Answer:
I think it's y = -1/2x -2
Step-by-step explanation:
use the formula y - y1/ y2- y1= x - x1/x2-x1
A square has a radius of 10 ft. Find the area of the square
Answer:
Hello hello
Step-by-step explanation:
Answer:
a square does not have a radius
Step-by-step explanation:
but you can find the area by squaring one side
(7) The volume of an ice cream cone is
113.04 cm3. If the radius is 3 cm, find the
height of the cone.
If the area of the triangle is 1010 cm 2, what is the missing height?
Answer:
17.7
Step-by-step explanation:
i could be wrong
which values of a b and c represent the answer in the simplest form
5/8 ÷ 3/8 = ab/c
Answer:
a = 1, b = 2, and c = 3
Step-by-step explanation:
5 ÷ 8 ÷ 3 ÷ 8
5 ÷ 8 × 8 ÷ 3
The 8 cancels out.
5 ÷ 3 or 5/3
5/3 = 1 and 2/3
Look at the image for another method.
someone, please help me
Brad's Medicare levy was $1312.50. This was 1.5% of his taxable income.
What was his taxable income?
PLEASE HELP!! please also explain the working out
Step-by-step explanation:
$1312.50×1.5%÷100
=20.25 that's taxable income
or
you can say $1312.50- 1.5%
=20.25
find the area of the semicircle (1/2 circle with a diameter of 10)
Answer:
39.25 unit²
Step-by-step explanation:
Radius of circle = diameter/2 = 10/2 = 5
Area of a circle = πr²
Area of ½ circle = ½ πr² = ½ x (22/7) x 5²
Area = 39.25 unit^2
A washer and a dryer cost $745 combined. The washer costs $95 more than the dryer. What is the cost of the dryer?
Answer:
let cost of washer be x
cost of dryer be $745-x
we have
cost of washer =$95+($745-x)
x=$95+$745-x
x+x=$840
2x=$840
x=$840/2=$420
the cost of washer =$420
cost of drier=$745-x=$745-420=$325
$325 is the cost of dryer.
Give that T = 37v/6v-5.4m a. Make V the subject of relation b. If T = 4.5 and M =7x10(7),calculate the value of v , leaving your answer in standard form
Answer:
[tex]v = \frac{5.4mT}{6T - 37}[/tex]
[tex]v = -1.701*10^8[/tex]
Step-by-step explanation:
Given
[tex]T = \frac{37v}{6v-5.4m}[/tex]
Solving (a): Make v the subject
[tex]T = \frac{37v}{6v-5.4m}[/tex]
Cross Multiply:
[tex](6v-5.4m)T = 37v[/tex]
Open bracket
[tex]6vT - 5.4mT = 37v[/tex]
Collect Like terms
[tex]6vT - 37v= 5.4mT[/tex]
Factorize:
[tex](6T - 37)v= 5.4mT[/tex]
Make v the subject
[tex]v = \frac{5.4mT}{6T - 37}[/tex]
Solving (b):
[tex]T = 4.5[/tex]
[tex]m = 7 * 10^7[/tex]
So, the expression becomes:
[tex]v = \frac{5.4mT}{6T - 37}[/tex]
[tex]v = \frac{5.4*7*10^7*4.5}{6*4.5 - 37}[/tex]
[tex]v = \frac{170.1*10^7}{27 - 37}[/tex]
[tex]v = \frac{170.1*10^7}{-10}[/tex]
[tex]v = -17.01*10^7[/tex]
[tex]v = -1.701*10*10^7[/tex]
[tex]v = -1.701*10^8[/tex]
The meterologist said the temperature was going to be 78 degrees
today. The thermomter reads 82 degrees. What is the percent error?
Answer:
5%
Step-by-step explanation:
hope this helps
I think I took the test. I'm not sure tho.
50 points! Describe the possible values of x in the figure shown. I will mark brainliest
Answer:
x > 14Step-by-step explanation:
Use the triangle inequality which states that for any triangle, the sum of the lengths of any two sides must be greater than to the length of the remaining side.
FH < FG + GH ⇒ 2x + 31 < 2x + 1 + x + 16 ⇒ x > 14FG < FH + GH ⇒ 2x + 1 < 2x + 31 + x + 16 ⇒ x > - 46GH < FH + FG ⇒ x + 16 < 2x + 31 + 2x + 1 ⇒ x > - 16/3Combine the above three inequalities:
x > 14Answer:
[tex]x > 14[/tex]
Step-by-step explanation:
By triangle inequality;
[tex]2x + 1 + x + 16 > 2x + 31 \\ 2x + x - 2x > 31 -17 \\ x > 14[/tex]
The possible values of x is any number above 14, that is, x=[ 15, 16, 17, 18, .....}, if x is integer.
Complete the the number pyramid using 1, 2, and 3
Help I beg please show work
A 3
B 94
C 1
D 47
Answer:
Step-by-step explanation:
15x+2=9x+20
6x=18
x=3
if it's asking for the angle measure, you will just do:
15*3+2=47
Mary took a math test and she got four questions incorrect and 21 correct. What percent did answer correctly?
Answer:
84%
Step-by-step explanation:
21 correct + 4 wrong = 25 questions in total
[tex]\frac{21}{25}[/tex] x 4 = [tex]\frac{84}{100}[/tex]
[tex]\frac{84}{100}[/tex] = 0.84
0.84 = 84%
An artist sold 10 paintings. Her first two sold for $50 and $350. She sold three at a gallery show for $250, $400 and $1,200. She sold her oil paintings on line for $410, $400 and $375. Family members bought two, one for $200 and another for $280. What is the IQR of the selling price of her paintings?
Answer:
250-400
Step-by-step explanation:
Answer:
150Step-by-step explanation:
There are 10 numbers representing the selling prices of paintings.
List the numbers in the ascending order:
50, 200, 250, 280, 350, 375, 400, 400, 410, 1200Median of the lower half is:
50, 200, 250, 280, 350 ⇒ Q1 = 250Median of the upper half is:
375, 400, 400, 410, 1200 ⇒ Q3 = 400The IQR is the difference between the upper and lower medians:
IQR = Q3 - Q1 = 400 - 250 = 150PLS HELP ME ASAP! The height and width of a rectangular prism are 26 yards and 24 yards respectively. Find the length of the
rectangular prism whose volume is 18,720 cubic yards.
Answer:
The length is 30 cubic yards.
Step-by-step explanation:
To find volume you use equation V=LxWxH
Since we already know the height, width, and volume we can input them into the equation.
18,720=L x 24 x 26
As you can see, the length is still unknown.
To figure it out though, you can multiply the height and width of the prism,
24 x 26 = 624
And then divide the volume, 18,720 by it.
18,720/624 = 30
Thus, your length is 30 cubic yards.
The expression(5a-4b)(5a+4a) *
A) 10a² - 8b²
B) 10a - 8b
C) 25a - 16b
D) 2 5a²-16b²
Answer:
I think question should change like this.
(5a-4b)(5a+4b)
(5a)(5a+4b) + (-4b)(5a+4b)
25a² + 20ab - 20ab -16b²
25a²- 16 b²
Step-by-step explanation:
8 thuusond divided by what number equal to 8 tens
Answer:
divided by 100
Step-by-step explanation:
8,000 / 100 = 8 in the tens, or 80
What is the solution to this system of equations?
10
8
6
2
y = x +4
y = -0.5x + 7
-2
2
4
6
A. (3, 1)
B. (2,6)
C. (1,3)
O
D. (6,2)
Answer:
option B is correct
Step-by-step explanation:
Hope it helps you
Which value of x makes the equation 1.25(4x − 10) = 7.5 true?
A. 3.5
B. -1
C. -0.5
D. 4
The awnser is x =4 or just 4
D=4
Answer:
x=4
Step-by-step explanation:
2) Dividing quantities in a given ratio
a) divide MVR 90 into two parts in the ratio 2:1.
Answer:
180:90
Step-by-step explanation:
For what value of x is the rational expression below equal to zero?
(x+5)(x - 1)
A. 4
ОО
B. 1
C. -5
d
D. -4
SUBMIT
Answer:
I can only guess that by x^2-2x-24 you mean the entire denominator. In cases like this is is important to use parentheses to remove any doubts. For example:
(x+8) / (x^2-2x-24).
This rational expression is undefined at any x for which the denominator, x^2-2x-24, is zero.
x^2-2x-24 factors into (x+4)(x-6). The roots are -4 and +6.
Thus, the given expression is undefined at {-4,6} (set notation).
Step-by-step explanation:
Help plz!!!!
A pyramid has an approximate height of 150 yards, and the square base has
side lengths of approximately 50 yards. What is the approximate volume of
the pyramid? (Hint: It takes 3 pyramids to make a prism)
Answer:
the answer might be 125,000 yards maybe
The equation 180 - X= 132 represents
the number of stamps in Colin's collection,
Solve the equation for X.
Answer:
x = 48
Step-by-step explanation:
equation:
180 - x = 132
subtract 180 from each side:
180 - 180 - x = 132 - 180
-x = -48
divide both sides by -1:
[tex]\frac{-x}{-1} = \frac{-48}{-1}[/tex]
x = 48
to check, substitute 48 for x:
180 - x = 132
180 - 48 = 132
132 = 132
. Solve for x
10 = 5(x + 8)
Answer:
x = -6
Step-by-step explanation:
10 = 5(x+8)
=> 5(x+8) = 10
=> 5x + 40 = 10
=> 5x = 10 - 40
=> 5x = -30
=> x = -30/5
=> x = -6
What is meant by the order of operations?
Answer:
Step-by-step explanation: The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
You go to the store and notice the people standing in line. 7 adults and 4 children. If this ratio stays the same and there 55 people in the store, how many would be children?
Answer:
20 kids
Step-by-step explanation:
so that totals to 11 (parents and kids)
55/11=5
4x5=20
20 kids
Find the L.C.M. of 16, 30 and 48
Answer:
240
hope this helps and pls give brainliest!
Answer:
The least common multiple (LCM) of 16, 30, and 40 is 240.
(Hope this helps! Btw, I answered first. Brainliest please!! :D)
HELP SIMPLE SEVENTH GRADE MATH PROBLEM. GIVING BRAINLIEST.
Answer:
D (6)
Step-by-step explanation:
FIRST METHOD
1. Use vector analogy (If you learnt)
Consider WS as a vector
x component of WS is 5
y component of WS is 3
2. Plug in numbers (Pythagorean Theorem)
[tex]\sqrt{5^{2}+3^{2}}[/tex] ≈ 5.83
Nearest integer is 6
SECOND METHOD
1. Distance between two points formula
[tex]d (length) = \sqrt{(x_{1}-x_{2})^{2}+(y_{1}-y_{2})^{2}}[/tex]
W = (x1,y1) S = (x2,y2)
W = (-2,-1) S = (3,2)
2. Plug in numbers
[tex]d (length) = \sqrt{(-2-3)^{2}+(-1-2)^{2}}[/tex]
3. d ≈ 5.83
Answer:D
Step-by-step explanation:
Can you tell me how to solve for X
Answer:
answer is D)10
Step-by-step explanation:
there's a square in the corner, and that tells you this angle is a right angle which is 90degrees
so 90-60=3x
30=3x
x=10
Answer:
A. 30
x=30
Step-by-step explanation:
That is a 90 degree angle. 90-60=30