Solve x ^ 2 + 10x = -21.
x = 7 and x = 3
x = -7 and x = -3
x = - 7 and x = 3
x = 7 and x = -3

Answers

Answer 1

Answer:

X = -7, -3

(AKA B)

Answer 2

Answer:

x= -7 and x= -3

Step-by-step explanation:

x^2 + 10x = -21

= X^2 + 10x + 21  (Bring the -21 to the other side to make it positive)

factor the equation...

= (x+7)(x+3)

x= -7 and x= -3

if you need help on how to factor I can help


Related Questions

Please Help!!!! Find two consecutive odd numbers whose product is 47 more than their sum.

Answers

7 and 9

7 x 9 = 63

7+9=16

63-16 = 47

Is 4 hours greater or less than 14,400 seconds? (Or equal too)

Answers

Answer:

Equal to.

Step-by-step explanation:

The easiest way to figure this out is to convert 14,400 seconds to hours. There are 60 seconds in a minute and 60 minutes in an hour. So, divide 14,400/60, which is 240. This is now 240 minutes. To figure out minutes into hours, divide 240/60, which is 4. 4=4, so 4 hours equals 14,400 seconds.

Hope this helps you out...have a good day c:

What is the value of 3(4(-2)+5x3)-2(7(-2)-3x3)

Answers

What is the value of 3(4(-2)+5x3)-2(7(-2)-3x3)
Answer: 67
The answer to you question is 67

What is the equation of this line?

y=1/2x-3
y=-1/2x-3
y=-2x-3
y=2x-3

Answers

Answer:

y=1/2x-3

Step-by-step explanation:

y=mx+b where m equals the slope and b equals the y-intercept. The slope is 1/2 and the y-intercept is -3. Hope this helps!

Daddy becuase I know it is becuase yeah


A deck of cards contains 52 cards. These cards consist of four suits (hearts, spades, clubs, and diamonds) of each of the following 2.3.4.5, 6, 7, 8, 9, 10, jack,
queen, king, and ace. If a card is chosen from a deck of cards, find the probability of drawing a 6
The probability of drawing a 6 is
(Type a whole number or a simplified action.)

Answers

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Probabilities.

Here, In the game of cards, we have total number of 52 cards in a deck. Since here we have to find the probability of Card 6 from the whole deck.

Let's solve,

Total Number of Cards we have = 52

Total number of 6 numbered Cards in deck = 4

Hence, probability = Favourable Outcomes ÷ Total No. of Outcomes.

So, the Probability of getting a 6 Card = 4/52

= 1/13

Hence the probability is 1/13.

which equation represents the line that passes through points (5,4) and (-5,0)

Answers

Answer:

-5

Step-by-step explanation:

0-4

over

-5-(-5)

slope= -4/0

Hellllllllp please!!!!!!!!!!!

Answers

Answer:

ok, tell me what you need, I will be glad to help!!

Step-by-step explanation:

A scale model of a human heart is 190 Inches long. The scale is 34 to 1. How many Inches long is the actual
heart? Round your answer to the nearest whole number.

Answers

Answer:

6 inches long

Step-by-step explanation:

190/x = 34/1

34x = 190

x= 5.588235294

rounded to the nearest whole number is 6

By coincidence, Kimberly’s Paint Supplies sold equal quantities of two paint colors yesterday: yellow and blue. All yellow paint comes in 9-liter containers while blue paint is sold in 12-liter containers. What is the smallest amount of each paint color the store must have sold?

Answers

Answer:

36 liters

Step-by-step explanation:

Yellow paint = 9 liters containers

Blue paint = 12 liters containers

Kimberly’s Paint Supplies sold equal quantities of two paint colors yesterday

What is the smallest amount of each paint color the store must have sold?

Find the Lowest common multiple of 9 liters and 12 liters

9 liters = 18, 27, 36, 45, 54, 63, 72, 81, 90, 99

12 liters = 24, 36, 48, 60, 72, 84, 96, 108

The Lowest common multiple of 9 liters and 12 liters is 36 liters

Therefore, the smallest amount of each paint color the store must have sold to have equal quantities of two paint colors yesterday is 36 liters

Answer:     The answer is 9.

Step-by-step explanation:

Because I got it right on ixl.

m+7=3+m+4
what is the value of m

Answers

Answer:

21

Step-by-step explanation:

bc 9+10

Need a quick answer please

Answers

Answer:

21

Step-by-step explanation:

Identify the slope and y-intercept of the function y=-2x+ 1.
A. The slope is 1.
The y-intercept is (0,2).
B. The slope is 1.
The y-intercept is (0, -2).
C. The slope is 2.
The y-intercept is (0,1).
D. The slope is -2.
The y-intercept is (0,1).

Answers

Answer:

The slope is -2 and the y-intercept is 1

ANSWER = D!

Step-by-step explanation:

Please mark brainliest it is appreciated!

Carlos picked one of four equations in the table to solve. Carlos correctly solved the equation he chose. His answer was x = 5.
Equation 1 6x + 40 = 82
Equation 2 12x- 1 = 2
Equation 3 2x + 21 = 31
Equation 4 18x+ 9 = 13
Which equation did Carlos choose to solve?

Answers

Equation 3 because 2x5 is 10 and add that to 21 is 31!

Functions can be displayed as:
1.________________________________
2.________________________________
3.________________________________
4.________________________________

Answers

Answer:

Step-by-step explanation:

"A function can be represented numerically. "

"A function can be represented graphically."

"A function can be represented verbally. For example, the circumference of a square is four times one of its sides."

Hope this helps :D

determine if the triangles are congruent or not?

Answers

Answer:

they are congruent

Step-by-step explanation:

both have the same size and angles, one is just translated

What does POI stand for? Explain what it means.

Answers

Answer:

Point of information.

Step-by-step explanation:

A point of information (POI) is a question or a statement, that is raised while a speaker of the opposing team is speaking. You are allowed to raise a POI at any time in the speech, but not during the protected time. Protected are the first and the last minute of the speech.

Hope this helped!

POI is a point of interest.

This means a certain data point someone is describing or talking about in a given scenario.

2x = 64 (Enter the X)

Answers

Answer:

x=32

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

[tex]2x = 64[/tex]

Divide by the coefficient of x which is 2

[tex] \frac{2x}{2} = \frac{64}{2} [/tex]

[tex]2x \div 2 = 1 \\ 64 \div 2 = 32[/tex]

Hope it helps <3

Please help asap!!!!!!

Answers

Answer:

I think the answer is srry if I'm wrong but it's 22 or 42

Step-by-step explanation:

ur welcome srry if I got it wrong

The total bill of a meal at a restaurant is 25x-115. Five friends agree to split the cost of the meal equally. What could you do to find the amount that each person must pay? Explain. ​

Answers

Answer:

Sample response: Factor the GCF of five out of the total bill. Divide both terms of the expression by 5. The result is 5x – 23, which is the expression that can be used to find the amount each person pays.

i took the test.

Answer:

Factor the GCF of five out of the total bill. Divide both terms of the expression by 5. The result is 5x – 23, which is the expression that can be used to find the amount each person pays.

Step-by-step explanation:

I took the test, I got 100%

solve the inequality -3/10x -7 < 1/2

Answers

Step-by-step explanation:

-3/10x=1/2+7

=15/2

x=15/2×10/-3=-25

-25<1/2

Difference between they both was

1/2-(-25)

1/2+(25)

=51/2

=25.5

if y varies directly with x and x increases by 2 , is it possible to determine by how much y increases or decreases . yes or no and why

Answers

Yes

Since it varies directly, you would have to find what percentage of x the value 2 is and increase y by the same percent

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

y ∝ x

y = kx

Where k is a constant and it can be any integer.

If y varies directly with x.

Yes, it is possible to determine by how much y increases or decreases as x increases.

If x increases by 2 then y also increases by 2.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

We have,

y varies directly with x.

This can be written as an equation,

y ∝ x

y = kx

Where k is a constant and it can be any integer.

Now,

If x increases by 2.

y = 2k

If k = positive integer

Then y will increase by 2k.

If k = negative integer

Then y will decrease by -2k

So,

Yes, it is possible to determine by how much y increases or decreases.

Thus,

If y varies directly with x.

Yes, it is possible to determine by how much y increases or decreases as x increases.

Learn more about equations here:

https://brainly.com/question/17194269

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SOMEONE PLEASE HELP​

Answers

Answer:

15c+3b=66 and 25c+5b=110

Step-by-step explanation:

How many integers between 2020 and 2400 have four distinct digits arranged in increasing
order? (For example 2957 is one such integer)
(B) 10
(C) 15
(D) 21
e 28

Answers

Answer:

the answer is E

Step-by-step explanation:

We want to find how many integers are between 2020 and 2400 such that a criteria is meet, and the criteria is that the four digits are different and are arranged in increasing order.

We will see that there are 15 of these numbers between 2020 and 2400, so the correct option is C.

---------------------------

To count the number of digits that meet the given criteria, we first need to analyze how the criteria is.

If the numbers must be in increasing order, then the smallest number that can be in the hundreds place is 3 (the smaller integer larger than 2).

so we have:

23__

The number next to the 3 can be a 4, for example:

234_

And the final number can be any number larger than 4, so we have {5, 6, 7, 8, 9} a total of 5 options.

If instead of a 4, the number next to the 3 is a 5, we have:

235_

And the number next to the five can be any digit larger than 5, so now we have 4 options.

If instead of a 5, we have a 6, we will have 3 options to put after the 6.if instead of a 6, we have a 7, we will have 2 optionsif instead of a 7, we have an 8, we will have 1 option.

Now, we can't have another number than a 3 in the hundreds place, because if we put a 4 there, we are out of the range, and 3 is the smallest digit that we can use there.

Then we already saw all the possible numbers that we can make, adding the numbers of options that we got above we will get:

5 + 4 + 3 + 2 + 1 = 15

This means that are 15 of these numbers between 2020 and 2400. Then the correct option is C.

If you want to learn more, you can read:

https://brainly.com/question/3730774

plz help :) will mark brainliest if correct

Answers

Answer:

1st

Step-by-step explanation:

If the point of the preimage is (5,2) and the point of the image is (1,2), what RULE was applied to the preimage to obtain the image?

A) (x, y + 4)
B) (x + 4, y)
C) (x - 4, y)
D) (x, y - 4)

Answers

Answer: Choice C)  (x-4, y)

Explanation:

We have x = 5 turn into x = 1. We need to subtract 4 from the x coordinate to get this. Therefore x turns into x-4.

The y coordinate stays at y = 2 the entire time, so y isn't altered. We have y map to y.

Overall, the rule is [tex](x,y) \to (x-4, y)[/tex] which translates the point 4 units to the left.

intercept form
Q (2, -4) R (8,8)

Answers

Answer:

The answer is Q(-4, 2) R(8,8)

The actions that cannot be taken as a result of an action that is taken are known as the ____ of the actions taken.

A. Expense
B. Price
C. Downside
D. Opportunity cost

Answers

Answer:

D.

Step-by-step explanation:

opportunity cost

The actions that cannot be taken as a result of an action that is taken are known as the opportunity cost of the actions taken.

What is the opportunity cost?

" he opportunity cost of a particular activity option is the loss of value or benefit that would be incurred by engaging in that activity, relative to engaging in an alternative activity offering a higher return in value or benefit."

Let say, a homeless man has only $8. He is hungry and don't have cloths to wear. Now, if he buys a burger and some chocolates with all the money he has, then he cannot use that money to buy anything else.  

Therefore, he will not be able to buy any cloth as he spent his money on food. If there is any t-shirt available at the same cost, then the cloth is the opportunity cost.

Therefore, the actions that cannot be taken as a result of an action that is taken are known as the opportunity cost of the actions taken.

Learn more about opportunity cost here: https://brainly.com/question/14130480

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1. In the diagram shown of AABC, CDA, CEB, DE // AB making AABC ⓇADEC, DE = 4cm,
AB = 10cm, CD = x and DA = x + 3. What is the length of AC?

Answers

Answer:The value of x is 11 and the measure of each sides are, 74 cm,74 cm and 37 cm. ... If CD equals 9x - 25, DE equals 6X + 8, CE equals 10 x - 73. Since,. CD=DE.

Step-by-step explanation:

Show work on this pls

Answers

Answer:

6.29

Step-by-step explanation:

so you know that the unknown side which is 7x + 27 equals 71.

You can begin by subtracting 27 from 71 which will give you 44.

you then know that 44 = 7x

then you just have to do 44 divided by 7 to find x which isss...

look above at answer  

At the store 5 lbs of apples costs $6.70. What is the constant of proportionality that relates x, pounds of apples to y, cost in dollars?

Answers

Answer:

5x=6.70y

Step-by-step explanation:

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