Answer:
D. -3z+2
Step-by-step explanation:
Steps:
Remove parentheses: (a) = a
= 5z+9-(8z+7)
....
Simplify
5z+9-8z-7: -3z+2
Answer:
-3z +2
Step-by-step explanation:
A expression in terms of z is given to us and we need to simplify out the given expression . The give an expression to us is ,
[tex]\implies (5z + 9 ) - ( 8z + 7 )[/tex]
Recall that , + × - = - . We have ,
[tex]\implies 5z + 9 - 8z - 7 [/tex]
Combining the like terms and simplifying ,
[tex]\implies 5z - 8z - 7 +9 \\\\\implies \underline{\underline{ -3z +2 }}[/tex]
Hence the last option is correct .
The sum of two numbers is 10. The larger number is 4 times the smaller number. What are the two numbers? Let x = the smaller number. Lety = the larger number. Which two equations represent the system for this word problem? Equation 1: Equation 2:
4(2)+2=10
X=2
Y=8
X+y=10
Y=4x
Simplify 8 over -4 divided by -3 over 9
Answer: .074 continuing
Answer:
6/1
Step-by-step explanation:
Hope this helps:)
A large box holds 125% as many toys as a small box. If the large box hold 25 toys, how many toys does the small box hold? Your answer
Which problem solving strategy would be best to solve this problem?
Jim and Lillian are painting a wall that is 15 ft wide and 9 feet tall. How much paint will they need to buy?
A. work backwards
B. use a formula
C. make a table, chart or list
D. make a model or diagram
Answer:
The correct option is;
B. Use a formula
Step-by-step explanation:
Given that Jim and Lillian have the dimensions of the wall they want to paint, therefore, in order to know how much paint they need to buy, they should proceed as follows;
1) Determine the quantity of paint required to paint a unit area of the wall, and record the quantity UA
2) Calculate the area, A, of the wall they want to paint, which is 15 ft. × 9 ft. = 135 ft.²
3) The amount of paint needed, AmP is therefore given by the following formula
AmP = A × AU = 135 × AU
Answer:i dont know
Step-by-step explanation:
find the constant rate of change
Answer:
- 2 ft/ s
Step-by-step explanation:
The rate of change is the slope m of the line.
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (0, 80) and (x₂, y₂ ) = (40, 0) ← 2 points on the line
m = [tex]\frac{0-80}{40-0}[/tex] = [tex]\frac{-80}{40}[/tex] = - 2
Rate of change is - 2 ft/ s
Please help if possible due really soon thank you so much❤️❤️
Which regression equation best fits these data?
Answer:
the answer is
B I got it right on edge
Plzzzzz help it's an exam !!! In triangle HIJ, m
Answer:
84
Step-by-step explanation:
(3× + 12)+ (5× +9) +(2× +9) = 180degrees
10× + 30 = 180
10× = 180-30
× = 15
5×15+9 = 84
PLS HELP BEEN STUCK FOR AN HOUR BRAINLIEST AND 26 POINTS!!!!
Match each statement (term) with its value in relation to 0 (definition).
Match Term Definition
A building is 37 feet tall. A) −37
The scuba diver was 37 feet below sea level. B) –25
The basement is 13.7 feet below ground. C) –13.7
Oliver owes his sister $25. D) 2.5
Erica jumped 2.5 feet above the ground. E) 37
pls help (15 pts)
whats the value of p
I need help with this plz
Answer:
C.
Step-by-step explanation:
if four people dont want it and there are 14 people total, then it would be (14-4). The photos cost $3 so it would be 3(14-4)=$30
Answer:
C
Step-by-step explanation:
from 14 friends you have to take away the 4 that do not want a photo
(14- 4 ) is the number of kids Charlie will have to pay for
and will pay $3 for each (14-4) kids
3(14-4) is the cost
3(14-4) = 3*10 = is $30
21/x=7 the solution
Step-by-step explanation:
×/21 x ×/21 = 7× x/21
x= 1/3
Which sentence below is a run-on? PLEASE HELP!!! ASHAP
!
A. Kirsten and Victoria walked the dog to the park and hung out.
B. Kirsten brushed her dog after dinner. She decided that she would take him for a walk.
C. Kirsten brushed her dog after dinner she took the dog for a walk and ran into Victoria.
D. Kirsten ran into her friend Victoria while she was walking her dog.
Answer:
C
Step-by-step explanation:
I hope that is right. Hope I helped
What is the value of the expression below?*
(0 - 3) - 8 (+4)
0 -47
o –52
-37
-24
write 132 as a product of prime factors.
Answer:
132
Step-by-step explanation:2 x 2 x 3 x 11
10. How many terms are in the algebraic expression 2x -9y+17w?
Answer:
There are 3 terms
Step-by-step explanation:
The terms are 2x, -9y, and 17w
Plz Helppp meeee assapppp
Given:
A right angled triangle.
To find:
The value of x.
Solution:
We have,
Base = x
Hypotenuse = [tex]\sqrt{5}[/tex]
In a right angle triangle,
[tex]\cos \theta = \dfrac{Base}{Hypotenuse}[/tex]
For the given triangle,
[tex]\cos 45^\circ= \dfrac{x}{\sqrt{5}}[/tex]
[tex]\dfrac{1}{\sqrt{2}}= \dfrac{x}{\sqrt{5}}[/tex]
Multiply both sides by [tex]\sqrt{5}[/tex].
[tex]\dfrac{\sqrt{5}}{\sqrt{2}}= x[/tex]
[tex]\dfrac{\sqrt{5}}{\sqrt{2}}\times \dfrac{\sqrt{2}}{\sqrt{2}}= x[/tex]
[tex]\dfrac{\sqrt{10}}{2}= x[/tex]
Therefore, the required value of x is [tex]\dfrac{\sqrt{10}}{2}[/tex].
Identify the partial quotient in the first step of this problem, as shown: A2 B100 C200 D20
Answer:
C200
Step-by-step explanation:
21 goes into 43 2 times. Because of place value, it really means 200.
21 x 200= 4200
Answer:
c is the answer
Step-by-step explanation:
because 4200 divided by 21 is 200
hope this helps
Suppose that 15 inches of wire cost 45 cents at the same rate how many inches of wire would be bought for 33 pls fast
Answer:
If we are talking about cent's it would be 11 inches of wire
if we are talking about the wire, then 33in would be equivalent to 66 cents
Step-by-step explanation:
im not sure about the second one but the first answer is correct. Please give brainliest by the way
Answer:
11 inches
Step-by-step explanation:
45 divided by 15 = 3
33 divided by 3 = 11
Deion loves to play the piano but doesn't like practicing the exercises his piano teacher
assigns. Deion knows the exercises will help him play better though, so he tries to motivate
himself using his favorite treat - chocolate chip cookies.
There is a proportional relationship between the amount of time (in hours) that Deion
practices the piano, x, and how many cookies he gives himself, y.
10
o
8
7
6
Cookies
3
2.
1
2
3
4
8
9
10
5 6 7
Hours
What is the constant of proportionality? Write your answer as a whole number or decimal.
cookies per hour
What is the slope of the line that passes through the points (-8, 4) and (4,4)?
I NEEED HELP!!!!!
find the equation of the line containing (5, -2) and has a slope of -1
A: y= -x + 9
B: y= -x - 3
C: y= -x + 6
D: y= -x + 3
Answer:
y= -x + 6 :) hope this helped you
-6 + 2x = -10
please solve and show work if possible!
Answer:
2
−
6
=
−
1
0
Step-by-step explanation:
Answer: −6+2x=−10
Step 1: Simplify both sides of the equation.
2x−6=−10
Step 2: Add 6 to both sides.
2x−6+6=−10+6
2x=−4
Step 3: Divide both sides by 2.
2x
2=−4
2
x=−2
Answer:
x=−2
Step-by-step explanation:
A laptop computer uses approximately 8.4 x 10(-3) kilowatt-hours of energy in 3.5x10(-1) hours. How many kilowatt-hours of energy does the laptop use per hour?
PLEASEEE, I NEED THIS REALLY BAD
the things in parentheses are exponents
Answer:
A laptop uses between 50 and 100 W/hour when it is being used, depending on the model. A laptop that is on for eight hours a day uses between 150 and 300 kWh and emits between 44 and 88 kg of CO2 per year. In stand-by mode the power consumption of both a desktop and a laptop falls to about a third.
Step-by-step explanation:
Which polynomial can be factored using the binomial theorem?
100x2 + 70x + 49
100x2 + 210x + 49
1,000x3 – 2,100x2 + 1,470x – 343
1,000x3 – 2,800x2 + 1,960x – 343
Answer:C
Step-by-step explanation:
The polynomial can be factored using the binomial theorem is
1,000x³ – 2,100x² + 1,470x – 343.
What is Binomial Theorem?Assertion that the sum of the nth power of the product of two positive integers a and b may be written as the sum of the n + 1 terms of the form for any positive integer n.
If a and b are real numbers and n is a positive integer, then
[tex](a + b)^n =^nC_0 a_n + ^nC_1 a_{n-1} b_1 + ^nC_2 a_{n-2} b_2 + ... 1.[/tex]
Given:
Using Binomial we can write
(a+ b)³ = a³ + b³ + 3a²b + 3ab²
and, (a+ b)² = a² + 2ab + b²
So, 100x²+ 70x + 49 and 100x² + 210x + 49 cannot be factors using Binomial Theorem because the correct expansion would be
(10x+ 7)² = 100x² + 140x + 49
and, 1,000x³ – 2,100x² + 1,470x – 343 can be factored using Binomial theorem.
As, (10x - 7)³ = 1000x³ -2100x² + 1470x - 343.
Learn more about Binomial theorem here:
https://brainly.com/question/27813780
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A computer programmer had two files. The first was 49.71 gigabyes and the second was 44.5
gigabytes. What is the total file size of both?
Answer:
94.21 gigabytes
Step-by-step explanation:
add 49.71 to 44.5 to get 94.21
A 9 by 4 centimeter rectangle expands in such a way that the 9–centimeter side is expanding at the rate of 5 centimeters per second and the proportions of the rectangle remain constant. At what rate is the area of the rectangle increasing when its dimensions are 36 by 16 centimeters?
A.
120 cm2/s
B.
140 cm2/s
C.
160 cm2/s
D.
180 cm2/s
Answer:
160 cm^2/s
Step-by-step explanation:
Just took the test.
Answer:
160cm^2
Step-by-step explanation:
answer from plato
HELP I ONLY GOT 3 MINUTES!!!!!!!!!!!!!!
Answer: 4
Step-by-step explanation:
An equation for the line whose slope is 4 and which passes thorough the point (-5,3)
Answer:
y = 4x + 23
Step-by-step explanation:
[tex]y-y_{1}=m(x-x_{1} )\\y-3=4(x-(-5))\\y-3=4(x+5)\\y-3=4x+20\\y=4x+23[/tex]
The equation of the line is required.
The equation of the line is [tex]y=4x+23[/tex]
Equation of line[tex]m[/tex] = Slope of line = 4
Point = [tex](-5,3)[/tex]
[tex]x_1=-5[/tex]
[tex]y_1=3[/tex]
Equation of a line is given by
[tex]y-y_1=m(x-x_1)\\\Rightarrow y-3=4(x-(-5))\\\Rightarrow y-3=4x+20\\\Rightarrow y=4x+20+3\\\Rightarrow y=4x+23[/tex]
Learn more about equation of line:
https://brainly.com/question/13763238
Which of the following numbers is closest to 12? O A. V145 B. 7147 C. V 142 D. V 146 . V
Answer: C
Step-by-step explanation:
Answer:
145
Step-by-step explanation:
12x12=144 and the closest number to 144 is 145
milan made $135 for $9 hours of work. at the same rate how many hours would he have to make $195?
PLSS SOMEONE HELP ME W/ THIS