Answer:
This quadratic equation has 2 solutions.
Step-by-step explanation:
I assume the '?' in your question is meant to be power 2 (²), or else it would not be a quadratic equation. You could write it using the superscript version of 2.
We can solve this equation by expressing it in the form: ax² + bx + c
x² + 9x= -8
x² + 9x + 8 = 0
Now if you know the discriminant, you can simply plug in your values of a, b, and c to see how many solutions there are.
In this case, you would not need the discriminant as there are whole-number factors and hence this can simply be factorised.
x² + 9x + 8 = 0
(x + 8)(x + 1) = 0
For this equation to be true (= 0), x can equal -8 OR -1.
Hence, this quadratic equation has 2 solutions.
i need some help asap no rocky
Answer:
This is way out of my level sorry. Thanks me
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
math
Two planes take off from the same airport at approximately the same time. Plane A has an airspeed of 600 mph
and travels in the direction S 20° W. Plane B has an airspeed of 450 mph and travels in the direction N 35° E.
Which diagram represents the distance, x, between the planes?
Answer:
B
Step-by-step explanation:
edge 2020
Answer: option B
Step-by-step explanation:
edge 2023
Help quick simple works out
Answer:
( x + 5 ) · ( x + 1 )
Step-by-step explanation:
-Factoring by grouping-
First, split the middle term into two parts that are factorable by the other variables.
x² + x + 5x + 5
Factor the parts
x · ( x + 1 ) + 5 · ( x + 1 )
( x + 5 ) · ( x + 1 )
Answer:
C
Step-by-step explanation:
Given
x² + 6x + 5
Consider the factors of the constant term (+ 5) which sum to give the coefficient of the x- term (+ 6)
The factors are + 1 and + 5 , since
1 × 5 = + 5 and 1 + 5 = + 6, thus
x² +6x + 5 = (x + 1)(x + 5) → C
Jake has a piece of rope that is 5.5 yards long. What is the length, in inches, of Jake's rope?
O 180.5 inches
O 187.2 inches
O 186 inches
O 198 inches
How do I find slope and y-intercept??? Please help me!!
The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
There are 36 boys and 12 girls at the Zephyrs baseball game practice. What is
the ratio of boys to girls?
a 4:1
C. 1.4
b. 3:1
d. 1:3
Answer:
Step-by-step explanation:
the ration of boys to girls will be:
36/12=3/1
choice b
another way
36 boys.........................12 girls divide by 6
6 boys.............................2 girls divide by 2
3 boys.............................1 girl
Jordan bought an all-in-one printer that regularly sells for $249.99 at the markdown rate of 32%.
Answer: 167
Step-by-step explanation: 249.99 - 32% is 167
Translate the sentence into an equation. Four less than a number is 17. Which equation is correct?
x - 17 = 4
X - 4 = 17
x + 4 = 17
x + 17 = 4
Answer:
b
Step-by-step explanation:
A factory employs over 3000 workers, of whom 30% are women. If the 15 members of the union executive committee were chosen from among the workers without regard to gender
Answer:
I think 4000 worker and I will be there at some point today and I
Jimmy scored 49 goals in soccer this season.tommy scarred 7 times fewer goals how many goals did tommy score
Your baseball team has a goal to collect at least 160 blankets for a shelter. Team members brought 42 blankets on Monday and 65 blankets on Wednesday. Write and solve an inequality to find out how many blankets the team must donate on Friday to make or exceed their goal?
A forest covers 59,000 acres. A survey finds that 0.3% of the forest is old-growth trees. How many
acres of old-growth trees are there?
There are acres of old-growth trees.
(Type an integer or a decimal.)
Enter your answer in the answer box.
Answer: 117
Step-by-step explanation: To figure this out, you would have to multiply 59,000 by 0.3% decimal form which is 0.003
D 2. Which of the following is correctly written in Standard Form?
A 3/7x + 2y =9
B y= 3/7x+6
C 5x – 4y = 9
D -3x + 7y = 12
Pls help me
The equations that are correctly written in standard form are
A. 3/7x + 2y =9
C. 5x – 4y = 9
D. -3x + 7y = 12
Standard form of a Linear equationsFrom the question, we are to determine which of the given equations are written in standard form
The standard form of a linear equation is Ax + By = C.
Where A, B, and C are constants,
and
x and y are variables
Hence, the equations that are correctly written in standard form are
A. 3/7x + 2y =9
C. 5x – 4y = 9
D. -3x + 7y = 12
Learn more on Standard form of a Linear equations here: https://brainly.com/question/1293412
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Please help me with 9
Answer:
C=35x+75
It would cost $425 for 15 people
Step-by-step explanation:
If y varies directly as x and x=2 when y=−4, find y when x=−6.
Equation: ____________
Solution: y = ___________
Answer:
Equation: x × -2 = y
Solution: y = 12
Step-by-step explanation:
if (x = 2) is (y = -4) then (x = 1) is (y = -2) so if (x = -6) is (y = 12) if we follow the equation [x × -2 = y] which was found using the first set of variables and dividing each by 2.
The length of a rectangle is three times its width. If the area of the rectangle is 243 m squared, find it’s perimeter
Answer: 72
Step-by-step explanation:
L= 3W
area of a rectangle A= LxW
replace L with 3 W
A=3W*W= 3w^2
243=3W^2
243/3=W^2
81=w^2, and W=9
L=3*9=27
P= (L+W)=2(27+9)=72
4 5/6 x 2/5 what is this answer
Answer:
[tex]1\frac{14}{15}[/tex] or exact form [tex]\frac{29}{15}[/tex]
Step-by-step explanation:
Um bc im trap bunny bubbles
what is the equation for (4, 9.4) and (-3, -9.5)
Answer: I got an eqaution I hope it is basic
Step-by-step explanation:
4 times 9
9 - (-3 ) times -9 + 5
Enter a range of values for x.
+
42°
3x+156
23
21
[ ? ]

Answer:
-5<x<9
Step-by-step explanation:
It took me a while to find figure it out.
A salesperson sold 20 cars last month. Seven of the cars sold were red. What percent of the cars sold were red?
There are 42 female performers in a dance recital. The ratio of men to women is 2:3. How many men are in the dance recital
Answer:
28
Step-by-step explanation: This should be 28. 42 divided by 3 is 14. Why would you divide it by 3? Because the full ratio is 2:3. So 42 divided by 3 is 14. Then you add fourteen twice, for the two in the ratio. Fourteen plus fourteen is 28.
Watch help video
If using the method of completing the square to solve the quadratic equation
X2 – 9x + 38 = 0, which number would have to be added to "complete the
square"?
Answer:
Step 1 Divide all terms by a (the coefficient of x2).
Step 2 Move the number term (c/a) to the right side of the equation.
Step 3 Complete the square on the left side of the equation and balance this by adding the same value to the right side of the equation.
hope this help
but this is little info dont worry i will answer your question just in a minute
Step-by-step explanation:
Identify the radius of the circle.
Help ASAP pls!!!
*its hw*!
Which statements are true? Select all that apply.
Centigrams are larger than decigrams.
Hectometers are smaller than kilometers.
Dekaliters are larger than kiloliters.
Grams are smaller than dekagrams.
A 2-column table with 7 rows. Column 1 has entries kilo, hecto, deka, unit, deci, centi, milli. Column 2 has entries 1,000, 100, 10, 1, 0.1, 0.01, 0.001.
Answer:
A and C
Step-by-step explanation:
Answer:
b and c
Step-by-step explanation:
im right
hi my question is what is 72x13
Answer:
936
7 2
× 1 3
2
2 1 6
7 2 0
9 3 6
Brainleist?
A 22-ounce casserole contains 8 servings. How many ounces are in 1 serving of the casserole?
Answer:
the answer is 2.75 to this question
Answer:
2.75
Step-by-step explanation:
22 divided by 8 will get the ounces per serving.
Please help ASAP !! I’ll give brainleist
Answer:
x=12
y=9
Step-by-step explanation:
Since the two triangles are equal, the hypotenuse of each are equal as well, meaning 2x is equal to x+12. 2 times 12 equals 24, and 12+12 also equals 24.
the shorter sides are also equal to each other, so (y+5) equals (2y-4). 9+5 equals 14, and 2 times 9 minus 4 also equals 14.
what word problem would fit for 7x+10=-3x-2
Answer:
A number is multiplied by 7 and the added to 10 and it is equal to when -3 is multiplied by the same number and then 2 is taken away. Find the number.
Step-by-step explanation:
interpretation: 7x+10=-3x-2
The x-intercept for the line 2x + 3y = 18 is (x, 0). What is the value of x?
Answer:
The answer is nine :)
Step-by-step explanation:
percent change of 14 books to 40 books
Answer:
185.714285714%
A change from 14 to 40 represents a positive change (increase) of 185.71428571428572%