How many real solutions exist for this system of equations?
A. Zero
B. One
C. Two
D. Infinite

Answer:

128 heads.

Step-by-step explanation:

From the experiment the probability = 16/25.

So the number of heads expected is (16/25) * 200

= 16 * 8

= 128.

Answer:

128 heads is the answer

Step-by-step explanation:

16/25=.64

.64*200=128

I would predict that it would land on heads 128 times if you flipped the coin 200 times.

Answer: -8=r

Step-by-step explanation:

Answer:

r= -9

Step-by-step explanation:

We are given the equation:

-11 = r+ (-2)

If we want to solve for r, we must isolate r on one side of the equation.

Let's simplify the right side. A + - can just be written as -

-11= r-2

2 is being subtracted from r. The inverse of subtraction is addition. Add 2 to both sides of the equation.

-11 + 2= r-2+2

-11+2=r

-9=r

r=-9

Let's check our solution. Plug -9 in for r and solve.

-11= -9 + (-2)

-11= -11

This checks out, so we know our solution is correct.

The solution to the equation -11=r+(-2) is r=-9

Based on the number line provided for this exercise (see attachment), a point which could represent 5/3 is given by C.

A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numerical values that are placed at equal intervals along its length.

Based on the number line provided for this exercise (see attachment), a point which could represent 5/3 is given by C:

1 < C < 2

Read more on number line here: brainly.com/question/24644930

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Answer: It's not a rhombus

It would be a rhombus if all four sides were the same length, but we don't have that. Side DE is longer than EF, because the opposite angles are larger. We have 75 > 72, so that's why DE > EF.

Answer:

-4

Step-by-step explanation:

firt you add a minus one on both sides:

7n + 8 + 1 + (- 1) = -19 + (- 1) => 7n + 8 = -20

then add a minus eight on both sides:

7n + 8 + (- 8) = -20 + (- 8) => 7n = -28

finally in order to find (n) , devide both sides by seven:

7n ÷ 7 = (- 28) ÷ 7 => [ n = -4 ]

Replace x with 3. Then simplify

f(x) = 4x+1

f(3) = 4(3)+1

f(3) = 12+1

f(3) = 13

Answer:13

Step-by-step explanation:

You place 3 in place of x then multiply 4 and 3. You would get 12. Then you add 1. Which is 13.

Answer:2/4 √x (2 over 4 square root x)

Step-by-step explanation:

Answer:

Answer is D if your using edgenity.

Step-by-step explanation:

The answers are never mixed up, so it will always be the last one.

The length of the straight line → BD is 74.22 mm.

A line segment is a piece or part of a line having two endpoints. Unlike a line, a line segment has a definite length.

Given is a line BD such that point C lies on BD. Also, BC = 52.39 mm and

CD = 21.83 mm.

We can say that for a straight line -

BD = BC + CD

The given measurements are -

BC = 52.39 mm

CD = 21.83 mm

Substituting the values, we get -

BD = 52.39 + 21.83

BD = 74.22 mm

Therefore, the length of the straight line → BD is 74.22 mm.

To solve more questions on Line segments, visit the link below-

https://brainly.com/question/28245289

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Answer: 12 is the greatest common factor.

Step-by-step explanation:

Answer:

The answer is 14

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

the greatest common factor of 9 and 22 is 1.

Answer:

[tex]d = 100-25t[/tex]

Step-by-step explanation:

Let's use basic logic here.

If we are 100 miles away from a place, and we've got 25 miles to go, we've already travelled 75 miles.

Since we've travelled 75 miles in 3 hours, then we travel at a rate of [tex]75\div3=25[/tex] miles per hour.

The distance to City A will be represented as 100 - miles already travelled. We  can find how many miles have been travelled by multiplying 25 by [tex]t[/tex], the amount of hours we've spent driving.

This creates the equation [tex]d = 100 - 25t[/tex]

Hope this helped!

Answer: LCM = pq(p - q) = p²q - pq²

Step-by-step explanation:

      p² - pq               pq - q²

         ∧                         ∧

    p   (p - q)             q   (p - q)

p² - pq:    p  · (p - q)

pq - q²:    q  · (p - q)

GCF: (p - q)

LCM: p · q · (p - q)

Answer:

Hope it helps!

please mark me brainliest

Answer:

[tex] \boxed{\sf C. \ 161 ^{ \circ}} [/tex]

Step-by-step explanation:

Opposite angles are also congruent angles, meaning they are equal or have the same measurement.

[tex] \sf \implies \angle VYZ = \angle WYT \\ \\ \sf \implies(8x + 1) ^{ \circ} = (9x - 19)^{ \circ} \\ \\ \sf \implies 8x^{ \circ} + 1^{ \circ} = 9x^{ \circ} - 19^{ \circ} \\ \\ \sf \implies 8x^{ \circ} - 9x^{ \circ} + 1^{ \circ} = - 19^{ \circ} \\ \\ \sf \implies - x^{ \circ} = - 19^{ \circ} - 1^{ \circ} \\ \\ \sf \implies \cancel{ -} x^{ \circ} = \cancel{- }20^{ \circ} \\ \\ \sf \implies x^{ \circ} = 20^{ \circ} [/tex]

[tex] \therefore[/tex]

[tex] \sf \implies \angle VYZ =(8x + 1) ^{ \circ} \\ \\ \sf \implies \angle VYZ =(8 \times 20 + 1) ^{ \circ} \\ \\ \sf \implies \angle VYZ =( 160+ 1) ^{ \circ} \\ \\ \sf \implies \angle VYZ =161 ^{ \circ} [/tex]

Answer:

Step-by-step explanation:

4x + 2 = x + 11

3x + 2 = 11

3x = 9

x = 3

4(3)+2= 12+2 = 14

3+11= 14

14+14= 28=HQ

Answer: g(x) = (x - 8)

Step-by-step explanation:

We start with the equation:

x^2 + y^2 - 16*x + 6*y + 73 = 100.

And we want to write this as:

g(x)^2 + (y + 3)^2 = 100.

So both equations are equal, then we can write this as:

x^2 + y^2 - 16*x + 6*y + 73 = g(x)^2 + (y + 3)^2

First we can expand the right side:

g(x)^2 + (y + 3)^2 = g(x)^2 + y^2 + 2*3*y + 9

Then we have:

x^2 + y^2 - 16*x + 6*y + 73 = g(x)^2 + y^2 + 6*y + 9

Now we can cancel the equal terms in each side, like y^2 and 6*y

x^2 - 16*x + 73 = g(x)^2 + 9

Now let's subtract 9 in each side:

x^2 - 16*x + 73 - 9 = g(x)^2

x^2 - 16*x + 64 = g(x)^2

Then we can assume that g(x) = (x - a)

then:

x^2 - 16*x + 64 = (x - a)^2 = x^2 - 2*a*x + a^2

-16*x + 64 = -2*a*x + a^2

now we must find the value of a, we have two equations:

-2*a = -16

a^2 = 64

and each equation yields to:

a = -16/-12 = 8.

a = √64 = 8

Then we have: g(x) = (x - 8)

Completing the squares, it is found that: [tex]g(x) = x - 8[/tex]

--------------------------------

The expression given is:

[tex]x^2 + y^2 - 16x + 6y + 73 = 100[/tex]

To complete the squares:

--------------------------------

Doing these steps:

[tex](x - 8)^2 + (y + 3)^2 = 100 - 73 + 8^2 + 3^2[/tex]

[tex](x - 8)^2 + (y + 3)^2 = 100 - 73 + 64 + 9[/tex]

[tex](x - 8)^2 + (y + 3)^2 = 100[/tex]

Which means that:

[tex]g(x) = x - 8[/tex]

A similar problem is given at https://brainly.com/question/16269892

Answer:[tex]\frac{500}{3}[/tex]π [tex]in^{3}[/tex]

Step-by-step explanation: diameter=10 in

radius=[tex]\frac{diameter}{2}[/tex]=[tex]\frac{10}{2}[/tex]=5 in

volume=[tex]\frac{4}{3}[/tex][tex]r^{3}[/tex]

=[tex]\frac{4}{3} X 5^{3}[/tex]  x π =[tex]\frac{500}{3}[/tex]π [tex]in^{3}[/tex]

Complete Question:

In a jar there are 19 red jelly beans and 10 green jelly beans. In how many ways can you pick 4 red jelly beans and the same number of green jelly​ beans?

Answer:

[tex]Both = 813960[/tex]

Step-by-step explanation:

Given

Red Jelly Beans = 19

Green = 10

Required

Select 4 out of 19 red jelly beans and 4 out of 10 green jelly beans

The keyword in the question is pick and this implies combination;

4 from 19 red jelly beans is calculated as follows

[tex]^nC_r = \frac{n!}{(n-r)!r!}[/tex]

Where n = 19 and r = 4

[tex]^{19}C_4 = \frac{19!}{(19-4)!4!}[/tex]

[tex]^{19}C_4 = \frac{19!}{15!4!}[/tex]

[tex]^{19}C_4 = \frac{19 * 18 * 17 * 16 * 15!}{15! * 4 * 3 * 2 * 1}[/tex]

[tex]^{19}C_4 = \frac{19 * 18 * 17 * 16}{4 * 3 * 2 * 1}[/tex]

[tex]^{19}C_4 = \frac{93024}{24}[/tex]

[tex]^{19}C_4 = 3876[/tex]

Similarly;

4 from 10 green jelly beans is calculated as follows

[tex]^{10}C_4 = \frac{10!}{(10-4)!4!}[/tex]

[tex]^{10}C_4 = \frac{10!}{6!4!}[/tex]

[tex]^{10}C_4 = \frac{10 * 9 * 8 * 7 * 6!}{6! * 4 * 3 * 2 * 1}[/tex]

[tex]^{10}C_4 = \frac{10 * 9 * 8 * 7 }{4 * 3 * 2 * 1}[/tex]

[tex]^{10}C_4 = \frac{5040}{24}[/tex]

[tex]^{10}C_4 = 210[/tex]

Ways of selecting both is calculated as follows

[tex]Both = 3876 * 210[/tex]

[tex]Both = 813960[/tex]

Answer:

175-3x=490

Step-by-step explanation:

he only has 3 weeks, which is a time limit, so it would be -3x instead of +3x, he only has 175, so he needs more, so it's positive. Hope this is correct (:

Answer:

I believe the answer is $105

Step-by-step explanation:

Well you have the price of the phone which is $490 and you also have saved $175 towards the new phone.

I used substraction $175 from $490 leaves $315.

Then i divided $315 by 3 weeks and got $105 .

Answer:

A -40

Step-by-step explanation:

Answer:

the correct answer is D. 40

Answer:

Solution : 4 or more times

Step-by-step explanation:

As the inequality is given to us, it makes this a bit simpler.

3t + 10 ≥ 22 ( Subtract 10 on either side )

3t ≥ 12 ( Divide 3 on either side )

t ≥ 12 / 3 ≥ 4

And hence we have a solution of t ≥ 4. Elena will ride around the loop 4 or more times.

Answer:

Sampling Error

Step-by-step explanation:

We are told that the phenomenon is the naturally occurring difference between a sample statistic and the corresponding population parameter.

Now, it's sampling error because sampling error is simply defined as a deviation or difference in a sampled value as against the true population value due to the fact the sample is not a true representative of the population.

This is also similar to the definition given in the question.

Thus, it's sampling error!

Answer: x = - 17

Step-by-step explanation:

−12x−60=144

add 60 to both sides

-12x-60+60=144+60

simplify

-12x=204

divide both sides by -12

-12/-12 = 204/-12

simplify and ur Answer!! is x=-17

Answer:

83/3 is ur answer .......

Answer:

x ≤ -15

Step-by-step explanation:

-x / 3 ≥ 5

multiply by 3

-x ≥ 15

add x to both sides and subtract 15 from both sides

-15 ≥ x or x ≤ -15

Answer: 5.6%

Step-by-step explanation:

Actual Value observed=2.850 g/cm3

Expected value=2.699 g/cm3

Error =Actual value - expected value

         = 2.850-2.699

Error  = 0.151

Error percent = [tex]\frac{Error}{Expected Value} 100%[/tex]%

                     =[tex]\frac{0.151}{2.699} *100\\0.056*100\\5.6[/tex]

The student's percent error ​is 5.6%

Answer:

x2-y2?x2+xy=x-y/x

Step-by-step explanation:

as we know , x2-y2=(x+y)(x-y)

and in case of the denominator take x as a common one then we will get

(x+y)(x-y)/x(x+y)

=x-y/x    its the answer

thank u

Answer:

b =0

Step-by-step explanation:

The only value where  |b| = -b  is when b=0

|0| = -0

0 = 0

Absolute value means non- negative

non-negative = negative

This is only true when we equal zero

Answer: b = 0 or anything negative (like b = -2)

So any value of b such that [tex]b \le 0[/tex]

==================================================

Explanation:

|b| is the distance from b on the number line to 0

The distance is never negative as negative distance does not make sense.

If b was some positive number, then |b| = b. For instance, |7| = 7. This shows 7 is seven units away from 0 on the number line.

----------

If b is negative or zero, then |b| = -b. Why? Because the result of |b| is the opposite of whatever negative b value you put in. For example, b = -2 leads to

|b| = |-2| = 2

while

-b = -(b) = -(-2) = 2

The two negatives cancel each other out to get a positive result.

This shows, |-2| = -(-2) = 2

Meaning that the location -2 is two units away from 0 on the number line.

Answer:

3 is your answer

Step-by-step explanation:

-7-(-10)= 3

Answer:

[tex]\Huge \boxed{3}[/tex]

Step-by-step explanation:

-7-(-10)

Distribute the negative sign.

-7+10

Add the numbers.

3

Answer:

22

Step-by-step explanation:

[tex]f(x)15+x\\\\f(7)15+7\\\\\boxed{f(7)=22}[/tex]

Hope this helps.