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Inessa05 [86]
3 years ago
10

Given f(x)=3x2−5x−2 . What is the value of f(−23) ?

Mathematics
1 answer:
Sonja [21]3 years ago
3 0

f(x) =  {3x}^{2}  - 5x - 2 \\ f( - 23) = ... \\ f( - 23) \: means \: x =  - 23 \\ so \: f( - 23) =  {3( - 23)}^{2}  - 5( - 23) - 2 \\  = 3(529)  + 115 - 2 \\  = 1700
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you are working as an assistant to a chef the chef has 8 cups of berries and will us 2/3 cup of berries for each dessert he make
Anna11 [10]

To complete this question, all we have to do is divide the 8 cups of berries the chef has by the 2/3 cup of berries the chef will use to make each dessert. The equation we will use is as follows:

8 / \frac{2}{3} = 12.

If the statement is true, the chef will be able to make 12 desserts.


Hope this helps. :)


6 0
4 years ago
What is the solution to this equation?<br><br> 7- 3√2-x=12
dedylja [7]

Answer:

x=-5-3\sqrt{2}

It cannot be more simplified.

4 0
3 years ago
Read 2 more answers
Please help 40 POINTS
Nuetrik [128]

Answer:

To reduce a fraction: divide the numerator and denominator by their greatest common factor, GCF.

Fraction: 9/10 already reduced to the lowest terms.

The numerator and denominator have no common prime factors.

Their prime factorization:

9 = 32;

10 = 2 × 5;

gcf (32; 2 × 5) = 1;

Fraction: - 3/4 already reduced to the lowest terms.

The numerator and denominator have no common prime factors.

Their prime factorization:

3 is a prime number;

4 = 22;

gcf (3; 22) = 1;

LCM (10; 4) = 22 × 5 = 20

3/20 is the answer.........

6 0
3 years ago
Read 2 more answers
Which is a characteristic of the line that passes through the points (6, 10) and (12, 7)? The slope is mc015-1.jpg. The slope is
lbvjy [14]
Answer:
slope of the line is -0.5
y-intercept is 13

Explanation:
The general formula of the linear equation is:
y = mx + c 
where m is the slope and c is the y-intercept

1- getting the slope:
We are given the two points:
(6,10) representing (x1 , y1)
(12,7) representing (x2 , y2)
The slope of the line will be calculated as follows:
m = (y2-y1) / (x2-x1) = (7-10) / (12-6) = -3/6 = -0.5
The equation of the line now becomes:
y = -0.5x + c

2- getting the value of the y-intercept:
To get the value of the y-intercept (c), we will use any of the given points, substitute in the equation of the line and solve for c. I will use the point (6,10) as follows:
y = -0.5x + c
10 = -0.5(6) + c
10 = -3 + c
c = 13

Based on the above, the equation of the line would be:
y = -0.5x + 13

Hope this helps :)
8 0
3 years ago
Read 2 more answers
In the diagram, ABC is an equilateral triangle, BCFG is a square and CDEF is a rectangle. The perimeter of the whole diagram is
nikklg [1K]

Answer:

22 cm

Step-by-step explanation:

the perimeter = AB+BG+GF+FE+ED+DC+CA

= 65 cm

7+7+7+FE+7+DC+7=65 => FE = CD

35+ 2FE = 65

2FE = 65-35

= 30

FE = 30/2 = 15

so, GE = GF + FE

= 7+15 = 22 cm

8 0
3 years ago
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