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
netineya [11]
3 years ago
5

(c) If 2a + 7b = 11 and ab = 2, find the value of 4a2 + 49b2.​

Mathematics
2 answers:
Mademuasel [1]3 years ago
5 0

I hope this helps you

take both of sides paranthesis square

(2a+7b)^2=(11)^2

4a^2+2.4a.7b+49b^2=121

4a^2+49b^2+56.2=121

4a^2+49b^2=9

kirill115 [55]3 years ago
3 0

Answer:

65

Step-by-step explanation:

Please see the attached picture for full solution.

You might be interested in
Escribe un número decimal que se encuentre entre cada Par de números 0.1 y 0.01?
Likurg_2 [28]
La respuesta es 0.05 :)
6 0
3 years ago
Which statement is true about the value of StartAbsoluteValue negative 14 EndAbsoluteValue? StartAbsoluteValue negative 14 EndAb
Ainat [17]

Answer:

(C)It is the distance between –14 and 0 on the number line.

Step-by-step explanation:

The absolute value of a number returns a positive value no matter te number inside the absolute sign.

Therefore, the absolute value of -14 is 14.

That is: |-14|=14

It is the distance between -14 and 0 on the number line.

The correct option is C.

7 0
3 years ago
Ariana bought 7 muffins she paid 13.02 how much did each muffin cost
nalin [4]

Answer:

About $1.86

Step-by-step explanation:

It could be rounded to $1.90.

5 0
3 years ago
Read 2 more answers
Help with 19, 19a, and 19b please
Nina [5.8K]
The answer to 19b is 35

i’m sorry i don’t know part A
3 0
3 years ago
Read 2 more answers
A salesman sells a car for $37,000 and earns 8.5% commission. How much commission does he earn?
nevsk [136]

Answer:

4,352 dollars

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • How can you use different ways to write a number as ten and ones
    12·1 answer
  • What is the value of x?
    15·1 answer
  • Solve and graph the absolute value inequality: |4x + 1| ≤ 5. a. number line with closed dots on −1.5 and 1 with shading going in
    10·1 answer
  • What are the zeros of the quadratic function?<br><br> f(x)=4x2−100
    6·1 answer
  • a cookie recipe uses 6 cups of brown sugar for every 9 cups of white sugar. How many cups of brown sugar is needed if I use 24 c
    14·2 answers
  • I need help on this can someone help me
    5·1 answer
  • Mark bought 420 watermelons. he ate 69 of them. how many are left​
    12·2 answers
  • Please help me anyone and fast too​
    10·1 answer
  • Rewrite the sum of 96 + 80 using the distrubutive property
    10·2 answers
  • Estimate to compare. Select &lt; or &gt;. Round each number to the nearest whole number to estimate each sum.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!