HELP‼️‼️
Evaluate if x = -4 and y = 2: 2x + 3xy
Your answer
O This is a required question
Answer:
-32
Step-by-step explanation:
change all the x and y's to the numbers
2(-4) + 3(-4)(2)
-8 + -24
simplify 3x^2-2x+1
x=2
Answer:
9
Step-by-step explanation:
3(2)^2 - 2(2) + 1
3(4) - 4 + 1
12 - 3
9
An airplane takes 3 hours to travel a distance of 2700 miles with the wind. The return trip takes 5 hours against the wind. Find the speed of the plane in still air and the speed of the wind.
Answer:
720 mph, 180 mphStep-by-step explanation:
Let the speed of the plane is x, speed of the wind is y
Speeds add up when in directions are same and subtract when opposite
Then as per the given we have equations:
3( x + y) = 27005(x - y) = 2700Simplify the equations:
x + y = 900x - y = 540Sum the two equations and solve for x:
2x = 900 + 5402x = 1440x = 720 mphFind the value of y:
y = 720 - 540 = 180 mphSpeed of the plane is 720 mph
Speed of the wind is 180 mph
For each percentage, find a matching statement to describe it.
10% of a number
25% of a number
50% of a number
75% of a number
80% of a number
100% of a number
Equal to that number
12 of that number
14 of that number
110 of that number
34 of that number
45 of that number
Answer:
mk,m
Step-by-step explanation:
mlmkm km
Please help me I can’t even find this problem on the i
Internet
George has just purchased a small rectangular fish tank that holds 837 milliliters of water. The tank has a width of 6.2 cm and a
height of 9 cm.
What is the length of the fish tank?
Answer:
Step-by-step explanation:
Answer:
15 cm
Step-by-step explanation:
Area = Length ⋅ Width ⋅ Height
let's set:
Area: 837
Length: X
Width: 6.2 cm
Height: 9cm
837 = X ⋅ 6.2 ⋅ 9
First multiply 6.2 and 9 to get 55.8
Next divide 837 by 55.8 and you get 15
therefore, the length (x) is equal to 15
Allex has a $20 bill. At the corner store, he buys a
bag of Hot Fries for $1.99 and 6 packs of gum. He
gets $11.77 in change. What is the price of one
pack of gum?
Answer:
First we need to subtract the hot fries. 20 - 1.99 = 18.01
he gets 11.77 so lets subtract it is 6.94 left so now divide by 6 is 1.5666666 or 1.6 per pack
Step-by-step explanation:
What is the area to 16 square feet
Answer:
1.48645ft
Step-by-step explanation:
brainliest plssss
How to graph this slop (put a pic if u can )pls help due at 11
Answer:
hopes this help luv <3
Step-by-step explanation:
What are the solutions of this quadratic equation
Answer:
It's A.
Step-by-step explanation:
f(x)=sin x-3 cos x is a sinusoid true or false
Answer:
true
Step-by-step explanation:
Can u help me?? please
Answer:
you checked the right box. Its b
Step-by-step explanation:
22/5 divided by 2/5 is 11
b
a line includes the points 2, 10 and 0, 2 what is its equation in slope intercept form
Answer:
y = -4x + 2
Step-by-step explanation:
y = mx + b ( slope-intercept)
1. Find Slope:
[tex]\frac{y^2 - y^1}{x^2 - x^1}[/tex]
Lets name 2 as y2 and 10 as y1. And 0 as x2 and 2 as x1.
[tex]\frac{2-10}{0-2}[/tex] = [tex]\frac{-8}{2}[/tex] = -4
m/slope = -4
2. Find y-intercept:
[tex]y = mx +b[/tex]
2 = -4(0) + b
= 2 = b
Y-intercept/b = 2
3. Put into slope-intercept form:
y = mx + b
= y = -4x + 2
Hope that helps! :D
find the labeled points
Answer:
A= (6,76.5)
B =(32,18)
C=(80,0)
Step-by-step explanation:
The inequalities given are ;
3x + 8y ≥ 240
9x + 4y ≥ 360
x≥6
y≥0
The graph for the inequalities is as follows;
From the graph,
A= (6,76.5)
B =(32,18)
C=(80,0)
whats 10 to the power of 8 equals what
Answer:
[tex]100000000[/tex]
Step-by-step explanation: can i have brain plz!
help ive been stuck on this for a while now
Answer:
a. 18
b.10
c.64
Step-by-step explanation:
a. 27/3=9
9x3=27
9x2=18
b. 36/9=4
9x4=36
40/4=10
c. 48/3=16
3x16=48
4x16=64
Mike has 1/8 of a teaspoon How many times should Mike use this teaspoon to measure 4 teaspoons of vanilla extract?
Answer:
32 times
Step-by-step explanation:
1/8 x 8= 1
1/8 x 32= 4
Answer:
Mike should use 32 times this teaspoon to measure 4 teaspoons of vanilla extract.
Step-by-step explanation:
1/8x=4
x=4/(1/8)=(4/1)(8/1)=32/1=32
HELP I NEED HELP ASAP
Answer:
C.) the company will have 25 customers every 3 days.
Step-by-step explanation:
Find the inequality represented by the graph.
Answer:
y < 3/4x
Step-by-step explanation:
Please let me know if you want me to explain how to do this problem :)
Find the slope of the line that goes through the following points.
A. –1
B. 1
C. –4
D. –7
Answer: B) Slope is 1
Step-by-step explanation:
Y² - Y¹ divide by X² - X¹
Plug in: -3 - (-4) divide by 1 - 0
= 1 divide by 1
= Slope is 1
100 POINTS PLEASE ANSWER HONESTLY,
YOU ONLY HAVE TO DO HALF IF U WANT BUT IF YOU WANT BRAINILY DO FULL 100 POINTSSSSSSSSs
Answer:
2.−2b−8
4.12k−2
5.−32t−20
6.8g+17
7.3a−2
8.−15d+30
9.2a+2b
10.35a−21
11.10f−15
12.−2x+4
13.2a+20
Step-by-step explanation:
i will do the right part after u finish with the left oen if u don't understand it look at the letters to know which problem is the answer
Answer:
hes right the GUY ABOVE IS 100% right i swear on my life
Step-by-step explanation:
HELP GUYS THIS IS NOT FUNNY
WHAT IS 20 PLUS 20 IMCNOT LYING
Answer:
its 40 dude
Step-by-step explanation:
Mr. Fowler's science class grew two different varieties of
plants as part of an experiment. When the plant samples
were fully grown, they compared their heights.
Pls help
Option D is the correct option.
What is Mean Absolute Deviation?'The mean absolute deviation (MAD) is the mean (average) distance between each data value and the mean of the data set.'
According to the given problem,
The mean height Variety A = 19 [ from the table ]
The mean height of variety B = 13 [ from the table ]
The spread is given by the mean absolute deviation, which 1.2 for Variety A and 2.4 for Variety B. So we can see that, the spread in Variety A is lesser than the spread in Variety B, which shows that the average height of Variety A varies less than the average height of Variety B.
We can see from the table that the average height of a variety A is indeed greater than that of Variety B. Also we can see that the Mean Absolute deviation of Variety A is 1.2 which is lesser than the Mean Absolute deviation of Variety B.
Hence, option D is correct since the average height of Variety A is greater than Variety B, and also the mean varies lesser in Variety A than in Variety B.
Learn more about mean absolute deviation here: https://brainly.com/question/10528201
#SPJ2
Marbelle has 10 shoes. Hailey has 4 shoes. Mabye has 400 shoes. How many shoes do they have all togherter?
Answer:
414
Step-by-step explanation:
10+4+400=414
Answer:
414
Step-by-step explanation:
Help me for cookie pls
Answer:
x = 83°
Step-by-step explanation:
ZW is a straight angle which means it is equal to 180°
So 97° + x° = 180°
180° - 97° = 83°
PLEASE HELP! how do you find Angle B, Angle C and length of A?
I need this pls and thank you.
Graph DEF and its image when you translate DEF using vector
Answer:
The image coordinates are D'(8, 5), E'(12, 3) and F'(10,0)
Step-by-step explanation:
Given the vertices of △ DEF are D (2, 5), E (6, 3), and F (4, 0). We have to translate the triangle using the vector (6, 0)
Now, translation by vector (6, 0)
D (2, 5)=D'(2+6, 5+0)=D'(8, 5)
E (6, 3)=E'(6+6, 3+0)=E'(12, 3)
F (4, 0)=F'(4+6, 0+0)=F'(10,0)
Now, we have to label the coordinate of the triangle or to get image of triangle after translation.
Hence, The image coordinates are D'(8, 5), E'(12, 3) and F'(10,0)
Step-by-step explanation:
If it takes 20 minutes to drive to the store, 9 minutes to walk from your car to the back of the store, then back to the register, 2 minutes to walk back to you car, and 20 minutes to drive back why has my dad been gone for 9 years?
Answer:
Maybe he ran out of gas. Give him a bit time to refill, and you'll be fine :)
There are 9 female performers in a dance recital. The ratio of men to women is 2:3. How many men are in the dance recital?
Answer:
6 men
Step-by-step explanation: