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
kupik [55]
2 years ago
5

Need help!! This is due before 1:00 please help ASAP!!! Will give brainliest!!

Mathematics
1 answer:
ozzi2 years ago
5 0

Answer:

7. 22 2/5   8. 10 8/10

Step-by-step explanation:

7. 7x3=21 + 7x1/5= 22 2/5

8.  2x5=10 + 2x4/10= 10 8/10

You might be interested in
The length of a rectangle is the sum of the width and 2. The area of the rectangle is 48 units. What is the length, in units, of
suter [353]

Length of the rectangle is 8 units

Step-by-step explanation:

  • Step 1: Find the length, let width be x.

Area of the rectangle = 48 units

Length = x + 2

⇒ Area = Length × Breadth

48 = x (x + 2)

48 = x² + 2x

x² + 2x - 48 = 0

x² + 8x - 6x + 48 = 0 (Product Sum rule to factorise)

x(x + 8) - 6(x + 8) = 0

(x - 6)(x + 8) = 0

⇒ x = 6, -8 (negative value is neglected)

∴ x = 6

x + 2 = 8

6 0
3 years ago
Suppose you are climbing a hill whose shape is given by the equation z = 1400 − 0.005x2 − 0.01y2, where x, y, and z are measured
Anarel [89]
Answer: You start to ascend

Explanation:

Since you are walking due south and the positive y-axis points north, the y-coordinate decreases.

Let 

y' = y-coordinate after walking due south
z' = z-coordinate (or the height) after walking due south

So, the point where you stand after walking due south has a coordinate of (100, y', z'). Moreover,

z' = 1,400 - 0.05(100)^2 - 0.01(y')^2
\\ \boxed{z' = 1350 - 0.01(y')^2}

Since the y-coordinate decreases after walking due south and z' = 1350 - 0.01(y')^2,

y'  \leq 120\\ \Rightarrow (y')^2 \leq 120^2 = 14,400\\ \Rightarrow -0.01(y')^2 \geq -0.01(14,400) = -144\\ \Rightarrow z' = 1,350 - 0.01(y')^2 \geq 1,350 - 0.01(14,400) = 1,206\\ \Rightarrow \boxed{z' \geq 1,206}

So, the height after walking due south exceeds 1,206 meters, which is the previous height before walking due south. Therefore, if you walk due south from point with coordinates (100, 120, 1206), you are ascending.
5 0
3 years ago
Find the value of x.
SCORPION-xisa [38]

Answer:

81 degrees

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the interest amount after borrowing $83,500 at a rate of 4.005% over 6 years? Round your answer to the nearest cent.
nadya68 [22]

Answer:

83,000

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
1.<br> What is the solution?<br> y<br> 3<br> -3-2-1<br> 2 3x<br> O (1,2)<br> O (1,-1)<br> O 1<br> 02
Rama09 [41]

9514 1404 393

Answer:

  (d)  Infinitely Many Solutions

Step-by-step explanation:

Each point of intersection between the lines is a solution. When the lines lie on top of each other, there are infinitely many points of intersection, hence ...

  Infinitely Many Solutions

4 0
3 years ago
Other questions:
  • 8.9 – 1.4x + (–6.5x) + 3.4
    7·2 answers
  • Does anyone know the answer to this problem ? Thanks
    5·1 answer
  • A car covers a distance of 60 km in 3 hours. However, for the first 40 km it travels 16 km/hr. At what speed must it travel for
    5·1 answer
  • Please answer I will give a good review:)​
    8·2 answers
  • Please help show my work
    8·1 answer
  • A circular garden has a radius of 3 meters. What is the area of the garden? Write your answer using π. Show your work.
    10·1 answer
  • Help answer helpppp ASAP this TIMED.
    13·1 answer
  • The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is r
    9·1 answer
  • What is the sum of angle 1 and angle 2
    6·1 answer
  • PLZ NEED THIS TODAY BY 5PM WILL GIVE BRAINLEST IF CORRECT 100 POINTS
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!