Evaluate the numerical expression 4(8 - 2) = (-3) + 7

Answer:

27

Step-by-step explanation:

Verified correct with test results.

Answer:

Lisa is 23 years old.

Step-by-step explanation:

36 (total) - 13 (brothers age) = 23 (Lisa's age)

23+13=36

Answer:

A=(−1,3),B=(4,−9)

We know that the distance between two points

d=

(x

2

−x

1

)

2

+(y

2

−y

1

)

2

Therefore,

d=

(4−(−1))

2

+(−9−3)

2

d=

(4+1)

2

+(−12)

2

d=

(5)

2

+(−12)

2

d=

25+144

d=

169

d=13 units

The side lengths of A'A and B'B are 18 and 9 respectively.

When the respective sides are proportional and the corresponding angles are congruent, two triangles are said to be similar.

Given that, segment A'B' is parallel to segment AB.

Let A'A =x and B'B = y.

Since the segments are parallel the triangles ΔA'B'C and ΔABC are similar.

As per the property of similar triangles, it follows:

12/8 = (12 + x)/20

12 + x = (12/8)20

x = 18

And,

6/8 = (6+y)/20

6 + y = (6/8)20

y = 9

Hence, the side lengths of A'A and B'B are 18 and 9 respectively.

Learn more about similar triangles:
https://brainly.com/question/25882965

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Answer:

30%

Step-by-step explanation:

There are 6 shaded squares out of 20 squares. That is the same as 30 out of 100. 30/100=30%

Answer: 30%

Step-by-step explanation:

5*4 is 20.

So that your area.

6/20 converted to percentage: 30%

Answer:

The answer will be MAB= 19.53m

Step-by-step explanation:

hope it helps have a great day ^_^

Answer:

i think b???

Step-by-step explanation:

Answer:x=10 y= 10 square root 2

Step-by-step explanation:

Answer:

x = 1/2

x = -3

Step-by-step explanation:

[tex]f(x)=2x^2+5x-3[/tex]

Factor

Zero Product Property

X-Intercepts

____________________

To find the x intercepts, we need to first factor our given polynomial. The quickest trick I use to factor is to find two numbers that multiply to c (in this case -3) and the same two numbers that add to b (in this case 5).

The two numbers would be -1 and 3, but along with 2x to help out.

Therefore the binomial for this factor is :

[tex](2x-1)(x+3)[/tex]

Now to solve the x-intercepts, we separate the binomials into an algebraic expressions :

2x - 1 = 0

x + 3 = 0

Isolate for x in both of them :

2x - 1 = 0

Add 1 to both sides :

2x = 1

Divide both sides by 2 :

x = 1/2

x + 3 = 0

Subtract 3 from both sides :

x = -3

Answer:

X= .5 (decimal form)

X= 1/2 (Exact form)

Answer: 5

Work Shown:

f(x) = 2x+1

f(2) = 2*2+1 ... x has been replaced with 2

f(2) = 4+1

f(2) = 5

The input is x = 2. The output is y = 5.

Answer:

none

Step-by-step explanation:

Answer:

235

Step-by-step explanation:

470 ÷ 2 = 235

Answer:

75 miles per hour

Step-by-step explanation:

they traveled 450 miles in 6 hours

450/6 = 75 mph

Answer:

13

Step-by-step explanation:

It is a parallelogram so the opposite angles are the same.

All angles sum to 360 degrees.

This means that the adjacent angles sum to 180 degrees.

4a + 11 + 9a = 180 = 13a + 11

13a = 169

a=13

Answer(s):  

y = 2(x - 1)2 + 3

y = 2(x2 - 2x + 1) + 3

y = 2x2 - 4x + 2 + 3

y = 2x2 - 4x + 5

Answer:

Step-by-step explanation:

Vertex form of quadratic function:

Given a graph with:

We can see that:

The equation becomes:

Substitute coordinates (-6, -6) into the equation to find the value of a:

The function becomes:

Answer:

6.8 is greater than 6.5

Step-by-step explanation:

Answer: A (6.8 is greater than 6.3)

Step-by-step explanation:

A (6.8 is greater than 6.3)

Answer:

Step-by-step explanation:

5[tex]\frac{1}{2}[/tex]+2[tex]\frac{1}{7}[/tex]

5[tex]\frac{7}{14}[/tex]+2[tex]\frac{2}{14}[/tex]

7 9/14  or 7[tex]\frac{9}{14}[/tex]

Answer:

[tex] \frac{135}{14} [/tex]

Answer:

2x-y=0

x=1/2y

Step-by-step explanation:

Answer:

Your solution is (1/2, 1).

Step-by-step explanation:

3х + Зу = -x + 5y

First we want to look at each side of the equation separately.

3х + Зу ⇒ This expression is fully simplified because you cannot add different variables together.

-x + 5y ⇒ This expression is fully simplified because you cannot add different variables together.

3х + Зу = -x + 5y

Now, let's bring the like terms together.

[add x to both sides]

x + 3x + 3y = -x + x + 5y

4x + 3y = 5y

[subtract 3y from both sides]

4x + 3y - 3y = 5y - 3y

4x = 2y

We want to solve for one variable at a time, so let's isolate x.

[divide both sides by 4]

4x/4 = 2y/4

x = 1/2y

Now we have an expression for x. Plug this expression in to your original equation.

3х + Зу = -x + 5y

3(1/2y) + 3y = -(1/2y) + 5y

According to PEMDAS (parentheses/exponents | multiplication/division | addition/subtraction), we should multiply first.

3(1/2y) + 3y = -(1/2y) + 5y

3/2y + 3y = -1/2y + 5y

Now let's add on each side.

9/2y = 9/2

Now we need to isolate y by dividing both sides by 9/2 (or multiplying by its reciprocal 2/9 ← This is often easier to understand when written)

[tex]\frac{2}{9} (\frac{9}{2} y) = \frac{9}{2} (\frac{2}{9} )[/tex]

In this form, we can see that the fractions cancel each other out.

y = 1

Now that we have the value of y, plug it into our equation for x.

x = 1/2y

x = 1/2(1)

Multiply.

x = 1/2

Your solution is (1/2, 1).

You're almost done! Check your answer by plugging in both these values in to your original equation.

3х + Зу = -x + 5y

3(1/2) + 3(1) = -(1/2) + 5(1)

Multiply.

3(1/2) + 3(1) = -(1/2) + 5(1)

3/2 + 3 = -1/2 + 5

Add.

9/2 = 9/2

This equation is true, therefore your answer is correct!

Hope this helps!

Answer:

$1.25

Step-by-step explanation:

5 dollars for four pounds

one pound = $5 / 4 = $1.25

Answer: 80 cents

Step-by-step explanation: Divide 4 & 5 and get 0.8

To check your answer just multiply 0.8 and 5 which equals 4

So 1 lb cost 80 cents

Answer:

100.53

Step-by-step explanation:

Following the formula, V=πr2h 3, you would get 100.53 with 6 as the height and 4 as the radius.

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

Work Shown:

2/3 of 15,000 = (2/3)*15000 = 10,000

This means 10,000 people take the shuttle bus to the park. If each person pays $5 to take the bus, then the city earns 5*10,000 = 50,000 dollar through this option.

The rest pay for parking, so 15,000-10,000 = 5,000 people pay for parking. At $25 each, this amounts to 25*5,000 = 125,000 dollars earned through this option.

Overall, the city earns a total of 50,000+125,000 = 175,000 dollars

Side note: this assumes that the remaining 5,000 people all take separate cars and no single car has more than one person. This is very unrealistic as there are likely to be families or carpools of some kind. So in reality, the answer shown above is an upper estimate of the total revenue.

Answer:

DOIN IT FOR THE BAG MY GUY

Step-by-step explanation:

Answer:

The awnser would be 9 because its under the sum of 10

Answer:

9 (see below)

Step-by-step explanation:

So, for a triangle, if you add any two sides, it will always be greater than the third side.

So if a triangle has sides of 1, 1, and 1:

1 + 1 > 1

1 + 1 > 1

1 + 1 > 1

So this is a triangle.

For a triangle with the sides of 3, 3, and 9:

3 + 9 > 3

9 + 3 > 3

3 + 3 > 9   (this one is not true)

So, these can't be the values of the sides of a triangle.

For your situation, you have a triangle with sides of 4, 6, and x.

We need to find out what x is, so:

4 + 6 > x

4 + x > 6

6 + x > 4

Isolate x to one side and simplify all the inequalities. You will get:

x < 10

x > 2

x > -2

So, -2 < x < 10.

If you plug in your answer choices, it will be 9.

Answer:

hi love u

Step-by-step explanation:

wanna talk its bruce

Answer:

Step-by-step explanation:

14.88 + x = 17.05

x = 17.05 - 14.88

x = 2.17

hope it helps

Answer:

Step-by-step explanation:

£2.25 X 60 = £135

135 - 125= £10

£10/125 x 100 = 8%

Answer:

the  students enroll is 4,200

Step-by-step explanation:

The computation of the students enroll is shown below:

= Number of students × applied percentage × enrolled percentage

= 30,000 × 40% × 35%

= 4,200

hence, the  students enroll is 4,200

Answer:

10 m / minute

Step-by-step explanation:

Starting position = North ; back to North gives a Displacement of 0 ; the from that position to 900 m south gives a final Displacement of 900

Displacement / time

Displacement = 900

Time = 9 minutes

900 / 9

= 10 m / minute

Answer:

a

Step-by-step explanation:

it is

Answer: 16m+8

Step-by-step explanation: 8 (2m + 1)

16m+8

Answer:

d. m<R = 128, m<S = 52, m<T = 128, m<U = 52

Step-by-step explanation:

The sum of interior angles in this rectangle is equal to 360°

6x - 4 + 2x + 8 + 2x + 8 + 6x -4 = 360° add like terms

16x + 8 = 360 subtract 8 from the both sides

16x = 352 divide both sides by 16

x = 22 now to find the value of each angle replace x with 22

there were 6 apples

this is simple math

Answer:

6

Step-by-step explanation:

Half of 6 is 3 and 3x2 will give you 6 if you plug it back in

hope this helps!

Answer: Drinks 6 pretzels 10

Step-by-step explanation:

It just is my g