If a=2, b= -1 and c=1, then find the value of:
A- a+b-c²
B- a³-b+c
C- a-b-c

Using it's concept, it is found that the probability of randomly choosing a number either divisible by 5 or divisible by 3 is given by:

B) 7/16

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

Hence the probability is given by:

p = 14/32 = 7/16.

More can be learned about probabilities at https://brainly.com/question/14398287

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Answer:

4) a = 6

5) m = 1

Step-by-step explanation:

4) use FOIL, First Inside Outside Last, when you cross multiply.

[tex]\frac{a+4}{a-1} =\frac{a-2}{a-4}[/tex]

[tex](a+4)(a-4) = (a-1)(a-2)[/tex]

I'm going to do the left side first.

[tex](a+4)(a-4)\\a^2-4a+4a-16\\a^2-16[/tex]

Now I'm going to do the right side.

[tex](a-1)(a-2)\\a^2-2a-1a+2\\a^2-3a+2[/tex]

Next I'm going to rewrite back as the equation and solve for a.

[tex]a^2 - 16 = a^2 -3a +2\\a^2 - a^2 -16 = a^2-a^2-3a+2\\-16-2=-3a+2-2\\-18=-3a\\-18/-3=-3a/-3\\a=6[/tex]

5) I'm going to use distributive propoerty when I cross multiply. Then I will setup an equation like number 4 and solve for m.

[tex]\frac{5m-2}{3}=\frac{8-3m}{5} \\[/tex]

[tex]5(5m-2)=3(8-3m)\\25m-10=24-9m\\25m+9m-10=24-9m+9m\\34m-10=24\\34m-10+10=24+10\\34m=34\\34m/34=34/34\\m=1[/tex]

AnsweA jar contains 15 red​ marbles, 30 blue​ marbles, 10 green​ marbles, and 35 orange marbles. Find the probablilty of picking a green marble.r:

Step-by-step explanation:

Answer:

31.6m

Step-by-step explanation:

First, find area of the vessel [ (πr2h)/3 ]

Radius = 5.2/2= 2.6

Using Pythagorean theorem, find the height of the cone:

[tex]\sqrt{6.8^{2} -5.2^{2} }[/tex] = 4.38

Area of vessel = [tex]\frac{ (PI * 2.6 * 2 * 4.38)}{3}[/tex] =  56.88 [tex]cm^{3}[/tex]

Do cross multiplication using ratios:

1.8      =    1

56.88 =   [tex]x[/tex]

[tex]\frac{56.88}{1.8}[/tex]= 31.6

Answer:

I belive that will be a trapazoid

Step-by-step explanation:

Both sides on the top and bottom are parallel
Please tell me if im wrong!

Answer:

Trapezium

Step-by-step explanation:

It has exactly one pair of parallel sides

Answer:

70x+91

Step-by-step explanation:

Answer:

161

Step-by-step explanation:

Break it into separate parts based on order of operations:

[(3 x (2^5)) + (13 x (-2))] + 7[8 - (4 - 9)] then simplify:

3 x 32 + (-26) + 7[8 + 5]

96 - 26 + 7(13)

70 + 91

161

Answer:

D [-1,3] and R [5,27]

Step-by-step explanation:

I explained the process of finding the domain and range in your previous questions therefore I will only give you the answer for this one.

D [-1,3] or [tex]-1\leq x\leq 3[/tex]

R [5,27] or [tex]5\leq y\leq 27[/tex]

Answer:

0.444

Step-by-step explanation:

im a bit confused with the anwser choices, so just pick which ever one contains states 0.444 as it's answer choice.

hope this helps :)

Answer:

0.444

Step-by-step explanation:

1.) A rational number in the form of a fraction can be represented as a decimal by dividing the numerator by the denominator.

2.) Now let's divide 111.000000... by 250. Find enough decimal digits in the numerator so we can see whether the decimal terminates or starts to repeat. [tex]111/250 = .444[/tex]. Since the remainder is 000, this is a terminating decimal.

3.) The terminating decimal is [tex]\frac{111}{250} = 0.444.[/tex]

Answer:

Step-by-step explanation:

Given:

To Find:

Solution:

We can find the total surface area of cubiod by summing up the area of the six faces of the cubiod:

Surface Area = 2(lw+ wh + hl)

Substituting the required values:

➝ Surface Area = 2(10 × 4.1) + (4.1 × 3.7) + (3.7 × 10)

➝ Surface area= 2(41 + 15.17 + 37)

➝ Surface Area = 2(93.17)

➝ Surface Area = 186.34 cm²

Hence,

Answer:

B. the area of a rectangle with side lengths 1.40 and x

Step-by-step explanation:

To find the area of a rectangle, multiply the length by the width.

If 1.40 is the length, x is the width.

1.40×x=1.40x

So B is the correct answer.

Regular polygons have equal sides

Irregular polygons have unequal sides

Answer:

regular polygons have sides and interior angles that are the same and irregular polygons have sides and interior angles that are different

Step-by-step explanation:

Answer:

options c

trapezoid

saw a four sided figure. It had one pair of congruent sides that were not parallel. It also had one pair of parallel lines.

saw a four sided figure. It had one pair of congruent sides that were not parallel. It also had one pair of parallel lines.What shape has Chase described?

Answer:

C is the correct answer.

Step-by-step explanation:

You're trying to find a true statement about the point (1,7)

A. To plot the ordered pair (1 , 7), travel seven units to the right on the x-axis and one unit up on the y-axis, from the origin.

B. To plot the ordered pair (1 , 7), travel one unit to the right on the y-axis and seven units up on the x-axis, from the origin.

C. To plot the ordered pair (1 , 7), travel one unit to the right on the x-axis and seven units up on the y-axis, from the origin.

D. To plot the ordered pair (1 , 7), travel seven unit to the right on the y-axis and one units up on the x-axis, from the origin.

_____________________________________________________
Solving:

A is incorrect because it shows the point (7,1).

D is incorrect because that isn't the proper way to graph a coordinate.

B is incorrect because it says travel one unit to the right on the y axis which is the incorrect axis to graph the point (1,7).

C is your correct answer because you need to move 1 unit to the right on the x-axis to get to the coordinate (1,0). Then, you need to go 7 units up on the y-axis to reach (1,7).

Answer:

Step-by-step explanation:

x is the adjacent side of 30°

Hypotenuse = 22

[tex]Cos \ 30^ \circ = \dfrac{adjacent \ side}{hypotenuse}\\\\\\0.866 = \dfrac{x}{22}\\\\\\0.866*22 = x\\[/tex]

x = 19.1

Answer:

cosθ=Adjacent/ hypotenuse

[tex] \cos(30) = \frac{x}{22} \\ \\ \frac{ \sqrt{3} }{2} = \frac{x}{22} \\ \\ 2x = 22 \sqrt{3} \\ \\ x = \frac{22 \sqrt{3} }{2} \\ \\ x = 11 \sqrt{3} = 19.05 = 19.1[/tex]

Answer:

D.

Step-by-step explanation:

REarranging the fromula:

F  = m . a

M is  in grams and acceleration is in meters / second squared

grams . metres per second squared.

Answer:

D) grams · meters per second squared

Step-by-step explanation:

[tex]\sf a=\dfrac{F}{m} \implies F=ma[/tex]

If a has units of  [tex]\sf ms^{-2}[/tex]

If m has units of [tex]\sf g[/tex]

Then as F is the product of m and a, then

F has units of [tex]\sf g \cdot ms^{-2}=gms^{-2}[/tex]

Answer:

B. 12

Step-by-step explanation:

Edges are the straight lines

Answer:465

Step-by-step explanation:

Answer: the answer is d) several players have asthma .

243+222=465

Step-by-step explanation:

which is true because players do have asthma and ii also took the test and made a 100 .

Answer:

y > 1/3x - 5/3

x-3y < 5

Step-by-step explanation:

We simplify x-3y=5, to y = 1/3x - 5/3

We notice the boundary line is dotted, we know the inequality must be < or > rather than ≤ or ≥.

The shading is above the line which indicates that in y-intercept form we must use >.

y > 1/3x - 5/3

or x-3y < 5

Either of these show the exact same thing.

Answer:

A

Step-by-step explanation:

16 × 2 = 32

20 × 2 = 40

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[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Here we go ~

[tex]\qquad \tt \dashrightarrow \: \sin(x) = 0.6[/tex]

[tex]\qquad \tt \dashrightarrow \: \sin(x) = \dfrac{6}{10} [/tex]

[tex]\qquad \tt \dashrightarrow \: \sin(x) = \dfrac{3}{5} [/tex]

[tex]\qquad \tt \dashrightarrow \:x = \sin {}^{ - 1} ( \dfrac{3}{5} ) [/tex]

[tex]\qquad \tt \dashrightarrow \:x = 37 \degree[/tex]

Now, since we have to find the value of x in quadrant 2, we have to subtract the given value from 180°

that is :

[tex]\qquad \tt \dashrightarrow \:x = 180 - 37[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 143 \degree[/tex]

Answer:

surface area of the balloon is 199 cm^2

Answer:

the mean is 46.

Step-by-step explanation:

The total is 460 and divided by the amount of numbers(10) is 46.

Answer:

B

Step-by-step explanation:

9833923

Answer:

increase to 38 and have the unused ones in for maintenance