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stealth61 [152]
3 years ago
12

Factor completely x2+ 9x + 20

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0

Answer:

(x + 5) (x + 4)

Step-by-step explanation:

Simplify the following:

x^2 + 9 x + 20

The factors of 20 that sum to 9 are 5 and 4. So, x^2 + 9 x + 20 = (x + 5) (x + 4):

Answer: |

| (x + 5) (x + 4)

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Mike’s mom made a batch of soup that was 8 4/5 cups. Each serving is 1 1/2 cups. How many servings of soup did Mike’s mom make?
kipiarov [429]

Answer:

B) 5 and 13/15 servings

Step-by-step explanation:

Divide 8 4/5 by 1 1/2 to get 5 and 13/15

6 0
2 years ago
The table shows the value of an account x years after the account was opened. Based on the exponential regression model, which i
julsineya [31]

Answer:

Correct choice is B

Step-by-step explanation:

The equation of the exponential regression model is y=a\cdot b^x.

1. When x=0, y=a\cdot b^0=a=5,000;

2. When x=2, then

y=5,000\cdot b^2=5,510\Rightarrow b^2=\dfrac{5,510}{5,000}=\dfrac{551}{500}=1.102,\ b=\sqrt{1.102}\approx 1.05.

3. The equation of the function is y=5,000\cdot (1.05)^x. Note that

  • y(5)=5,000\cdot (1.05)^5\approx 6,381\approx 6,390;
  • y(8)=5,000\cdot (1.05)^8\approx 7,387\approx 7,390;
  • y(10)=5,000\cdot (1.05)^{10}\approx 8,144\approx 8,150.

Therefore,

y(12)=5,000\cdot (1.05)^{12}\approx 8,979\approx 8,980.


4 0
3 years ago
Read 2 more answers
Can someone answer this question
emmasim [6.3K]

Answer:

d= c side

Step-by-step explanation:

sorry if i'm wrong

6 0
2 years ago
Read 2 more answers
I attached the question below :)
jenyasd209 [6]

Answer:

slope = 2, vertical intercept = 10

Step-by-step explanation:

The intercept, also called the y-intercept, is where the line crosses the y-axis

The vertical line (y-int) is crossed at 10, so vertical intercept = 10

Slope equals rise over run:

The line goes up 10 and moves right 5

10/5 = 2

This line has a positive 2 slope

5 0
2 years ago
How to solve -2(1-7n)-5n=34
OLEGan [10]

-2(1-7n)-5n=34

Multiply the bracket by -2

(-2)(1)=-2

(-2)(-7n)=14n

-2+14n-5n=34

-2+9n=34

Move -2 to the other side. Sign changes from -2 to +2.

-2+2+9n=34+2

9n=34+2

9n=36

Divide by 9 for both sides

9n/9=36/9

n=4

Answer: n=4

6 0
2 years ago
Read 2 more answers
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