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
Snowcat [4.5K]
3 years ago
12

Help me plz 5 question and i got 15 mins to get done

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0
1/6

7

5

2.5, 2.5, 2.75

10 2/3

You might be interested in
Solve the radical equation x – 7 = square root of -4x+28. Which statement is true about the solutions to the radical equation? T
Julli [10]

Answer:

x = 3 and 7

There are two true solutions.

Step-by-step explanation:

To solve x-7 = \sqrt{-4x+28}, use inverse operations by squaring both sides of the equal sign.

(x-7)^2 = (\sqrt{-4x+28})^2\\x^2-14x+49 = -4x+28\\x^2-14x+4x+49-28 = 0\\x^2-10x+21=0

The quadratic expression can be factored into binomials and set equal to 0 by the zero product property to find x.

(x - 3) ( x - 7) = 0

x-3 = 0 so x=3

x-7 = 0 so x=7

Now check each solution into the original equation to be sure it solve the solution and is not extraneous.

7-7 = \sqrt{-4(7)+28}\\ 0=0

and

3-7 = \sqrt{-4(3)+28}\\[tex]-4 = \sqrt{16}\\-4 =-4[/tex]

3 0
3 years ago
Help me please. <br>20+(-16)4
Sphinxa [80]
P.E.M.D.A.S
First , you multiply.

200+(-16)4
200+(-64)

Since they have different signs, you subtract and keep the sign of the greater absolute value.

200+(-64)=136
8 0
3 years ago
Hayden is a manager at a landscaping company. He has two workers to landscape an entire park, Cody and Kaitlyn. Cody can complet
belka [17]
Answer: 3.4 h

Explanation:

1) The basis to solve this kind of problems is that the speed of working together is equal to the sum of the individual speeds.

This is: speed of doing the project together = speed of Cody working alone + speed of Kaitlyin working alone.

2) Speed of Cody

Cody can complete the project in 8 hours => 1 project / 8 h

3) Speed of Kaitlyn

Kaitlyn can complete the project in 6 houres => 1 project / 6 h

4) Speed working together:

1 / 8 + 1 / 6  = [6 + 8] / (6*8  = 14 / 48 = 7 / 24

7/24 is the velocity or working together meaning that they can complete 7 projects in 24 hours.

Then, the time to complete the entire project is the inverse: 24 hours / 7 projects ≈ 3.4 hours / project.Meaning 3.4 hours to complete the project.
7 0
3 years ago
Read 2 more answers
The first three terms of a geometric sequence are shown below.
san4es73 [151]
This is a geometric sequence of the form:

a(n)=(x+3)(-2x)^(n-1)  because each term is -2x times the previous term...so

a(8)=(x+3)(-128x^7)

a(8)=-128x^8-384x^7
4 0
3 years ago
Read 2 more answers
Tri scored a total of 31 points in the basketball game, and he scored p points in the second half of the game. Write an expressi
kirill115 [55]

Answer:

If he scored x points in the first half, then x + p = 31

7 0
2 years ago
Read 2 more answers
Other questions:
  • Select the two equations that can be used to solve the following inequality
    12·1 answer
  • Determine the total number of roots of each polynomial function. f (x) = 3x^4 + 1)^2
    15·2 answers
  • What is the slope of 3y=6x-1 ?
    7·1 answer
  • What is the output of the function f(p) = 3p – 2 when the input is 2?
    10·1 answer
  • 3. Find the larger of the two consecutive integers
    8·1 answer
  • a recipe requires 1\3 cup of milk for each 1\4 cup of water. how many cups of water are needed for each cup of milk
    5·2 answers
  • Cat face (-13)+(+15)-(-7)+(+10)-(-23)=?
    7·1 answer
  • The mean temperature for the first 4 days in January was 8°C.
    12·1 answer
  • Please help :)
    8·1 answer
  • Use the laws of Sines and law of cosines to find missing Dimensions. Part 2​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!