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deff fn [24]
3 years ago
6

Can u help me in this plz plz

Mathematics
1 answer:
e-lub [12.9K]3 years ago
7 0

3. A square is a rhombus in which all the angles equal (to 90°).

4. 20 : 24 ratio that the ball picked wont be green

5. false

11. 15

12. half a chance (1/2)

13. 51

16. 9.79 × 10^-5

17. 4y = 29

18. b) 6.1

19. 80

20. x = -8/7

30. Area ≈ 7982.79

34. check the picture i attached for the histogram

THIS TOOK SO LONG

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If f(x) = 4x + 8 and g(x) = (x+4,<br> what is (fºg)(12)?
svetlana [45]

Answer:

72

Step-by-step explanation:

f(x) = 4x+8\\g(x) = x + 4\\\\1. f(g(x)) = 4(x+4) + 8\\2. f(g(x)) = 4x + 16 + 8\\3. f(g(x))=4x + 24\\\\4. f(g(12)) = 4(12) + 24\\5. f(g(12)) = 48 + 24 = 72\\

To do these, you have to place the entire function inside the parent function's variables.

You are inputting the value of the function g(x) into f(x)

4 0
3 years ago
Joseph typed a 1200- word essay in 25 minutes.at this rate,determine how many words he can type in 45 minutes.
Deffense [45]
First you divide 1200 by 25 (1200/25) it comes out to 48. 
That means the he types at a rate of 48wpm. So then all you have to do is multiply 48 and 45 and you get 2160 words.
4 0
3 years ago
Solve for x will give brainlest
Olenka [21]

3.4 - 2/3 > x

2) simplify 3.4 - 2/3 to 8.2/3

8.2/3 > x

3) Simplify 8.2/3 to 2.733333.

2.733333 > x

switch sides

4 0
2 years ago
Read 2 more answers
b) How many white-winged cross bills will there be at the end of June 2020? (Remember that t represent
Mandarinka [93]

Answer:

A dozen = 12

Step-by-step explanation:

I think I’m right

4 0
3 years ago
Just number 7 would be fine but if you could also number 8 would help a lot​
BlackZzzverrR [31]

Answer:

7. r = -5

8. x = -1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

r + 2 - 8r = -3 - 8r

<u>Step 2: Solve for </u><em><u>r</u></em>

  1. Combine like terms:                    -7r + 2 = -3 - 8r
  2. Add 8r to both sides:                   r + 2 = -3
  3. Subtract 2 on both sides:            r = -5

<u>Step 3: Check</u>

<em>Plug in r into the original equation to verify it's a solution.</em>

  1. Substitute in <em>r</em>:                    -5 + 2 - 8(-5) = -3 - 8(-5)
  2. Multiply:                              -5 + 2 + 40 = -3 + 40
  3. Add:                                    -3 + 40 = -3 + 40
  4. Add:                                    37 = 37

Here we see that 37 does indeed equal 37.

∴ r = -5 is a solution of the equation.

<u>Step 4: Define equation</u>

-4x = x + 5

<u>Step 5: Solve for </u><em><u>x</u></em>

  1. Subtract <em>x</em> on both sides:                    -5x = 5
  2. Divide -5 on both sides:                      x = -1

<u>Step 6: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                    -4(-1) = -1 + 5
  2. Multiply:                               4 = -1 + 5
  3. Add:                                     4 = 4

Here we see that 4 does indeed equal 4.

∴ x = -1 is a solution of the equation.

8 0
3 years ago
Read 2 more answers
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