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erastova [34]
3 years ago
5

Estimate. 15.12 + 78.88 A. 90 B. 93 C. 95 D. 100

Mathematics
2 answers:
insens350 [35]3 years ago
7 0

Answer:

95

Step-by-step explanation:

timurjin [86]3 years ago
6 0

Answer:

C

Step-by-step explanation:

First 78+15 = 94

0.88+0.12 = 1

hence 95

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Please help I will give brainliest to the right answer!!!
timama [110]

Answer:

Step-by-step explanation:

Given function l:

h= -16t² + 26t

where h represents height and t represents time.

The time for dolphin atbthe height 5 feet is given by putting the value of h as 5 in the function,

5 = -16t² + 26t

16t² - 26t + 5 = 0

For this equation: a=16, b=-26, c=5

Use quadratic formula with a=16, b=-26, c=5.

x=(−b±√b2−4ac)/2a

x=−(−26)±√(−26)2−4(16)(5)/2(16)

x=13/16 + 1/16√89 or x=13/16+ −1/16√89

x=1.40 or 0.22

5 0
3 years ago
The value of the function g(x) is −2 when x=−5 and is 5.7 when x=6. What is the equation for the function g(x)?(1 point)
seraphim [82]

Given:

The value of the function g(x) is −2 when x=−5 and is 5.7 when x=6.

To find:

The equation of the function.

Solution:

The value of the function g(x) is −2 when x=−5. It means the graph of function passes through (-5,-2).

The value of the function g(x) is 5.7 when x=6. It means the graph of function passes through (6,5.7).

The equation of function g(x) that passes through (-5,-2) and (6,5.7) is

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-(-2)=\dfrac{5.7-(-2)}{6-(-5)}(x-(-5))

y+2=\dfrac{5.7+2}{6+5}(x+5)

y+2=\dfrac{7.7}{11}(x+5)

y+2=0.7(x+5)

y+2=0.7x+3.5

Subtract 2 from both sides.

y=0.7x+3.5-2

y=0.7x+1.5

Therefore, the equation of function g(x) is y=0.7x+1.5.

7 0
3 years ago
Read 2 more answers
What is 8 over 18 written as decimal
zvonat [6]
Its <span>0.444444444. hope this helps you</span>
8 0
3 years ago
Read 2 more answers
In order to slove the following system of equations by addition, which of the following could you do before adding the equations
Vladimir [108]

Answer:

  B. use multipliers -3 and 2

Step-by-step explanation:

If you're solving the system by "addition," multiplying the equations by the chosen numbers needs to result in opposite coefficients for one of the variables.

<h3>Effect of answer choices</h3>

A. The system becomes ...

  • 12x -6y = 21
  • 12x -12y = 60

No variable has opposite coefficients.

__

B. The system becomes ...

  • -12x +6y = -21
  • 6x -6y = 30

The y-variable has opposite coefficients. This is a good choice.

__

C. The system becomes ...

  • 12x -6y = 21
  • 6x -6y = 30

No variable has opposite coefficients.

__

D. The system becomes ...

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  • 3x -3y = 15

No variable has opposite coefficients.

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<em>Additional comment</em>

The simplest "no brainer" solution is to use the coefficients of one of the variables, negating one of them. Multiply each equation by the opposite equation's coefficient. Here, the y-coefficients are -2 and -3, and the multipliers of answer choice B are -3 and 2, consistent with this advice. (The sign of 2 was changed.)

5 0
3 years ago
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I need help with this thanks!!!!!
mixas84 [53]
Is this supposed to be a matching game of some sort? If so, I don’t think any of these here match what’s in the tables.

Sorry :(
8 0
3 years ago
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