Answer:
Use Calculator
Step-by-step explanation:
E
Use the discriminant to describe the number of solutions of the equation 2x^2+5x−12=0
Multiple choice question.
A)
The discriminant is 121, and the equation has two real, rational roots.
B)
The discriminant is 121, and the equation has one real, rational root.
C)
The discriminant is –71, and the equation has two real, irrational roots.
D)
The discriminant is –71, and the equation has two complex roots.
Answer:
a = 2
b = 5
c = -12
The discriminant is sqr root (b^2 - 4*a*c)
= sqr root (25 -4 * 2 * -12)
= sqr root (25 + 96)
= sqr root (121)
Answer is A)
Step-by-step explanation:
need help please <33!!!
Answer:
i tink its 65
Step-by-step explanation:
The speed of a motorcycle is changing according to the equation y = -2x +30, where x = the time in seconds
and y = the speed in miles per minute. Which is a true statement about this equation?
О O a
Ob
Ос
Od
It's not a linear equation, but its grapg is a straight line.
It is a linear equation, and its graph is a straight line.
It's not a linear equation and its graph is not a straight line.
it's a linear equation, but the graph is not a straight line
Answer:
The given line y = -2x +30 is a straight line as it is written in the
form y = mx + b.
The graph of the line y = -2x +30 is also straight and attached below.
Step-by-step explanation:
Given the equation
y = -2x +30
We know that the slope-intercept form of the line equation is
[tex]y=mx+b[/tex]
Where m is the slope and b is the y-intercept
The graph of y=mx+b is a straight line as it is the line equation.Writing the equation in the slope-intercept form
y = -2x +30
y = mx + b
Thus,
m = -2
b = 30
Thus, the given line y = -2x +30 is a straight line as it is written in the
form y = mx + b.
The graph of the line y = -2x +30 is also straight and attached below.
Solve for x plz. Ens
Answer:
9
Step-by-step explanation:
triangles always = 180 degrees
we know there is a 90 degree angle so 180-90=90
we know the other angle is 20 degrees so you do 90-20 which equals 70
now we know that the angle with x equals 70
so then you do 70-16 which equals 54
now just divide 54 by 6 and you get 9
so x=9
hope this helped ;)
The equation y-3--2(x-4) is written in point-slope form. What is the equation in slope-intercept form?
is
o y=-2x - 1 /
O y=-2x+
O y=-2x + 1 / 2
O y=-2x - 1 / 2
7
6
Please help fast thanks!
Answer:
Its y=-2x+7/6
Step-by-step explanation:
Help Plssssssssssss !!!!!!!!!!!
Jeremy was 45 inches tall when he started kindergarten. He grew an average of 2.5
inches every year. Jeremy is now 62.5 inches tall.
Which equation can be used to find how many years ago Jeremy started kindergarten,
and how many years ago was it?
Answer:
subtraction
Step-by-step explanation:
its subtraction because if you do 62.5-2.5 it = 60 and then 60-2.5=57.5 57.5-2.5=55 55-2.5=52.5 52.5-2.5=50 50-2.5= 47.5 47.5-2.5 = 45 s so it was 7 or 8 years ago idk count them see how many times i did it
why would you choose a mortgage over other methods of credit?
Answer: The only reason would be the benefits of a mortgage plan. which includes, helping you to maintain your credit score, money available to you when need for curtain life decisions, and there are many tax benefits that come with a mortgage plan! Hope this helps! best of luck!
PLSSSSS HELPPPPPPP ASAPPPPPP!!!! I WILLL GIVE BRAINLIEST!!!!
Answer:
A and D represent linear functions
#5. What's the difference between a terminating decimal and non-terminating
decimal?
Answer:
A terminating decimal ends while a non-terminating decimals repeats itself.
Step-by-step explanation:
2.50-terminating decimal
2.3333...-non-terminating decimal
Answer:
good answer thats was a very helpful answer
Lin bought x grams of sugar. Jada bought 3⁄4 more than that. what is the equation that will represents the relationship between the amount of sugar that Lin bought, x, and the amount of sugar that Jada bought, y.
Answer:
y = 7/4xStep-by-step explanation:
Lin bought x grams of sugar.
Jada bought 3⁄4 more than Lin bought.
The equation:
y = x + 3/4x ⇒ y = 7/4xhelp i don’t understand what this is
Answer:
s 3i I mean it's 3
Step-by-step explanation:
it is say what is the square root of 15 so what gives you 15 3
The surface area of the triangular prism pictured below is 204 square centimeters. What is the height of the prism?
Answer:
height x=21.5cm
Step-by-step explanation:
Surface area = 2+ area of triangles + area of the 3 rectangles
SA = 204
204 = 4*3 + x*5 + 5*4 + x*3
204 = 12 +20 +8x
204 -12-20 = 8x
172/8 = x
21.5 = x
The volume of a cube is 1,000cm³. What is the length of an edge?
If a population grows by 69%, what is the multiplier?
what is the importance of knowing the roots of real numbers
Answer:
While imaginary numbers offers unique insights, we live in a real world. Real numbers provide a model that fits many (most) of the day to day situations people encounter every day. Understanding real numbers and having a sense for what they are and ow they can be used to model 'the real world' is a skill every intelligent person must master.
I hope helps you and if you want you can give me a brainly crown only if you want
Will mark Brainliest just answer the following questions
Answer:
5,0
Step-by-step explanation:
The answer is 5,0
can someone help me pls!! asap
How do i graph q(x)=-3x
A recipe calls for 2 cups of flour and 3 eggs and it serves 8 people. If Mrs. Nguyen wants to make the recipe for her class of 32 students, how much flour and how many eggs should she use?
Answer:
She would need 8 cups of flour and 12 eggs.
Step-by-step explanation:
32 divided by 8 = 4 so you will then you multiplication and times everything in the recipe by 4.
UP Which number below is a prime number? O A. 78 B. 43 O C. 55 D. 48
Answer:
Hello. 43 is prime. All the other numbers are composite.:-)
Step-by-step explanation:
Can anyone plz help me
Answer:
They multiplied the exponents instead of adding.
Step-by-step explanation:
Essentially, 2^2 x 2^3 is (2)(2) x (2)(2)(2) which is 5, not 6
Answer:
when it says times it doesn't mean times the powers it means add
basically the first one is correct
what is the half of 4959?
Answer:
I thinks it's 4424
Step-by-step explanation:
I hope that help's
what is (7^6)^2 simplified
Answer:
13841287201
Step-by-step explanation:
7^6=117649
117649^2=13841287201
Answer:
[tex]\sf 7^{12}[/tex]
Step-by-step explanation:
Exponent rule:
[tex]\sf \boxed{\bf (a^m)^n=a^{m*n}}[/tex]
To simplify [tex]\sf(7^2)^6[/tex] multiply the powers.
[tex]\sf (7^6)^2=7^{6*2}[/tex]
[tex]\sf = 7^{12}[/tex]
scale A is the image figure of scale B
Answer:
x=20
Step-by-step explanation:
12.5/1.25=10
This means that to get from Figure B to A, you would need to divide by 1.25
So to get from Figure A to B, you would have to multiply by 1.25
16*1.25=20
110$ for 16ft find the unit rate
Answer:
6.875 dollars per feet
Step-by-step explanation:
110/16
6.875
look at the picture, pls help!!
Answer:
f(-1) = 12
f(1) - g(1) = 8
g(x) = 4 when x = 2
f(x) = g(x) when x = 3
Step-by-step explanation:
Read the graph.
Find the x - values on the x - axis and identify what y level the line is at.
Find the value of f (-2)for the function f (c) = 5x+8
F(-2) means to replace x in the equation with -2 and then solve.
5(-2) +8 = -10 + 8 = -2
The answer is -2
What is the answer to 13 and 16 (Giving brainliest)
Answer:
(b) 17 1/3
Step-by-step explanation:
The Questions above.
Answer:
It's B.9
Step-by-step explanation:
Because
11+9=20
20+9= 29
29+9= 38
The common difference is positive because the arithmetic sequence is increasing.
Answer:
B. arithmetic sequence; 9
Step-by-step explanation:
An arithmetic sequence is a sequence where there is a common difference between each term. A common difference is a number that is added to the previous term to get the current term. For a sequence to be considered arithmetic this common difference must remain constant. This sequence is arithmetic because each time 9 is added to the previous term to get the next one. So the common difference is 9 and B is correct.