Answer:
-38y - 19z - 4
Step-by-step explanation:
You meses to multiply the numbers outside the brackets with the values inside.
First you have -2(3y+2) so you multiply -2 with 3y = -6y and then you multiply the -2 with the +2 = -4. So you're left with -6y - 4 - 7z - 4(3z+8y).
Now do the same with the last one, multiply -4 by 3z = -12z, then multiply -4 with +8y = -32y. You're left with -6y-4-7z-12z-32y.
Now we change the order to make it easier and we have -32y-6y-12z-7z-4, we make the subtractions and we get -38y - 19z - 4
-1.293857291 rounded to the nearest hundredth
What is the length of a rectangle with an area 8 1/10 ft.² and a width of 2 1/4 feet
Answer:
l=4
Step-by-step explanation:
l=A
w=8
2=4
Drive for 2hrs and 15 minutes at 56 mph how far
Step-by-step explanation:
[tex]thank \: you[/tex]
Classify each number as rational or irrational and explain.
Error Occurred.. ⎯⎯⎯⎯√square root of 25 ⎯.⎯⎯ ⎯⎯√square root of 2 7,548,123
Step-by-step explanation:
√25 is 5 Rational Number.√27 is Irrational number.√548 is Irrational number.√123 is Irrational number.DF= 78, DE = 5x -9, EF = 2x + 10, find DE.
Solve for x first.
5x - 9 + 2x + 10 = 78
7x + 1 = 78
7x = 78 - 1
7x = 77/7
x = 11
Then substitute the value of x to find DE.
DE = 5x - 9
5(11) - 9
55 - 9
DE = 46
Therefore, the value of DE is 46
DF= 78, DE = 5x -9, EF = 2x + 10, find DE.
Solution:First, solve for the value of x.
DE + EF = DF(5x - 9) + (2x + 10) = 787x + 1 = 787x = 78 - 17x = 77/7x = 11Then, plug and substitute the value of x to find the DE.
DE5x - 95(11) - 955 - 946Answer:The value of DE is 46Please help me answer this question
Answer:
Step-by-step explanation:
ten students are chosen from a statistics class of 300 let x be the number who got an a in the class
Please help me! I really need it. ...You deposit 1500 every month starting today in an investment account but would withdraw 750 at the end of every 12 month period. interest is 14% compounded monthly. how much would be in the account before and after the last withdrawal?
Answer: multiply 750 and 12
Divide that by the 14%
Step-by-step explanation:
Find the cube of each number.
8
Answer:
2 cubed is 8
Step-by-step explanation:
Chow,...!
The ratio of cats to dogs at a pet store is 4:5 which means
Step-by-step explanation:
The ratio of cats to dogs at a pet store is 4:5. It means that if there are 4 cats in the store then there are 5 dogs, if there are 8 cats(4×2) there then there will be 10 dogs(5×2).
The number of cats is 16 if the ratio of cats to dogs is 4:5 if there are 20 dogs.
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
The complete question is:
The ratio of cats to dogs is 4;5 if there are 20 dogs. How many cats are there?
It is given that:
The ratio of cats to dogs at a pet store is 4:5
Let 4x be the cats and 5x be the dogs
5x = 20
The above equation is a linear equation in one variable.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
x = 20/5
x = 4
Number of cats = 4x
Plug x = 4 in the above expression:
= 4(4)
= 16
Thus, the number of cats is 16 if the ratio of cats to dogs is 4:5 if there are 20 dogs.
Learn more about the ratio here:
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Alice makes a batch of cookies for her mom's
birthday. She adds 2 cups of flour and
1 cups of sugar to a bowl. How many cups of
dry ingredients does Alice add to the bowl?
Answer:
3 cups of dry ingredients.
Step-by-step explanation:
Sugar and flour are dry ingredients.
Answer:
3
Step-by-step explanation:
um 3? because 2 cups of flour + 1 cup of sugar = 3 cups of dry ingredients
3(x+4)=7x-18 brainliest
Answer:
x=15/2
give brainliest please
Answer:
3(x+4)=7x-8
3x+12=7x-8
7x-3x=8+12
4x=20
x=20/4
x=5
Find the slope and the y-intercept of the line.
Y= -5/4x + 7
Answer:
slope = -5/4 and y-intercept= 7
Step-by-step explanation:
Select all equations that are true.
A. 63 x 103 = 63,000
O
B. 63 x 10,000 = 630,000
C. 63 x 102 = 630
O
D. 63 x 1,000 = 6,300
O
E. 63 x 105 = 6,300,000
Answer:
B. 63 x 10,000 = 630,000 is the only true equation
Step-by-step explanation:
Trial and error
Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The correct option is B.
What is multiplication?Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.
From the given equation that is true are,
A. 63 x 103 = 63,000
If we multiply 63 and 103 the product will be 6,489. Since the two sides of the equation are not true, therefore, the given equation is false.
B. 63 x 10,000 = 630,000
If we multiply 63 and 10,000 the product will be 630,000. Since the two sides of the equation are true, therefore, the given equation is true.
C. 63 x 102 = 630
If we multiply 63 and 102 the product will be 6,426. Since the two sides of the equation are not true, therefore, the given equation is false.
D. 63 x 1,000 = 6,300
If we multiply 63 and 1,000 the product will be 63,000. Since the two sides of the equation are not true, therefore, the given equation is false.
E. 63 x 105 = 6,300,000
If we multiply 63 and 105 the product will be 6,615. Since the two sides of the equation are not true, therefore, the given equation is false.
Hence, the correct option is B.
Learn more about Multiplication here:
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how many time larger is 9x10^-8 than 3x10^-12
Step-by-step explanation:
[tex] \frac{9 \times 10 {}^{ - 8} }{3 \times 10 {}^{ - 12} } [/tex]
Apply Quoteint of Powers. Divide the intergers. serpately.
Note that Quotient of Powers is
[tex] \frac{a {}^{x} }{a {}^{y} } = a {}^{x - y} [/tex]
So the answer is
[tex]3 \times 10 {}^{ - 8 + 12} = 3 \times 10 {}^{4} [/tex]
The answer is
[tex]3 \times 10 {}^{4} [/tex]
or
[tex]30000[/tex]
Answer:
30000(thirty thousand) times larger
Step-by-step explanation:
9×10⁸ is the same as 900000000
3×10-¹² is the same as 0.000000000003
(9×10⁸)÷(3×10-¹²)
9÷3=3
10⁸÷10-¹²=10⁴
3×10⁴ which is 30000
An angle measures 85.2° less than the measure of its complementary angle. What is the measure of each angle?
Answer:Complementary angles are two angles whose sum is 90 degrees.
Let x represent one of the angles.
The other angle which is 84.2 degrees less would be x - 84.2.
Using this, we can write an equation.
x + (x-84.2) = 90.
Combine like terms: 2x - 84.2 = 90
Add 84.2 to both sides of the equation.
2x = 174.2
Divide by 2: x = 87.1
and x - 84.2 would equal 2.9. to check: does 87.1 + 2.9 = 90? yes.
Step-by-step explanation: Thats as close as its gonna it i think
R(-6, 1), S(-3, -3)
Find the coordinates of the midpoint of a segment with given endpoints
Answer:
[tex]\boxed {\boxed {\sf ( - \frac{9}{2}, -1) \ or \ (-4.5, -1) }}[/tex]
Step-by-step explanation:
We are asked to find the midpoint of a line segment. When you find the midpoint, you essentially find the average of the x-coordinates and the y-coordinates. The midpoint formula is:
[tex](\frac {x_2+x_1)}{2}, \frac{y_2+y_1}{2})[/tex]
In this formula, (x₁, y₁) and (x₂, y₂) are the endpoints of the line segment. we are given the endpoints R (-6, 1) and S (-3, -3). If we match the value and the corresponding variable we see that:
x₁= -6 y₁= 1 x₂= -3 y₂= -3Substitute the values into the formula.
[tex]( \frac{-3 + -6}{2} , \frac{ 1+ -3}{2} )[/tex]
Solve the numerators.
-3 + -6 = -9 1 + -3 = -2[tex](\frac {-9}{2}, \frac {-2}{2})[/tex]
Divide.
[tex]( - \frac {9}{2}, -1})[/tex]
The fraction can also be written as a decimal.
[tex](-4.5 , -1)[/tex]
The midpoint of the line segment RS is (-9/2, -1) or (-4.5, -1).
plzzzzzzzzz helppppp
Answer:
The second and third boxes. m=-10/4 & -5/2 & the last one
Step-by-step explanation:
We know the answer is negative so we need to add a larger number to get the 3/4 to the negatives. 3-10= -7, so -10/4 and -5/2 is equal to -10/4
Answer:
The second one m= -10/4, the third one m= -5/2, and the last one -5/4+m= -15/4
Step-by-step explanation:
You find m by solving -7/4 - 3/4 = m. Thats the second option -10/4.
When you simplify, you get -5/2, the third option.
Finally, -5/4+m= -15/4 is equal to -15/4 -(-5/4)=m. Subract and you get -10/4. That makes the original equation equal to the last option.
Let x be the first factor in an expression in scientific notation describe the possible values of x
Answer:
1≤x<10, meaning x must be greater than or equal to 1 and less than 10
Step-by-step explanation:
I need the answers my today thank you pls and can you screenshot and write it for me pls
Mrs. Ellis can divide her class into groups of 3 students or 4 students. Which of the following is a possible size of her class? plz hurry and answer
Answer:
24
Step-by-step explanation:
24/3=4
24/4=3
Write the value of the following Roman numerals in the Hindu Arabic:CDXIII
Answer:
Step-by-step explanation:
413
What is the solution to this equation?
4(4x + 1) = 3x - 46 - x) + 8
Answer: Hello There!................
x=-3.5
Step-by-step explanation:
Mark me brainest please. Hope this helps. Anna ♥
Evaluate 12a for a = 4.
A. 8
B. 16
C. 48
D. 3
Evaluate -10+16/(-2)+7 and show your work
Answer:
-11
Step-by-step explanation:
[tex] - 10 + \frac{16}{( - 2)} + 7[/tex]
[tex] - 10 + 7 = - (10 - 7) = - 3[/tex]
[tex] - 3 + \frac{16}{ - 2} [/tex]
[tex] - 3 - 8 = - (3 + 8) = - 11[/tex]
[tex]\boxed{\green{= - 11}}[/tex]
HELP !!!
What is the center of the circle? A. (-2,0) B. (3,-1) C. (-3,4) D. (2,-5)
Answer:
3, -1
Step-by-step explanation:
because that is the point that is at the center :)
Which of the following is not a classification of the number
-3
A. real number
B. rational number
C. whole number
D. integer
9514 1404 393
Answer:
C. whole number
Step-by-step explanation:
The set of whole numbers is the set of non-negative integers. A negative integer is not a whole number.
On a number line what is the distance between 16 and -25
How did growers in the South attempt to rebuild their cotton market?
Produced more cotton
Raised the price of cotton
Hired more laborers
Sold their land
Can someone help me with these? Pls Answer ill mark Brainliest
Answer:
ok
Step-by-step explanation:
ok
What is S-8=9, then s =
Answer:
S-8=9
or, s= 9+8
or, S= 17
Because 8 is in - so to become it's positive sign we should bring it to right hand side
