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shusha [124]
3 years ago
11

PLZ HELP ME ASAP! 12 POINTS 

Mathematics
1 answer:
Korvikt [17]3 years ago
5 0
X = # 5 inch stones, y = # 10 inch stones

5x + 10y = 145
y = x + 1

5x + 10(x + 1) = 145
5x + 10x + 10 = 145
15x = 135
x = 135/15
x = 9 <=== 9 five inch stones

y = x + 1
y = 9 + 1
y = 10 <=== 10 ten inch stones


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alexgriva [62]
3 lightest sharks
= 3 3/8 + 3 3/8 + 3 3/8
=  9 9/8
=  10 1/8
7 0
3 years ago
5 • (- 10) x = 100 Esse número apagado foi <br><br> (A) 2<br> (B) 20<br> (C) -5<br> (D) -257*
Anettt [7]
The answers is A
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4 0
3 years ago
Which of the function below could possibly have created this graph ?
lina2011 [118]

ANSWER

D.

f(x) =  -  {x}^{4}  +  {x}^{3}  + 3 {x}^{2}

EXPLANATION

The given graph rises on the left and falls on the right.

This implies that the degree of the function is even.

Since the graph opens downward, the coefficient of the leading term must be negative.

The graph graph of the function also has 3 intercepts with one of them having an even multiplicity.

This means that the degree must be 4.

Therefore the last choice is correct.

4 0
3 years ago
Read 2 more answers
PLEASE HELP 20+ POINTS!! What is the cosine equation of the function shown?
noname [10]

Answer:   \bold{y=7\ \cos\bigg(x-\dfrac{\pi}{4}\bigg)-4}

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

y = A cos (Bx - C) + D

  • A (amplitude) = max - D
  • B = Period/2π  --->   Period is the distance from max to next max
  • C = B · Phase Shift  ---> Phase shift is distance from y-axis to max
  • D (vertical shift) = (max + min)/2

D = (max + min)/2     =     (3 - 11)/3      =  -4

A = max - D               =     3 - (-4)         = 7

Period = 9π/4 - π/4   =    8π/4            = 2π

B = Period/2π           =    2π/2π          = 1

Phase Shift = π/4 - 0 =     π/4

C = B · Phase Shift    =  1 · π/4            = π/4

Equation:

           y = 7 cos (1·x - π/4) + (-4)

               

8 0
3 years ago
PLEASE HELP WILL GIVE BRAINLY-IST
Reika [66]

Answer:

39 athletes

Step-by-step explanation:

There is a total of 45 people on the bus.  This INCLUDES the athletes (A), 2 coaches and 4 managers.

Therefore, we need to sum A, 2 and 4 and equal it to 45:

2 + 4 + A = 45  so we need to used equation d.

To calculate how many athletes are on the bus, find the value of A:

                                         2 + 4 + A = 45

Subtract 2 from both sides:  4 + A = 43

Subtract 4 from both sides:        A = 39

8 0
2 years ago
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