Answer:
x = -2 or x = -1/2
Step-by-step explanation:
We can just set up an equation where the quadratic is equal to -10, and then solve the equation:
[tex]2x^2+5x-8=-10\\2x^2+5x+2=0\\\\[/tex]
Now, factor:
[tex](2x+1)(x+2) = 0\\x=-2 \text{ or } x=-1/2[/tex]
Please help, this is my first time! Here is the question: Maria earned a total of $504 the last two days. She worked 8 hours the first day, 4 hours the second day. How much did Maria earn every hour? Please show how you did it, this is my first time, so please help.
Answer:
$42 per hour
Step-by-step explanation:
Well,
She got $504 in total
8 + 4 = 12 (the total number of hours worked)
To find out how much she earned per hour you'll need to divide.
$504 ÷ 12
which equals $42
Answer:
Maria earned $42 per hour.
Step-by-step explanation:
First, we need to add the total amount of hours she worked.
8 + 4 = 12
Next, we need to divide 504 and 12 to see how much she earned per hour.
504 ÷ 12 = 42.
So, Maria earned $42 per hour.
I hope this helps you! Welcome to Brainly. Good luck and have a great day. :)
Diego made the shape on the left, and Elena made the shape on the right. Each shape uses 5 circles.
Select all the true statements.
Answer:
I think 2 and 3
Step-by-step explanation:
Write each equation in slope intercept form the graph
I believe the answer is 4/5x +2. Sorry if I’m wrong.
Select all the ratios that represent unit rates.
A.
7 days
1 book
B.
15 gallons
350 miles
C.
1 year
$30,000
D.
1 minute
90 words
E.
5 students
5 teachers
Answer:
The answers to this problem are B, D, and A.
Step-by-step explanation:
I just did the problem. I always get 100% on these quizzes.
help me I will give brainiest
Answer:
the first one is .... X = - 25/2
the second one is .... X= -3
Step-by-step explanation:
have a nice day!!!
Answer:
the second one is .... X= -3
But the other guy was wrong, the first one is -25/2 not -25/5
Step-by-step explanation:
Find the value of a and b
Answer:
a=58
b=95
Step-by-step explanation:
i am too unmotivated to do any math even if its easy please help :)
Answer:
40% increase
Step-by-step explanation:
First, find the difference:
161-115=46
Then divide by the past price to get the percent increase:
46/115=.4=40%
HURRY PLS You are competing in a race. The table shows the times from last year's race. You want your time to be last year's median time with an absolute
deviation of at most 5 minutes. Complete the inequality to represent the time (in minutes) you hope to achieve.
Race times (minutes)
74 65 57 62
63 72 78 58
60 70 68 62
"Sonia had band practice 2 _1/3 hours on Saturday and 1_3/4 hours on Monday. How many total
hours did she practice those two days? *
Answer:
3_5/6 hours
Step-by-step explanation:
2_ 1/3 = 2_ 4/12
1_3/4 = 1_6/12
2_4/12 + 1_6/12 = 3_10/12
3_10/12 = 3_5/6
Find the distance between the two points in simplest radical form.
n.
(6, -9) and (1,3)
Help?
[tex]\large\underline{\underline{\red{\sf \blue{\longmapsto} Step-by-step\: Explanation:-}}}[/tex]
Given to points to us are :-
( 6 , -9)( 1 , 3 )Now , we can use Distance Formula , which is :-
[tex]\boxed{\purple{\tt Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}}}[/tex]
Here ,
x1 = 6 .x2 = 1.y1 = (-9)y2 = 3.→ Substituting the respective values ,
⇒ Distance = √ [ ( 6 - 1)² + ( 3 +9)² ] .
⇒ Distance = √ 5² + 12²
⇒ Distance = √ 25 + 144
⇒ Distance = √ 169 .
⇒ Distance = 13 units .
Hence the distance between two points is 13u.
True or False: These two equations are equivalent
5x + 18 = 32
18 = 80
-5(x) = -4x - 11
please help i don’t understand i need to evaluate the function
Answer:
x=11
Step-by-step explanation:
-5x=-4x-11
-5x+4x=-11
-x=-11
x=11
Multiplying 2×1 3/7 is equal to how much
Answer:
20/7 or 2 and 6/7
Step-by-step explanation:
This equation works out to 2/1 • 10/7, which we can easily see equals 20/7, or 2 and 6/7, by multiplying the numerators and denominators.
How many different four-digit alarm codes can be formed for a house alarm if
digits cannot be repeated?
Answer:
about 3000
Step-by-step explanation:
10 POINTS
Find intercepts and interpret their meaning.
Assignment
What is the x-intercept?
Answer:
-4
Step-by-step explanation:
The x- intercept is -4 because it is where the line crosses the x-axis.
2) If 20 workers can build a house in 45 days, how many more workers are needed
to complete it in 30 days?
А
6
B
15
С
10
D
18
Answer:
B
Step-by-step explanation:
If ∠1 and ∠2 are complementary, m∠1 = (8x-6)°, and m∠2 = (14x+8)°
URGENT PLEASE HELP
Answer:
D
Step-by-step explanation:
Which of the following functions has a rate of change of 5?(2 points)
f(5)=300 and f(7)=290
f(5)=225 and f(10)=250
f(3)=278 and f(5)=320
f(2)=317 and f(5)=296
Answer:
f(5)=225 and f(10)=250
Step-by-step explanation:
Find the length indicated
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
The answer is choice D because if you subtract 7 from 13 you'll get 6.
Complete the equation.
X 2 = 2 x 10
Answer:
2√5
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
10x2=20
20x2=40
Which statement represents the parallel postulate in Euclidean geometry, but not elliptical or spherical geometry?
1 .Through a given point not on a line, there exists no lines parallel to the given line through the given point.
2.Through a given point not on a line, there exists exactly one line parallel to the given line through the given point.
3.Through a given point not on a line, there exists more than one line parallel to the given line through the given point.
4.Through a given point not on a line, there exists exactly three lines parallel to the given line through the given point.
Answer:
2.Through a given point not on a line, there exists exactly one line parallel to the given line through the given point.
Step-by-step explanation:
The object of "Euclidean geometry" (more commonly called "plane geometry") is, in principle, the study of the shapes and properties of natural bodies. However, geometry is not an experimental science since its object is not to study certain aspects of nature but a necessarily arbitrary reproduction of it.
After the definitions, Euclid then poses his famous postulates (his requests), the fifth of which has remained Euclid's postulate, often called axiom (or postulate) of parallels and which was the subject of much research and controversy as to its necessity:
Given two points A and B, there exists a line passing through A and B. Any segment [AB] can be extended into a straight line passing through A and B. For any point A and any point B distinct from A, we can describe a circle with centre A passing through B. The whole right angles are always equal to each other. By a point outside a line, we can draw a parallel and only one to this line.From the above explanation, we could deduce that the correct option is Option 2.
Answer:
The answer is B, Through a given point not on a line, there exists exactly one line parallel to the given line through the given point.
Step-by-step explanation:
If Kynlee can walk 3/5 mile in 1/3 of a day, how far can she walk in 1 day.
Answer:
1 and 4/5 mile or 1.8 miles
Step-by-step explanation:
You would multiply 3/5 by 3 because in 1/3 day she can walk 3/5 miles, you want to find out how much she can walk in a day! Hope this helps! If you liked this answer, a brainliest would much be appreciated!
Answer:
9/5 i believe ( or 1 4/5 )
Step-by-step explanation:
multiply 3/5 by 3, since 1/3 is only a part of the day
( im sorry if this is wrong :( )
The Earth has a mass of about 6 x 1024 kg. Neptune has a mass of 1 x 1026 kg.
How many times bigger is Neptune than Earth?
Give your answer in standard form to the nearest whole number.
Please help I really need it
Answer: m< MIH is 34°
M< AVM is 70°
And the angle of the obtuse angle formed at the intersection of AV and HI is 104°
Step-by-step explanation: starting with m<MIH, AH is parallel to MI, so that would make the same angle H has the same for I. (34°)
Next is m<AVM. The angle of m<LAH is 110°. So the angle of m<HAV (because it's supplementary of it) is 70 (110+70=180). Which makes m<AVM 70° since it's vertical to each other.
Since we got those answers, the next one you just plug it in, and the answer would be 104°
It’s a written I just took the test
Um... is there a question?
Determine the percentage of increase/decrease of the following exponential equation.
y = 4(1.75)x
Hello, please help me with the following questions attached. It’s due at 11:59 pm and I really don’t know cause tbh I haven’t been paying attention in that class.
Answer: 3) 3/4 5) (0,1)
Step-by-step explanation:
For number 3 you go rise over run. From the point on the y-axis you rise 3 and then run 4 to the x-axis if that makes any sense
1. please start to pay attention
1. an undefined slope is vertical
2. 90-70/15-3 = 20/12 = 10/6 = 5/3
3. 3/4 (rise over run)
4. slope: -1/5 y-intercept: 12
5. 1
6. y = 1/2x +b
3 = 1/2(1) +b
3 = 1/2+b
subtract 1/2 from both sides
2 1/2 = b
y = 1/2x + 2 1/2
Barry and Michael lifted and moved a television that weighed 45 pounds. About how much did the television weigh in kilograms? (1 pound ≈ 0.454 kilograms)
Answer:
I NEED HELP WITH THIS TWO
Step-by-step explanation:
? i need help two
A race is 20 miles long . There is water station every 1 1/4 miles along the race route. How many water stations are needed for this race ?
Answer:
16
Step-by-step explanation:
just divide 20 by 1 1/4
How many real solutions are in the equation 8-4x=0