Answer:
[tex]A)\ [-3+ (6-8)] - [40+ (5.3-7) +20.2] = -63.5[/tex]
[tex]B)\ -4 + [- 2.6-1 - (- 3.4)] + (- 5) * (- 3) + (- 10) =0.8[/tex]
[tex]C)\ -22 * \{- 5+ [8.3- (3.6-9)]\} - (- 2) * (3) =-185.4[/tex]
[tex]D)\ -9 - (- 2 + 5) * [- 3 + (- 5) - (+ 2) +1] =18[/tex]
[tex]E)\ 40 * \{- 12 * [4 + (- 6) * (- 5) -15.3 + 12]\} - 2 =-14738[/tex]
[tex]F) -21 * \{- [- 6 * (7-3)] - (7.6-8.3)\} - 89 =-607.7[/tex]
Step-by-step explanation:
[tex]A)\ [-3+ (6-8)] - [40+ (5.3-7) +20.2] =[/tex]
Resuelve todas las expresiones en el paréntesis interior
[tex][-3-2] - [40 -1.7 + 20.2][/tex]
Resuelve cada paréntesis
[tex]-5 - 58.5[/tex]
[tex]-63.5[/tex]
[tex]B)\ -4 + [- 2.6-1 - (- 3.4)] + (- 5) * (- 3) + (- 10) =[/tex]
Resuelve todas las expresiones en el paréntesis interior
[tex]-4 + [-0.2] + (- 5) * (- 3) + (- 10)[/tex]
Resuelve todas las multiplicaciones y paréntesis.
[tex]-4 -0.2 + 15-10[/tex]
[tex]=0.8[/tex]
[tex]C)\ -22 * \{- 5+ [8.3- (3.6-9)]\} - (- 2) * (3) =[/tex]
Resuelve todas las expresiones en el paréntesis interior
[tex]-22 * \{- 5+ [8.3 + 5.4]\} - (- 2). (3)[/tex]
Resuelve todas las multiplicaciones y paréntesis.
[tex]-22 * 8.7 +6[/tex]
[tex]-191.4 + 6[/tex]
[tex]=-185.4[/tex]
[tex]D)\ -9 - (- 2 + 5) * [- 3 + (- 5) - (+ 2) +1] =[/tex]
Resuelve todas las expresiones entre paréntesis interiores
[tex]-9 - 3 * [- 3 - 5 - 2 +1][/tex]
[tex]-9-3 * -9[/tex]
[tex]-9 + 27[/tex]
[tex]= 18[/tex]
[tex]E)\ 40 * \{- 12 * [4 + (- 6) * (- 5) -15.3 + 12]\} - 2 =[/tex]
Resuelve todas las expresiones entre paréntesis interiores
[tex]40 * \{- 12 * [4 - 6 * - 5-15,3 + 12]\} - 2[/tex]
Multiplicar -6 por -5
[tex]40 * \{- 12 * [4 + 30-15.3 + 12]\} - 2[/tex]
Resuelve todas las expresiones en el paréntesis interior
[tex]40 *\{- 12 * 30.7\} - 2[/tex]
Quitar todos los paréntesis
[tex]40 * -368.4 - 2[/tex]
[tex]-14736 - 2 \\[/tex]
[tex]=-14738[/tex]
[tex]F) -21 * \{- [- 6 * (7-3)] - (7.6-8.3)\} - 89 =[/tex]
Resuelve todas las expresiones entre paréntesis interiores
[tex]-21 * \{- [- 6 * 4] +0.7\} - 89[/tex]
Multiplicar -6 por 4
[tex]-21 * \{24 +0.7\} - 89[/tex]
Quitar todos los corchetes
[tex]-21 * 24.7 - 89[/tex]
[tex]-518.7 - 89[/tex]
[tex]=-607.7[/tex]
Simply the expression 6x + 1 - ( 3x -1 )
Answer:
3x+2
Step-by-step explanation:
distribute "-" into 3x-1 giving you -3x+1, combine like terms on both sides including 6x-3x and you get 3x+2
Sam borrows from the bank $12,000 to buy a car paying in simple interest $ 2,844 per year. Sam paid the loan in 3 years, what is the annual interest rate on the loan?
Answer:
3,468
Step-by-step explanation:
i multiplied 2,844 by 3 and got 8,532 i then subtracted that from 12,000 and got 3,468
Please help me with this
Answer:
i cant see it...
Step-by-step explanation:
...
A television costs $258.98. The sales tax rate is 8.5% . How much will. It cost to buy the television
Answer:
The cost is $280.99
Step-by-step explanation: First do 258.98 divided by 100 which will then equal 2.5898 times 8.5 equal 22.0133 which will then be rounded to 22.01 and then you add 258.98 + 22.01 and that will equal 280.99
Mrs. Jones rented a truck. Easy math problem. Only answer if you know how to do it. Help needed ASAP
Answer:
80%
Step-by-step explanation:
150/100*20=$30
150-30=120
120/150=0.8=80%
Help plz ASAP nowwwwwwww
Answer:
y = -3/4x + 5/4
Step-by-step explanation:
Points: (7, -4) and ( -1, 2)
Slope:
m=(y2-y1)/(x2-x1)
m=(2+4)/(-1-7)
m=6/(-8)
m= -3/4
Slope-intercept:
y - y1 = m(x - x1)
y + 4 = -3/4(x - 7)
y + 4 = -3/4x + 21/4
y = -3/4x + 5/4
Answer:
y = -3/4x + 5/4
Step-by-step explanation:
Hope this helps
Multiply. Reduce if possible, if you can simplify, what is the GCF you used ? what is 3/7 x 2/4
Answer:
3/14
Step-by-step explanation:
Parallel lines and tranvsveral
Answer:
angle 6=54*
Step-by-step explanation:
Transversal lines/alternate angles theorem
Martin needs to ship a box that weighs 12,000 grams. How should be move the decimal point to convert this number
to kilograms?
O 3 places to the left
O 3 places to the right
O 2 places to the left
O 2 places to the right
Question 4 please. I will mark brainliest!! i would at least like the equation of the graph thank you
Answer:
a. -3 < x ≤ 5
b. -3 ≤ y < 3
c. (0, 0)
d. x = -3, x = 1, x = 5
e. -3 < x ≤ - 1, and 1 ≤ x ≤ 3,
f. (-1, -1), and (3, -3)
Step-by-step explanation:
a. The domain of a function is the set of the possible independent variable values which is -3 < x ≤ 5
b. The range of a function is the set of the possible values of the dependent variable which is -3 ≤ y < 3
c. The y-intercept is the point the graph crosses the y-axis
The y-intercept in the graph is the point (0, 0)
d. f(x) ≥ 0 when x = -3, x = 1, x = 5
f(x) ≥ 0 over the following range; -3 < x ≤ - 1.5, 0 ≤ x ≤ 1.5, 4.5 ≤ x ≤ 5
e. The intervals over which f(x) is decreasing are;
-3 < x ≤ - 1, and 1 ≤ x ≤ 3,
f. The local minimums where f(x) has the minimum values are;
(-1, -1), and (3, -3)
Please help! 18/20. Will give brainliest! Spam answers will not be tolerated!
Factor. [tex]2x^5-7x^3-4x[/tex]
[tex]{ \sf{ \: factorise \: \: \: { \underline{ \green{2 {x}^{5} - 7 {x}^{3} - 4x}}}}} \\ \\ { \dashrightarrow{ \blue{ \sf{taking \: x \: common}}}}[/tex]
[tex]{ \leadsto{ \sf{ \green{ \:x(2 {x}^{4} - 7 {x}^{2} - 4)}}}} \\ \\ { \dashrightarrow{ \sf{ \blue{let \: {x}^{2} be \: equal \: to \: a}}}} \\ \\ { \leadsto{ \sf{ \green{ \: x( 2{a}^{2} - 7a - 4)}}}}[/tex]
[tex]{ \leadsto{ \sf{ \green{x(2 {a}^{2} - (8a \: - a) - 4}}}} \\ \\ { \leadsto{ \sf{ \green{x(2 {a}^{2} - 8a + a - 4)}}}} \\ \\ { \leadsto{ \sf{ \green{x(2a(a - 4) + 1(a - 4))}}}}[/tex]
[tex]{ \leadsto{ \sf{ \green{x(2a + 1)(a - 4)}}}} \\ \\ { \sf{ \: now \: putting \: the \: value \: of \: a}}[/tex]
[tex]{ \leadsto{ \green{ \sf{x(2 {x}^{2} + 1)( {x}^{2} - 4)}}}} \\ \\ { \leadsto{ \green{ \sf{ x( {x}^{2} + 1)( {x}^{2} - {2}^{2} )}}}} \\ \\ { \leadsto{ \green{ \sf{x( {x}^{2} + 1)(x + 2)(x - 2)}}}}[/tex]
Find all the missing sides and angles (picture attached)
Answer:
[tex]\boxed{x=73.74}[/tex]
[tex]\boxed{y=16.26}[/tex]
[tex]\boxed{z=25}[/tex]
Step-by-step explanation:
Hello there!
Algebra 1
The first thing we should find is the missing angle
Because this is a right triangle we can solve it using the Pythagorean Theorem
The Pythagorean theorem states that the sum of the two legs squared equal the hypotenuse squared
the formula... [tex]a^2+b^2=c^2[/tex] where a and b = legs and c = hypotenuse
we are given two legs so we plug in a and b and solve for c
[tex]7^2+24^2=c^2\\7^2=49\\24^2=576\\576+49=625\\625=c^2\\\sqrt{c^2} =c\\\sqrt{625} =25\\c=25[/tex]
so we can conclude that the missing side length ( or z) equals 25
now to solve for the angles
Trigonometry
We can solve for y using sin
sin = opposite side divided by the hypotenuse
the opposite of y is 7 and the hypotenuse is 25
so we set up an equation [tex]sin(y)=\frac{7}{25}[/tex]
now we solve for y
[tex]\frac{7}{28} =.28\\arcsin(y)=y\\arcsin(.28)=16.26020471[/tex]
then we round to the nearest hundredth
so we can conclude that angle labeled y = 16.26
basic geometry
Remember all of the angles in a triangle add up to equal 180 so we can find x by subtract the known angles from 180
180 - 90 - 16.26 = 73.74 so we can conclude that x = 73.74
Brian ate 2/3 of a pizza. His friend, Joseph ate 1/4 of what was left. How much pizza did joseph eat?
Answer:
[tex]\frac{1}{12}[/tex]
Step-by-step explanation:
[tex]\frac{2}{3}[/tex] = [tex]\frac{8}{12}[/tex]
[tex]\frac{12}{12}[/tex] - [tex]\frac{8}{12}[/tex] = [tex]\frac{4}{12}[/tex]
[tex]\frac{4}{12}[/tex] * [tex]\frac{1}{4}[/tex] = [tex]\frac{4}{48}[/tex] = [tex]\frac{1}{12}[/tex]
Tina realizes that she needs to figure out the answer to the question, "How many groups of 1/12 are in 2?"
Answer:
24
Step-by-step explanation:
To find how many 1/12 are in 2 divide 2 by 1/12
2/(1/12) = 2 x 12 = 24
The diagonal of a rectangle is 13 units. One side of the rectangle is 12 units. Find the length of the shortest side of the rectangle.
Answer:
Diagonal of the rectangle = 13 units c =13
side of rectangle = 12 units a = 12
area of the rectangle = l× b
In rectangle all the corner angle is 90 degree. A diagonal of the rectangle forms two right angle.so we use Pythagoras theorem.
formula ; a²+b²=c² a = 12 , c = 13
12²+b² = 13²
144 + b² = 169
b² = 169 - 144
=25
b = 5 units
a = 12 units
Step-by-step explanation:
What is the side lengths, in inches, of a cube with a volume of
1
1 cubic inch?
Answer:
1 in3 (3 is above inches)
Step-by-step explanation:
can I please have brainliest? :)
2x2 what is the answer
Answer:
4!
Step-by-step explanation:
Decrease R1400 in the Ratio 7:3
Answer:
Step-by-step explanation:
It's hard to tell what you mean. I'm going to assume you mean that you want what is left to be 3/7 less.
1400 - 3/7 1400 = 1400 - 600 = 800
The value of R1400 when decreased by the ratio 7:3 is R600.
What is the value of R1400 when it is decreased?Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained in another value.
R1400 X 3/7 = R600
To learn more about ratios, please check: https://brainly.com/question/25927869
Jo said 565 times 34 one half is 595111 eight fourths is she correct. If not what is the correct answer.
Answer: Incorrect, 19492.5
Step-by-step explanation:
Given
Jo said 565 times 34 one half i.e. [tex]565\times 34\ \dfrac{1}{2}[/tex] is [tex]595111[/tex]
Solving for a mixed fraction
[tex]\Rightarrow 565\times \dfrac{34\times 2+1}{2}\\\\\Rightarrow 565\times \dfrac{69}{2}=\dfrac{38985}{2}=19492.5[/tex]
Clearly, [tex]19492.5\neq 595111[/tex]
Thus, Jo is wrong
Write the third missing congruent statement that will allow us to prove the triangles congruent by SAS.
Answer:
LOOK AT YOUR ANSWER IN PICTURE
It takes Carol 30 minutes to drive to work using two roads. She drives 24 mph on a small road for hour. Then she drives 56 mph on a highway for hour. How far does Carol travel to work?
Complete question :
It takes Carol 30 minutes to drive to work using two roads. She drives 24 mph on a small road 1/2 for hour. Then she drives 56 mph on a highway for 1/4 hour. How far does Carol travel to work?
Answer:
26 miles
Step-by-step explanation:
The distance traveled is given by :
Distance = speed * time
Distance covered on small road :
24 mph * 1/2 hours = 12 miles
Distance covered in highway :
56 mph * 1/4 hours = 14 miles
Total miles traveled = 12 + 14 = 26 miles
what is the measure of angle x?
Answer:
C
Step-by-step explanation:
first we want to find the missing angle at the top
to do that we subtract the given angles by 180
the square indicates that the angle is a right angle or that it equals 90
180-90-40=50
we know that the angle equal to 50 and x are supplementary angles so they will add up to equal 180 so to find x we subtract 50 from 180
180-50-130 so the answer is c
have a great day :D
need help so bad pleasss
Answer:
y=2/3x-6
Step-by-step explanation:
i hope this helps :)
pls help! will mark brainliest if correct
Answer:
[tex]x = -2, y = 6[/tex]
Step-by-step explanation:
[tex]-x + 4 = -4x-2[/tex]
[tex]x = -2[/tex]
Plug back into either one of the equations to get y = 6
find the value of given expression
=》
[tex]32 + 32 \div 32[/tex]
Answer:
32+32÷32=32+1=33 is your answer
3y^4+9y^3-120y^2=0 Need Answer ASAP
Answer:
y = 0 , 5 , − 8
(*￣3￣)╭
[tex]3y^4+9y^3-120y^2=0\\y=0,5,8[/tex]
Simplify The following Expression:
45 + (x - 12)
Answer:
The answer is x + 33
Step-by-step explanation:
1) Remove parentheses.
[tex]45 + x - 12[/tex]
2) Collect like terms.
[tex]x + (45 - 12)[/tex]
3) Simplify.
[tex]x + 33[/tex]
Therefor, the answer is x + 33.
Answer:
x+33 is your answer
Step-by-step explanation:
45 + (x - 12)
45+x-12
x+45-12
x+33
A cat can eat 1/2 of a bag of food in 3/4 of a month. How much food can the cat eat in 1 month
Answer:
the cat can eat 1 1/4 bag of cat food n 1 month
Step-by-step explanation:
brainliest plzAfter tax and tip,the bill totaled $63.00. What was each persons share? Show your work
I hope someone knows.
Answer:
x = 9
Step-by-step explanation:
This is a 45-45-90 right triangle so the sides are in the ratio x: x: [tex]x\sqrt{2}[/tex]