will give brainly to answer this correctly
Answer:
D) 2x² + x - 10
Step-by-step explanation:
First, distribute the negative sign to all terms within the second parenthesis:
- (4x - x² + 6) = -4x + x² - 6
Next, combine like terms:
5x + x² - 4 - 4x + x² - 6
(x² + x²) + (5x - 4x) + (-4 - 6)
2x² + x - 10
2x² + x - 10 , or D) is your answer.
Answer:
2x^2+x-10 (the pink/red one)
Step-by-step explanation:
(5x+x^2-4)-(4x-x^2+6)
5x+x^2-4-4x+x^2-6
2x^2+x-10
I got it wrong i need it help
Answer:
25
Step-by-step explanation:
Given,
Measurement of <1 = x + 10
Measurement of <2 = 4x + 5
Also, said in the question that both these angles are complementary.
Therefore, by the problem,
<1 + <2 = 90°
=> x + 10 + 4x + 5 = 90
=> x + 4x + 10 + 5 = 90
=> 5x + 15 = 90
=> 5x = 90 - 15 = 75
[tex] = > x = \frac{75}{5} [/tex]
=> x = 15
Now, we have got the value of x so,
Measurement of <1 is
<1 = x + 10 = 15 + 10 = 25 (Ans)
The diagram shows two right-angled triangles. Calculate the value of x.
The value of x in the given diagram is 7cm.
What is tangent of an angle?The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
According to the given question.
We have a diagram in which we have two right angled triangles.
Now, in the upper right angled triangle
[tex]tan50 = \frac{0pposite side}{5}[/tex]
⇒ 1.19 = 0pposite side/ 5
⇒ opposite side = 1.19 × 5
⇒ opposite side = 1.2 × 5
⇒ opposite side = 6cm
Now, the opposite side w.r.t angle 50 degrees in the upper right angle triangle is a adjacent side w.r.t to angle 38 degrees in the lower right angle triangle.
So, in the lower right angle triangle.
[tex]tan38 = \frac{x}{adjacent side}[/tex]
⇒[tex]0.78 = \frac{x}{6}[/tex]
⇒ x = 0.78 × 6
⇒ x = 4.68
⇒ x = 7cm
Hence, the value of x in the given diagram is 7cm.
Find out more information about tangent of an angle here:
https://brainly.com/question/14022348
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Please answer this correctly I’ll mark you brainlist! :)
Answer:
53
Step-by-step explanation:
[tex]8 - \frac{m}{n} + {p}^{2} \\ \\ (plug \: m = 8, \: \: n = 2, \: \: p = 7) \\ \\ = 8 - \frac{8}{2} + {7}^{2} \\ \\ = 8 - 4 + 49 \\ \\ = 4 + 49 \\ \\ = 53[/tex]
Answer:53
Step-by-step explanation:
substitute the letters for the numbers then use pemdas
What is the slope of the linear equation y = -7x + 7?
Answer:
-7
Step-by-step explanation:
y = mx + b is slope-intercept form and m is the slope. In this case m = -7 so the slope is -7.
who likes one direction and what 92 times 104
Step-by-step explanation:
it's 9,776 the answer the problem is 9,776
125% of e is 30. What is e? e =
35% of f is 14. What is f? f =
Answer:
If 125% of e is 30, then 25% of e is 6. So then 100% of e would be 24
If 35% of f is 14, then 5% of f is 2. So then 100% of f would be 40
Answer:
Step-by-step explanation:
125% = 125/100 = 5/4
5/4 is 30, so 4/4 is 24. to check: multiply 5/4 and 24 together, you will get 30.
for the second: 28 would be 70% or 7/10
28 divided by 7 is four so every ten percent would be 4. 4 times 10 would get you forty. 35 percent of fourty it equals 14.
THE FIRST ANSWER IS 24 THE SECOND IS 40
a truck travels 1/8 mile in 2/3 minute. what is the speed of the truck?
Answer:
fgfthvjjuuytrf46477777
y is inversely proportional to x.when y=7 x=9 a) work out an equation connecting y and x b) work out the value of y when x=21
Answer:
a) y = k/x
7 = k/9
b) y = 3
Step-by-step explanation:
From the question, we are told that:
y is inversely proportional to x.
Mathematically:
y ∝ 1/x
y = k × 1/x
y = k/x
k = Constant of Proportionality
a) work out an equation connecting y and x
To find this Equation,
y = k/x
when y=7 x=9
Hence:
7 = k/9
b) work out the value of y when x=21
We find the value of k first
7 = k/9
k = 7 × 9
k = 63
Hence, the value of y when x=21
y = k/x
k = 63, x = 21
y = 63/21
y = 3
1. Good recordkeeping requires that you keep an accurate record of how you spend your money.
Answer:
True
Step-by-step explanation:
Hey, I've attempted this question a thousand times and keep on getting it wrong :( please help. Thank you
2hour because raymond is useles
Step-by-step explanation:
Answer:
72 minutes or 1 hour and 12 minutes
Step-by-step explanation:
in one hour Raymond would have done 1/3 of a job
in one hour Robert would have done 1/2 of a job
so in one hour together, they would have done 1/2+1/3 = 5/6 of a job
5/6 job = 1 hr
1/6 job = 12 mins
6/6 job = 72 minutes
Is it possible to slow light to almost zero miles/second? What machine would benefit from slowing light's
speed?
Answer:
light, which normally travels the 240,000 miles from the Moon to Earth in less than two seconds, has been slowed to the speed of a minivan in rush-hour traffic — 38 miles an hour.
An entirely new state of matter, first observed four years ago, has made this possible. When atoms become packed super-closely together at super-low temperatures and super-high vacuum, they lose their identity as individual particles and act like a single super-
atom with characteristics similar to a laser.
Step-by-step explanation:
Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm. Which of these is closest to the percent error for Diego's measurement? WITH EXPLANATION please and thank you :)
Answer:
4.34%
Step-by-step explanation:
Given that,
The measured length of a pen = 22 cm
Actual length of the pen = 23 cm
We need to find the percent error for Diego's measurement. It can be calculated as follows :
[tex]\%=\dfrac{23-22}{23}\times 100\\\\=4.34\%[/tex]
So, the required percentage is 4.34%.
Solve for n. 24 = 3(n -5)
Answer:
n=13
Step-by-step explanation:
24=3(n-5)
24=3n-15
-3n=-24-15
-3n=-39
n=13
April worked 1 1/2 times as long on her math project as Carl. For how many hours did April work on her math project?
PLEASE ANSWER ASAP!!!
Answer: 7 7/8 hours long
Step-by-step explanation:
April worked 1 1/2 times as long as Carl did. 1 1/2 can be rewritten as 3/2. Number of Hours April worked on math project 3/2 times the Number of Hours Carl worked on Math project. Which Carl worked 5 1/4 hours long, which can be rewritten as 21/4
-4x + y = -20 -2x - 2y = 10
X=
Y=
Answer: (x, y) = (-5, -10)
Step-by-step explanation: too lazy
plzz help need help need help
These polygons are similar. Find the missing side length.
Can you guys help?
Answer:
Step-by-step explanation:
Since they are similar we can say
?/15=6/3
?=15(6)/3
?=30
please help i have no idea what im doing!
Answer:
x represents hours of babysitting
y represents hours of music lesson
hours on babysitting: 11
hours on music lessons: 7
Step-by-step explanation:
x+y=18
5x+12y=139
-5(x+y=18)
=-5x-5y=-90
(5x+12y=139) + (-5x-5y=-90)
7y=49
y=7
x+7=18
x=11
The other one was cut this is the ful picture
Answer:H?????
Step-by-step explanation:
What is the probability that a student who plays an instrument is in band?
A. 20/25
B. 5/25
C. 5/30
D. 5/50
On a scale drawing, a bookshelf is 8 inches tall. The scale factor is 1/8 What is the height of the bookshelf?
Answer:
8 inches = 1/8 of the real height of the book shelf
Multiply 8 by 8 because the question shows 1/8 of the book shelf
8x8=64
The book shelf is 64 inches.
or 5 feet and 4 inches.
Answer:
it would b 64 in. or 5 ft. 4 inches
Step-by-step explanation:
8x8 = 64
Which number sentence is true?
Answer:
B
Step-by-step explanation:
Help fast please ASAP
Answer:
a rotation of 180° about point (0.5, -0.5) followed by a dilation of 0.5
Step-by-step explanation:
Find the midpoint of line CD given C(7, 5) and D(-3, -1)
123,456,789x123,456,789=
Answer:
123,456,789x123,456,789= (123,456,789)^2= 152415788*10^16
can i have brainliest please
Help solve!!! Need an answer very very soon!!!
Answer:
30 degrees
Step-by-step explanation:
sin(30 degrees) = 9/18 = 1/2
law...
The ratio of the two numbers is 3:4 and their sum is 420. Find the two numbers
Answer:
0.008
Step-by-step explanation:
because you have to divide it
Hans earns 54 dollars per week working part-time at a book store. He makes one dollar more for each book that he sells. The amount, A (in dollars), that Hans earns in a week if he sells b books is given by the following.
=A+54b
How much does Hans earn in a week if he sells 25 books?
dollars
Answer:
54 + 25 = $79
Step-by-step explanation:
I think??
Answer:
If you add 54 and 25 together you will get $79
Step-by-step explanation:
because 4+5= 9 and 5+2=7 so 79.
(3 x 103)(7 x 106)
a
2.1 x 1010
b
2.1 x 109
c
2 x 1010
d
21 x 109
Answer:
b
Step-by-step explanation: