Answer:
C. 7 * (2 * 2)
Step-by-step explanation:
Figure out the original expression to see the equivalent expression.
(7 * 2) * 2
14 * 2
28
We have to look for an expression that equals 28.
A is (7 + 2) * 2.
(7 + 2) * 2
9 * 2
18
A equals 18, so it's not equivalent to the original expression.
Now B, which is (2 * 2) + 7
(2 * 2) + 7
4 + 7
11
B equals 11, so it is also not equivalent.
Now C; that is 7 * (2 * 2)
7 * 4
28
C equals 28, so that is equivalent. Although we have found our answer, we need to make sure it's right by evaluating D. ((2 * 7) + (2 * 2))
(2 * 7) + (2 * 2)
14 + 4
18
D, like A, equals 18, so it is also incorrect.
C is the only expression that is equivalent to (7 * 2) * 2, so it is the answer.
simplify the expression
-2 - 3n =
Answer:
-3n-2
-3 -3
n=2/3
you would be dividing
it would be N=2/3
Answer:
brainliest plsssss
Step-by-step explanation:
−2−3n
= −2 + −3n
For the following, select an equivalent expression in standard form: (6n4 – 9n + 2) - (-51"+17n4 + 5).
Answer:
56/5
Step-by-step explanation:
[tex] \frac{0 \frac{4 \frac{y1 \frac{ { {. \frac{ {x}^{?} }{?} }^{2} }^{2} \times \frac{?}{?} \times \frac{?}{?} }{?} \times \frac{?}{?} \times \frac{?}{?} }{?} }{?} }{?} [/tex]
[tex] {4445xx \frac{51}{?} \times \frac{?}{?} }^{?} [/tex]
Answer: The answer is D
5n^7 - 11n^4 - 9n - 3
Step-by-step explanation:
The period is found by finding the horizontal distance between
Answer:
P and W
Step-by-step explanation:
Its eqsy just pay attention in class.
Solve for n.
6 = 2n − 2
n =
can y'all please help 10 points
Answer:
[tex] \frac{23}{24} [/tex]
Step-by-step explanation:
[tex]2a + b[/tex]
[tex]a = \frac{5}{12} \\ b = \frac{1}{8} [/tex]
Substitute a = 5/12 and b = 1/8 in the expression.
[tex]2( \frac{5}{12} ) + \frac{1}{8} \\ \frac{5}{6} + \frac{1}{8} [/tex]
Our denominator must be 24. (LCM)
[tex] \frac{5 \times 4}{6 \times 4} + \frac{1 \times 3}{8 \times 3} \\ \frac{20}{24} + \frac{3}{24} \\ \frac{23}{24} [/tex]
Write the equation of a line that is parallel to y = -x + 7
and passes through the point (-4, 1). Write your answer
in slope-intercept form, y = mx + b.
Answer:
y= -x-3
Step-by-step explanation:
A line is parallel to another line if their slope is the same. In this case the slope is -1 (-x is basically -1x). So far we have y=-x+b (We dont know what b is yet). next we can insert the coordinate back into the equation y=-x+b where 1 is the y and -4 is the x.
We get...
y= -x+b
1= -(-4)+b
1=4+b
b=-3
Our final equation is y=-x-3
Hope this helped
For Items 16-28, determine whether each function is
even, odd, or neither.
f(x) = -x + 2x + 5
f(x) = x + 8x
f(x) = -7x² + 5
f(x) = 5x + 3x? – 7x + 1
Answer:
f(x) = -x + 2x + 5
is odd since f(x) = -5
f(x) = x + 8x
is neither because f(x) = 0
f(x) = -7x² + 5
is odd since f(x) = √5/7
f(x) = 5x + 3x? – 7x + 1
is odd
35% of 15 is what number
Answer: 5.25
Step-by-step explanation: .35*15=5.25
Answer:
5.25
Step-by-step explanation:
change the percent to a decimal by moving the dot to the left two places, then multiply it by the number
0.35*15=5.25
what is 2 thirds of 19 divided by 2plus 3 multiplied by4
Answer: 18.33
Step-by-step explanation: I mean the real answer was : 18.3333333333
Choose the correct label for the solution to each system of equations from the drop-down menus.
Answer: left one is no solution and right one is infinite solutions
explanation: the left one the lines don’t touch at all which has no solution and the right one means that both lines are on top of each other
In the first graph, there are ''No solution.''
In the second graph, there are ''Infinitely solution.''
What is Number line?Number line is a horizontal line where numbers are marked at equal intervals one after another form smaller to greater.
Now,
For the first graph;
In this graph we can see that there are two parallel lines.
We know that two parallel lines never intersect.
Therefore, we never get any common coordinate for this.
Thus, This system has ''No solutions.''
For the second graph;
There is a single straight line is given.
We know that each point be the solution of this line and a line contains infinitely many pints.
Thus, it has ''infinitely many solutions.''
Hence, The first graph is shows the ''No solution'' and the second graph is shown the ''infinitely many solutions.''
Learn more about the number line visit:
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Can somebody please help (There's a screenshot)
inverse operations = x=.5
simplify = x=1/2
inverse operations = x=.5
solution = x=1/2
check:
Let x = 3/2
10×3/2-5=10
use this rule = a×b/c=ab/c
10×3/2-5=10
Simplify 10×3 to 30.
30/2-5=10
Simplify 30/2 to 15
15-5=10
Simplify 15-5=10
10=10
Checked✅
luz drives at an average speed of 60 miles per hour.
She has driven for 2 hours and has traveled a distance of 120 miles.
This situation can be represented with a linear equation written in point-slope form, where x represents the number of hours and y represents the number of miles.
Answer:
The answer is y = 60x, there is no y-intercept as she has started at zero.
Step-by-step explanation:
Hope this helps!
Answer:
i got the first one wrong(not 4)
the second is (2,120)
and the last y-120=60(x-2)
Step-by-step explanation:
State the degree and end behavior of the following polynomial f(x)=4x^3+3x^5-x^2 - 2
Answer:
Degree
Five Degree
End Behavior
When x approaches negative infinity, f(x) approaches the negative infinity as well.
When x approaches positive infinity, f(x) approaches positive infinity.
Step-by-step explanation:
[tex]y = 4 {x}^{3} + 3 {x}^{5} - {x}^{2} - 2[/tex]
A five-degree polynomial function. Rearrange the terms.
[tex]y = 3 {x}^{5} + 4 {x}^{3} - {x}^{2} - 2[/tex]
Because it is an odd-degree function, the graph increases from negative infinity and ends by increasing at positive infinity.
Graph / End Behavior
When x approaches negative infinity, f(x) approaches the negative infinity as well.
When x approaches positive infinity, f(x) approaches positive infinity.
I need help with this
Answer:
the second one, third one
Step-by-step explanation:
you can expand using the distributive property
find the measurement indicated in each parallelogram please help!
Answer:
UW = EW+UE=2×EW because, EW=UE
7x-2=2×6= 12
7x=14
x=14/7
x=2
2 is the right answer.x + 80 = 180 - (64 + 36)
x + 80 = 180 - 100
x + 80 = 80
x = 0
0 is the right answer.
hii guys help
if you can
Answer:
ill try :)
Step-by-step explanation:
(trigonometry!!) Write the ratios for sin A and cos A. If needed reduce the fractions.
Answer:
Step-by-step explanation:
sin A = [tex]\frac{35}{37}[/tex]
cos A = [tex]\frac{12}{37}[/tex]
PLEASE PLEASE HELP MEEE
Answer:
d. [tex]x=a(1-\frac{y}{b})[/tex]
Step-by-step explanation:
[tex]\frac{x}{a} + \frac{y}{b} = 1[/tex]
[tex]\frac{x}{a} = 1 - \frac{y}{b}[/tex]
[tex]x = a(1 - \frac{y}{b})[/tex] <----- This is your answer
Hope this helps!
how many degrees is the measurement of angle 1? show you work GVING BRAINLY
Answer:
m<1 = 79°
Step-by-step explanation:
12x + 19 + 22x - 9 = 180
add the numbers
34x + 10 =180
minus 10
34x = 170
divide by 34
x = 5
plug 5 into the equation of angle 1
12(5) + 19 =
79
The diagram shows an isosceles right
triangle. Follow these steps to explore the
relationship between side lengths.
m2 ABC = 45°
MZ ACB = 45°
1. Measure the length of each leg and
the hypotenuse:
AB =
units
AC =
units
BC =
units
B
C
A
III
IIIIIIIIIIIIIIIII
Answer:1. 1.0 1.0 1.4
Step-by-step explanation:
The length of the sides are given by the 45°–45°–90° triangle theorem.
Correct responses:
AB = 1AC = 1BC = √2 Methods used to find the lengthsThe 45°–45°–90° triangle theorem states that the ratio of the lengths of
the sides of triangles having interior angles of 45°, 45°, 90° is 1 : 1 : √2
The lengths of the legs of an isosceles triangle are equal.
The legs of the given isosceles right triangle are AB and AC
Therefore;
AB = AC
Taking the lengths of AB as 1 unit, we have;
AB = 1 = AC
According to Pythagorean theorem, we have;
[tex]\overline{BC}^2 = \mathbf{\overline{AB}^2 + \overline{AC}^2}[/tex]
Which gives;
[tex]\overline{BC}^2 = 1^2 + 1^2 = \mathbf{ 2}[/tex]
Therefore;
BC = √2
Therefore, by setting the length of AB = AC = 1, we have;
AB = 1AC = 1BC = √2 ≈ 1.414The above values are in the ratio 1 : 1 : √2, which corresponds with the
45°-45°-90° triangle theorem.
Learn more about Pythagorean theorem here:
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Maria is making paper flowers as decorations for the fall dance. She has made 40 flowers so far, and she is 16% finished. If she plans to finish making 70% of the total flowers needed by tonight, how many more will she need by then? Please answer soon its due 11:59 tonight!!
Answer:
the number of additional she needed is 135
Step-by-step explanation:
The computation is shown below:
GIven that
40 flowers of 16%
So for 100% it would be
= 40 ×100 ÷ 16
= 250
Now she needs to make is
= 70% - 16%
= 54%
Now the additional would be
= 250 × 54%
= 135
Hence, the number of additional she needed is 135
This is due today, please help!!! I will give brainliest.
Answer:
Step 1, all the exponents are increased by 4
Step-by-step explanation:
The first incorrect step occurred in Step 1, where all the exponents were increased by 4.
This is mathematically incorrect due to exponential rules. When distributing exponents inside parentheses, we have to multiply the existing exponents inside the parentheses by the exponent outside the parentheses.
For example, (x²)³ is not x²⁺³, but rather, x⁽²⁾⁽³⁾.
We multiply the exponents instead of adding them together.
Therefore, the correct Step 1 should multiply all the variables' exponents by 4.
Steps 2 and 3 are correct since we do add the exponents when multiplying exponents with the same base, and we do subtract exponents with the same base when dividing.
12. Is 3 a solution to the equation 3x - 5
= 4 + 2x ? Explain
I
Answer:
No
Step-by-step explanation:
3x-5= 4+2x
Or, x=4+5
x=9
answers for both boxes please
Step-by-step explanation:
4x + y = 6 => 8x + 2y = 12.
8x + 2y = 12
+ (-5x - 2y = -3)
=> 3x = 9, x = 3.
Therefore 4(3) + y = 6, 12 + y = 6, y = -6.
The solutions are x = 3 and y = -6.
A salesperson receives a 3% commission on sales. The salesperson receives $180 in commission. What is the amount of sales?
Of 140 seventh-grade students, 15% earn the Presidential Physical Fitness Award. How many students earn the award?
Answer:
The amount of sales=$6000
21 students earn the award
Step-by-step explanation:
1. amount of sales=100/3×$180
=$6000
2. 15/100×140=21
Katelyn had $132. She spent $28 buying gifts for her friends and $32 on books. Estimate how much money she has left by first rounding all numbers to the nearest ten and then subtracting.
Answer:
Pretty sure it's $70.
Step-by-step explanation:
The first thing you need to do is round to the nearest ten. To do that you see if $28 is closer to $20 or $30. And it is closer to $30. The see if $32 is closer to $30 or $40. And it's closer to $30. Then you subtract $132 minus $30 minus $30. And you get $72. If they are asking what the nearest ten is for the answer, then it would be $70.
Answer:
70
Step-by-step explanation:
What is the value of Angle 'a'?
a
47°
Answer:
133
Step-by-step explanation:
180-47=133
Answer: if the shape is a triangle, 180-47=133
if it is any other shape, 360-47=313
Step-by-step explanation:
I need help solving a practice problem
Answer:
17 i think
Step-by-step explanation:
What single decimal multiplier would you use to decrease by 6% followed by a 7% increase?
Answer:
the single decimal multiplier is 1.0058
Step-by-step explanation:
Let us have 100
Decreasing by 6% will be
100 - 0.06(100)
= 94
Increasing by 7%
= 94 + 0.07(94)
= 100.58
So
to get the single decimal multiplier,
we have 100.58/100 = 1.0058
Please hurry. I will give brainliest. :)
Answer: Am thinking it is B because am only 11 and I don't know if this is right. Hope this helps, or not...
Step-by-step explanation:
