angle 1 — 90
angle 2 — 180 - (90 + 63) = 27
angle 3 — 180 - (90 + 54) = 36
PERCENTS!!
due today help!!!! (:
The temperature in Virginia fell
from 12.3°C to -4.7°c. What is
the difference between the two
temperatures?
Answer:
17
Step-by-step explanation:
you add the absolute values
The line y = mx + c passes through the points (-2, 1) and (4,4).
Write down a pair of simultaneous equations involving m and c.
Solve the simultaneous equations.
Answer:
Step-by-step explanation:
Insert x for -2 & 4 and y for 1 & 4
1=-2m+c, 4=4m+c
solve the equation, m=1/2, c=2
Answer:
y = 1/2m + 2
Step-by-step explanation:
1 = -2m + c (1)
4 = 4m + c (2)
2 = -4m + 2c (1*)
(1*) + (2) = 6 = 3c
c = 2
y = mx + 2
4 = 4m + 2
2 = 4m
m = 1/2
so y = 1/2m + 2
Factor the polynomial: x^7 - x^5
Select one:
a. x^5(1 - x)
b. x^5(1 - 2x)
c. x^5(x^2 - 2x)
d. x^5(x^2 - 1)
Answer:
d. x^5(x^2 - 1)
Step-by-step explanation:
x^7 - x^5
Factor out x^5
x^5(x^2−1)
Consider x^2−1. Rewrite x^2−1 as x^2−1^2. The difference of squares can be factored using the rule: a^2 - b^2 =(a−b)(a+b).
(x−1)(x+1)
Rewrite the complete factored expression.
x^5(x−1)(x+1)
Simplify.
(x^2 - 1)x^5
Swap terms to the left side.
x^5(x^2 - 1)
Answer: D. [tex]x^{5} (x^{2} -1)[/tex]
Step-by-step explanation:
x^5 (x^2-1)
x^5 (x^2-1^2)
x^5 (x+1)(x-1)
Solve the following equation algebraically:
-16 = 16x?
How many solutions does this equation have? Explain.
a. -1 = x3; One solution because only -1 will satisfy the equation.
b. -1 = x2; No real solution because there is no real number that, when squared, produces -1.
c. 1= x?: Two solutions because the square root of 1 is positive 1 and negative 1.
d. 1=-x?: One solution because only -1 will satisfy the equation.
Write a rational number between -3 and -4.
Answer:
-3.25
Step-by-step explanation:
Answer:
-3.25
Step-by-step explanation:
sorry I'm wrong.....im not that good at math
For a sample size of 120 and a population parameter of 0.4, what is the standard deviation of the normal curve that can be used to approximate the binomial probability histogram?
Look at the picture and answer, Please show work as well
Answer:
1. Boys =61
2.=53
3.122
4.128
what is the correct equation of the line shown at the right?
Answer:
F
Step-by-step explanation:
rise/run is 3/2 which is the number before the x and the y intercept (the last number in the equation) is 3
Find AC please, help is very much appreciated.
Answer:
AC ≈ 67.9
Step-by-step explanation:
15² = 9 (3x + 1 + 9)
225 = 9 (3x + 10)
225 = 27x + 90
135 = 27x
x ≈ 19.29
AC = (3x + 1 + 9)
AC = 3 (19.2857...) + 1 + 9
AC = 57.857... + 1 + 9
AC = 57.857... + 10
AC ≈ 67.9
Lucy went to the pet store to buy 17 fish for her aquarium. She bought Fancy Goldfish for $13.49 each and Plecos for $3.25 each. She spent a total of $198.61. How many of each kind of fish did Lucy buy?
Step-by-step explanation:
let gold fish= X
let Plecos fish= Y
X +Y = 17................(I)
13.49X + 3.25Y =198.61........(II)
solve simuteniously to get
X = 14
Y = 3.....therefore
she bought 14 gold fish and 3 plecos fish
Few more questions due tonight help is greatly appreciated!! Here is the questions:
1. Jose is making a pitcher of lemonade. The recipe requires 4 cups of water for every 1/2 cup of sugar. How many cups of water will he need if he uses one cup of sugar?
2. Marquise uses 1/3 of a yard of fabric to make 1/2 of a blanket. If Marquise wants to make a blanket for his sister, how many yards of fabric will he need?
3.
On a map of Durham, Hillside High School and Rogers-Herr Middle School are 6 1/2 inches apart. If every inch represents 1/4 of a mile, how many miles apart are the two schools?
4.Walter is making a paper-mache statue for art class. To make the paper-mache sticky, he needs to combine 1/2 a cup of flour for every 1 cup of water and 2/3 cup of glue. If Walter used one cup of glue, how many cups of flour will he need?
Answer:
1) 8 cups
2)2/3 of a yard
3)1 5/8 miles
4) 3/4 cups
Step-by-step explanation:
I hope this helps :)
Let me know if you need an explanation for any of them
RECTANGULAR PRISM, I know this is simple but my brain is malfunctioning under pressure. Will give a brainlist to fastest answer. Thanks :)
L = 7 in
W = 8 in
H = 9 in
Answer: lxWxH
7x8x9=504in
Step-by-step explanation:
At the most recent dance ASB sold 143 tickets and collected $1470 of students sold for $10.00 and teachers tickets sold for $15.00 how many teachers attended the dance
Answer:
8
Step-by-step explanation:
1470 = 10s+15t
143 = s+t
1470 = 10(143-t)+15t
40 = 5t
8 = t
Find the total surface area of the following cylinder: r= 3 cm 3 cm SA= [? ]n cm
plz help man, im frustrated and i need 1 more answer
I'm pretty sure that the area of the cylinder is 113.1 cm
Do the side lengths 9, 12, and 16 make a Pythagorean Triple?
Answer:
hmmmmmm i think im not 100% sure
Step-by-step explanation:
mark brainliest if right and if wrong then give 2 stars please
(13-2x^3+6x)-(7x^3+9-4x)
Answer:
if you simplify the expression you would get: -9x^3 + 10x + 4
Hope this helps:)
Find two integers whose sum is -14 and product is 33
um- answer and explanation please
Answer:
a. 11
b. 18
Step-by-step explanation:
8 + 3 = 11
8 + 8 + 2 = 18
Answer:
I do not know I think the person that did is on somthing
Step-by-step explanation:
pls help! No wrong answers pls ;v;
5 × 0.8 = 4
and that's all there is
Find the length of the missing side.
Answer: i think 80 not sure tho i failed my last test
Step-by-step explanation:
Answer:
80 in
Step-by-step explanation:
Because this is a right triangle we can find the length of the missing side using the Pythagorean Theorem
Given the hypotenuse and one leg we do
[tex]c^2-b^2=a^2[/tex]
where c = hypotenuse and b = leg
[tex]82^2=6724\\18^2=324\\6724-324=6400\\\sqrt{6400} =80[/tex]
so we can conclude that the missing side length is equal to 80
Which type of line, dashed or solid, would you use to graph the given
equation: y < 3x - 5
solid
dashed
none
Answer:
dashed
Step-by-step explanation:
when its < or > its dashed, when its the other ones its solid
3x + 5 > 16
x is an integer.
Find the smallest value of x.
Answer:
4
Step-by-step explanation:
3x + 5 > 16
3x > 16 - 5
3x > 11
x > 11 / 3
x > 3.6666...
The smallest value would be 4.
Answer:
4
Step-by-step explanation:
Given
3x + 5 > 16 ( subtract 5 from both sides )
3x > 11 ( divide both sides by 3 )
x > [tex]\frac{11}{3}[/tex] , that is
x > 3 [tex]\frac{2}{3}[/tex]
If x is an integer then the smallest value of x is 4
HELP PLEASE
find the solution to the system of equations
finding angle measures with trig. Find the missing angle measures. Round to the nearest whole number
Answer:
let angle be x
Step-by-step explanation:
relationship between perpendicular and hypotenuse is given by sin angle
sin x =p/h
sin x=13/26
x=sin-¹(13/26)=30°
2.relationship between perpendicular and base is given by tan angle
tan x =p/b
tan x =7/16
x=tan -¹(7/16)=23.63°
3.relationship between between perpendicular and base is given by tan angle
tan x =p/b
tanx=31/50
x=tan-¹(31/50)=31.8°
4.relationship between base and hypotenuse is given by cos angle
cos x =b/h
cos x=5/7
x=cos-1(5/7)=44.4°
5.relationship between perpendicular and hypotenuse is given by sin angle
sin x =p/h
sin x=4/14
x=sin-¹(4/14)=16.6
6..relationship between base and hypotenuse is given by cos angle
cos x=6/7
x=cos-¹(6/7)=31.0027
7.relationship between perpendicular and base is given by tan angle
.tanx=29/37
x=tan-¹(29/37)=38.09
8.relationship between perpendicular and hypotenuse is given by sin angle
.sin x=43/60
x=sin-¹(43/60)=45.78
9..relationship between base and hypotenuse is given by cos angle
cos x=32/44
x=cos-¹(32/44)=43.34
Redbox rents out both video games and movies. They charge $2 for each video game and
$1 for each movie rented. Last week the total number of rentals was 114 and the machine
made a total of $177. How many movies and games were rented? What are the two
equations we can make? One is about the price, the other is the total rentals.
Answer:
1x + 2y = 177 (price)
x + y= 114 (rentals)
Step-by-step explanation: x= movies y= video games
Answer:
56
Step-by-step explanation:
add and then multiply
will give brainliest if right
SAKHDSKGgsgdyasygudayf
a boy has $5 coins and a $10 coins they are eight coins all together and their value is $55 how many of each kind does he have
Answer:
3 $10 coins and 5 $5 coins
Step-by-step explanation:
Apostrophes are used to indicate __________.
long quotations
lists
appositives
possession
possessions because lists use commas and appositives replace nouns.
---
hope it helps
Answer:
DDDDDD possession
Step-by-step explanation:
what is the equivalent slope intercept for 5x = 4 + y
Answer: -5
Step-by-step explanation:
Answer:
y = 5x - 4
Step-by-step explanation: