Simplify the following expression: 5x + 8 + 7x − 8x − 4 (1 point)
7x2 + 13x + 4
7x2 − 3x + 12
7x2 − 3x + 4
7x2 + 13x + 12
Answer:
10x2 − 13x + 6
Step-by-step explanation:
hope that help .
Let's simplify step-by-step.
5x+8+7x2−8x−4
=5x+8+7x2+−8x+−4
Combine Like Terms:
=5x+8+7x2+−8x+−4
=(7x2)+(5x+−8x)+(8+−4)
=7x2+−3x+4
Answer:
=7x2−3x+4 hence, C
From the observation deck of a skyscraper, Harper measures a 45^{\circ} ∘ angle of depression to a ship in the harbor below. If the observation deck is 1145 feet high, what is the horizontal distance from the base of the skyscraper out to the ship? Round your answer to the nearest tenth of a foot if necessary.
The horizontal distance between the base of the skyscraper to the ship is 1145 feet.
Data;
Angle = 45 degreeObservation deck (adjacent) = 1145 fthorizontal distance (opposite) = xTrigonometric RatiosUsing trigonometric ratios, we have the value of adjacent and angle, we can easily use tangent of the angle to find the horizontal distance
[tex]tan\theta = \frac{opposite}{adjacent}[/tex]
Substitute the values into the equation and solve
[tex]tan45 = \frac{x}{1145}\\ x = 1145tan45\\x = 1145ft[/tex]
The horizontal distance between the base of the skyscraper to the ship is 1145 feet.
Learn more on trigonometric ratio here;
https://brainly.com/question/4326804
What is the answer for y and x
Answer:
x=128°
y=52°
Step-by-step explanation:
explanation is in the image above
If a pentagon has a radius of 16 find the perimeter
Answer:
94.05 units is the perimeter of this pentagon.
Length of each side in pentagon: 2r × Sin(180/n)
where r is radius and n is number of sides
Using the formula: 2r × Sin(180/n)
: 2*16 * sin(180/5)
: 18.8 units
Perimeter = 5(18.8) units........5 as we know pentagon has 5 sides
= 94.05 units
Factor. 9x^2+42xy+49y^2
Enter your answer in the box
[tex]\qquad \qquad\huge \underline{\boxed{\sf ᴀɴsweʀ}}[/tex]
The factorized form of the given equation is ~
[tex] \boxed{ \sf(3x + 7y) {}^{2} }[/tex]
Let's solve ~
[tex]\qquad \sf \dashrightarrow \: 9 {x}^{2} + 42xy + 49 {y}^{2} [/tex]
[tex]\qquad \sf \dashrightarrow \: (3x) {}^{2} + 2(3x \times 7y) + (7y) {}^{2} [/tex]
Now, as we can see, an Identity is applied here ~
that is ;
[tex]\qquad \sf \dashrightarrow \: {a}^{2} + 2ab + {b }^{2} = (a + b) {}^{2} [/tex]
So, let's use this identity in our next step, taking :
a = 3x b = 7y[tex]\qquad \sf \dashrightarrow \: (3x + 7y) {}^{2} [/tex]
6 = 2p + 8 please i will give brainliest
Answer:
p= -1
Step-by-step explanation:
subtract 8 both sides,
divide both side by 2
Solve the following:
4x-1 =x+7
——-
2
can someone explain how to solve the equation 4k + 6 = –9 + 9k
Answer:
3
Step-by-step explanation:
4k+6=-9+9k
4k-9k+6=-9
-5k+6=-9
-5k=-9-6
-5k=-15
5k=15
k=15/5
k=3
A diamond ring was reduced from $999.99 to $299.99. Find the percent decrease in the price. Round the answer to the nearest tenth of a percent.
Step-by-step explanation:
999.99 × x% = 299.99
999.99÷100 × x = 299.99
9.9999 × x = 299.99
9.9999x = 299.99
D.B.S by 9.9999 to make x the subject
9.9999x÷9.9999 = 299.99÷9.9999
x=29.999299993
To the nearest tenth of a percent, x=30
Therefore, x = 30%
Can a function be differentiable but not continuous.
Answer:
We see that if a function is differentiable at a point, then it must be continuous at that point. There are connections between continuity and differentiability. If is not continuous at , then is not differentiable at . Thus from the theorem above, we see that all differentiable functions on are continuous on
Step-by-step explanation:
please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
4 packages
Step-by-step explanation:
450 can be divided by 100 4 whole times, the extra cards cannot be added into a package
Answer: 4
Step-by-step explanation:
100 can go into 450 only 4 times
Hope this helped
-pls answer all thanks!!! HAVE A BLESS DAY
Answer:
3 ,1, 3
Step-by-step explanation:
6. The distance from Tory's home to the mall is 14 km. The distance from her home
to the bus station is 8 km. If the three distances form a triangle, what is the range
of distances from the school mall to the bus station?
Answer: 6 km to 22 km !
Step-by-step explanation:
the distances from the school mall to bus station could be, in the worst case, 14+8=22 km apart, and in the best case 14-8=6 km apart
so the range is 6 km to 22 km !
a super slim diet claims to help you lose 6lb in two weeks. the slim off diet claims to help you lose 3.5kg a week which diet claims the largest loss?
Answer:
The slim-off diet claims the largest loss.
Step-by-step explanation:
The slim off claims to lose 3.5kg(7.7 pounds) in a week,
whereas super slim claims to lose 6 pounds in 2 weeks.
Answer:
3.5 kg
Step-by-step explanation:
if you convert 6 Ib and 3.5 kg to grams you get
6 Ib = 2721.6 grams
3.5 kg = 3500 grams
Since 3.5 kg has more grams lost from the diet.
what is this helppp 1/2 + 1/5
Answer:
[tex] \frac{1}{2} + \frac{1}{5} \\ \\ = \frac{5 + 2}{10} \\ \\ = \frac{7}{10} [/tex]
Answer:
0.7 or 7/10
Step-by-step explanation:
1/2 is 0.5 and 1/5 is 0.2 which is 0.7 when added together or 7/10
Match the parts of an informational text with their definitions.
PLS ANSWER!!!
Answer:
1 e
2 c
3 d
4 a
5 b
Step-by-step explanation:
Hope this help
Find the solution to the system.
Answer:
(-3,1)
Step-by-step explanation:
Evelyn bought snacks for her team's practice. She bought a bag of chips for $2.99 and a 20-pack of juice bottles. The total cost before tax was $36.39. Write and solve an equation which can be used to determine jj, how much each bottle of juice costs.
Answer:
1.67 each bottle Because if u do 36.39-2.99= 33.40divided by 20 =1.67 each bottle
Step-by-step explanation:
61.7 is what percent of 64? Round to the nearest thousandth.
Answer:
96.406%
Step-by-step explanation:
(61.7 ÷ 64) x 100 = 96.40625 = 96.406% (nearest hundredth)
PLEASE HELP ASAP!!! will mark brainlest!! find the area.
Answer:
52
Step-by-step explanation:
Four times a number,added to 9 ,is 41.find the number
Answer:
8
Step-by-step explanation:
41-9=32
32/4=8
solve pls brainliest
I need help I do not understand this
Step-by-step explanation:
the slope of a line is its inclination and is expressed as ratio of "y coordinate change / x coordinate change" when going from one point to another on the line.
now, I see 2 "good" points on the chart (I mean by that points with integer coordinates) :
(0, 10)
(20, 100)
so, between these 2 points
x changes by +20 (from 0 to 20).
y changes by +90 (from 10 to 100).
so, the slope is +90/+20 = 9/2
Please help!!! Again can someone explain to me like I'm a child I'm kinda slow :)
Answer:
información ℹ ♂️ ️ ℹ ♀️ ️ ℹ ♀️ ️ ℹ ♂️ ️ ℹ ♂️ ️ ℹ que no me lo esperaba en
GUYssss what is 1/2 x 4/50s
help pleaseeeeee????
Hey hey!
To figure out the congruence you have to look at the lines and ticks on both triangles.
So when it gives you one letter you know it's asking for an angle.
And when it gives you two letters you know it's a segment.
When it gives you three letters you're looking for an angle.
A)
<A = <X
<B = <Z
<C = <Y
B)
AB = XZ
AC = XY
BC = ZY
C)
This one is a little tricky, so when it gives you a three-letter angle you have to look at the 'samwitched' letter, which in this case would be A.
To answer this first you have to figure out what angle corresponds to A which would be X.
And then to answer you could say either YXZ or ZXY as long as the X is in the middle it's okay.
I hope this helps a bit :)
Please feel free to comment with any questions!!
how do you solve x-3y=7
4x+2y=14
PLSSS HELP THIS IS HARD ANYONE
Answer:
Step-by-step explanation:
Please help !!!!!!!!!!
Answer:
Whole number is 16
Step-by-step explanation:
Whole number are 0,1,2,3,........
Answer:
16!
-8 is the absence of number
0.23 isn't a full number neither is 4/5 and 2.54
Solve the inequality x - 4 < -3. Then graph the solution set. Show your work.
Answer:
x < 1
Step-by-step explanation:
x - 4 < - 3
+ 4 +4 Do inverse operations by adding 4 on both sides
x < 1
Therefore, the answer is x < 1.
(It isn't allowing me to attach a photo but I am just going to try make a visual of the graph below)
<------------------------------o------------------>
-4 -3 -2 -1 0 1 2 3 4
The circle is open because based on the concept that in inequalities, less/greater than and/or equal to (such as these ≥ ≤ ) signs are graphed with closed circles, while less/greater than (like these > <) signs are graphed with open circles. The direction of the arrow is moving to the left on the number line because all possible values for x would be less than 1. When graphing the inequality you would use a solid line rather than a dashed line (I had to improvise since I could not attach an image).
