At which root does the graph of f(x) = (x + 4)(x + 735 cross the x-axis?
9514 1404 393
Answer:
both of them: x = -4, x = -735
Step-by-step explanation:
The meaning of "real root" is that the graph intersects the x-axis at that value of x. If the degree of the root is odd, the graph crosses there. (If the degree of the root is even, the graph only touches the x-axis.)
f(x) = (x +4)(x +735)
has real roots at x = -4 and x = -735, so crosses the x-axis in those places.
12 men can plant the paddy in a rupandehi of field in 10 hours how many men are required to plan the same in 6 hours only
Answer:
20 mens
Step-by-step explanation:
12 men can plant paddy in 10 hours
1 man can plant the paddy in (10 × 12) hours
10 × 12 / 6 = 20
A bag of marbles has 10 red marbles, 4 green marbles, and 6 blue marbles. A marble is randomly drawn from the bag before another marble is drawn, without replacement. What is the probability that a green marble and then a red marble are selected? Enter your answer as a fraction in simplest form in the box.
Answer:
2/19
Step-by-step explanation:
i just took the test and no one helped me i got is wrong but when you go back to review it it tells you the answer hope im not too late
Help please this is also for the test
Jonathan is building a circular pond attached to a corner of his house. He wants to put bricks around the entire pond, including the sides that are against the house. The radius of the pond is 6ft.
Approximately how many feet of bricks does Jonathan need for the border of his pond? (Use 3.14 as an estimate for...I can’t put the sign....)
A. 28.26 ft
B. 30.84 ft
C. 37.68 ft
D. 40.26 ft
E. 46.68 ft
Answer:
E
Step-by-step explanation:
A candy store sells chocolate for $7.01 per pound. The piece you want to but weights .18 pound. How much will it cost?
it will cost abut $1.26! the exact answer being 1.2618, you can find this by multiplying 7.01 and 0.18, you round it up to something that can be an actual price! hope this helps! <3
Help plzz will mark brainleast
Answer: I would say that it is 7
Step-by-step explanation:
30 : 24
b : 4 (divide both sides by 6)
5 : 4
Equivalent to 5 would be 7
Sorry if its wrong
3. What is the breadth of a rectangle
whose length and area are 8cm
and 40cm- respectively?
Answer:
area of rectangle = l×b
or,40=8×b
or,40=8b
or,40/8=b
or,b=5cm is ans
help i dont reamember how to do this plz
Find the lateral area and the surface area of the composite solid. Keep answer in exact form.
10 cm
12 cm
1
1
1
1
32 cm
10 cm
Lateral Area
Surface Area
Answer:
a) Lateral area of the solid = 2011.43 [tex]cm^{2}[/tex]
b) Surface area of the solid = 2544 [tex]cm^{2}[/tex]
Step-by-step explanation:
a) Lateral area of the figure = 2[tex]\pi[/tex]rh
where; r is the radius of the cylinder, and h is its height.
Lateral area of the figure = 2 x [tex]\frac{22}{7}[/tex] x 10 x 32
= 2011.43 [tex]cm^{2}[/tex]
b) The surface area = 2[tex]\pi[/tex]r(r + h) - 2([tex]\frac{1}{2}[/tex] x b x h)
= 2[tex]\pi[/tex]r(r + h) - (b x h)
The height of the isosceles triangle can be determined by applying the Pythagoras theorem to have,
[tex]10^{2}[/tex] = [tex]6^{2}[/tex] + [tex]h^{2}[/tex]
100 = 36 + [tex]h^{2}[/tex]
[tex]h^{2}[/tex] = 100 - 36
= 64
h = [tex]\sqrt{64}[/tex]
= 8
h = 8 cm
The surface area of the solid = 2 x [tex]\frac{22}{7}[/tex] x 10 (10 + 32) - 12 x 8
= 2640 - 96
= 2544
The surface area of the solid is 2544 [tex]cm^{2}[/tex].
The slope of the line below is -0.75. Write the equation of the line in point-
slope form, using the coordinates of the labeled point. Do not use parenthesis
on the y side.
(2, -1)
Miguel and his four friends equally split a bag of hot chips.which choice represents how much each gets? A.1/4 b.1/5 c.4/5 d.1bag
Answer:
B. 1/5
Step-by-step explanation:
Miguel AND his 4 friends are sharing a bag of hot chips
theres a total of 5
so each person gets 1/5 of the bag
4.4s + 6.2 = 8.8s - 1.8
please help
Answer:
s = 1.81
Step-by-step explanation:
4.4(1.81)+6.2=8.8(1.81)-1.8
plug in and multiply if you'd like to clarify :)
Answer:
=Steps
4.4s+6.2=8.8s−1.8
Multiply both sides by 10
4.4s· 10+6.2· 10=8.8s· 10−1.8· 10
Refine
44s+62=88s−18
Subtract 62 from both sides
44s+62−62=88s−18−62
Simplify
44s=88s−80
Subtract 88s from both sides
44s−88s=88s−80−88s
Simplify
−44s=−80
Divide both sides by −44
−44s
−44 =
−80
−44
Show Steps
Simplify
s=
20/11
Step-by-step explanation:
what is 5 times 1/10 in simplest form.
Answer:
1/2
Step-by-step explanation:
5 x 1/10 = 0.5
0.5 = 1/2
Answer:
1 / 2
Step-by-step explanation:
2
Find the area of the shape.
Either enter an exact answer in terms of or use 3.14 for it and enter your answer as a decimal.
units?
Answer:
3pi or 9.42
Step-by-step explanation:
3/4x3.14x2x2=3pi or 9.42
I need help so I can helpl my grandson to pass this quz please and thank you
its in the download pdf.
Answer:
Sorry about the last time this time I could find the images!
First problem: 120
Second problem: I believe its 140 but I dont know for sure so answer that at your own risk please
Third problem: same for this one I think it's 40
Fourth problem: 2160
Options are:
X=2, y=3
X=3, y=2
X= -2, y=3
X=4, y=8
Step-by-step explanation:
2x - 5 = y - 5
2x = y
x = y/2
y - 3 = x + 1
Substitute the value of x here,
y - 3 = [tex]\rm{\dfrac{y}{2} + 1}[/tex]
y - 3 = [tex]\rm{\dfrac{y + 2}{2}}[/tex]
2y - 6 = y + 2
y = 8
Now, x = 8/2
x = 4
So, go for D part, it is the correct answer.
Good Night/Day !
Answer:
x = 4, y = 8
Step-by-step explanation:
For the triangles to be congruent by the HL theorem
Then the hypotenuse and legs must be congruent , that is
x + 1 = y - 3 → (1)
2x - 5 = y - 5 → (2)
Subtract (1) from (2) term by term to eliminate y
2x - x + (- 5) - 1 = y - y + (- 5) - (- 3) , that is
x - 6 = - 2 ( add 6 to both sides )
x = 4
Substitute x = 4 into either of the 2 equations and solve for y
Substituting into (1)
4 + 1 = y - 3
5 = y - 3 ( add 3 to both sides )
8 = y
Zach scored 67 on his calculus class final and was devastated by his failing grade. His class distribution had a mean of 54 and a standard deviation of 7. Adam was quite proud of his score of 88 for his Spanish language class. His class distribution had a mean of 97 with a standard deviation of 6. Who did better relative to their class
Answer:
Due to the higher z-score, Zach did better relative to his class.
Step-by-step explanation:
Z-score:
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
In this question:
Whoever had the higher z-score did better:
Zach:
Scored 67, mean of 54 and standard deviation of 7, so [tex]X = 67, \mu = 54, \sigma = 7[/tex].
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{67 - 54}{7}[/tex]
[tex]Z = 1.86[/tex]
Adam:
Scored 88, mean 97, standard deviation of 6, so [tex]X = 88, \mu = 97, \sigma = 6[/tex]
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{88 - 97}{6}[/tex]
[tex]Z = -1.5[/tex]
Who did better relative to their class?
Due to the higher z-score, Zach did better relative to his class.
What is the area of a circle with a radius of 4 ft?
(Use 3.14 for Pi.)
Step-by-step explanation:
A = Pi x r^2
r=4_____________
Answer:
50.26548
50.27 Rounded to the hundredths place .
which value form the set {0, 1,17, 72 make the equation n+8=9 true
Answer:
n + 8 = 9
therefore 9-8 = 1
What is the volume of a sphere with a radius of 10 inches? Round to the nearest hundredth.
What is the volume of a sphere with a radius of 7 feet? Round to the nearest hundredth.
6
What is the volume of the sphere with a diameter of 18 centimeters? Round to the nearest
hundredth
Answer:
5. 4186.67 in³
6. 1436.03 ft³
7. 3052.08 cm³
Step-by-step explanation:
5. Determination of the volume of the sphere.
Radius (r) = 10 in
Pi (π) = 3.14
Volume (V) =?
V = 4/3πr³
V = 4/3 × 3.14 × 10³
V = 4/3 × 3.14 × 1000
V = 4186.67 in³
6. Determination of the volume of the sphere.
Radius (r) = 7 ft
Pi (π) = 3.14
Volume (V) =?
V = 4/3πr³
V = 4/3 × 3.14 × 7³
V = 4/3 × 3.14 × 343
V = 1436.03 ft³
7. Determination of the volume of the sphere.
We'll begin by calculating the radius. This can be obtained as follow:
Diameter (d) = 18 cm
Radius (r) =?
r = d/2
r = 18/2
r = 9 cm
Finally, we shall determine the volume of the sphere. This can be obtained as follow:
Radius (r) = 9 cm
Pi (π) = 3.14
Volume (V) =?
V = 4/3πr³
V = 4/3 × 3.14 × 9³
V = 4/3 × 3.14 × 729
V = 3052.08 cm³
PLS HELP :) Factorise fully the following:
a) x² + x
b) 3x - 9x
c) 7x - 35x
d) 4x^3+ 24x
^2
Answer:
a) x(x+1)
b) 3x(1-3)
c) 7x(1-5)
d) 4x²(x+6)
Step-by-step explanation:
When factorising, the most important thing to do is find what the terms have in common. Divide each term by what they have in common, then multiply it by the entire expression so the value doesn't change. Also, you can always check your answer by multiplying it out to see if you get what you started with.
a)
x² + x, both terms have 'x' in common:
x( (x²/x) + (x/x) ) = x(x+1)
b)
3x - 9x, both terms have '3x' in common:
3x( (3x/3x) - (9x/3x) ) = 3x(1-3)
c)
7x - 35x, both terms have '7x' in common:
7x( (7x/7x) - (35x/7x) ) = 7x(1-5)
d)
4x³+ 24x², both terms have 4x² in common:
4x²( (4x³/4x²) + (24x²/4x²) ) = 4x²(x+6)
What is the value of x.
Will mark Brainlyist if it’s the correct answer.
Please help!
Answer:
THATS OUR TOPIC ALL YOU NEED IS
hope it helps
HELP JIMTHOMPSON5910
Explain what the diameter of a circle is. If you had the diameter of a circle, how could you solve for the circumference?
The diameter can be thought of as the width of the circle, more or less. More accurately, it's the distance from one point on a circle, through the center, to a point on the opposite side.
If we had a circle at point A, and some point on the edge of the circle point B, then line AB will form a third point C. Point C is on line AB and on the circle. Segment BC is a diameter.
We can measure the diameter with a straight line ruler, but we cannot do the same with the perimeter of the circle. The circumference is just a fancy name for "perimeter". Specifically, it only applies to circles. The way I remember it is that "circle" has "circ" in it, and so does "circumference". Furthermore, we can erase some letters of "circumference" to end up with "fence", which would go along an outer perimeter in a lot of cases. Overall, "circumference" makes me think of "circle fence".
How can we find the perimeter of a circle? Well we could use a cloth ruler to wrap around the edge of the circle. We'd have to make sure that none of the bendable ruler is out of place. So things could get tricky.
To find the circumference with a formula, we'll use this one here
C = pi*d
where pi = 3.14 approximately and d is the diameter
----------------------
For example, let's say the diameter is d = 10 feet. That would lead to a circle perimeter of....
C = pi*d
C = 3.14*10
C = 31.4
The circumference is approximate because pi = 3.14 is approximate. The units for the circumference in this case are in feet, so the distance around this particular circle is about 31.4 feet.
Write the equation of a parabola in conic form with a focus at (-2,-7) and a directrix at y=-1
Need help with this
Answer:
(-2-h)^2+(-7-k)^2=r^2
Step-by-step explanation:
(x-h)^2+(y-k)^2=r^2 this is the normal equation now u just need to substitue those in it
Solve x2 – 6x + 9 = 0 by completing the square.
Answer:
11/6
Step-by-step explanation:
See the steps below:)
A highway department is studying the relationship between traffic flow and speed. The following model has been hypothesized.
y = 0 + 1x + 2x2 +
where
y = traffic flow in vehicles per hour
x = vehicle speed in miles per hour
The following data were collected during rush hour for six highways leading out of the city.
Traffic Flow () Vehicle Speed ()
1256 35
1330 45
1226 30
1335 50
1349 50
1124 25
a. Use the data to compute the coefficients of this estimated regression equation (to decimals).
b. Using , test for a significant relationship. (to decimals) -value (to decimals) The relationship - Select your answer - significant.
c. Estimate the traffic flow in vehicles per hour at a speed of miles per hour (to decimals). vehicles per hour.
Answer:
I don't know this stuff yet but I'll keep looking
if you invest $1600 at 5.25% for 18 months, how much simple interest is earned?
Interest calculator for a $600 investment. How much will my investment of 600 dollars be worth in the future? Just a small amount saved every day, week, or month can add up to a large amount over time. In this calculator, the interest is compounded annually.
Plz help me well mark brainliest if correct.............
Answer:
Yup, 11 is the answer. because 4 -15 is 11.
HELP PLEASE!!!! ILL MARK U BRAINLESS FIRST PERSON TO ANSWER
Answer:
9/16 <fraction 0.5625 <decimal 56.25%
Step-by-step explanation:
the hypotenuse of a 30-60-90 degree right triangle has a measure of 10. what is the measure of the shortest side
Answer:
5
Step-by-step explanation:
A 30-60-90 triangle's sides equal as follows:
Hypotanuse= x (a number)
Long side= x/2( also can be calculated as x* 1/2) * [tex]\sqrt{3}[/tex]
Short side = x/2 or x * 1/2