Answer:
-7
Step-by-step explanation:
replace x by 3
-5^3+8
-15+8
=-7
what is
m(x)=4x+15; m(x)=7
Answer:
x = -2
Step-by-step explanation:
m(x) = 4x+15; m(x) = 7
7= 4x+15
7-4x=15
-4x=15-7
-4x=8 / :(-4)
x= -2
PLZ HELP MEEEEEE
Kaltin will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $75 and costs an additional $0.70 per mile driven. The second plan has no initial fee but costs $0.90 per mile driven. How many mlles would Kaltlin need to drive for the two plans to cost the same?
Answer:
x equals 375
Step-by-step explanation:
75+0.70x=0.90x
A tiger shark swims an average of 32 miles per hour. About how many hours will it take the tiger shark to swim 8 miles?
Answer:
0.25 hours, or 15 minutes
Step-by-step explanation:
Ok, so the rate is 32 miles per hour, so it would take about 1/4 of a hour to go 8 miles (8/32= 0.25)
WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER + 100 POINTS WHEN YOU DO ANSWER!!
Hello, below I have a screenshot of the question I need to be answered in particular. I would also like to have an explanation as to how you got the answers you did please. I will move on to try other questions whilst I wait, to see if I may be able to do something different without getting stuck again. Thank you for your time and I hope you have/had a good day(or night)!
y=-2x(squared)+3x-7
the 2x is squared
hope that helped
help please, please anybody
Answer:
the answer is the third one 3
Please answer the question for brainliest!
Answer:
x = 14
Step-by-step explanation:
10x-30+5x = 180
Combine like terms
* 15x-30 = 180
Add 30 from both sides
* 15x 30+-30 = 180+30
Divide 15 both sides
* 15x/15x = 210/15x
x = 14
Hope this helps :)
help fast pleaseee
NO RANDOMS
Answer:
a)-30
b)-60
c)98
d)-54
Step-by-step explanation:
320/-4
-180/3
-14X-7
6X-9
I really need help for this I need explanations of this please I need to submit right now please help
How much will you pay in all for the $78 lunch bill with a 15% tip ?
→ You will pay $ 89.7.
The tip value is based on the bill value. Hence, to find the total payment you have to multiply 78 by 1.15 (this includes the tip, 1.15).
[tex]\Large \text {$Total = 78 \times 1.15 = 89.7 $}[/tex]
Or you can first find how many 15% is from $78:
[tex]\Large \text {$0.15 \times 78 = 11.7$}[/tex]
And then add this to $78:
[tex]\Large \text {$78 +11.7 = 89.7$}[/tex]
→ See more on:
https://brainly.com/question/12901165
Answer:
$89.70
Step-by-step explanation:
15/100=0.15
78 * 0.15 =89.70
(1/2a - 2/3b) ( 3/5a + 2/3b) multiply the following
Answer:
Step-by-step explanation:
[tex](\dfrac{1}{2}a-\dfrac{2}{3}b)(\dfrac{3}{5}a+\dfrac{2}{3}b)=\dfrac{1}{2}a*(\dfrac{3}{5}a+\dfrac{2}{3}b) - \dfrac{2}{3}b*(\dfrac{3}{5}a+\dfrac{2}{3}b) \\\\\\= \dfrac{1}{2}a*\dfrac{3}{5}a + (\dfrac{1}{2}a*\dfrac{2}{3}b) - \dfrac{2}{3}b*\dfrac{3}{5}a- \dfrac{2}{3}b*\dfrac{2}{3}b\\\\\\=\dfrac{3}{10}a^{2} + \dfrac{1}{3}ab - \dfrac{2}{5}ab -\dfrac{4}{9}b^{2}\\\\=\dfrac{3}{10}a^{2} +\dfrac{1*5}{3*5}ab-\dfrac{2*3}{5*3}-\dfrac{4}{9}b^{2}\\\\\\[/tex]
[tex]=\dfrac{3}{10}a^{2}+\dfrac{5}{15}ab-\dfrac{6}{15}ab -\dfrac{4}{9}b^{2}\\\\=\dfrac{3}{10}a^{2}-\dfrac{1}{15}-\dfrac{4}{9}b^{2}[/tex]
dan drove 512miles in 8hours. what was hos average speed for the trip
Answer:
64 miles per hour
Step-by-step explanation:
512 divided by 8 equals 64
Answer:
jkb jhb n
Step-by-step explanation:
5.) Dynasti works in a department store selling clothes. She makes a guaranteed salary of
$1250 per week and is paid a commission of 15% of her sales. Write an equation to model the
situation
How much money will Dynasti make if she sells $4,000 worth of clothing?
Answer: y = .15x + 1250
y = weekly salary
x = sales
Step-by-step explanation:
$200 is divided in the ratio 6: 4, What is the smaller part?
Answer:
Step-by-step explanation:
first put 6:4
6 is 3 by 2
4 is 2 by 2
the 2 in 4 and 6 is gone
so we will have in the 6 3 left and in the 4 2 left
so what is 3 by 2
hhhhhhhhhhhheeeeeeeeeelllllpppppppppp me
Answer:
m<b=107º
Step-by-step explanation:
180-41-32=107
D and B are congruent
14/25, 29/50, 53/100, 13/20, 3/5. Convert them into decimals
Answer:
14/25=0.56
29/50=0.58
53/100=0.53
13/20=0.65
3/5=0.60
For FHG find the measure of the smallest angle ∠HFG, if m∠GHF = 92° and m∠HGF =72°
will give brailist to correct answer and if you show the work
The sum of the measure of angle of a triangle = 180° .
Given two angles = 92° and 72°
_________________________92° + 72° = 164°
180° - 164° = 16° (Ans)
Answer:
the answer is 16!
A rectangle has dimensions x and x + 5. Determine the value of x that gives the rectangle an area of 36 cm^2.
a) 9
b) 4
c) 6
d) none of these
none of these i guess
Which tenths is 8.275 between
Answer:
8.3
Step-by-step explanation:
[tex] \sf \: please \: answer \: and \: do \: not \: spam[/tex]
¢αяσυѕєℓ :)
It's based on integrals....
Hello Carousel!
[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]
Solve the integral.[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex] \tt \:\int \: \frac{ x + 2 }{( {x}^{2} + 3x + 3) \sqrt{x + 1}} \: dx \\ [/tex]
First, let's take I as ⇨ [tex]\tt \:\int \: \frac{ x + 2 }{( {x}^{2} + 3x + 3) \sqrt{x + 1}} \: dx \\ [/tex].
[tex]\tt \:I = \int \: \frac{ x + 2 }{( {x}^{2} + 3x + 3) \sqrt{x +1}} \: dx \\\tt \: I =\int \: \frac{ x + 2 }{( {x}^{2} + 2x + 1 + x + 2) \sqrt{x + 1}} \: dx \\ \tt \:I =\int \: \frac{ x + 2 }{( ({x + 1}^{2}) + x + 2) \sqrt{x + 1}}[/tex]
Let, x + 1 = m² => dx = 2mdm.
[tex]\tt \:I =\int \: \frac{ {m}^{2} + 1}{ {m}^{4} + {m}^{2} + 1 \cdot \: m} 2mdm \\ \tt \:I =\int \: \frac{ {m}^{2} + 1}{ {m}^{4} + {m}^{2} + 1 \cdot \: \bcancel{ m}} 2 \bcancel{m}dm \\ \tt \: I = \: \int \: \frac{ {m}^{2} + 1}{ {m}^{4} + {m}^{2} + 1 } 2dm[/tex]
Now, divide the numerator & denominator by m²....we'll get it as...
[tex]\tt \:I =2\int \: \frac{ 1 + \frac{1}{ {m}^{2} } }{ {m}^{2} + 1 + \frac{1}{ {m}^{2} } } \: dm \\\tt \: I =2\int \: \frac{ 1 + \frac{1}{ {m}^{2} } }{( {m}^{2} + \frac{1}{ {m}^{2} } - 2) + 3} \: dm \\\tt \: I =2\int \: \frac{ (1 + \frac{1}{ {m}^{2} }) \: dm }{ ({m} - \frac{1}{ m } ) ^{2} + 3} [/tex]
Now, let m - 1/m be t => (1 + 1/m²) dm = dt
[tex]\tt \:I =2\int \: \frac{ dt}{ {t}^{2} + 3 } \\ \tt \:I = 2\int \: \frac{ dt}{ {t}^{2} + ( \sqrt{3}) ^{2} }[/tex]
We know, [tex]\tt \:\int \: \frac{dx}{ {x}^{2} + a ^{2} } = \frac{1}{a} tan ^{ - 1} (\frac{x}{a} ) + c[/tex]...therefore...
[tex]\tt \:I = \frac{2}{ \sqrt{3} } {tan}^{ - 1} ( \frac{t}{ \sqrt{3} } ) + c \: \rightarrow \boxed{ \tt \: eq. \: 1}[/tex]
Now, substitute the value of 't' in eq. 1..we'll get..
[tex]\tt \:I = \frac{2}{ \sqrt{3} } {tan}^{ - 1} ( \frac{m - \frac{1}{m} }{ \sqrt{3} } ) + c \: \rightarrow \boxed{ \tt \: eq. \: 2}[/tex]
Now, substitute the value of 'm' in eq. 2...we'll get...
[tex] \tt \: I = \frac{2}{ \sqrt{3} } {tan}^{ - 1} ( \frac{ \sqrt{x + 1} - \frac{1}{ \sqrt{x - 1} } }{ \sqrt{3} } ) + c \\ \tt \:I = \frac{2}{ \sqrt{3} } {tan}^{ - 1} ( \frac{x + 1 - 1}{ \sqrt{3} \sqrt{x - 1} } ) + c \\ \boxed{\boxed{ \bf \: I = \frac{2}{ \sqrt{3} } {tan}^{ - 1} ( \frac{x }{ \sqrt{3 (x - 1} )} ) + c }}[/tex]
The correct answer is Option B.__________________
The question is really long & tricky but once you get the hang of it you'll be good. Good luck!__________________
Hope it'll help you!
ℓu¢αzz ッ
please help me thank you
Answer:
2.4 cm
Step-by-step explanation:
1.2/3 = 0.96/x
x = (3 *0.96) / 1.2
x = 2.4 cm
PLEASSEEE HELP THIS DUES ON MONDAY AND I CAN'T FIGURE IT OUT PLS HELP PLSSSSSSSSS
Answer:
carltzy Poland in ngayon
Please help me as soon as you can.I will give you 30points and who answers the quickest will be the brainiliest
How much will it cost for him to buy 3 dozen using the rate $12.00 for 20 cookies?
the difference between 4/9 of a number and seven is five
Answer:
if x is the number
4/9x - 7=5
4/9x= 7+5
4/9x= 12
x= 12×9/4
x= 108/4
x=27
Find the distance between points (1, 3) and (9, 18) on the coordinate plane.
help :)))))))))))))))))))))))))))))
Answer:
-6 is the same as Subtracting 6, C.
Hope this helps!
Step-by-step explanation:
For example,
5 - 6
5 is positive, +5
and 6 is negative, -6
Answer:
easy subtracting 6 :))
Step-by-step explanation:
can i get brainliest uwu^_^
Given the function f(3) = -2x + 5. What are three possible points?
Answer:
(3,-1)
Step-by-step explanation:
NEED HELP ASAP!!!!!!!!!!!!!!
Answer: B
Step-by-step explanation:
what is one third of 16
Answer:
It is 16over 3or 5.333333333333
Step-by-step explanation:
1/3*16=16/3
16/3=5.33333333333333
The velocity of a moving body is given by the equation V = 12t – 6t2. For what
value of t is the velocity greatest?
Answer:
greatest velocity 6
Step-by-step explanation:
v=12t-6t2
dv/dt=0
12-12t=0
t=1
v at t=1=12-6=6