Evaluate the expression.

Evaluate The Expression.

Answers

Answer 1

Step-by-step explanation:

[tex]{ \huge{ \{}}{ \rm{ [(30 - 60) \div ( - 30)] {}^{2} - 15{ \huge{ \}}} \div ( - 7) }} \\ \\ \dashrightarrow \: { \huge{ \{}}{ \rm{[( - 30) \div ( - 30)] {}^{2}{ \huge{ \}}} \div ( - 7) }} \\ \\ \dashrightarrow \: { \huge{ \{}}{ \rm{[1] {}^{2} { \huge{ \}}} \div ( - 7)}} \\ \\ \dashrightarrow \: { \rm{1 \div ( - 7)}} \\ \\ { \boxed{ \boxed{ \rm{ \: - \frac{1}{7} \: \: }}}}[/tex]

Answer 2
{ [(30-60)÷(-30)]² -15 }÷(-7)= { [ -30÷(-30)]² -15 }÷(-7)= { [1]² -15 }÷(-7)= { 1-15 }÷(-7)= -14÷(-7)= 2

please mark this answer as brainlist


Related Questions

Who knows the answer for this problem

Answers

- Each friend has 10 nails to paint

- There are 8 friends

- Jackie finished painting 4 friend's nails

If there are 8 friends, and each friend has 10 nails to paint, then there are 80 nails that need to be painted in total.

Jackie finished painting 40 nails.

So the math sentence will be:

80 - 40 = 40

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

Jackie needs to paint 40 more nails.

Find the product. Simplify.
(a + 1)(a –5)=

Answers

Answer:

[tex](a + 1)(a - 5) \\ {a}^{2} - 5a + a- 5 \\ {a}^{2} - 4 a- 5[/tex]

An engineer traveled 150 mi by car and then an additional 630 mi by plane. The rate of the plane was three times the rate of the car. The total trip took 8 h. Find the rate of the car.

Answers

Answer:

Step-by-step explanation:

150 mile by car            x mph

630 mile by plane      3x mph

Total travel time equal 8 hours

    150 / x     mile / (mile / hour)   = hour

    630 / 3x  mile / (mile / hour)   = hour

    150/x + 630/3x  = 8 hours

    450/3x + 630/3x = 8 hours

    450  + 630  = 8(3x)  = 24x

         1080  =  24x

             45  =  x    the rate of the car is 45 mph

explain how sandbars in the ocean are formed.

Answers

Answer:

Sandbars begin forming underwater. As waves break, this pulls material from the shoreline, migrating further into the ocean. During heavy storms, large waves can build sandbars far from shore, until they rise above the water's surface.

Step-by-step explanation:

Water brings sand and other sediment to the surface and creates a strip of land that lays between water.

plz crown

Formulate the null and alternative hypotheses that can be used to determine whether the school is losing money out of the raffle. Note that the issue is whether the school is losing money, not whether the school is breaking even. Please think about what the implication is when formulating the null and alternative hypotheses.

Answers

Answer:

https://brainly.com/question/23195326

Step-by-step explanation:

Which equations are true for the values of x, y, and z? Select three options.
650
z
x
y
Ox+65º = 180°
OY= 65°
3x = 65°

Answers

Answer:

A) x + 65 = 180

B) x = z

C) y = 65

Step-by-step explanation:

Ella is making a kite in the shape of a triangular prism, but with both ends open. Which net shows the faces that
would be used to calculate surface area shaded?

Answers

Answer: the answer is the second one :)

Step-by-step explanation:

The net is shown in the picture that can used to calculate surface area shaded.

What is quadrilateral?

It is defined as the four-sided polygon in geometry having four edges and four corners.

We know that kite is quadrilateral, having:

Two pairs of congruent sides.It has one pair of opposite congruent angles.The diagonals of a kite are perpendicular.One diagonal is bisected.The top and bottom angles are bisected butKite does not have congruent diagonals.

As we have given that, Ella is making a kite in the shape of a triangular prism, but with both ends open.

Thus, the net is shown in the picture that can used to calculate surface area shaded.

Learn more about the quadrilateral here:

brainly.com/question/6321910

#SPJ5

PLEASE HELP- ITS URGENT- ​

Answers

Answer:

x = 20°

Step-by-step explanation:

here's your solution

=>. we know that, sum of two opposite interior angle is equal to one exterior

=> (3x)° + (3x -20)° = (7x - 40)°

=> 6x - 20° = 7x - 40

=> - x = - 20

=> x = 20

hope it helps

Answer:

20°

Step-by-step explanation:

C.20 is the correct answer.

21
х
15
X
(Round to the nearest tenth)

Answers

Answer:

that would be 6

x = 6

Step-by-step explanation:

Dulce the dog loves to go on walks. Each morning she walks for 45minutes.She also goes for a 20 minute walk at lunch, and an evening stroll for 1 hour and 30 minutes. How long does she walk each day?

Answers

Answer:

2 hour and 35 minutes

Step-by-step explanation:

45 +20 = hour and 5 minutes

65+90=155 or 2 hour and 35 minutes

2 hrs and 35 minutes

Hey i need help with this

Answers

Answer:

The x-intercepts are 1 and 3

The y-intercept is 3

The vertex is (2,-1)

The line of symmetry is x=2

Step-by-step explanation:

To find the x-intercepts, find where the graph intersects the x-axis, or the horizontal line. To find the y-intercept, find where the graph intersects the y-axis, or the vertical line. To find the vertex, find the coordinate where the graph is at its lowest point (or highest if it is flipped upside down). To find the line of symmetry, simple use the x-coordinate of the vertex and say x= (the x-coordinate)

Bradley's bike has an odometer, which shows how far he rides. Bradley rode 2.7 miles on
Monday, 2.4 miles on Tuesday, and 2.8 miles on Wednesday.
How many days did Bradley ride more than 2 miles?

Answers

Answer:

7.9

Step-by-step explanation:

I added 2.7 + 2.4 + 2.8, lmk if it's wrong.

The length of a rectangle is 16 meters and the width is 3 meters. Find the area.

Answers

Answer:

16x3= 48 so the answer is 48m^2

Alice earns M dollars for working 40 hours in a week.Which expression represents the amount of money alice earns each hour?
A.40M
B.40+M
C.40/M
D.M/40​

Answers

Answer:

m/40

Step-by-step explanation:

Find an equation of the line that goes through the points (-9,62) and (5,-22).

Answers

Answer:

y = -6 x + 8 (I think)

Step-by-step explanation:

1- “Dados provenientes de 2.783 homens e 5.018 mulheres maiores de 65 anos de idade da Pesquisa Nacional de Saúde dos Estados Unidos de 1990 determinaram a prevalência de atividade física regular, que naquele estudo foi definida como a participação em atividades físicas no tempo livre por três ou mais vezes por semana e por mais de 30 minutos nas últimas duas semanas. Com esses parâmetros os autores encontraram uma prevalência de atividade física regular de 37% no sexo masculino e 24% no sexo feminino.” Quantos idosos do sexo masculino e do sexo feminino praticam atividade física regular?

Answers

Answer:

no hable spanish

Step-by-step explanation:

A gym charges $25 per month plus extra four dollars to swim in a pool for an hour if a member only has $45 to spend each month at most how many hours can’t remember swim

Answers

Answer:

5 hours

Step-by-step explanation:

So the set fee is 25. 45-25 = 20. Now, 4 dollars an hour. 20/4 = 5, so 5 hours

The diameter of a circle is 10 cm find its circumference in terms on pi

Answers

Answer:

31.41593 cm

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving forC

C=πd=π·10≈31.41593cm

What’s 50 divided by 50?

Answers

Answer:

69 nah i'm kidding 4069 nah i'm kidding its 40 nah butt fr its 0

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

50 fits in 50 once

50 ÷ 50 = 1

50 × 1 = 50

What is area?


The space inside a circle.


The distance across a circle.


The distance around a circle.

Answers

Answer:

The space inside a circle

Step-by-step explanation:

Examine each set of functions and determine which has the greater rate of change, if either. Explain your reason.

Answers

Answer:

The Spotted Cows delivery service has a greater rate of change.

Explanation

The Spotted Cows function is: y = 2.8x + 2

Dairy Farms function is: y = 2.1x + 10

I have graphed these two functions to determine which has a greater rate of change. The red line represents the Spotted Cow service while the blue represents the Dairy Farms service. On the graph you can see that the red line intersects and shifts above the blue line, meaning the rate increases at a higher rate than the blue.

Hope this helps!

101
Figure ABCD is reflected across the x-axis.
What are the coordinates of A'B'C', and D',
Enter your answer by filling in the boxes.
9
7
5
A'D
2
1
4
B's
C'ad
D'

Answers

Answer:

私は人間の前に神の弓です

翻訳してください

Step-by-step explanation:

What is 96% of 675 pls exxplain

Answers

Answer:

648

Step-by-step explanation:

96 percent *675 =

(96:100)*675 =

(96*675):100 =

64800:100 = 648

Answer:

27

Step-by-step explanation:

I can't explain sorry

What integer is the opposite of 32 degrees Celsius below zero?

Answers

Answer:

-32?

Step-by-step explanation:

PLEASE HELP ASAP 20 POINTS AND BRAINLIEST IF RIGHT!

(03.01 LC)
The leg of a right triangle is 2 units and the hypotenuse is 5 units. What is the length, in units, of the other leg of the triangle?

A.) 3
B.) Square root of 21
C.) Square root of 29
D.) 7

Answers

I think it is C, sqaure root of 29
The answer is B. Square root of 21.

There are 20 children at a library. Six of the children have a averahe age of 5 years. The remaining children have a sverage age of 8 years. What is the average age of the children at the library?​

Answers

Answer: The average age of the children at the library is 7.1 years.

Step-by-step explanation:

Given,

Out of 20 children, six of the children have an average age of 5 years,

Thus, the sum of the ages of 6 students = 5 × 6 = 30

( Total sum of observations = Their Average × Total numbers of the observations )

Now, remaining students = 20 - 6 = 14,

Since, the remaining children have an average age of 8 years.

Thus, the sum of the ages of 14 students = 14 × 8 = 112,

Total sum of the ages of 20 students = 30 + 112 = 142

=142/20

= 7.1 years

Answer:

The average is 7.1 years!

Step-by-step explanation:

6 children = average of 5 years

14 children = average of 8 years

Help with this question pls & graph on MY graph pls

Answers

Answer:

I cant graph it on yours, but hope this helps

Step-by-step explanation:

if the length of segment A'B' is 12 units, what is the scale factor of the dilation?​

Answers

Answer:

if the length of segment A'B' is 12 units, what is the scale factor of the dilation?

Step-by-step explanation:

What is the outlier for 437,456,513,650,893,954,1018,1038,1117, and 1465

Answers

1465 is the answer :-)

Anyone know how to answer this question

Answers

its b:)! hoped this helped<3
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