Show if 2 is a SOLUTION or NOT a SOLUTION to the equation 0.5(x + 0.8) = 1.4
Step-by-step answer:
0.5(x+0.8)=1.4
0.5x+0.4=1.4
0.5x+0.4-0.4=1.4-0.4
0.5x=1
0.5x/0.5=1/0.5
x=2
Plzzzzz give me Brainliest!!!!!
1. Jacob has $500 saved. He receives a gift of $100 as a graduation present.
Write an expression for the total amount of money he has.
what is 15^4/15 simplified?
Answer:
15^3
Step-by-step explanation:
Since 15^4 means 15 x 15 x 15 x 15, therefore, just subtract the power 4 from one because you are dividing it by 15:
15^4 / 15 = 15^3
The sides of a triangle in cm, are , x , 2x – 5 and 2x – 3 . The perimeter of the triangle is 32 cm . i) Write down an equation for x
9514 1404 393
Answer:
32 = (x) +(2x -5) +(2x -3)
Step-by-step explanation:
The perimeter is the sum of the side lengths:
P = a + b + c
32 = (x) +(2x -5) +(2x -3)
__
This can be simplified to ...
32 = 5x -8
and solved to find x:
x = (32 +8)/5 = 8
what does 8+2y-5x+y=x-1
The value of x is 1/2y+3/2
Answer:
y = 2x - 3
Step-by-step explanation:
8 + 2y - 5x + y = x - 1
3y = 6x - 9
y = 2x - 3
slope is 2, y-intercept is -3
Solve using quadratic formula.
[tex]4 {s}^{2} + 8s + 4 = 0[/tex]
These three points are collinear. (3, 6), (-2, -9), (0, -4)
True False
Answer:
False
Step-by-step explanation:
to determine if the points are collinear, determine the rate of change(slope) between (-2, -9) and (0, -4) and then the rate of change between (0, -4) and (3,6) and rate of change between (-2, -9) and (3, 6). if the rates are equivalent then the points are all collinear
between (-2, -9) and (0, -4):
m=(y2-y1)/(x2-x1)
=(-4-(-9))/(0-(-2))
=5/2
between (0, -4) and (3,6):
m=(y2-y1)/(x2-x1)
=(6-(-4))/(3-0)
=10/3
because 5/2 does not equal 10/3 the rates of change are not equal and the points are not collinear, do not need to consider slope between (-2, -9) and (3, 6)
Can someone help me with this trigonometry question
==================================================
Explanation:
Apply the law of cosines to find angle C
c^2 = a^2 + b^2 - 2*a*b*cos(C)
19^2 = 11^2 + 17^2 - 2*11*17*cos(C)
361 = 121 + 289 - 374*cos(C)
361 = 410 - 374*cos(C)
361 - 410 = -374*cos(C)
-49 = -374*cos(C)
-374*cos(C) = -49
cos(C) = (-49)/(-374)
cos(C) = 0.131016042780749 ..... which is approximate
C = arccos(0.131016042780749)
C = 82.4716905247836
C = 82 degrees
Notes:
arccos is shorthand for "arccosine". It is the same as inverse sine.Make sure your calculator is in degree mode. You can check by computing cos(60) and you should get 0.51/3 divided by 4
2/5 divided by 4
4/7 divided by 4
2/5 divided by 3
5/6 divided by 5
5/8 divided by 10
Answer:
1. 0.0833
2. 0.1
3. 0.1428
4. 0.1333
5. 0.1666
6. 0.0625
A 4-pound bag of carrots costs $2.48. What is the unit price? *
Answer:
0.62 cents per pound
Step-by-step explanation:
2.48/4
to find price per pound which is the unit price
2.48/4=0.62
brainliest appreciated
Please help 30 points
A recursive definition of an arithmetic sequence is shown below.
a = 7
an = an-1 + 3
Which of the following expressions represents the nth term of this sequence?
A. Ont3
B.
3n + 4
C.O3n +7
D.O7n +3
if I buy 54 packs of cookies and 15 cookies are in each pack how many cookies do I have all together?!!?!?!
Answer:
810
Step-by-step explanation:
54x15=810.
hope this helps
Step-by-step explanation:
54 x 15 = 810
all you have to multiply
4. An annual pass covering emtrance fees to more than
2,000 national parks costs $80. If the total income from
the annual passes is $12,800 in one month, which equation
can you use to find the number of passes purchased that month?
F. 12,800p = 80
H. 80p = 12,800
G. 12,800 – p = 80
J. 80 + p = 12,800
Answer:
Search it up
Step-by-step explanation:
Someone already answered it on brainly
Round 2,389 to the nearest hundred
Answer:
2,400
Step-by-step explanation:
2,389 rounded to the nearest hundred is 2,400
Please help me! Please and thank you!
Answer:
4m+0.50
Step-by-step explanation:
help pls hurry
find the volume
Step-by-step explanation:
hope it helps you
here is ur answer
Katharine has a bag containing 20 dried beans. Eight of the beans are painted blue. If Katharine selects a bean from the bag at random, what is the probability that she will draw a bean that is NOT blue? Al out of 3 B 2 out of 5 C 3 out of 5 D 2 out of 3
Given:
Total number of beans = 20
Number of blue of beans = 8
One bean is selected from the bag at random.
To find:
The probability that she will draw a bean that is NOT blue.
Solution:
We have,
Total number of beans = 20
Number of blue of beans = 8
Number of non-blue beans = 20 - 8
= 12
Now, the probability that she will draw a bean that is NOT blue is
[tex]P(\text{Bean is not blue})=\dfrac{\text{Number of non-blue beans}}{\text{Total number of beans}}[/tex]
[tex]P(\text{Bean is not blue})=\dfrac{12}{20}[/tex]
[tex]P(\text{Bean is not blue})=\dfrac{3}{5}[/tex]
Therefore, the correct option is C.
HELLLLPPPPPPPP☝️☝️☝️☝️☝️!!!!
PLEASE HELP ME!!! I need the answer quick please if you can!
Answer:
angle 1 is 145°
Step-by-step explanation:
this is because à horizontal line is always 180° so you jus have to subtract 35 from 180
Is AABC= ADEF? If so, name the postulate that applies.
Answer:
B. congruent - SAS
Step-by-step explanation:
IT IS CONGRUENT BY SAS AXIOM.
HOPE IT HELPS :)
at this rate how much would 6 eggs rolls cost
Answer:1.95
Step-by-step explanation:
A car travels at a speed of 55 kilometers per hour.Find the distance travelled by the car in 12 minutes and 30 seconds.Find the Answers in meters
Answer:
Step-by-step explanation:
(distance) d = (speed) s * t (time)
= 55km/h * 12.30m/s
= 11.275 km
= 11.275 * 1000
= 11275m
Hailstones form when strong winds support ice particles high in clouds. We can assume that the diameter of a hailstone varies directly with the time the hailstone takes to form. A hailstone with a diameter of 0.75 inches takes about 12 minutes to form. Write an equation that gives the hailstone’s diameter d after t minutes. Then find the diameter of a hailstone that takes 20 minutes to form.
Answer:
the equation y= ax represents direct variation between x and y is said to vary directly with x. the nonzero constant a is called the constant of variation.
Step-by-step explanation:
I'm not sure if that's what you were asking for but there .
brainiest please.
A spinner with the numbers 1 through 8 is spun 25 times. What is the experimental probability of the spinner stopping on the number 4?
Answer: Because if you think about it it would be 4 because of the fact that it is in the middle of 1-8. So there is a higher chance to land on 4 than any other number.
Step-by-step explanation:
The experimental probability of the spinner stopping on the number 4 is 1/25.
What is experimental probability?Experimental probability is a probability that is determined on the basis of a series of experiments.
A random experiment is done and is repeated many times to determine their likelihood and each repetition is known as a trial.
Given that, a spinner with the numbers 1 through 8 is spun 25 times.
we need to find the experimental probability of the spinner stopping on the number 4
So,
Experimental Probability =
P(E) = Number of times an event occurs / Total number of trials.
Number of times an event occurs = 1
Total number of trials = 25
Therefore,
P(E) = 1/25
Hence, the experimental probability of the spinner stopping on the number 4 is 1/25.
Learn more about experimental probability click;
https://brainly.com/question/30694293
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13q-30q =
Please show work
how do you solve this using the substitution method?
Answer:
x=13, y=36
Step-by-step explanation:
y−2x=10
6x−2y=6 −2x+y=10
6x−2y=6
6x=2y+6
x= 1/6(2y+6)
x=1/3y+1
-2(1/3y+1)+y=10
-2/3y-2+y=10
1/3y=12
y=36
Substitute y to check your answer
x=1/3*36+1
x=12+1
x=13
And to go further if you wish to check your answer you can substitute x
PLEASE HELP MEE I NEED TO TURN THIS IN SOON
Answer:
7x=7
Step-by-step explanation:
What is the domain of h?h(x)=4/x-5
Answer:
(−∞, 5) ∪ (5, ∞)
Step-by-step explanation:
I really hope it helps!
Good Luck!
8x-5y=-118x−5y=−118, x, minus, 5, y, equals, minus, 11 xxx-intercept: \Big((left parenthesis ,,comma \Big))right parenthesis yyy-intercept: \Big((left parenthesis ,,comma \Big))
Ob is travelling from his home to his doctor's surgery. He walks 500m to the bus stop, he then gets on the bus. When he gets off the bus, he has to walk a further 2000mm. In total, he travels 2.5km. How many km did Bob travel on the bus?
Answer:
1.998 km
Step-by-step explanation:
From the question, we know that:
When he gets off the bus, he has to walk a further 2000mm. In total, he travels 2.5km.
We convert 2000 mm to km
1 mm =1 × 10^-6 km
2000mm = x
2000mm × 1 × 10 ^-6km
= 0.002km
Subtracting this from the total distance
2.5km - 0.002 km
= 2.498 km
1 metre = 0.001 kilometre
We convert
He walks 500m to the bus stop, he then gets on the bus.
1 metre = 0.001 kilometre
We convert 500 m to km
1 m = 0.001 km
500m = x
x = 500 × 0.001
= 0.5 km
Subtracting this from the current distance, the distance he travelled on the bus is:
2.498km - 0.5km
= 1.998 km
Therefore, he travelled 1.998 km on the bus
