Answer:
c=-18 d=2
Step-by-step explanation:
[ 6 8 -11 15 ]-[c+2 3 -5 d-4 ]=[ 22 5 -6 17]
The equation tells that when the two matrices are subtracted we get the resultant matrix.
Each element of the first matrix corresponds to each element of the second matrix
From above
6- (c+2)= 22
6- c-2= 22
4-c= 22
-c= 22-4
-c= 18
c= -18
And
15-( d-4)= 17
15- d+4= 17
19-d= 17
-d= 17-19
-d= -2
d= 2
Answer:
D
Step-by-step explanation:
c= -18
d= 2
i cant figure this out.
help on math homework
Answer:
b can I have
Step-by-step explanation:
If the sum of the interior angles of a polygon is 540°, what kind of polygon is it?
(theres no answer selection cuz you might just guess it) sorry.-
[tex] \sf \huge \gg{Pentagon}[/tex]
Pentagon's Sum of the interior angles is 540°.
…………………………………………………………………………
Answer:
It's a pentagon.
Step-by-step explanation:
The sum of interior angles in an n-gon is (n-2)*180°
Look at this like this - a triangle's sum of angles is 180°
For each additional vertex you can split it from the polygon by cutting out a triangle. You can split a quadrangle into 2 triangles. You can cut a pentagon into a triangle and a quadrangle (or 3 triangles in total). You can split a hexagon into a pentagon and a triangle... So each additional vertex adds 180° of interior angles.
So we solve for n
540° = (n-2)*180°; divide both sides by 180°
3 = (n - 2) * 1
3 = n - 2
n = 5
So it's a pentagon.
Find the arc length of the semicircle. Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal. For the semicircle it says 10
Answer:
L = πr
Step-by-step explanation:
Formula for calculating the length of an arc is expressed as:
L = theta/360 × 2pir
The angle substended by the semi circle is 180°
Substitute the given values
L = 180/360×2πr
L = 1/2 × 2πr
L = πr
Hence the length of the arc of a semi circle in terms of pi is L = πr where:
r is the radius of the semi circle
Triangle Review Last one (Math)
Answer:
A=30
Step-by-step explanation:
Set your equation up as following:
180=90+(x+37)+(x+67)
180=90+37+67+2x
180-90-37-67=2x
-14=2x
-14/2=x
-7=x
Angle A = x+37
A=-7+37
A=30
Answer:
m<A = 30
Step-by-step explanation:
The right square is a 90 degree angle
All angles in a triangle add up to 180 so:
x + 37 + x + 67 + 90 = 180
2x + 194 = 180
2x = 180 - 194
2x = -14
x = -7
<A:
x + 37
-7 + 37
30
What is the length of AB?
Answer:
14 unites
Step-by-step explanation:
You go up 6 units then go to the right 8 units. You add 8 and 6 to get 14 units. Therefore, the length of AB is 14 units.
If this answer has helped you please mark as brainliest
one fruitloops are gay 2 what is 8=-4+x please and thank you
Answer:
Okayyy.... anywayss...
Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 12
Step-by-step explanation:
I hope that this answer helps you to understand your question asked. If you have any further questions, please ask them below.
Have a great rest of your day/night!
WORTH 30!!!
Find the value of tan theta, if cos theta= 4/5; 0< theta < 90
Answer:
I'm almost positive that A and D are wrong but please don't kill me if I'm wrong
Step-by-step explanation:
What is the area?
A. 78.5 ft2
B. 110.9 ft2
C. 96.0 ft2
D. 80.9 ft2
***SHOW WORK***
Rocco has 48.7 cups of flour in his storage unit. He needs 2/18 that amount to use for his homemade volcano. What is the total number of cups needed for his experiment?
Step-by-step explanation:
There are 48.7 cups in total
2/18 of 48.7 cups is needed for volcano
Total amount needed for experiments are :
2/18 of 48.7 = 97.4/18 = 5.411 cups
If Rocco has 48.7 cups of flour in his storage unit and He needs 2/18 of that amount to use for his homemade volcano then total number of cups needed for his experiment is 5.411
What is fraction ?fraction is a mathematical expression representing the division of one whole number by another
Here given that Rocco has 48.7 cups of flour in his storage unit. He needs 2/18 that amount to use for his homemade volcano.
Hence total number of cups needed for his experiment can be written as :
[tex]\frac{2}{18}\times \text{Total cups}[/tex]
[tex]\frac{2}{18}\times 48.7\\\\\\\frac{2}{180}\times 487\\\\\\\\\frac{974}{180}\\\\ = 5.411[/tex]
If Rocco has 48.7 cups of flour in his storage unit and He needs 2/18 of that amount to use for his homemade volcano then total number of cups needed for his experiment is 5.411
To learn more about fraction visit : https://brainly.com/question/78672
I AM GIVING OUT BRAINIIEST
1. Which of the following is NOT true about a square?
The angles have a sum of 180°.
The diagonals are congruent.
The diagonals are
perpendicular.
The diagonals bisect each other.
Answer:
the angles have a sum of 180°
The circles are identical. What is the circumference of each circle? Circle 1 radius =3x. Circle 2 radius = 2x+3
Answer:
19.44x and 12.96x+19.44
Step-by-step explanation:
Given data
Circle 1 radius =3x.
Circle 2 radius = 2x+3
The expression for the circumference is
C= 2πr
Circle 1 radius =3x.
C= 2*3.24*(3x)
C= 19.44x
Circle 1 radius = 2x+3
C= 2*3.24*(2x+3)
C=6.48*(2x+3)
C=12.96x+19.44
which of the following is a solution of 3x -2 = 13
A. 3
B. -3
C. 5
D. -5
Answer:
Option C: 5Step-by-step explanation:
3x - 2 = 13
=> 3x = 13 + 2
=> 3x = 15
[tex] = > x = \frac{15}{3} [/tex]
=> x = 5 (Ans)
Answer:
Add
2
2
2
to both sides of the equation
3
−
2
=
1
3
3x-2=13
3x−2=13
3
−
2
+
2
=
1
3
+
2
=
5
Step-by-step explanation:
the answer is C. 5
Question #16: Suppose you have a bag containing 30 marbles. If the
probability of drawing a black marble is 50%, how many black marbles are
in the bag? *
15
2
20
18
Answer:
15
Step-by-step explanation:
50% is half, so what is half of 30?
IS IT 3/4 PLSS HELPP
Answer:i think its 3/4
Step-by-step explanation:
Answer:
im pretty sure it is 3/4
Step-by-step explanation:
PLEASE HELP EASY MATH!!!!
Wilson hiked 9 miles in 2 hours. At this same rate, what is the total number of miles Wilson could hike in 12 hours?
Answer:
54 miles
Step-by-step explanation:
if you divide both the miles and hours, you would get 4.5 equals 1 hour, so multiply by 12 and you get 54!!
I need help with this question
Answer:
1 <—5⁰
25<—5²
1/25<—5-²
5<—5¹
HELP ILL GIVE BRAINLIEST
Answer:
c
Step-by-step explanation:
Which statement accurately describes the economic characteristics of modern
Texas?
A. Texas has one of the strongest and most diverse economies in the country.
B. Texas has a fairly strong economy, but growth has slowed since 2004.
C. Texas has a stable economy, but lacks industrial diversity.
D. Texas has a strong oil industry, but all other sectors have struggled recently.
Answer:
D
Step-by-step explanation:
sorry if incorrect
Answer:
The answer is A. Texas has one of the strongest and most diverse economies in the country.
Step-by-step explanation:
Texas is a densely populated state with numerous successful industries and businesses. It has many different cultures and ways of life. Texas has grown and adapted in order to succeed and not only remain stable and functioning, but also climb the ladder of achievement and keep its position (there). (Modern) Texas has a diverse economy that continues to thrive.
Diego’s dog weighs more than 10 kilograms and less than 15 kilograms. Select the set of inequalities that must be true if w is the weight of Diego’s dog in kilograms.
A w > 10 and w < 15
B w < 10 and w < 15
C w > 11 and w > 15
D w < 11 and w > 11
E w > 10 and w > 15
F w < 15 and w < 11
Answer:
Step-by-step explanation:
Correct
w > 10
w > 10
Incorrect
w < 10
w < 10
Incorrect
w > 11
w > 11
Incorrect
w < 11
w < 11
Correct
w < 15
w < 15Correct
w > 10
w > 10
Incorrect
w < 10
w < 10
Incorrect
w > 11
w > 11
Incorrect
w < 11
w < 11
Correct
w < 15
w < 15Correct
w > 10
w > 10
Incorrect
w < 10
w < 10
Incorrect
w > 11
w > 11
Incorrect
w < 11
w < 11
Correct
w < 15
w < 15Correct
w > 10
w > 10
Incorrect
w < 10
w < 10
Incorrect
w > 11
w > 11
Incorrect
w < 11
w < 11
Correct
w < 15
w < 15Correct
w > 10
w > 10
Incorrect
w < 10
w < 10
Incorrect
w > 11
w > 11
Incorrect
w < 11
w < 11
Correct
w < 15
w < 15Correct
w > 10
w > 10
Incorrect
w < 10
w < 10
Incorrect
w > 11
w > 11
The slope of a line is 1, and the y-intercept is -1. What is the equation of the line written in slope-intercept form?
Answer:
y = x - 1
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Identify variables
Slope m = 1
y-intercept b = -1
Step 2: Write Equation
Substitute in general form: y = 1x + -1Simplify: y = x - 1please help me
I'm not very good with math so I am stuck
x=1
Step-by-step explanation:
f(x)=0 is basically the x-axis. the line passes through 3 points on the x-axis, the only correct pint listed is x=1. :)
Please help!!!!!!!!!!!!!!
Someone help me pls
Answer:
b^5
Step-by-step explanation:
Answer:
The answer will be b5
Step-by-step explanation:
Multiply b-6 by b11 by adding the exponents
The annual average high temperature in a town was 50° in the year 2008 and
55° in the year 2009. What was the percent increase in average high
temperature in this town between the two years?
Given:
The annual average high temperature in a town was 50° in the year 2008.
The annual average high temperature in a town was 55° in the year 2009.
To find:
The percent increase in average high temperature in this town between the two years.
Solution:
The percent increase formula:
[tex]\%\text{ Increase}=\dfrac{\text{New value - Initial value}}{\text{Initial value}}\times 100[/tex]
Substitute new value = 55 and initial value = 50 in the above formula.
[tex]\%\text{ Increase}=\dfrac{55-50}{50}\times 100[/tex]
[tex]\%\text{ Increase}=\dfrac{5}{50}\times 100[/tex]
[tex]\%\text{ Increase}=\dfrac{1}{10}\times 100[/tex]
[tex]\%\text{ Increase}=10[/tex]
Therefore, the temperature in this town between the two years increased by 10%.
Evaluate the expression for a = 10 and b = 12.
a+4(b−3)
Answer:
46
Step-by-step explanation:
a + 4(b - 3)
Substitute the values for a and b.
10 + 4(12 - 3)
Subtract inside the parenthesis.
10 + 4(9)
Multiply.
10 + 36
Add.
46
Find the zeros of the function. Enter the solutions from least to greatest. f(x) = (x - 1)^2-36
Answer:-5 and 7
Step-by-step explanation:
is my answer correct or nah if not pls fix I have 4 min
Answer:
It seems correct to me when i put it in my calculator, of course i could be wrong
Step-by-step explanation:
