Answer:
negative
Step-by-step explanation:
A negative times a negative is a positive
A positive times a positive is a positive
A negative times a positive is a negative
Answer:
the sign of the product is negative (-) the number is -9471
Step-by-step explanation:
when multiplying (product) 2 numbers:
if one number is negative and other is positive, answer is always a negative
if both numbers are negative, then answer is always positive
and finally if both numbers are positive, then the answer is positive.
The team was practicing shot put throws for the track meet. Murph threw 413 yards on his first attempt and 323 yards on his second attempt.
How much farther did Murph throw on his first attempt than on his second attempt?
Enter the correct answer in the box.
Answer:
90 yards
Step-by-step explanation:
413 - 323 = 90
quinn and randy both opened savings accounts with $50. Quinn deposited $25 each week for 4 weeks . randy deposited more than $25 each week for 4 weeks
which graph could represent randy’s total savings during 4 weeks ?
A
B
C
D
Which expression is equivalent to -10x + 5?
Find the total area for the composite figure below
Area of triangle + rectangle
= 1/2× 9×4 + 9×6
= 18+ 54
= 72
Answer:
72 units²
Step-by-step explanation:
A(Triangle) = 1/2(9)(4) = 18 units²
A(Rectangle) = 9(6) = 54 units²
A(Figure) = 18 + 54 = 72 units²
A quantity with an initial value of 670 decays continuously at a rate of 25% per hour.
What is the value of the quantity after 7 hours, to the nearest hundredth?
Answer:
89.43
Step-by-step explanation:
a = 670 * (1 * .25)^7
a = 670 * (.75)^7
a = 89.43
Construct the 95% confidence interval estimate of the mean VAS score for patients given the magnet treatment. Find the Standard error and critical value. construct the 95% confidence interval estimate of the mean VAS score for patients given the sham treatment. You may do the shortcut.
Answer:
(3.442 ; 6.558)
Step-by-step explanation:
Given :
Mean score after patient is given the magnet treatment :
Mean score, xbar = 5
Standard deviation, s = 2.4
Sample size, n = 20
The confidence interval :
Mean ± margin of error
Margin of Error = Tcritical * standard error
The critical value at 95%, df = 20 - 1 = 19
Tcritical = 2.093 (T-student distribution)
The standard error = s/√n = 2.4 / √20 = 0.5367
The margin of error = 2.903 * 0.5367 = 1.558
The confidence interval :
Xbar ± Margin of error
5 ± 1.558
(3.442 ; 6.558)
Contruction workers are building a brick wall. The wall needs to be 3 feet tall, and the builders have enough bricks for the wall to have a volume of 279 cubic feet.What will the area of the base of the wall be?
Answer:
[tex]Base\ Area = 93ft^2[/tex]
Step-by-step explanation:
Given
[tex]Volume = 279ft^3[/tex]
[tex]Height =3ft[/tex]
Required
The base area
Volume is calculated as:
[tex]Volume = Base\ Area * Height[/tex]
This gives:
[tex]279= Base\ Area * 3[/tex]
Make Base Area the subject
[tex]Base\ Area = \frac{279}{3}[/tex]
[tex]Base\ Area = 93ft^2[/tex]
Please help me with this question
9514 1404 393
Answer:
(√5)/2
Step-by-step explanation:
Of the several ways I can think of to do this, using a graphing calculator is about the easiest. It shows the minimum to be ...
f(1) = √1.25 = (√5)/2
__
Using the distance formula, you have ...
f(x) = √((x -(-2))² +((x² +2)-5/2)²)
f(x) = √(x² +4x +4 +x⁴ -x² +1/4) = √(x⁴ +4x +17/4)
The minimum is found where the derivative is zero.
f'(x) = (2x³ +2)/√(x⁴ +4x +17/4) = 0
x³ = -1 . . . . . f'(x) is zero when the numerator is zero
x = -1 . . . . . cube root
Then the minimum value of f(x) is ...
f(-1) = √(x⁴ +4x +17/4) = √((-1)⁴ +4(-1) +17/4) = √(1 -4 +17/4) = √(5/4)
f(-1) = (√5)/2 . . . . minimum value of f(x)
__
The graph shows f²(x) in red and its minimum of 1.25 = 5/4. The curve (x, x²+2) and the point (-2, 5/2) are also shown, for reference. (The slope of the curve at x=-1 is -2, and the normal to the curve at that point has slope 1/2. The normal goes through the point (-2, 5/2), consistent with f(x) being a minimum at x=-1.)
qual o valor das expressões
(-5) + (+6) + (-2)?
(-22) - (+8) + (+10)?
(-12) . (+4) : (-2)?
Answer:
(-5) +(+6) +(-2) = (-1)
(-22) -(+8) +(10) =(-4)
Step-by-step explanation:
(-5)+ (+6) is 1 + (-2) is (-1)
(-22)-(+8) is (-14)+(10) is (-14)
Paige ran four miles a day last week. This week, she ran five miles a day. How did adding a mile most likely affect her workout?
Answer:
A. It increased both her intensity and her workout time.
Step-by-step explanation:
A. It increased both her intensity and her workout time.
B. It decreased her intensity but increased her workout time.
C. It increased her intensity but decreased her workout time.
D. It decreased both her intensity and work out time
Last week = 4 miles per day
This week = 5 miles per day
Intensity refers to how hard one exercises.
Workout time refers to how long one exercises the body.
By adding a mile, she has increased how hard she exercises her body (intensity))
And also increased how long she exercises the body (workout time) because the time she spent on 5 miles per day is more than time spent on 4 miles per day
solve for the unknown value
Answer:
77
Step-by-step explanation:
180-61-42
Answer:
x = 77°
Step-by-step explanation:
the total among these angles are 180° so add 61 + 42 which equals 103 then subtract it from the total
180° - 103° = 77°
x = 77°
11. The radius of a circle H is 7.5 inches. Calculate the diameter of the circle.
12. The radius of a circle is 8.2 centimeters. Calculate the circumference of the circle.
Answer:
11. 15in
12. 51.52211951887cm
PLSS HELP ME CUS YES
Answer:
Angle g = 90°
Angle between x and G = 30°
Angle x= 180-(90+30)
= 180-120=60°
which expression is equivalent to
-3x + 6y + 7x - 14?
A. -10x - 14
B. 2(2x+3y-7)
C. 4x - 6y + 14
D.4x + 6y - 14
E. 10x + 6y - 14
I'll give brainlist
D.4x + 6y - 14
This is the answer
You got paid
$45 to babysit your
nephew for 5 hours.
How much did you
get paid per hour?
Answer:
You get paid $9 per hour
Step-by-step explanation:
pretty easy i just need to know if i put these in the right order please help !
Answer:
the cone is not a prism, as it is not a cylinder. the star prism(lookimg like thing) is. alsp it is circular so it cannot be a prism(like the cylinder)
if a 30 foot wire is attached to the top of a 12 foot pole and stretched to the ground, find the angle the wire makes with the ground
Answer:
52 degrees
Step-by-step explanation:
Answer:
52 degrees sorry if that's wrong
NO LINKS!!! PLEASE HELP ILL GIVE BRAINLIEST
Answer:
for number one it is 6
for number two it is 48
Step-by-step explanation:
please mark brainliest
Answer:
Step-by-step explanation:
1. 3 · 2 (First power) = 3 · 2 = 6
2. 3 · 2 (Fourth power) = 3 · 16 = 48
Help me plzzz
Stefan bought 3 hamburgers and 4 fries for a total cost of $26.50.
Answer:
6.50
Step-by-step explanation:
Answer:
6.50
Step-by-step explanation:
the 7 one is too high to make sense and the rest are to low to make sense its a multiple choice question so it probably one mark for correct answer
A rectangular prism has a length of 18 meters, a height of 3 meters, and a width of 4 meters. What is its volume, in cubic meters?
Answer:
216m^3
Step-by-step explanation:
find the area of the face 12m
times the face by the length
18×12=216
Answer:
216 meters³
Step-by-step explanation:
L=18 H=3 W=4
V=LWH
V=(18)(4)(3)
V=216 meters³
Which of the following equations has 4 as a possible value of z?
Answer:
a
Step-by-step explanation:
4 to the power of 4 is just 4x4 which equals 16
Please please help me !!!
Answer:
D - x=y/12
Step-by-step explanation:
So lets just take one set of data from the table.
This is all we need.
So I am just going to set our values to:
x = 21
y = 252
Now lets plug this into each equation, ands ee if it is accurate or not:
21=12+252
=
21=264
Thats not right! Lets try the next one:
21 = 252/12
=
21 = 21
Thats correct! Lets just try the other ones anyway:
21 = 252 - 12
=
21=240
Thats not right! Lets try the last one:
21 = 12*252
=
21 = 52,424
That is most definatly not right!
So the answer is B, x=y/12
Hope this helps!
Consider these statements.
1. AB and AC are two sides of AABC and AB = AC
2. If two sides of a triangle are congruent, then the triangle is an
isosceles triangle.
Which conclusion can be drawn from these statements using
deductive reasoning?
A
m2ABC + m2ACB 90
B
AABC is an isosceles triangle.
с
Points A, B, and C are collinear.
BC = AC
Answer:
B
Step-by-step explanation:
if we match the two informations we can say that the triangle is isosceles
The ratio of dogs to cats at the animal shelter is 2:5. If there are 35 cats, how many dogs are there?
Answer:
Step-by-step explanation:
there are 18 dogs
Answer:
14
Step-by-step explanation:
So the ratio of dogs (2) to cats (5) is 2:5
How did we go from 5 to 35?
Multiply by 7
So multiply 2 with 7 which is 14
So there are 14 dogs
Hope this helps!
Find x such that x, 56, 65 is a Pythagorean triple.
Help ASAP
Answer: 59
Step-by-step explanation:
Answer:
x = 33
Step-by-step explanation:
b^2 = c^2− a^2 = 652 − 562 = 4225 − 3136 = 1089 =33^2
Let a and b be real numbers where a 4640. Which of the following functions could represent the graph below?
Of(x) = x(x – a)2(x – 634
f(x) = x(x – a) (x - b)2
f(x) = AX - a)(x – b)2
F(X) = x2(x - a) 5(x – b)
???????????????????????????????????///
Answer: is
59
Step-by-step explanation:
pls give brainly
What is the perimeter of this equilateral triangle?
Choices
4
20
40
60
Answer:
60
Step-by-step explanation:
If it is an equilateral triangle the sides are equal
24-x = 5x
Add x to each side
24-x+x = 5x+x
24 =6x
Divide by 6
24/6 =6x/6
4 =x
Each side is 5x or 5*4 = 20
Add the 3 equal sides
20+20+20 = 60
The perimeter is 60
Answer:
60
Step-by-step explanation:
In this case, to find the perimeter, we need to know the value of at least one side.
Since this triangle is equilateral, [tex]5x=24-x[/tex].
Adding x to both sides results in [tex]6x=24[/tex], and subsequently, [tex]x=4.[/tex]
Now that we know x equals 4, we can plug this into either 5x or 24-x and find out that one of the sides is 20.
Equilateral triangles have three equal sides, so 20 times 3, or 60, is the perimeter. I hope this helped!
Solve the following equations:
a)
4b = 20
Answer:
b = 5
Step-by-step explanation:
You want to get b on one side alone so you divide by 4.
20 divided by 4 is 5.
Answer:
b = 5
Step-by-step explanation:
4b = 20
Whatever we do to one side of the equation, we have to do to the other.
To "isolate the variable", or get "b" by itself, we have to divide both sides by 4
4b divided by 4 is b, since "4b = 4 times b"
20 divided by 4 is 5
4b = 20
b = 5
Which graph represents the function f(x) = 5x + 3?
6
5
A++
4
34
2
1
o
-6 -5 -4 -3 -2 -14
1
2
3
4
5
х
2
3
Answer:6
Step-by-step explanation:
Which graph represents the function f(x) = 5x + 3?
6
5
A++
4
34
2
1
o
-6 -5 -4 -3 -2 -14
1
2
3
4
5
х
2
3
The graph of the linear equation can be seen below.
Which graph represents the given function?
Here we have the linear function:
y = 5x + 3
To graph this, we need to find two points on the equation and then connect them with a line.
By evaluating in 0 we get:
y = 5*0 + 3 = 3
So the point (0, 3) is on the line.
By evaluating on 1 we get:
y = 5*1 + 3 = 8
So we have the point (1, 8).
Now we just plot them and connect them with a line, the graph is the one below.
If you want to learn more about linear equations:
https://brainly.com/question/1884491
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