1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alukav5142 [94]
3 years ago
7

Don't know this please help me

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

Step 5

Step-by-step explanation:

Step 5 was calulated without order of operation. it should be 2 + 10/2 = 2 + 5 = 7

You might be interested in
Will mark Brainliest! Find the equation of the line with slope −7 which goes through the point (−5,5).
Savatey [412]

Answer:

  y -5 = -7(x +5)

Step-by-step explanation:

The point-slope form of the equation for a line is usually used for this purpose. For point (h, k), the line with slope m through it is given by ...

  y -k = m(x -h)

Filling in the given numbers, you get the equation ...

  y -5 = -7(x +5)

_____

This can be rearranged to any of several other forms:

  y = -7x -30 . . . . . slope-intercept form

  7x + y = -30 . . . . standard form

  x/(-30/7) + y/(-30) = 1 . . . . . intercept form

4 0
3 years ago
Ellie’s bird feeder is shaped like a cone with a height of 25 in. and a radius of 3 in. Packages of bird seed are cylindrical an
Olegator [25]
3 in is the answer how old are you this is easy
6 0
3 years ago
The law of cosines is used to find the measure of Z.
Shtirlitz [24]

Answer:

C. Z=51^{\circ}

Step-by-step explanation:

We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.

Law of cosines: c^2=a^2+b^2-2ab\cdot \text{cos}(C), where, a, b and c are sides opposite to angles A, B and C respectively.

Upon substituting our given values in law of cosines, we will get:

16^2=19^2+18^2-2(19)(18)\cdot \text{cos}(Z)

256=361+324-684\cdot \text{cos}(Z)

256=685-684\cdot \text{cos}(Z)

256-685=685-685-684\cdot \text{cos}(Z)

-429=-684\cdot \text{cos}(Z)

\frac{-429}{-684}=\frac{-684\cdot \text{cos}(Z)}{-684}

0.627192982456=\text{cos}(Z)

\text{cos}(Z)=0.627192982456

Now, we will use inverse cosine or arc-cos to solve for angle Z as:

Z=\text{cos}^{-1}(0.627192982456)

Z=51.1566718^{\circ}

Z\approx 51^{\circ}

Therefore, the measure of angle Z is approximately 51 degrees.

6 0
3 years ago
Read 2 more answers
how many different burritos can be made when a customer chooses one item frm each category shown in the table
forsale [732]

Answer:13

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Is 3x to the power of 2 a function ?
OleMash [197]

Answer:

No

Step-by-step explanation:

Because in a function for every one x there is one y.

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 8,147 ÷ 24 with a remainder
    8·1 answer
  • What property is illustrated by the statement? 7+(4+4)=(7+4)+4
    14·2 answers
  • What is <br> 2x - 1 = 3/4x + 9
    8·1 answer
  • 7×300=7× blank hundreds
    5·1 answer
  • You ask your best friend to lend you ₹400 to buy your favourite toy. He says that he can lend you the money only if you give him
    7·2 answers
  • Alyssa accepted a new job at a company with a contract guaranteeing annual raises. Alyssa will get a raise of $4000 every year a
    14·1 answer
  • 4g+(6+2g)⋅3=<br><br> Simplify to create an equivalent expression.
    8·1 answer
  • What's 1/4 of 1/4 and +2
    15·1 answer
  • Rearrange the following formula to make c the subject.<br><br> a= b/c + 5
    15·1 answer
  • Cuba has a population of 1.1×10⁷,and and area of 1.1×10⁵ km². Barbados has a population of 2.8×10⁵,and an area of 4.3×10² km². I
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!