Kim was asked to explain to her friends how to solve 3x? - 2x = 1. She will be using the quadratic formula. What would be the first step?
The triangle below is isosceles.
Answer:
BC = 20 units
Step-by-step explanation:
if ∡C = ∡B then 2x + 16 = 7x + 6
16 = 5x + 6
10 = 5x
x = 2
BC = 2(2) + 16, which is 20
Help with number 1 please.
Answer:
Step-by-step explanation:
Last month the Zimmer family had 20 chickens. This month they have 25. What is the percent increase from last month to this month?
Answer:25 %
Step-by-step explanation:
Given
Last month count of chicken was [tex]20[/tex]
The current count of chicken is [tex]25[/tex]
The percentage increase is given by
[tex]\Rightarrow \dfrac{\text{Present value-Actual value}}{\text{Actual value}}\times 100[/tex]
Putting values
[tex]\Rightarrow \%=\dfrac{25-20}{20}\times 100=\dfrac{5}{20}\times 100\\\\\Rightarrow \%=25\%[/tex]
ANSWER ASAP I WILL MAKE YOU BRAINLIEST 10 POINTS AND ALSO HEART AND 5 STARS RATE grade 11 math
please answer section a
Only answer section a I did section b myself so PLEASE answer section a with some explanation
(I'm sorry if I sound mean; If you don't give me an answer you will not get brainliest or heart or stars for example if you type the answer as '......'
Answer:
Values
1) a = 1, b = 3, c = -1
2) a = 2, b = -3, c = 6
3) a = 8 b = 1, c = -7
Step-by-step explanation:
To get the values, you need to write each equation in the format of ax²+bx+c=0, therefore you can find out each of the values easily. However for the third box, you aren't give the 'b' value in the equation, so you would have to assume that this is '1'.
To get the 'Answer', just simply input each of these values into the quadratic formula using a calculator.
The Quadratic formula:
[tex]x=\frac{ -b +- \sqrt{^{b} -4ac} \\}{2a}[/tex]
Use this and input all of the values required in each place, then simplify down if you don't have a calculator to find the answer.
Instructions for a craft project say that the length of a piece of red ribbon should be 7 inches less than the length of a piece of blue ribbon.
a. How long is the red ribbon if the blue ribbon is:
10 inches?
27 inches?
X inches?
Answer:
If blue ribbon is 10 inches, red ribbon is 3 inches
If blue ribbon is 27 inches, red ribbon is 20 inches
If blue ribbon is x inches, red ribbon is x - 7 inches
Step-by-step explanation:
Given that,
The length of a piece of red ribbon should be 7 inches less than the length of a piece of blue ribbon.Need to find,
How long red ribbon is if blue ribbon is 10 inchesHow long red ribbon is if blue ribbon is 27 inchesHow long red ribbon is if blue ribbon is x inches--------------------------------------------------------------------------------------------------------------
How long is the red ribbon if the blue ribbon is 10 inches?
We know that the formula for find the length of the red ribbon is:
length of blue ribbon - 7 inches = length of red ribbon
Since we know the length of the blue ribbon (10 inches), we can apply that to the formula:
10 inches - 7 inches = length of red ribbon
So, what is 10 - 7? That gives us 3. So, the length of the red ribbon is 3 inches if the length of the blue ribbon is 10.
--------------------------------------------------------------------------------------------------------------
How long is the red ribbon if the blue ribbon is 27 inches?
We do the same as we did above to get 20 inches as the final answer because 27 inches - 7 inches gives us 20 inches as a difference.
--------------------------------------------------------------------------------------------------------------
How long is the red ribbon if the blue ribbon is x inches?
Since we do not know the value of x, we keep the length of the red ribbon to x - 7.
The length of the red ribbon is 3 inches if the blue ribbon is 10 inches.
The length of the red ribbon is 20 inches if the blue ribbon is 27 inches.
The length of the red ribbon is (X - 7) inches if the blue ribbon is X inches.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Length of blue ribbon = x
Length of red ribbon.
= x - 7
Now,
If x = 10
Length of red ribbon.
= 10 - 7
= 3 inches
If x = 27
Length of red ribbon.
= 27 - 7
= 20 inches
If x = X
Length of red ribbon.
= (X - 7) inches
Thus,
The length of the red ribbon is given above.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
Select three angle measures that can represent the three angles of a triangle. Write the measures in Box A. 100 80 30 90 70 10
Answer:
some examples:
80, 30, 70
80, 10, 90
100, 70, 10
Step-by-step explanation:
angle measures must add to 180 degrees
Translate the sentence into an equation.
Four times the sum of a number and 3 is equal to 6.
Answer:
0.50x4x3
Step-by-step explanation:
what is 90/3 in mathmatics
Answer:
30
Step-by-step explanation:
a pilot is flying an airplane at an elevation of 17,500 feet. she is increasing her elevation at a rate of 2,500 feet per minute. which number line shows the solution set for the number of minutes the pilot could increase her elevation and be above 25,000 feet?
Answer:
y= *greater than or equal to sign* 2500x+17500
The answer is: A
Step-by-step explanation:
Hope this help :)
Answer:
It's C
Step-by-step explanation:
I put in A for my exam but it said it was incorrect and it said the answer was C :')
y=2x
5x-y=9
I have to solving systems by substitution
Answer:
okay so Y can be 6
and x can be 3
Step-by-step explanation:
so first 2*x=y
the most most likely answer will be y is 6 and x is 3 because
5*3=15
y=6
15-6=9
so x is 3 and y is 6
Which table shows a probability distribution?
X 0 1 2 3
P −0.3 0.6 0.5 0.2
X 0 1 2 3
P 0.4 0.3 0.4 0.1
X 0 1 2 3
P 0.1 0.5 0.3 0.1
X 0 1 2 3
P 0.3 0.1 0.2 0.2
Considering that it has only positive probabilities, and the sum of the probabilities is of 1, the table that shows a probability distribution is given by:
X 0 1 2 3
P 0.1 0.5 0.3 0.1
When does a table represent a probability distribution?A table is formed by a set of points (x, P(x)), and represents a probability distribution if:
The sum of the probabilities is of 1.All probabilities are 0 or positive.In this problem:
In the first table, there is a negative probability, which is P(X = 0) = -0.3.In the second and the fourth tables, the sums are of 1.2 and 0.8, respectively.Hence, the table that represents a probability distribution is given as follows:
X 0 1 2 3
P 0.1 0.5 0.3 0.1
More can be learned about a probability distribution at https://brainly.com/question/24855677
A ball is thrown straight up from a height of 3 ft with a speed of 32 ft/s. Its height above the ground after x seconds is given by the quadratic function y = -16x2 + 32x + 3.
Answer:
19ft
Step-by-step explanation:
Given the height of a ball above the ground after x seconds given by the quadratic function y = -16x2 + 32x + 3, we can find the maximum height reached by the ball since we are not told what to look for.
The velocity of the ball is zero at maximum height and it is expressed as:
V(x) = dy/dx
V(x) = -32x+32
Since v(x) = 0
0 = -32x+32
32x = 32
x = 32/32
x = 1s
Get the height y
Recall that y = -16x² + 32x + 3.
Substitute x = 1
y = -16(1)²+32(1)+3
y = -16+32+3
y = -16+35
y = 19ft
Hence the maximum height reached by the ball is 19ft
is 5x - 2 a non linear function
Answer:
yes
Step-by-step explanation:
-5 – [-17 + (15 -6)] + (-15 - 8) – {-1 + (8 - 9) + (7 - 10)}
Answer:
-15
-5 – [-17 + (15 -6)] + (-15 - 8) – {-1 + (8 - 9) + (7 - 10)}
-5-(-17+9)+(-23)-(-1+(-1)+(-3))
-5-(-8)-23-(-1-1-3)
-5+8-23-(-5)
-5+8-23+5
=-15
Answer:
Step-by-step explanation:15 9 17 A = 7 0 8 8 10 9 i A-1 =
What are the numbers less than -7 and greater than -15?
Answer:
-8,-9,-10,-11,-12,-13
Step-by-step explanation:
24/5x=-11/4
this confusing
Answer:
1 Simplify \frac{24}{5}x
5
24
x to \frac{24x}{5}
5
24x
.
\frac{24x}{5}=-\frac{11}{4}
5
24x
=−
4
11
2 Multiply both sides by 55.
24x=-\frac{11}{4}\times 5
24x=−
4
11
×5
3 Use this rule: \frac{a}{b} \times c=\frac{ac}{b}
b
a
×c=
b
ac
.
24x=-\frac{11\times 5}{4}
24x=−
4
11×5
4 Simplify 11\times 511×5 to 5555.
24x=-\frac{55}{4}
24x=−
4
55
5 Divide both sides by 2424.
x=-\frac{\frac{55}{4}}{24}
x=−
24
4
55
6 Simplify \frac{\frac{55}{4}}{24}
24
4
55
to \frac{55}{4\times 24}
4×24
55
.
x=-\frac{55}{4\times 24}
x=−
4×24
55
7 Simplify 4\times 244×24 to 9696.
x=-\frac{55}{96}
x=−
96
55
Step-by-step explanation:
The table below gives the distribution of milk chocolate M&M's
Color: Brown, red, yellow Green, Orange, Blue
Probability 0.13 0.13 0.14 0.16 0.20 0.24
If a candy is drawn at random, what is the probability that it is not orange or red?
PLEASE HELP!
Answer:
0.67
Step-by-step explanation:
correct
HELP ASAP DUE IN 4 MINS. Pablo will spend at most $34 on gifts. So far, he has spent $19. What are the possible additional amounts he will spend?
Use c for the additional amount (in dollars) Pablo will spend.
Write your answer as an inequality solved for c.
Answer:
c> 34-19
Step-by-step explanation:
C> 15
A kite is flying 76 ft off the ground, and its string is pulled taut. The angle of elevation of the kite is 589. Find the length of the string. Round your answer to the
nearest tenth
Answer:
Answer: The length of string from kite to the ground is 111.5 feetStep-by-step explanation:Given ... of the ground, and its string is pulled tout. The angle of elevation of the kite is 43. Find the length of the string. Round your answer to the ... The height from the ground at which kite is flying = BC = h = 76 feet.
Step-by-step explanation:
please help me with this :)
(screenshot below)
Answer:
8b+17=65 is the first equation
b=6
the value of b has increased by 4
Step-by-step explanation:
hope it helps
can you help me with this what is 4z-z
Answer: The answer would be 3z! Good luck!
Step-by-step explanation: Subract z from 4z, basically turn the equation to 4z - 1z, then put the variable (z) to the side and subtract 1 from 4. Once you're
done with that bring your variables back and you have 3z!
what is the area to this
Answer:
600
Step-by-step explanation:
Area of Square:
= l*w
= 20x20 = 400
Area of Triangle:
= b*h/2
= 20*20/2
= 200
400 + 200 = 600
Good luck! <3
Answer:
The total area of the shape is 600 square centimetres.
Step-by-step explanation:
You can solve this by finding the area of the square and the triangle separately.
The area of any rectangle, including squares, is width times height. The bottom square then has an area of 20cm × 20cm, which equals 400cm²
The area of a triangle is have of its base width times its height. It too has a width of 20cm and a height of 20cm, so its area is 20cm × 20cm ÷ 2, which equals 200cm²
Add them together for the full area of the shape:
400cm² + 200cm² = 600cm²
Help please ASAP hsksbeishehsodb
Answer:
D
Step-by-step explanation:
Answer:
Experimental prob
Step-by-step explanation:
Experimental means you actually did it thats why its called experimental.
Theoretical means a guess in the future
Find x
21/2
56/3
54/7
12
A recipe that will serve 15 people requires 3/4 cup of chopped green peppers. If this recipe is changed to serve 8 people, what amount of chopped green peppers will be needed?
2/5 cup
32/45 cup
45/32 cups
5/2 cups
Answer:
2/5 cups
Step-by-step explanation:
(3/4)*8=6
6/15= 2/5
In triangle JKL, the measure of angle L=90°, the measure of angle J=25°, and KL = 26 feet. Find the length of LJ to the nearest tenth of a foot.
Answer: 55.8 feet
Step-by-step explanation:
Factor (2x^2+4x) + (1x+2)
Answer:
(2x + 1) (x + 2)
Step-by-step explanation:
2x² + 4x + 1x + 2
They are already arranged, so you just have to find the GCF. 2x² + 4x have the GCF of 2 and 1x + 2 have the GCF of 1.
2x (x + 2) + 1(x + 2)
Now you divide the whole thing by x + 2.
2x (x + 2) + 1(x + 2)/ x + 2
One of them cancels out leaving (2x + 1) and (x+2)
Glven f(x) = x^2+ 2x - 1 and g(x) = 3x- 5; Determine f + g and f -9
F+g= F-g=
Answer:
Step-by-step explanation:
you can find videos on yt for that
Answer:
sorry, I'm not sure. you need a little more description though
Help ASAP!! please
Carl went out to eat with his family for his birthday. The bill was $87.42, but Carl had a 10% off coupon. If Carl gave a 20% tip, what was the final price he paid for the meal?
Answer:
26.226
Step-by-step explanation: