Answer:
(-(7-9))(z)-6z= 8(-6+2)
Simplify
-(-2)(z) -6z =8(-6+2)
Multiply 8*-6 and 8*2
2z -6z= -48+16
Combine like terms
2z+-6z =-32
-4z=-32
Divide both sides by -4
z=8
Step-by-step explanation:
Lowest common multiple of 28 and 144
Answer:
Lowest Common multiple -(L.C.M) is 1008.Step-by-step explanation:
2 ¦ 28, 1442 ¦ 14, 72 ¦ 7, 362×2×7×36 = 1008(L.C.M) =1008─━─━─━─━─━─━─━─━─━─━─━─
L.C.M = Lowest Common MultiplePlease help me pleasee
Answer:
a
Step-by-step explanation:
Answer:
it would be the 2nd option
{(2,1) (1, 0) (0,1)}
Step-by-step explanation:
{y=2x
{x=-y+6
please help i have a 27 in this class please help
Answer:
x = 2
Step-by-step explanation:
y=2x so
x=-2x+6
add 2x to both sides
3x=6
divide both sides by 3
x=2
solve system by elimination
6.
2x + 5y = 14
4x + 2 y = -4
Answer:
x=−3 and y=4
Step-by-step explanation:
Multiply the first equation by -2,and multiply the second equation by 1.
−2(2x+5y=14)
1(4x+2y=−4)
Becomes:
−4x−10y=−28
4x+2y=−4
Add these equations to eliminate x:
−8y=−32
Then solve−8y=−32for y:
−8y=−32
−8y
−8
=
−32
−8
(Divide both sides by -8)
y=4
Now that we've found y let's plug it back in to solve for x.
Write down an original equation:
2x+5y=14
Substitute4foryin2x+5y=14:
2x+(5)(4)=14
2x+20=14(Simplify both sides of the equation)
2x+20+−20=14+−20(Add -20 to both sides)
2x=−6
2x
2
=
−6
2
(Divide both sides by 2)
x=−3
Nate and some friends go to the fair. Nate spends 1/2 of his money on rides. He then spends $12 on food. At the end of the day, Nate has $1 left. The equation is 1/2d-12=1. How much money did Nate bring to the fair
Answer:
i can help u if u let me know whta the equation means
Step-by-step explanation:
Answer:
25$
Step-by-step explanation:
Please help me! 7th grade science!
A girl uses 60j of energy to move a box from the floor to a shelf. How much power does she use if it takes her 3 seconds to move the box?
15watts
20watts
90watts
180watts
Answer:
The answer is 20 watts
Step-by-step explanation:
power=joules/seconds
60/3=20
how can you tell that the slope of the line through (2,2) and (-3,5) is negative without calculating
3(y+2)=30 one solution
Which detail in text number one do you better understand because of details in the text number two
A forest covers 52000 acres. A survey finds that 0.4% of the forest is old-growth trees. How many acres of old-growth trees are there?
Given:
Total forest area = 52000 acres
Area of old growth trees in the forest = 0.4%
To find:
The area of old growth trees.
Solution:
We have,
Total forest area = 52000 acres
Area of old growth trees in the forest = 0.4%
Area of old growth trees is
[tex]Area=0.4\% \text{ of total forest area}[/tex]
[tex]Area=\dfrac{0.4}{100}\times 52000[/tex]
[tex]Area=0.4\times 520[/tex]
[tex]Area=208[/tex]
Therefore, the area of old growth trees is 208 acres.
Please help me with this! I will mark as brainliest!!!
Dena, Barb, Ryan, and Joe played a game where the lowest value wins. Dena's score was 3. Barbs score was -6. Ryan's score was -4. And Joe's score was -2. A) Joe's score beat Dena's score B) Ryan's score beat Barbs score C) Joe had the worst score D) Dena won the game
Answer:
A.) Joe's score beat Dena's score
Step-by-step explanation:
When you use negative numbers (Numbers that start with a negative sign (-)), the bigger the number after the negative, the smaller the number and also a negative number is always less than a positive number. This means that Joe's score beats Dena's score, because Joe's score is negative and Dena's score is positive, so Joe's score is lesser than Dena's score.
ALGEBRA 1 ! Please help!! need asap 100 POINTS
Answer:
1. Skyler's processes are incorrect. She put (3^6)^x = 9, but when working with exponential problems, both sides have to have the same base. 3 does not equal nine, so you can automatically rule out her approach.
2. Robert's processes are correct. He set both bases equal to each other and then solved for the exponents.
3. Kaitlyn is also correct, she set the bases equal to 3 and solved for the exponents.
Step-by-step explanation:
When working with exponents, the goal is to get the bases equal to each other. In this case, you could have set it equal to 9 (which Robert did) or you could have set it equal to 3 (like Kaitlyn did). But you never want the bases to be conflicting, which is what Skyler did. Just by looking at the problem and using deductive reasoning, it is likely that Robert and Kaitlyn are both correct, since they have the same answers, although they used different methods, but it is still important to look at the steps.
Skyler's one mistake was setting 3 = 9, because that is impossible. If you plug in her answer of 3/2 into x, you get a ridiculous number of 19,683 = 9, which is not possibly true. For the others, when you plug in 1/3, you get 729^(1/3) = 9, so 9=9.
Hopefully this makes sense, if not, I can try to explain it better. Thanks much & have a wonderful day.
The explanation of whether Skyler, Robert or Kaitlyn were correct/wrong and the reason from their processes is that;
1) Skyler is wrong because she didn't make the bases of both sides to be equal before equating the exponents.
2) Robert is correct because he made the bases of both sides to be the same before equating the exponents.
3) Kaitlyn is correct because she made the bases of both sides to be the same before equating the exponents.
1) SKYLER'S PROCESS;The problem skyler wants to solve is;
729^(x) = 9
The first step is to reduce 729 to the lowest base to get; [3^(6)]^(x) = 9
Next she did was to equate 6x to 9.
When working with equality of exponents both sides ought to have the same base and so she could have converted 9 to have same base of 3 as the left hand side after which she will equate the exponents.
So skyler is wrong.
2) ROBERT'S PROCESS;We saw that skyler didn'take both bases equal to each other but now Robert has done the correct thing by having;
9^(3x) = 9¹
After which he equated the exponents to get;
3x = 1
x = 1/3
Thus; Robert is correct
3) KAITLYN'S PROCESS;Kaitlyn is also correct because she followed the same correct pattern of ensuring the bases are the same before equating their exponents.
Read more about laws of exponents at; https://brainly.com/question/11761858
Will mark BRAINLIEST !!1
1/3+5/6+3/4+1/2 =
(as a fraction)
Answer:
answer;
1/3+5/6+3/4+1/2 =29/12
Parallelograms (5x+4). 59
Answer:
59 = (5x + 4)
x = 11
Step-by-step explanation:
59 = (5x + 4)
5x + 4 = 59
5x = 59 - 4
5x = 55
x = 55/5
x = 11
please help me find point D 10 points!!
A company is billed $1,850 with a cash discount of 5% offered for payment within ten days. How much could it save?
Answer:
$92.5
Step-by-step explanation:
1,8500x.05=92.5
Answer:
1850 / 5% = 36000
Step-by-step explanation:
Find a quadratic function f(x) = ax^2 + bx + C whose
graph passes through the points (-1,3), (1,1) and (2,6).
Answer:
Step-by-step explanation:
3-1
3.5 - 1.05 please help
Answer:
The answer is 2.45
Step-by-step explanation:
I used this magic device called a calculator!
lol
can someone please explain inverse operations to me??
Answer:
The operation that reverses the effect of another operation. Example: Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7.
Step-by-step explanation:
Answer:
Inverse operations are opposite operations that undo each other. Addition and subtraction are inverse operations. Multiplication and division are inverse operations.
PLZ MARK AS BRAINLIEST
if these two shapes are similar what is the measure of the missing length r?
r = ____ kilometers
Answer:
The answer is r=20
Step-by-step explanation:
[tex] \frac{81}{45} = \frac{36}{r} \\ r = \frac{36 \times 45}{81} = 20[/tex]
Please give me the correct answer
Which equation is graphed?
can you help me with this please
Answer:
slope is 4/3 y intercept is -3
Step-by-step explanation:
there is no calculations needed
PLEASE HELP ME ITS URGENT!!! PLEASEEE IM BEGGING U
Answer:
The answer would be C.
Step-by-step explanation:
5 * 6 = 30
3(10) * 1 = 30
Hence, your answer would be C.
Answer:
c = 10
Step-by-step explanation:
−2x=x^2 minus 6,
Rewrite the equation by completing the square. please answer
Answer:
[tex](x+1)^{2} -5[/tex]
Step-by-step explanation:
[tex]-2x=x^{2} -6 \\x^{2} +2x-6\\(\frac{b}{2}) ^{2} =(\frac{2}{2}) ^{2} =1^{2} =1\\so, (x^{2} +2x+1)-6+1\\ x^{2} +2x+1=(x+1)^{2} \\-6+1=5\\(x+1)^{2} -5[/tex]
Sorry it took so long
In EFG, EG is extended through point G to point H, m< EFG (2x+1),
m
Answer:
1
Step-by-step explanation:
Answer:x+19=(6)+19=25
Step-by-step explanation:
Simplify -5(-3w - 5) - 20
The owner of a garden center pays $12 for each birdbath. She sells them for 55% more than she paid. Decide whether each expression represents the selling price for b birdbaths.Choose Yes or No for each expression.A.12b1 1. 55(12b) u Yesu Nob. 12(0 . 45b) u Yesu Noc.12b(1. 55)u Yesu Nod. 12(0 . 55b) u Yesu Noe. 12b(1 1 0.55)u Yesu No
Answer:
[tex]Selling\ Price = 12b(1.55)[/tex]
Step-by-step explanation:
Given
[tex]Cost\ Price = \$12[/tex]
[tex]Selling\ Price = 55\%\ more[/tex]
Required
Write an expression for the selling price for b birdbaths
This selling price for 1 birdbath is calculated as:
[tex]Selling\ Price = Cost\ Price + 55\% * Cost\ Price[/tex]
Substitute 12 for Cost Price
[tex]Selling\ Price = 12 + 55\% * 12[/tex]
Factorize:
[tex]Selling\ Price = 12(1 + 55\%)[/tex]
Express percentage as decimal
[tex]Selling\ Price = 12(1 + 0.55)[/tex]
[tex]Selling\ Price = 12(1.55)[/tex]
For b birdbaths, the selling price is:
[tex]Selling\ Price = 12(1.55) * b[/tex]
[tex]Selling\ Price = 12b(1.55)[/tex]
The options are not clear; However [tex]12b(1.55)[/tex] answers the question.
susie begins a new walking program with 600m on the first day. Each day she will increase her walk by 200m.how many kilometers will she walk on day 18 of her program
Answer:
4200m
Step-by-step explanation:
200 times 18 is 3600
3600 plus 600 is 4200
Mark brainliest or I'll literally drink water