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
Afina-wow [57]
2 years ago
8

Aere are two squares. A and B.

Mathematics
1 answer:
anyanavicka [17]2 years ago
8 0

Answer:

116 cm²

Step-by-step explanation:

a = side length of A

b = side length of B

b = a + 4

b² = a² + 70

(a+4)² = a² + 70

a² + 8a + 16 = a² + 70

8a + 16 = 70

8a = 54

a = 54/8 = 27/4 = 6.75

b² = a² + 70 = 6.75² + 70 = 45.5625 + 70 =

= 115.5625 ≈ 116 cm²

our does your teacher mean 3 significant figures after the decimal point ? then it would be

115.563 cm²

You might be interested in
3. Matt is dinning at a restaurant that does not charge a sales tax. He would like to leave a 15% tip. Select all of the followi
abruzzese [7]
Hi there I’m here for points I’m sorry I couldn’t help:/
8 0
2 years ago
Which of the following are true for the conditional statement p → q ? Select all that apply.
Lostsunrise [7]
If p then q. P, therefore q.
5 0
2 years ago
Derive the equation of the parabola with a focus at (0, −4) and a directrix of y = 4.
CaHeK987 [17]

<u>Answer:</u>

y=-\frac{1}{16} x^2

<u>Step-by-step explanation:</u>

Equation of parabola with focus at (0,-4) and directrix is y=4.

We know that parabola is the locus of all the points such that the distance from fixed point on the parabola to fixed line directrix is the same.

The parabola is opening downwards.

Let any point on parabola is (x,y).

Distance from focus(0,-4) to (x,y) = \sqrt{(x-0)^2+(y-(-4))^2}=|y-4|

\sqrt{(x-0)^2+(y-+4)^2}=|y-4|

(x-0)^2+(y+4)^2=(y-4)^2

(x)^2+(y+4)^2=(y-4)^2

x^2+(y^2+4y+4y+16)=y^2-4y-4y+16

x^2+y^2+8y+16=y^2-8y+16

x^2+16y^2=0

16y=-x^2

y=-\frac{1}{16} x^2

6 0
2 years ago
Find the volume of the cylinder
N76 [4]

Answer: wouldn't be 1608.5? let me know if im wrong.

V = πr^2 h= π · 8^2 · 8 ≈ 1608.49544

7 0
3 years ago
Read 2 more answers
What is the arithmetic mean of the following<br> numbers?<br> 10,6, 4, 4, 6, 4, 1
slamgirl [31]

Answer:

5

Step-by-step explanation:

When you add up the values you get 35, then you divide it by the number of numbers in the set, which is 7, so when you divide 35/7, you end up with 5.

5 0
2 years ago
Other questions:
  • Owen used these steps to solve the equation 4x+7=1+2(2x+3) . Which choice describes the meaning of his result, 7=7 ?
    7·2 answers
  • While exercising victor walked 3/4 of a mile in 1/5 of an hour. at this rate how far will he have traveled after an hour
    14·1 answer
  • Select the correct answer.
    13·1 answer
  • What’s the value of f(5)?
    5·2 answers
  • Find the distance between the points (-3,2) and (0,3).
    8·2 answers
  • The perimeter of a rectangle is 15x + 17y
    9·1 answer
  • At Jack’s birthday party, 23 of the kids had balloons. 14 of the balloons were red. What fraction of the kids at the party had r
    11·1 answer
  • OK PLZ GIVE ME A GOOD ANSWER
    11·1 answer
  • Divide 120ml into the ratio 3:7
    14·1 answer
  • An arithmetic sequence is defined by its 1st term a1 = 7 and the sum of the first 10 terms s10 = 25. Find the difference d of th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!