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
seraphim [82]
3 years ago
14

A student solved the following problem.

Mathematics
1 answer:
siniylev [52]3 years ago
8 0

Answer:

All of them are wrong. Because the solution is t=-15.

Step-by-step explanation:

t+7=-8

t=-8-7

t=-15

You might be interested in
what are the hypothesis and conclusion of the following statement write it as a conditional residents of key west live in florid
vladimir1956 [14]
In conditional form, the hypothesis is "if they live in key west" and the conclusion is "then they live in florida"
5 0
3 years ago
What is the product 4n/4n-4 n-1/n+1
olga_2 [115]
4n/4n-4 × n-1/n+1
= 4n(n-1)/(4n-4)(n+1)
= (4n^2 - 4n)/(4n^2 + 4n - 4n-4)
= (4n^2 - 4n)/(4n^2 - 4)
= 4(n^2 - n)/4(n^2 - 1)
=(n^2 - n)/(n^2 - 1)
5 0
4 years ago
Margie needs to know the square footage for the first floor of the condo her client wants to make an offer on. The kitchen is 10
rodikova [14]

Answer: the total square footage is

850 ft³

Step-by-step explanation:

The kitchen is 10 feet by 15 feet. This means that the volume of the kitchen would be

10 × 15 = 150 ft³

The living/dining combo is 20 feet by 25 feet. This means that the volume of the living/dining combo would be

20 × 25 = 500 ft³

The office and sunroom are each 10 feet by 10 feet. This means that the volume of the office would be

10 × 10 = 100 ft³

Also, the volume of the sunroom would be

10 × 10 = 100 ft³

Therefore, the total square footage is

150 + 500 + 100 + 100 = 850 ft³

3 0
3 years ago
Using significant digits calculate (3.89 + 0.046) x 7.221
enyata [817]
The full answer is 28.421856
8 0
3 years ago
From her window, Carmella looks up to the top of a neighboring building at an angle of 46°. Her
Vinil7 [7]

Answer:

270.3\ ft

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ADE

Find the value of h1

See the attached figure

h1=AD

tan(25\°)=\frac{h_1}{180}

Solve for h1

h_1=(180)tan(25\°)\\h_1=83.94\ ft

step 2

In the right triangle ABC

Find the value of h2

See the attached figure

h2=BC

tan(46\°)=\frac{h_2}{180}

Solve for h2

h_2=(180)tan(46\°)\\h_2=186.40\ ft

step 3

Find the height of the neighboring building

we know that

The height of the neighboring building is equal to

h=h_1+h_2

substitute the values

h=83.94+186.40=270.34\ ft

Round to the nearest tenth of a foot

h=270.3\ ft

7 0
3 years ago
Other questions:
  • 2. How many solutions does the equation 3x-2x + 4 = 2 +x+2 have?
    7·1 answer
  • What is £1871 minus 20%?
    9·1 answer
  • The coffee beans from 14 trees are required to produce 7.7 kg of coffee. This is the
    9·1 answer
  • PLZ CHECK MY ANSWER. Round your answer to the nearest tenth.
    15·1 answer
  • Please help as quickly as possible (20pts)
    8·1 answer
  • PLS SOLVE THIS!!`1/2p + 7= 3/4p + 9
    12·1 answer
  • Is 3x+4y-7 an algebraic expression?
    10·2 answers
  • You are shopping for school supplies and want to decide where you should buy pencils from. SupplyCo sells a 10 pack of pencils f
    7·1 answer
  • Good afternoon and god bless guys!! Does anyone knows the answer to this?
    8·1 answer
  • PLEASE HELP ASAP, I WILL GIVE 40 POINTS IF THE RIGHT ANSWER, AND BRAINLEST, ASAP
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!