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stellarik [79]
3 years ago
14

FUDGEE help pleasee

Mathematics
2 answers:
Nastasia [14]3 years ago
4 0

Answer:

x= -7 and x= -3

Step-by-step explanation:

(x+7)(x+3)=0 (Think about the numbers that will add to 10 and multiply to 21)

x= -7 and x= -3

hoa [83]3 years ago
4 0

Answer:

x = −3 or x = −7

Step-by-step explanation:

Let's solve your equation step-by-step.

x^2 +  10x + 21 = 0

Step 1: Factor left side of equation.

(x+3) (x+7) = 0

Step 2: Set factors equal to 0.

x + 3 = 0 or x + 7 = 0

x = −3 or x = −7

I hope this helps you with your assignment and have a fantastic day! :D

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Every irrational number is a real justify your answer<br>​
vivado [14]

Step-by-step explanation:

A real number MUST be able to be represented on a number line.

All numbers can be placed on a number line including irrational numbers.

Numbers like π can be placed between 3.13 and 3.15. It is a number.

Numbers like x or ∑ isn't a "REAL" number because it has no value.

5 0
4 years ago
Which is equivalent to sin 51°?<br> A- cos 51<br> B- cos 39<br> C- tan 39<br> D- tan 51
fomenos

Answer:

Ans = B

Step-by-step explanation:

The answer is B

Have a great day

5 0
3 years ago
What is the maximum vertical distance between the line y = x + 20 and the parabola y = x2 for −4 ≤ x ≤ 5?
Fofino [41]

The vertical distance can be found by subtracting parabola from the given line.

Given line equation is y= x+20

Equation of parabola is y= x^2

Subtract parabola from line equation

so y = x+20 -x^2

y = -x^2 + x + 20

Now we take derivative to find out the maximum that is the vertex

y' = -2x + 1

Now we set derivative =0 and solve for x

0 = -2x+1

2x = 1

x=\frac{1}{2}

Now we plug in x values in y= -x^2 + x + 20

y = (\frac{1}{2}^2) + \frac{1}{2}  + 20

Take common denominator

y= \frac{81}{4}

So our maximum vertical distance is \frac{81}{4} at x= \frac{1}{2}

7 0
3 years ago
Read 2 more answers
Answer this please lol
11111nata11111 [884]
Answer: B

this is because you are taking out the smaller number that was essentially dragging the data set down. when that is removed the mean and median are now raised because there is no outlier to drag it down. the median will be less than the mean because the median is the middle number of the kittens while the mean is the average number of the kittens.
7 0
4 years ago
Read 2 more answers
Potted plant:18.69<br> Discount rate: 8.25%
ale4655 [162]

What is the question for me to answer

3 0
3 years ago
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