10z − 7z = 3
The answer is Z = 1
Answer:
z = 1
Step-by-step explanation:
10z - 7z = 3
collect like terms (10z and 7z)
10z-7z=3z
3z =3
divide for both sides
z = 1
not good at maths
(also I'd appreciate if nobody else commented on my questions complaining about my profile picture)
solve for x = -1
write answer as a decimal or whole number
25.6x to the second power
Answer:
-25.6
Step-by-step explanation:
any number times 1 is will be a positive or negative based on the sign.
Bryan started to evaluate a decimal expression.
2.5(42 ÷ 3.2 – 10(0.2) + 3)– 5.2
2.5(16 ÷ 3.2 – 10(0.2) + 3) – 5.2
What will be the next step?
Answer:
division of 16 by 3.2
Step-by-step explanation:
2.5(4^2 ÷ 3.2 – 10(0.2) + 3)– 5.2
2.5(16 ÷ 3.2 – 10(0.2) + 3) – 5.2
Next, he will perform multiplication and division inside parentheses, left to right.
2.5(5 – 10(0.2) + 3) – 5.2 . . . . . Bryan's next step
2.5(5 – 2 + 3) – 5.2
Then, he will finish evaluating inside parentheses by performing addition and subtraction left to right.
2.5(3 + 3) – 5.2
2.5(6) – 5.2
With parentheses evaluated, now we do multiplication and division, left to right.
15 – 5.2
Finally, addition and subtraction left to right.
9.8
PLZ HURRY!!!
1. Curtis was curious about the average height of the different types of plants in his flower and vegetable gardens, so he measured each of his plants. This data set shows the heights of the flowers in his garden, in inches. This data set shows the heights of the vegetable plants in his garden, in inches:
(a) What is the mean absolute deviation (MAD) of the flower height data? Show your work.
(b) What is the mean absolute deviation (MAD) of the vegetable height data? Show your work.
(c) Use the data to compare the two gardens. What does the MAD indicate about the variability between flower and vegetable plant heights
Answer:
Step-by-step explanation:
For part a, take all the data ( in your case line up the flower's height in inches) and find the mean. To do this you add all of the numbers together and divide by the number of numbers (EXA: 13,4,12,7---> 13+4+12+7= 36---> 36/4=9; 9 is the mean)
For part b, do the same thing, except use the values for the vegitable heights.
For part c, it's asking you to compare the values, (find their differences) and figure out the variability, which means to find the pattern in growth between both the flowers and vegitables, and explian them.
I hope this helps! :)
Shawn won an $18 gift card to a local Mexican restaurant. He must spend more than the value of the gift card when he redeems it. Burritos cost $6 each, and tacos cost $2 each. Use the 5 steps process above to solve this inequality.
Answer:
6x+2y>18
Step-by-step explanation:
Make Sense and Persevere: While playing a board game, Cecilia had to move back 6 spaces 9 times. What integer represents Cecilia’s movement on the board for those 9 turns?
For every 5$ that Micah has ,his parents gave him $10 .what is the constant of proportion ality ?????
Can someone help with number 8 please
which things are functions and which aren't
Answer:
Vertical lines are not functions.(not functions )
Function with no arguments and no return value.
Function with no arguments and a return value.
Function with arguments and no return value.
Function with arguments and a return value.
Step-by-step explanation:
The equations y = ± x and x 2 + y 2 = 9 are examples of non-functions because there is at least one -value with two or more -values. The vertical line test is a great way to visualize a violation of the definition of a function.
Answer: the curved one is not a function because it is curved.
Step-by-step explanation:
Alexandra kept track of her salary for 15 weeks and created the histogram below.
What does the gap from 21–30 tell Alexandra about her weekly salary?
She did not work that week.
Her salary was between 21 and 30 dollars.
None of her paychecks were between 21 and 30 dollars.
She only had 14 paychecks.
Answer:
C.None of her paychecks were between 21 and 30 dollars
Step-by-step explanation:
Answer:
it will be c hope im right
Step-by-step explanation:
Starting at sea level, a kingfisher flew to an elevation of 3714 feet. Spotting a fish below, the bird descended 4156 feet and caught the fish.What was the elevation of the fish?
Answer:
-442 feet
Step-by-step explanation:
3714 -4156 = -442
The elevation of the fish was -442 feet, using the given numbers.
_____
Unfortunately, the bird died of the bends while surfacing from that depth.
Answer:
Step-by-step explanation:
a) 37.25 - 251/6
b) -27.5/6 feet, that is below sea level
pls help due very soon
Answer:
A
Step-by-step explanation:
20x 3 the 3 is near the ten just couldn't find anything to fit it 10
Answer:
20*3=60
Step-by-step explanation:
I THINK?
im confused
Answer
20,000
Step-by-step explanation:
NEED HELP PLEASE
Use the distributive property to rewrite each expression. Then simplify. (5 + n)3
GIVING BRAINLIEST how many angles does a triangle have
Answer:
The sum of the measure of the angles always equals 180 degrees.
Step-by-step explanation: 3 angles
Answer:
3
step by step instructions:
A Trying go Hey 3 angle when IH birthday bounded by a pair of adjacent sides.
Multiplying and Dividing exponents.
PLZZZ HELP WILL GIVE BRANLIEST IF YOU CAN FIGURE OUT CORRECTLY you dont have to do number 2
Answer:
A:
[tex]5^3*5^{-4}=5^{3-4}=5^{-1}=\frac{1}{5}[/tex] (It is a value between 0 and 1.)
B:
[tex]\frac{3^5}{3^{-6}}=3^{5-\left(-6\right)}=3^{5+6}=3^{11}=177147[/tex] (It is not a value between 0 and 1.)
C:
[tex]\left(\frac{1}{4}\right)^3\cdot \left(\frac{1}{4}\right)^2=\left(\frac{1}{4}\right)^{3+2}=\left(\frac{1}{4}\right)^5=\frac{1^5}{4^5}=\frac{1}{1024}[/tex] (It is a value between 0 and 1.)
D:
[tex]\frac{\left(-7\right)^5}{\left(-7\right)^7}=\left(-7\right)^{5-7}=\left(-7\right)^{-2}=\frac{1}{\left(-7\right)^2}=\frac{1}{49}[/tex] (It is a value between 0 and 1.)
Need answer in a few mins pls help f(x)=2 function: f(x)=3-√x x=?
Answer:
1=x
Step-by-step explanation:
The equation would be 2=3-√x *x
subtract 3 from both sides
-1=-√x *x
multiply x*x
-1=-√x^2
the square and the square root cancel each other out
-1=-x
1=x
Now to check the answer works.
2=3-√1*1
2=3-√1
2=3-1
2=2
someone help me with this ^-^
Please explain how to do this and show work
Len's recipe for blueberry muffins calls for 110.25 grams of brown sugar for the muffin batter and an additional 55.45 grams of brown sugar for the topping. Len wants to make 4.5 batches of muffins. Enter the total amount of brown sugar that Len will nee4
Answer:
Step-by-step explanation:
heres how to work out your problem
add 110.25 and 55.45
you would get 165.70
multiply 165.70 by 4.5
then you would get 745.65
745.65 is your answer =)
Answer:
359.775
Step-by-step explanation:
110.25 + 55.45 = 165.65 x 4.5 = 359.775
'^'
Point E is located at coordinates (-7,-5). point F is located at coordinates (-2,7). What is the length of EF?
A. 17 units
B. 13 units
C. 15 units
D. 21 units
Anya makes withdrawals from and deposits into her bank account. A. What integer represents the change in the amount in her account Anya withdraws $12 once each day for four days? B. What integer represents the change in the amount in her account of Any deposits $12 once each day for four days? C. Look for Relationships Explain the difference between the integer for the withdrawals and the integer for the deposits.
Brianna purchases a pair of shoes for $25.65 and a T-shirt for $11.50. She has a coupon for $3.75 off. What is the total cost of her purchase including the coupon?
1.42118863049 rounded to the nearest cent cant figure it out plz help ty :)
Answer:
1.4
Step-by-step explanation:
5 and above bump him up
4 and below, let him go
-
2 is below 4, so we dont round up. therefore it stays as 1.4 :))
You only friend buys two fruit smoothies and leave a tip. You split the total in your half comes to $3.60. What percent tip in decimal form did you and your friend leave if the fruit smoothie cost $3 each.
Answer:
they left 20 % of the bill as a tip
Step-by-step explanation:
The tip that you and your friend left altogether would be $1.20
Because you and your friend split the whole thing evenly.
5x2 this answer is for my brother only my next answer will be everyone's
6+4/a+b/3 when a=4 and b=3
Answer:
8
Step-by-step explanation:
A school wants to buy a chalkboard that measures 1 yard by 2 yards. The chalkboard costs $71.00 per square yard. How much will the chalkboard cost?
Answer:
142
Step-by-step explanation:
Roberto hikes 21.48 miles on one weekend. The next weekend he hikes 30 miles. How much less is the distance he hiked on the first weekend than the distance he hiked on the second weekend?
Answer:
30-21.48=8.52
due to the laws of subtraction in math,
the result of the equation we have formulated is
8.52
8.52 miles is the answer
The difference between second week hike to first weekend is 8.52 miles.
What is difference?
The difference is the operational name of subtraction in math which can be obtained by subtracting a smaller number from a greater number. The number we subtract from is called minuend. The number being subtracted is called subtrahend while the result is called ‘difference’.
Given,
Robert hiked on first weekend = 21.48
On second weekend he hiked = 30 miles
The greater value is 30 miles, achieved by him in second weekend
Therefore, 30 - 21.48 = 8.52
The difference is 8.52 miles.
To know more about difference, visit:
https://brainly.com/question/17416226
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Explain how to convert from scientific notation to standard form, then give the answer in standard form.
Answer:
To convert scientific notation to standard form you would need to move the decimal point over the number of the places that the exponent indicates. If the exponent is negative you move the decimal to the left, and if the exponent is positive you move the decimal to the right.
Step-by-step explanation:
1.456*10^3 would be scientific notation.
The exponent is a positive 3, means that you move the decimal 3 places to the right.
1456 would be the standard form.
1.456*10^-3 would be scientific notation.
The exponent is a negative 3, means that you move the decimal 3 places to the left.
0.001456 would be the standard form.
