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Bond [772]
3 years ago
13

Determine the direction that this parabola opens: y = -5x2 - 10x - 13

Mathematics
2 answers:
babunello [35]3 years ago
8 0
The parabola opens downwards












Pie3 years ago
7 0

Answer:

sorry cant :(

Step-by-step explanation:

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Solve for x
vova2212 [387]
\frac{x-8}{2} =-3
Common denominator  is 2
\frac{\not2(x-8)}{\not2} =2(-3)
x-8=2(-3)
x-8=-6
Add 8
x=-6+8
x=2
The answer is : D.2
5 0
3 years ago
You have a piece of rope that is 10 feet long. You want to cut it into 1 3/4 foot pieces. How many pieces can you make and how m
dexar [7]

Answer:

5 whole number, 5/7

Step-by-step explanation:

10 ÷ 1 3/4

10 ÷ 7/4

10 x 4/7

40/7 or 5 5/7

3 0
3 years ago
I want to solve this equation (x+2)^2
olchik [2.2K]
Okay, so powers are multiplied out of parenthesis. 

Every number of a variable has 1 power. 

x^2 + 2^2

x^2+4

I hope this helped!
<em>~cupcake</em>
7 0
4 years ago
A line passes through the points (3,14) and (7,18) Write a linear function rule in terms of x and y for this line, Help! I might
MrRissso [65]

Answer:

y=1x+11

Step-by-step explanation:

1. Find the slope of the given points

\frac{y2-y1}{x2-x1}

\frac{18-14}{7-3} =\frac{4}{4} =1

2. Pick any point to find the y-intercept

(3, 14)

x=3, y=14, m=1

3. Substitute

y=mx+b

14=1(3)+b

14=3+b

14-3=b

11=b

4. Write the linear function rule

y=mx+b

y=1x+11

3 0
2 years ago
Read 2 more answers
A data set includes the following grades: 98, 94, 93, 82, 61, 80. Suppose that 61 is removed from the data. How is the median af
puteri [66]

Answer:

<u>If we remove 61 from the data set, the median changes from 87.5 to 93.</u>

Step-by-step explanation:

1. Let's calculate the median of the original data set:

Median = (3rd term + 4th term)/2 because the number of terms are even and our median mark is the average of the two middle marks, in this case, 82 and 93.

Median = (82 + 93)/2

Median = 87.5

2. Let's calculate the median of the data set removing 61:

Median = 3rd term because our median mark is the middle mark, in this case, 93. It is the middle mark because there are 2 scores before it (80 and 82) and 2 scores (94 and 98) after it.

Median = 93

7 0
3 years ago
Read 2 more answers
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