Evaluate the expression when y=−2 and z=−5.
10y to the second power divided by z
Answer:
-8
Step-by-step explanation:
10(-2)^2 / -5
10(4) / -5
40 / -5
-8
Answer:
-80
Step-by-step explanation:
(10y^2)/z
(10*-2)^2 /-5
(-20)^2 /-5
400/-5
-80
Solve the system x+y=0 −2x−y=8 *Answer should be in ( x , y ) form, will give 40 points *
Answer:
x = -8 and y= 8
(-8,8) is the answer
Answer:
(2,4) (-4,16)
Step-by-step explanation:
Subtract 2 x from both sides of the equation.
y = 8 − 2 x
Substitute 8 − 2 x for y into x ^2 − y = 0 then solve for x .
x = 2 , − 4
Substitute 2 for x into x 2 − y = 0 then solve for y .
y=4
Substitute − 4 for x into x 2 − y = 0 then solve for y .
y=16
Equation form
x = 2 , y = 4
x = − 4 , y = 16
need help with this question. :)
just need the first one but the others could be appreciated.
Answer:i need help with same one
Step-by-step explanation:
Answer:
1. The power is being multiplied by the three on the outside of the parentheses. Both powers are being multiplied by 1.
2. 7^30
3. 54^3
4. Yes, because the communitive property you can multiply 5 and 4 and you get 20, if you reverse it 4 times 5 you still get the product of 20.
Step-by-step explanation:
I'm no 100% sure for the first on but the other are right hope this helps :)
need help ASAP with this ^-^
Answer:
10
Step-by-step explanation:
All you're doing is [tex]\frac{5}{8}[/tex] ×[tex]\frac{16}{1}[/tex] or [tex]\frac{5}{8}[/tex] ×[tex]16[/tex]
-
[tex]\frac{5}{8}[/tex] ×[tex]\frac{16}{1}[/tex]
so 5 × 16 = 80
and
8 × 1 = 8
The fraction becomes
[tex]\frac{80}{8}[/tex]
then you simplify ( in this case divide by the botton number/denominator) to get :
10
Answer:
10 I think
Step-by-step explanation:
SOORRRY ITS NOT MATHMETICSI don’t know much about this so I really need help thank you!!!
Answer:
its the first one because when its hispanic they take there last name from dad
Answer:
its the first one
Step-by-step explanation:
Bryce is making a model building. He raises the walls of the building by 2 centimeters, five times.
By how many centimeters does Bryce raise the walls altogether?
Answer:
10 cm!
I think...it's really basic math so...maybe?
Answer:
10 cm
Step-by-step explanation:
(2 cm)×5 = 10 cm
Bryce raises the walls 10 cm altogether.
__
You could add the raises, but multiplication is easier.
(2 cm) +(2 cm) +(2 cm) +(2 cm) +(2 cm) = 10 cm
12 - 3/4 (d + 16) = negative 5
Answer: d=20/3
Step By Step:
Step 1, Simplify:
12-3/4(d+16)=-5
(-3/4)d+(12-12)=-5
(-3/4)d=-5
Step 2, Multiply each side by 4/(-3)
(4/-3)*(-3/4)d=(4/-3)*-5
d=20/3
Answer:
[tex]\bold{d=\frac{20}{3} \ or \ 6.66666666667}[/tex]
Explanation:
[tex]\bold{12-\frac{3}{4}\left(d+16\right)=-5}[/tex]
[ Subtract 12 From Both Sides ]
[tex]\bold{12-\frac{3}{4}\left(d+16\right)-12=-5-12}[/tex]
[ Simplify ]
[tex]\bold{-3\left(d+16\right)=-68}[/tex]
[ Divide Both Sides By -3 ]
[tex]\bold{\frac{-3\left(d+16\right)}{-3}=\frac{-68}{-3}}[/tex]
[ Simplify ]
[tex]\bold{d+16=\frac{68}{3}}[/tex]
[ Subtract 16 From Both Sides ]
[tex]\bold{d+16-16=\frac{68}{3}-16}[/tex]
[ Simplify ]
[tex]\bold{d=\frac{20}{3}}[/tex]
Can anyone help me with this answer
Answer:
18
Step-by-step explanation:
If you take a look at it, its quite similar to the example
Since they are using the same dimensions (1.5) you multiply 1.5 x number x 1.5 again
1/8 as a reciprocal is 8
so you do 1.5 x 8 x 1.5 which gives you 18
Help please! Number 1 only. Due an hour later
Answer: Use point-slope form.
y - y1 = m(x - x1)
Step-by-step explanation:
Will give brainliest plus 50 points to whomever answers correctly. No random answers without the actual answer.....
Answer: Q1: D. Distribute 3 through the parenthesis
Step-by-step explanation:
As for the second question, I am not sure how to begin. Sorry
Answer:
For the first question: 3(p - 3) = 2p + 7, the first step would be to distribute 3 to both terms in the parentheses
For the second question:
6n + 11 = -7 + 3n
-3n -3n
3n + 11 = -7
-11 -11
3n = -18
3n/3 = -18/3
n = -6
Check:
6(-6) + 11 = -7 + 3(-6)
-36 + 11 = -7 + -18
-25 = -25, since these match n definitely equals -6
Which is the correct classification of the value 7pi?
A-Real, Rational, integer
B-Real, Rational
C-Irrational, Integer
D-Real, Irrational
Please Help Me ; ^;
Answer: Real, irrational
Step-by-step explanation:
Real because it is an actual measurement. Irrational because π can't be expressed as a fraction. Not an integer because integers are whole numbers.
The correct classification is -Real, Irrational
What is irrational number?Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.
Irrational numbers are real numbers that cannot be represented as a simple fraction. These cannot be expressed in the form of ratio, such as p/q, where p and q are integers, q≠0. It is a contradiction of rational numbers.
Given number: 7* pi
Here, 7 is the real number.
But pi is real but not rational number.
pi is an irrational number.
Hence, the correct classification of 7 pi is Real, Irrational.
Learn more about irrational number here:
https://brainly.com/question/4031928
#SPJ2
I need percentage, fraction, decimal That matches
Answer:
3/5=0.6=60%
1/8=0.125=12 1/2%
3/50=0.06=6%
7/8=0.875=87.5%
1/3=0.125=33 1/3%
Step-by-step explanation:
23 + 18 divided (8-2) +3 ANSWER FAST PLS
Answer:
Step-by-step explanation:
Use PEMDAS rule -----> Parenthesis , Exponent, Multiplication & Division and then Addition & subtraction.
23 + 18 ÷ (8 - 2) + 3 = 23 + 18 ÷ 6 + 3 {Now do division}
= 23 + 3 + 3
= 29
Determine the constant of proportionality, k, and interpret it in the context of each problem. 3) The graph shows the relationship between the weight of an object on Earth and the weight of the same object on Venus. (Hope you can see the picture well)
I am pretty sure it would be k=50 (pounds) because it goes up 50 each point goes by 50 pounds between each one. (as seen in the edited graph I made)
Answer:
it would be k=50 (pounds) because it goes up 50 each point
what is the answer to 3x-8-2x=2
Answer:
x=10
Step-by-step explanation:
1. Do the inverse and add 8 to both sides to get 3x-2x=10
2. Combine like terms 3x-2x= 1x which simplifies to x
A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park is 280 yards long. What is the area of the actual park, in square yards? 35? 200? 1,400? 56,000?
Answer:
56,000
Step-by-step explanation:
The scale drawing is a 1/40 ratio so you multiply 5 by 40 and you get 200. You do 200x280 and you get 56,000.
Can someone help with this? It is about quantitative comparisons.
Answer:
YES!!!
Step-by-step explanation:
I am usually good at those.
Let me see the problem so I can assist you!!
model each two-step operation by solving.
-2x-3=5
Answer:
x=-4
Step-by-step explanation:
You have to do all this math to isolate the variable, so, first,
You have to use the opposite sign of negative 3, which is positive 3, and add on both sides!
Then, you isolate the variable by dividing -2 on both sides, which is...
-4!
The figure below is made of two identical triangular prisms. What is the volume of the figure?
Answer:
A triangular prism is 1/2 the volume of a rectangular prism with the same dimensions.
V = BH (Base x Width) of a triangular its 1/2BH
The base is 10 x 5, 50 is the base.
The height is 6, and that would be 300 / 2 since it's triangular so its 150 inches squared for one. Since there are 2.
The total volume is 300 inches squared.
Step-by-step explanation:
THX 8th grade math anyone that can help PLZ do so. :)(:
Answer:
The answer is B
Step-by-step explanation:
Each of the x factors multiplied by 5 gives you the dollar amount at that point. You can easily make an equation for this table.
Answer:
Step-by-step explanation:
The answer is D
How i know is because i did it the other day
Tom makes $25 an hour working at the local video game store. Over the past year he has saved $150 toward a new iPhone. If the iPhone cost $300, how many hours will he need to work to be able to buy the iPhone? show work plzz
To change a negative exponent to a _______. _______ the power (the_____)
PLZ HELPPPPPP. the choices are below for the attachment. It is a function because there is a price given for every package. It is a function because weekend packages are always $50 more than weekday packages. It is not a function because each package number has two different prices. It is not a function because there are two different packages available for $180.
Answer:
it is not a function because there are two different packages available for $180.
Step-by-step explanation:
I NEED HELP NOW!!!!
Using the strategies that we have discussed in class, find
the area of the following parallelograms and then submit
your answers here.
Answer:
A - 15 square units
B - 12 square units
C- 24 square units
Step-by-step explanation:
A - The formula for the area of a parallelogram is the base*height.
3*5= 15 square units
B- Same deal as the first one 2*6 =12 square units
C- Exact same thing 4*6 = 24 square units
Answer:
I would help you but we dont know what you learned in class so i cant. If you tell me i can cause i learned that stuff last year
Step-by-step explanation:
Please help me;(
If the measure of Angle F G H is 64 degrees and the measure of Angle E G D is (4 x + 8) degrees, what is the value of x? Lines E H and D F intersect at point G. 14 18 64 116
Answer:
x = 14
Step-by-step explanation:
Angle FGH and EGD are vertical angles, so they will have the same measurement.
so basically 64 = 4x + 8
subtract the 8 = 56
divide 56 by 4
x = 14
Answer:
14 is the answer i hoped i helped
Step-by-step explanation:
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
The equation of the line in this graph is y = _ x +_
Answer:
y=-2x+3
Step-by-step explanation:
Ann works in a supermarket for $15.00 per hour. If her pay is increased to $18.00, then what is her percent increase in pay?
Answer:
previous salary of Ann=$15
Present salary of Ann=$18
The increase in salary=$18-$15
=$3
%increase in salary=increase in salary/previous salary
=($3/$15)×100%
=20%
A survey found that 12 out of every 15 people prefer eating out over cooking. If 500 people took the survey, how many people prefer eating out?
Answer:
400 people
Step-by-step explanation:
15 = 12
500 = x
Cross multiply
15x = 12 × 500
Divide both sides by 15
[tex]\frac{15x}{15}[/tex] = [tex]\frac{12 * 500}{15}[/tex] (* means multiplication if you do not know)
[tex]\frac{12 * 500}{15}[/tex] = 100 × 4= 400 people
Ralph wants to build a rectangular deck with a predefined area of 792 feet squared. One side of the deck will be 54 feet longer than the other. To find the side lengths, he first writes the equation (x)(x+54)=792 and later simplifies it to (x-12)(x+66)=0, where x is the length of the shorter side. Which of these are the side lengths, in feet, of the rectangular deck? Select all that apply. A. 42 B. 54 C. 12 D. 66 E. 120
Answer:
C.12 and D.66
Step-by-step explanation:
(12+54)(12)=792
66*12=792
The length of a basket is measured to be 13 inches, but the basket is actually 1 foot long. What is the percent error in the measurement?
A) 7.6%
B) 8.3%
C) 9.2%
D) 10.7%
Answer:
D
Step-by-step explanation: