Answer:
2
Step-by-step explanation:
4-5= -1
13-18+2= (-5+2)= -3
-1-(-3)=2
Don't forget your order of operations
P (parenthesis)
E (exponents)
MD (multiplication/division)
AS (addition/subtraction)
Answer:
2
Step-by-step explanation:
use pemdas (parenthesis, exponents, multiplication, division, addition, and subtraction) to solve:
first: 4-5 = -1
second: 13-18+2 = -3
third: (-1) - (-3) = 2
Determine if the sequence is geometric. If it is, find the common ratio. ( -4, 12, -36, 108, ... )
Step-by-step explanation:
to know whether it is geometric progression or not, you need to find the common ratio. to find the ratio divide the (n+1)th term by n th term
so, 12/-4 = -3
also, -36/12 = -3
here u see the ratio is always same, i.e., common ratio.
thus u can say it is a geometric series with common ratio -3
12. The function M(h) = 10e-0.173h can be used to find the number of milligrams M of morphine that is
in the patient's bloodstream h hours after the drug has been administered.
(a) What was the initial dosage?
(b) How many milligrams will be present after 1 hour? After 4 hours?
please help..
Answer:
Part A; Initial dosage is 10 milligrams
Part B:
8.4113 milligrams after 1 hour
5.0057 milligrams after 4 hours.
Step-by-step explanation:
It is given M(h)= 10 [tex]e^{-0.173h}[/tex]
Initial dosage is the 10 milligrams
After 1 hour, plug in h as 1
So, M(1)=10[tex]e^{-0.173*1}[/tex]
Simplify the right side
M(1)=10(0.84113)
M(1)= 8.4113 milligrams.
Now, after 4 hours
M(4)=10 [tex]e^{-0.173*4}[/tex]
M(4)=10(0.50057)
M(4) =5.0057 milligrams
3
The grid shown below is in the shape of a rectangle.
What is the area, in square units, of the shaded part of the rectangle?
А.
14
B
24
С
28
D
48
Answer:
hello
Step-by-step explanation:
but dear where is the picture?
What is the measure of
Answer:
43
Step-by-step explanation:
Natasha has a bag of 25 gift bows: 6 white, 5 gold, 4 red, 7 blue, 2 green, and 1 pink.
If Natasha picks bows at random, what percent chance is there that the first two gifts
she wraps will have a white bow?
Answer:
24%
Step-by-step explanation:
6/25=0.24
0.24=24%
Solve for the missing angle:
A 41 degrees
B 108 degrees
C 82 degrees
D 298 degrees
Will give brainliest IF the answer is right and u have a explanation
Answer:
True
Step-by-step explanation:
If any number is multiplied by a negative in this case, the answer will of course be negative
what is 5 times a number minus 3 is 12 ?
Answer:
5*x-3=12
the number is 3 because 5*3=15 and 15-3=12
Answer:
3
Step-by-step explanation:
x - 3 = 12
12 + 3 = 15
15 - 3 = 12
5( ? ) = 15
15/5
? = 3
5(3) = 15 - 3 = 12
Hope this helps dude
Divide 45 pens between devika bhoomika in the ratio 4:5
Answer:
20:25
Step-by-step explanation:
add how many parts (4+5=9)
45/9=5
4*5=20, 5*5=25
therefore, 20:25
please help i really need this
Answer:
D
Step-by-step explanation:
You have the correct answer.
-8x+2<114
Make sure to type “x” and the the inequality symbol “<,>,<_,_>”
help? part a:
Students at Sunnyside Middle School are selling tickets to the annual talent show. Below is a table showing ticket prices for students and adults.
Talent show ticket prices
Student Price $3
Adult Price $5
What amount of money would be collect if 60 students and 30 adults bought tickets? Show or explain how you got your answer.
Answer:
$330
Step-by-step explanation:
$3 times 60 students = $180
$5 times 30 adults = $150
$180 + $150 = $330
Answer:
Step-by-step explanation:
you would find your answer by multiplying the amount of students/adults by how much each ticket costs
60 x $3 = $180
30 x $5 = $150
$180 + $150 = $330
Solve for r 0.5(r+2.76)=3
Answer:
r=1.43147648, −4.19147648
Step-by-step explanation:
Express 0.0175 in scientific notation.
Answer:
Step-by-step explanation:
1.75 x 10^-2
Answer:To equal the original number, you would have to multiply 1.75 by 0.01 or 10-2. Therefore, the proper scientific notation for 0.0175 would be 1.75 x 10-2.
(4c+3d) - (6c-6d) - (3c-5d)
Simplify please <3
Answer:
Solution
−5+14
Step-by-step explanation:
Distribute
(4+3)−1(6−6)−1(3−5)
(4+3)−6+6−1(3−5)
Distribute
(4+3)−6+6−1(3−5)
(4+3)−6+6−3+5
(4c+3d) - (6c-6d) - (3c-5d) (4+3)−6+6−3+5
4+3−6+6−3+5
Combine like terms
4+3−6+6−3+5
−5+3+6+5
Combine like terms
−5+3+6+5
−5+14
Solution
−5+14
write the expression in exponential form.
Answer:
[tex] \sqrt[7]{ {x}^{2} } [/tex]
Step-by-step explanation:
can be rewrite as
[tex] \sqrt[n]{a} {2}[/tex]
so x
[tex] {x}^{2 \div 7} [/tex]
Leon got a reduction of $40 on a Geometry set
which was marked $480.
(a) What fraction was the reduction?
(b) What percentage was the reduction?
(c) What percentage of the cost did Leon
pay for the Geometry set?
Whats 1+1 and 2+2 and 3+7 I’m in the first grade
Answer:
1 answer is 2
2 answer 4
3 answer 10
Step-by-step explanation:
Add 1+1
get 2
Add 2+2
get 4
Add 3+7
get 10
Alexa wants to purchase some new supplies for making jewelry
Answer:
B A A
Step-by-step explanation:
1. Let x= -2 and y= -5. (NC.7.NS.2) Which expression has a negative value? A. X+y B.X-y C.[x] [y] D. X/y
Answer:
A. X + Y
Step-by-step explanation:
From this question x = -2 and y = -5
We are to find out the expression that would give a negative value.
X+Y
(-2)+(-5)
+(-) gives a negative sign. So we have
= -2-5
= -7
For x - y
(-2) - (-5)
-(-) = positive
= -2 + 5
= 3.
For [x][y]
= (-2) x (-5)
= 10
since a negative sign multiplied with another negative sign gives a positive result
For X/Y
= -2/-5
= 2/5 the result here is positive because 2 negative signs when divided cancel out.
Therefore the answer is option A since it's result is negative. Others are positive
What is the quotient? X+5√3x^2+4x+5 A.) 3x^2-11+60/x+5 B.) 3x-11+60/x+5 C.) 3x^2-11-50/x+5 D.) 3x-11-50/x+5 Please hurry this is timed!
Answer:
[tex]3x - 11[/tex]
Step-by-step explanation:
Given
[tex]\frac{3x^2 + 4x + 5}{x + 5}[/tex]
Required
Determine the quotient
First, we check if the divisor (x + 5) can divide the dividend (3x^2 + 4x + 5) without having a reminder
Equate the denominator to 0.
[tex]x + 5 = 0[/tex]
[tex]x = -5[/tex]
Substitute -5 for x in the numerator
[tex]3x^2 + 4x + 5 = 3*(-5)^2 + 4 * (-5) + 5[/tex]
[tex]3x^2 + 4x + 5 = 60[/tex]
This means that it has a reminder of 60
To get the quotient, we subtract 60 from the numerator and evaluate
[tex]\frac{3x^2 + 4x + 5}{x + 5}[/tex] becomes
[tex]\frac{3x^2 + 4x + 5 - 60}{x + 5}[/tex]
[tex]\frac{3x^2 + 4x - 55}{x + 5}[/tex]
Expand the numerator
[tex]\frac{3x^2 + 15x - 11x - 55}{x + 5}[/tex]
Factorize:
[tex]\frac{3x(x + 5) - 11(x + 5)}{x + 5}[/tex]
Factor out x + 5
[tex]\frac{(3x- 11)(x + 5)}{x + 5}[/tex]
Cancel out x + 5
[tex]3x - 11[/tex]
Hence, the quotient is [tex]3x - 11[/tex]
What is the formula for the volume of a sphere?
V=(1/3)*(π)*(r*r)*(h)
V=π*r*r*h
V=b*l*h
V=(4/3)*(π)*(r*r*r)
Answer:
D,
Step-by-step explanation:
the volume of a sphere is 4/3πr^3
Help me out please an thank you
Answer:
Answer is D
Step-by-step explanation:
because its sideways its x = y^2
and because its facing right its positive.
pls answer ill give brainliest to the best
Which number line shows a graph of the inequality x > −25?
Answer:
D im pretty sure :) hope this helps
Step-by-step explanation:
Consider the rectangle. Which pair of expressions represents the perimeter of the rectangle?
PLEASE HELP!!!
Answer:
6x + 2 and 2x + (x + 1) + 2x + (x + 1)
Step-by-step explanation:
Perimeter of a rectangle = 2(length + width)
Length = 2x
Width = x + 1
Perimeter of a rectangle = 2(length + width)
= 2{2x + (x + 1)}
= 2(2x + x + 1)
= 2(3x + 1)
= 6x + 2
Perimeter = length + width + length + width
= 2x + (x + 1) + 2x + (x + 1)
Please Help!!! Find the approximate volume by using 3.14 (not the pi key) Round to the nearest hundredth when necessary show your work!
The approximate volume of first cone is 709[tex]mi^{3}[/tex] and the volume of second cone is 262 [tex]cm^{3}[/tex].
What is volume?Volume is amount of substance a container can hold in its capacity. Volume of cone is basically 1/3 *π[tex]r^{2}h[/tex] in which r is radius and h is height of cone.
How to calculate volume?We have been given two cones. First is having radius of 7 mi and
height 14 mi and second is having radius of 5 cm and height of 10 cm. We are required to find out the volume of both the cones.
Volume of first cone=1/3 *π[tex]7^{2}* 14[/tex]
=(49*3.14*14)/3
=708.86
Approximately 709 [tex]mi^{3}[/tex]
Volume of second cone =1/3π[tex]5^{2} *10[/tex]
=(25*3.14*10)/3
=261.67
Approximately 262 [tex]cm^{3}[/tex].
Hence the approximate volume of first cone is 709[tex]mi^{3}[/tex] and the volume of second cone is 262 [tex]cm^{3}[/tex].
Learn more about volume at https://brainly.com/question/463363
#SPJ2
Brent leaves school to go home. He walks 10 blocks north and then 6 blocks west. If Brent could walk in a straight line to the school, what is the exact distance between Brent and school
Answer:
11.66 units
Step-by-step explanation:
Given that he walks 10 blocks north and then 6 blocks west..
When combined with the straight line to the school, this forms a right angled triangle with the straight line as the hypotenuse.
Hence, let the straight line be h
h^2 = 10^2 + 6^2 (using Pythagoras theorem)
h^2 = 100 + 36
h^2 = 136
h = √ 136
h = 11.66 units
what is this answer i didn’t go to school for it
Answer:
-2 -1,1, and 2 only
Step-by-step explanation:
Please this is due in an hour!!!!!!
Answer:
22 pounds of shrimp
Step-by-step explanation:
Hope this helped!
pls i need help is dis qs :(
Answer:
Step-by-step explanation:
Fig 1
<f=180-2×30=180-60=120
<D and <E are base angle of isosceles triangle.
Fig 2
AB=AC=BC=8
All the side of equilateral are equal and all interior angle also equal.
Answer:
Step-by-step explanation:
a) ΔFED is isosceles triangle. EF = ED
∠F = ∠D =x {Angles opposite to equal sides are equal}
∠F + ∠E + ∠D = 180 {Angle sum property }
x +x + 30 = 180
2x + 30 = 180
2x = 180 -30
2x = 150
x = 150/2
x = 75
∠F = 75
b) All the angles are equal. So, it is an equilateral triangle. In equilateral triangle all sides are equal.
So, AB = 8