Answer:
-0.316
Step-by-step explanation:
2.63-0.87-2.076
=-0.316
Hope it helped!
2(x + 3) + 5(x + 7)
Simplified
Answer:
7x + 41
Step-by-step explanation:
2(x + 3) + 5(x + 7) ← distribute both parenthesis
= 2x + 6 + 5x + 35 ← collect like terms
= 7x + 41
What is f(-4) for the function f(x) =-3x-8
Answer:
f(-4) = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = -3x - 8
f(-4) is x = -4
Step 2: Evaluate
Substitute in x: f(-4) = -3(-4) - 8Multiply: f(-4) = 12 - 8Subtract: f(-4) = 4Answer:
the correct answer is:
-3 × -4 -8 = 12 - 8 = 4
A spotlight can be adjusted to effectively light a circular area of up to 7
meters in diameter. What is the maximum number of square meters
that can be effectively lit by the spotlight?
(Draw a circle with a diameter of 7 meters, then solve.)
Answer:
38 square metersStep-by-step explanation:
Use the circle area formula:
A = πr² = πd²/4Substitute the value of the diameter and calculate:
A = 3.14*7²/4A = 38.465 m²Maximum number of square meters is 38
Answer:
Diameter of the spotlight is 7 meters
Radius=Diameter/2=7/2 meters=3.5 meters
Area of the circular spotlight is :---
π×(radius)² =22/7×3.5×3.5=38.5 meter²
The maximum number of square meters that can be effectively lit up by the spotlight is 38.5 square meters.
PLEASE HELP I WILL MARK BRAINLY
Answer:
The answer is C
Step-by-step explanation:
We apply the given formula: y= 2x + 1.
0 x 2 = 0 + 1 = 1, so A is incorrect.
1 x 2 = 2 + 1 = 3, C is the only one with 3 as the second number, so C is correct
Please help it is an emergency!!!!! Answer the second question i already answered the first question. This first question is the first part answer the second question please help!!!!!!!!!!
Answer:
im sorry i dont know buut i think its the third one
Step-by-step explanation:
A pizza company sells a small pizza for $6. Then it charges $2 per topping. What equation corresponds to this scenario? (20 points)
Answer:
A
Step-by-step explanation:
Determine the center and radius of the following circle equation: x^2+y^2-8x+6y-75=0 x 2 +y 2 −8x+6y−75=0 Center: \big(( , \big)) Radius:
Answer:
Compare x^2 +y^2-8x-6y=75 with the general circle equation x^2+y^2 -2ax-2by+c=0
-2a =-8 And -2b=-6
a=4 b=3
c=-75
To find the radius use the equation
r^2=a^2+b^2-c
r^2=4^2+ 3^2-(-75)
r^2=25+75=100
r=10(radius is always positive)
Hence the center is (4,3) and radius 10
Step-by-step explanation:
Here are some numbers 8 11 13 18 25 37 8 13 18 is an arithmetic progression and the rule is to add. Use three of the numbers to make a different arithmetic progression. Describe the rule.
Answer:
[tex]Progression: 11, 18, 25[/tex]
[tex]Rule: Add\ 7[/tex]
Step-by-step explanation:
Given
[tex]List: 8, 11, 13, 18, 25, 37[/tex]
Sample
[tex]Progression: 8, 13, 18;[/tex]
[tex]Rule: Add\ 5[/tex]
Required
Generate a progression with three numbers and state the rule
We will use the method of trial and error to get the solution
Start with digit 11
Add 7:
[tex]11 + 7 = 18[/tex]
Add 7:
[tex]11 + 7 + 7 = 18 + 7 = 25[/tex]
Hence, the progression is: 11, 18 and 25
Rule: Add 7
Find the Mean,
3, 9, 13, 8, 10, 2
Mean
can someone help me?
Answer:
7.5
Step-by-step explanation:
3 + 9 + 13 + 8 + 10 + 2 = 45
There are 6 numbers so we divide 45 by 6
45/6 = 7.5
Mrs. Wilson tells you that the next test is worth 100 points and contains 38 problems. Multiple-choice questions are worth 2 points each and word problems are worth 5 points. How many of each type of question are there
Answer:
30 mcq and 8 word problems
plz mark as brainliest
Which is the order from least to greatest?
3.2
kilograms
3.2
decigrams
3.2
centigrams
3.2 decigrams, 3.2 centigrams, 3.2 kilograms
3.2 kilograms, 3.2 decigrams, 3.2 centigrams
3.2 centigrams, 3.2 decigrams, 3.2 kilograms
Answer:3.2 centigrams, 3.2 decigrams, 3.2 kilograms
Step-by-step explanation:
Answer:
3.2 centigrams, 3.2 decigrams, 3.2 kilograms
Bags of flour come in 3 sizes:
Small bag: A 500 g bag costs 90p.
Medium bag: A 2 kg bag costs £3.40.
Large bag: A 4 kg bag costs £7.60.
Calculate the cost of 2 kg for the small and large bags.
Give your answer in pounds to 2 dp.
Write the bag that is the better value in the comments.
Answer:
Ik where u got this q from but:
small bag is £3.60
large is $3.80
Step-by-step explanation:
the 500 grams x 4 to get 2kg then do 90p x 4
then
4kg divided by 2 to get 2kg as the question states, then do £7.60/2
hegarty maths anyone?
I will give BRAINLIEST!!! Please answer as soon as possible
Answer:
2 c ( 7c + 1 )
Step-by-step explanation:
because 14 and 2 go into the table of 2
you first find out what number in table 2 go into 14 in this case 7 times 2 and then you find what number in the time table 2 give you 2 so it's 2 times 1. because it's c squared you can't not put both c inside due that would not be factorizing due that it's common and it does not have to be common.
so the answer will be 2c(7c+1)
What is the slope of the line that passes through the points (2, -3) and (5, 1)?
Answer:
The slope is 4/3 :)
Step-by-step explanation:
Need help please!!!!
Answer:
15/x-2
Step-by-step explanation:
Cant attach the photo but you use a division table
Judy's heart beats 70 times a minute. At this rate, how many times does her heart beat in an hour?
Answer:
4,200 hbph
Step-by-step explanation:
Hope this helps and have a great day!!!
Answer:
4200 times
Step-by-step explanation:
If there is 70 beats in a minute, and 60 minutes in an hour. All you do is 70*60.
VOTING BRAINLIEST 10 POINTS! Rectangle PQRS and its side lengths are shown in the figure.
Which side lengths belong to a rectangle that is NOT similar to rectangle PQRS?
A. 4.5 ft by 3 ft
B. 13.5 ft by 9 ft
C. 6 ft by 4 ft
D. 12 ft by 9 ft
Answer:
its 100% d.)
Step-by-step explanation:
plz mark me
Two and a half hours later than 3:30 is
What is it??
Answer:
1 o'clock
Step-by-step explanation:
plz brainliest!
Answer:
6:00
Step-by-step explanation:
3:30+2:30=6:00
If that's what u mean
What is 100 - 10 x 3
brainly and points :)
Answer:
The answer is option A
Step-by-step explanation:
Hope this helps! ;)
Clementine and Jake make cookies for the school bake sale. Clementine baked 72 cookies. Jake baked twice as many as Clementine. How many cookies did they bake altogether? They baked 216 cookies together.
Answer:
The total number of cookies they baked altogether is 216 cookies
Step-by-step explanation:
Here, we want to know the number of cookies that they baked together
From the question, we are told that Clementine baked 72 cookies while Jake baked twice as much
what this mean is that the number of cookies baked by Jake will be (2 * 72) = 144 cookies
Thus, the total number of cookies baked by the two of them will be;
72 + 144 = 216 cookies
Joe went to the store and bought 4 cans of peanuts for $7.80 .What is the constant of proportionality?
Answer:
$1.95 for one can of peanuts.
Step-by-step explanation:
Square CDFG below contains several angles. Which pairs of angles in square CDFG are complementary? Select all that apply. С C D 27° 63° | М 64° 26° G F UL Angles DCM and MCG Angles MGF and MGC Angles FGM and MCD Angles DCM and DMC
Answer:
angles FGM and MCD, angles DCM and DMC
Step-by-step explanation:
Answer:
angles FGM and MCD, angles DCM and DMC
Step-by-step explanation:
Aliyah is drawing a ball from one bag and a tile from another bag the first bag contains four green balls and four yellow balls the second bag contains tiles 1 through 5 search
Complete question :
Aliyah is drawing a ball from one bag and a tile from another bag the first bag contains four green balls and four yellow balls the second bag contains tiles 1 through 5 search
What is the probability that she draws a green ball and a tile numbered with 4?
Answer:
1 / 10
Step-by-step explanation:
Given:
Bag content :
Green balls = 4
Yellow balls = 4
Probability = required outcome / Total possible outcomes
P(drawing a green ball) = 4 / 8 = 1/2
Total number of tiles = 5
P(drawing tile numbered 4) = (number of tiles numbered 4 / total number of tiles) = 1 / 5
P(drawing a green ball) * P(drawing tile numbered 4)
= 1 / 2 * 1 /5
= 1 / 10
Solve for r.
r/-4 = 250
Answer: r= -1000
Step-by-step explanation:
Solve for r by simplifying both sides of the equation, then isolating the variable
Answer:
-1000
Step-by-step explanation:
-4 x 250 = -1000
-1000/-4= 250
PLZ MARK BRAINLIEST
have a great day! :)
I need help ASAP....
Answer:
the third one
Step-by-step explanation:
I do not know 100% but I am pretty sure so good luck and plz let me know if I am wrong.
A pair of shorts regularly cost $35 are on sale for 20% off what is the price of the shorts?
f(x) = 3x² + 4x – 6
g(x) = 6x3 – 5x2 – 2
Find (f – g)(a).
Step-by-step explanation:
(-6x^3+8x^2+4x-4)
option D is correct answer
Answer:A
Step-by-step explanation:
MULTIPLE QUESTIONS FOR 100 POINTS IF CORRECT YOU WILL GET BRAINLIEST!!! PLEASE HELP
1. Do Charlotte's calculations make sense? Why or why not? Make sure to address each step in your answer and use complete sentences to explain your reasoning.
2. Charlotte is redecorating the master bedroom in her house. She has purchased a new bedroom set and also plans to paint the room and put in new flooring. The room is rectangular, with dimensions of 16 feet (length) by 13 feet (width). The walls in the room are 9 feet tall, and the room contains two doors and two windows.
Charlotte has decided to put new carpet in the bedroom. The carpet she chose costs $1.85 per square foot, not including the cost of labor or other related materials. She was given the following information by the local flooring store where she is purchasing the carpet.
She is required to purchase a piece of carpet that includes a 3-inch overlap on all sides. Labor and material costs will relate to the area of this piece.
The labor costs are $23 per hour, per person.
A two-person carpet crew can lay 50 square feet of carpet each hour.
The crew that will complete the job at Charlotte's house will be a four-person crew.
There is an additional $75 fee to cover the cost of equipment, materials, and supplies.
What are the dimensions of the piece of carpet that Charlotte must purchase? Note: Express your answer as a decimal number and do not round.
Length:
feet; Width:
feet.
3. Charlotte is redecorating the master bedroom in her house. She has purchased a new bedroom set and also plans to paint the room and put in new flooring. The room is rectangular, with dimensions of 16 feet (length) by 13 feet (width). The walls in the room are 9 feet tall, and the room contains two doors and two windows.
Charlotte has decided to put new carpet in the bedroom. The carpet she chose costs $1.85 per square foot, not including the cost of labor or other related materials. She was given the following information by the local flooring store where she is purchasing the carpet.
She is required to purchase a piece of carpet that includes a 3-inch overlap on all sides. Labor and material costs will relate to the area of this piece.
The labor costs are $23 per hour, per person.
A two-person carpet crew can lay 50 square feet of carpet each hour.
The crew that will complete the job at Charlotte's house will be a four-person crew.
There is an additional $75 fee to cover the cost of equipment, materials, and supplies.
Recall that the area of a rectangle is found by multiplying the length and width of the rectangle. What is the area of the piece of carpet that Charlotte must purchase? Note: Express your answer as a decimal number and do not round.
_____ square feet
Answer:
Yes, they do make sense because the amount of square feet is equal to the amount of money needed to make the purchase in the mathematical abbreviations.
Step-by-step explanation:
Help me with number 1 please