute that into both equations for x and y.

x=5\theta\cos\theta

y=5\theta\sin\theta

Now, replace \theta with any variable that you want to represent the parametric equations in. I'll use the standard variable, t

x=5t\cos t

y=5t\sin t

Thus, r=5\theta represented in parametric form is:

(x,y)=(5t\cos t, 5t \sin t)

Let me know if you need any clarifications, thanks!

~ Padoru

4 0
3 years ago
Your friend has $90 when he goes to the fair. He spends $5 to enter the fair and $15 on food. Rides at the fair cost $1.50 per r
Maksim231197 [3]

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that ,

Total money he takes while going to the fair = $90

Money he spends to enter the fair = $5

Money he spends on food =$15

Total he spent now is given by

\$5+\$15=\$20

Now, he spend on rides at the fair i.e. 1.50 per ride .

Let the number of rides be x

So, cost incurred on rides = 1.5x

So, the spending money can be expressed as

20+1.50x

Now, remaining money left to him after spending on x rides too is

90-(1.50x+20)\\\\=90-1.50x-20\\\\=70-1.5x

Let f(x) denotes the function used to determine the money he has left over after rides .

So it becomes

f(x)=70-1.50x\\\\f(x)=-1.50x+70


3 0
3 years ago
Read 2 more answers
Based only on the information given in the diagram, which congruence
Brilliant_brown [7]

Answer:

I think B and C

Step-by-step explanation:

Because they are the only ones that have more than two so you know it would be them

5 0
3 years ago
Read 2 more answers
Other questions:
  • Use the formula h=16t^2 to solve the problem . A diver dives from a cliff that has a height of 86.4 feet. Determine the time of
    6·1 answer
  • It took Amir 2 hours to hike 5 miles. On the first part of the hike, Amir averaged 3 miles per hour. For the second part of the
    15·1 answer
  • Marlin's marble jar had 36 red marbles and 64 blue marbles. What was the ratio of red marbles to blue marbles in the jar?
    12·2 answers
  • Solve for x:
    10·1 answer
  • Suppose you start with a full tank of gas (18 gallons) in your truck. After driving 6 hours, you now have 8 gallons left. If x i
    8·1 answer
  • What is the slope of 0, 3 and 0, -5
    8·2 answers
  • 3x - 4.5 = -19.5<br> solve for x
    9·2 answers
  • Divide R125 in the ratio of 2:3​
    8·1 answer
  • Help!
    11·1 answer
  • HEEEEEELLLLLLLLPPPPPPPP! Plz
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!