Standard form of a quadratic equation: ax^2 + bx + c = 0
4x^2 - 5x + 10 = 2x
4x^2 - 7x + 10 = 0
Hope this helps!
I WILL GIVE BRAINLIEST
Answer:
A
Step-by-step explanation:
(f(-3+h)-f(-3))/h=(5(-3+h)^2-5(-3)^2)/h=(5*(-3+h-3)(-3+h+3))/h=-30*h/h=-30
please can someone help me?
Answer:
∠ 3 = 90°
Step-by-step explanation:
∠ 3 and ∠ 4 are adjacent angles on a straight line and sum to 180° , then
∠ 3 + ∠ 4 = 180°
∠ 3 + 90° = 180° ( subtract 90° from both sides )
∠ 3 = 90°
Which of the following steps were applied to ABC obtain AA'B'C?
12
8
B
6
A
-6
-2
4
6
10
A. Shifted 4 units left and 3 units down
B. Shifted 4 units left and 2 units down
C. Shifted 3 units left and 3 units down
D. Shifted 3 units left and 2 units down
Will give brainliest pls help!!!
Answer: B
Step-by-step explanation:
The transformation that took place to form A'B'C' is Shifted 4 units left and 2 units down.
What is transformation?A transformation is a process that manipulates a polygon or other two-dimensional object on a plane or coordinate system.
Given that, a triangle ABC has undergone a transformation to form A'B'C' we need to identify the steps of transformation
So, considering the point B and B', we see, that, x-coordinate of B is at 5 and that of B' is at 1, that mean there is a shift of 4 units left,
Now, consider the y-coordinate, we see, that B is at 9 and B' is at 7 that gives a downward shifting of 2 units.
Hence, the transformation that took place to form A'B'C' is Shifted 4 units left and 2 units down.
Learn more about transformation click;
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Is my answer correct?
I'm pretty sure you are :)
Surface area of triangular prism
Answer:
264 Km²
Step-by-step explanation:
cross sectional perimeter of the triangular prism= 9+8+7= 24Km
now,
total surface area= C.S.P × height of the figure
= 24 × 11
= 264 km²
In a sequence, the first term is 8 and the common difference is -2. The 18th term
of this sequence is
1) – 34
2) - 42
3) - 26
4) 26
Name the postulate or theorem you can use to prove the triangles congruent
SSS
AAS
ASA
SAS
Answer:
ASA
Step-by-step explanation:
if you understood the other, similar questions now, this one is really, really easy.
we got the confirmation for 2 angles and the side between these angles.
so, angle side angle or ASA
please i need your help
Answer:
x is 11
Step-by-step explanation:
[tex]{ \tt{10 + 5 + x = 26}} \\ x = 11[/tex]
Which equation is equivalent to -2(2 − 2x) = 4 − 8(1 − x)?
Answer:
x = 0
Step-by-step explanation:
-2(2 − 2x) = 4 − 8(1 − x)
Apply the distributive property:
−2(2 − 2x) = 4 − 8(1 − x)
(−2)(2) + (−2)(−2x) = 4 + (−8)(1) + (−8)(−x)
−4 + 4x = 4 + (−8) + 8x
Combine like terms:
4x − 4 = (8x) + (4+−8)
4x − 4 = 8x + (−4)
4x − 4 = 8x − 4
Subtract 8x from both sides:
4x − 4 − 8x = 8x − 4 − 8x
−4x − 4 = −4
Add 4 to both sides:
−4x − 4 + 4= −4 + 4
−4x = 0
Divide both sides by -4:
-4x/-4 = 0/-4
x = 0
Answer: 0
Step-by-step explanation:
8x square + 1 + 3square - 2
Answer:
8x^2-1+3^2
Step-by-step explanation:
what is 8^100 / 8^50 is 8^50
Answer:
5000
Step-by-step explanation:
find the solution for -2.5x +5 < - 2.5 on a number line
Answer:
X>3
Step-by-step explanation:
-2.5x +5 < -2.5
-2.5x < -2.5-5
-2.5x< -7.5
X> -7.5/-2.5
X>3
SORRY HELP xx jdjskcksickkwskkdwkkcwo
Answer:
0
Step-by-step explanation:
zero is not a natural number,it is a whole number
Answer:
0
Step-by-step explanation:
Natural numbers are all positive whole numbers starting at 1 to infinity. So, 0 isn't a natural number.
what is (-5x-3y) - (-x-3z)
Answer:
-4x-3y+3z
Step-by-step explanation:
(-5x-3y)-(-x-3z)
-5x+x-3y+3z
-4x-3y+3z
A plane took off at a point that is 42 meters from the control tower. The flight path takes the plane over the control tower that is 98 meters high. After traveling 83 meters, which statement is most accurate?
Answer:
D). The plane needs to be about 27 meters higher to clear the tower.
Step-by-step explanation:
Given that,
Height of the tower = 98 m
Distance traveled by plane = 83 m
The distance of the take-off point from the tower = 42m
This shows that it forms a right-angled triangle with
Base(B) = 42m
Hypotenuse(H) = 83m
To find,
The height of this triangle(x) = ?
Using Pythagoras theorem, we know that,
B^2 + x^2 = H^2
⇒ x^2 = H^2 - B^2
⇒ x^2 = (83)^2 - (42)^2
⇒ x^2 = 6889 - 1764
⇒ x = [tex]\sqrt{6889 - 1764}[/tex]
∵ x = 71.58 m
Thus, the height difference from the position of the plane to the tower = 98 - 71.58
= 26.42 m
Thus, option D i.e. 'the plane's height must be 27m above the tower' is the correct answer.
A submarine cruises underwater at 20 km/h and on
the surface at 30 km/h. The submarine travels a.
distance of 650 km in 25 h. A linear system was
created and graphed
Answer:
System of equations:
20x + 30y = 650
x + y = 25
Time underwater = 10 hours
Time at the surface = 15 hours
Step-by-step explanation:
Let x = time underwater at 20 km/h.
Let y = time on the surface at 30 km/h.
speed = distance/time
distance = speed * time
distance underwater: 20x
distance on the surface: 30y
total distance: 650
20x + 30y = 650
total time: x + y
total time: 25
x + y = 25
20x + 30y = 650
x + y = 25
20x + 30y = 650
-20x - 20y = -500
--------------------------------
10y = 150
y = 15
x + y = 25
x + 15 = 25
x = 10
Evaluate [10/y + 13] -3, when y=5
Answer:
(10/y+13)-3
(10/5+13)-3
(2+13)-3
15-3
12
I hope this will help you
please help with number 9!!!
Answer:
2 + sqrt(3)
Step-by-step explanation:
Roots that contain square roots come in pairs
If there is a root that is a- sqrt(b), there is a root that is a+ sqrt(b)
2 -sqrt(3) means there is a root 2 + sqrt(3)
You are making pudding for five friends. The recipe calls for 1/4 cup of sugar per serving. How much sugar do you need?
Answer:
1 1/4 cups I think..
Step-by-step explanation:
1/4 times 4 is 1, plus another 1/4 for the 5th friend is 1 1/4 cups.
Answer:
[tex]\frac{5}{4}[/tex] or [tex]1\frac{1}{4}[/tex] cups
Step-by-step explanation:
This question asks how much total sugar will be needed for 5 servings of 1/4 cup. In other words, this is asking for 1/4 cup to be added together 5 times. However, repeated addition is just multiplication, so this can become a multiplication problem. To do this make both terms a fraction by putting 5 over 1. This looks like: [tex]\frac{5}{1} *\frac{1}{4}[/tex]. Then, simply multiply the numerators together and the denominators together. This equals [tex]\frac{5}{4}[/tex]. If needed this can be put into the mixed fraction of [tex]1\frac{1}{4}[/tex] cups.
help pls I need answer to question (e)
Answer:
I assume you'd already figured out the other questions so you just don't understand the question E
Step-by-step explanation:
The product of the first 2 numbers its stating is -28 and 48, and it's asking if the product (multiply -28 by 48 to get the product) is equal to the HCF and LCM you got in the previous answer.
Stella has five times as many books as Tina. If Stella gave 16 books to Tina, they would each have the same number of books. How many books does Stella have?
Answer:
40 books
Step-by-step explanation:
s = Stella's books
t = Tina's books
Given:
s = 5t
s - 16 = t + 16
Plug first equation into second:
5t - 16 = t + 16
4t = 32
t = 8 books
s = 5t = 40 books
((Check: 40 - 16 = 24 = 8 + 16 ✔ ))
Which inequality is represented by the graph?
Y>-2/3x+1
Y<-2/3x+1
Y<-3/2x+1
Y>-3/2x+1
Answer:
Last option, y > -3/2x+1
That's the answer you're looking for
what is greatest to least? 39/12 109/36 75/24 10/3 19/6 (btw those are written in faction form)
Answer:
10/3, 39/12, 19/6, 75/24, 109/36
Step-by-step explanation:
Lets simplify:
10/3 = 3 1/3
39/12 = 3 3/12 = 3 1/4
19/6 = 3 1/6
75/24 = 3 3/24 = 3 1/8
109/36 = 3 1/36
Expand the following
(x+2x)(2s-2t)
(m-n)²
(k+9)²
(4a-3b)(c+6d)
please check the attachment for solutions
Brainlest If Correct and i rlly need the help.
Answer:
scale factor= /2
Step-by-step explanation:
The scale factor is 1/2, which is equivalent to 0.5
Can someone help me with this question immediately with an explanation??!! Plsss
Answer:
the number of senors is 150
Step-by-step explanation:
call the number of seniors is a
we have number of juniors is 4/3a
number of sophomores is 3/2*4/3*a=2a
number of freshmen is also =2a
sum of all studens in that school = a+4/3a+4a=950
a=150
Please help quick! ASAP please!
Answer:
11.55
Step-by-step explanation:
How many hundred thousands 90 ten thousands
pls hurry
Answer:
0.9
Step-by-step explanation:
100,000 in 90,000
From the diagram below, you can say that the two triangles are
Select one:
Congruent by SAS
Not Congruent
Congruent by HL
Congruent ASA
Answer:
C
Step-by-step explanation:
As the legs and hypotenuse are same, these triangles are congruent by HL congruency
Select the best answer to describe the parabola
Answer:
B
Step-by-step explanation:
It opens downwards, so the parabola is negative. This also means the vertex of the parabola is the highest point, therefore it is a maximum.