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
saw5 [17]
3 years ago
9

HELP QUICK PLEASEE THANKS

Mathematics
2 answers:
ZanzabumX [31]3 years ago
8 0
(-9)+(-4) = -13

the answer is C
Ratling [72]3 years ago
5 0
The answer would be -13
You might be interested in
What part of a<br>a dozen is 8?​
Murljashka [212]

Answer:

\frac{2}{3}

or

0.67

Step-by-step explanation:

a dozen is 12

12/4 = 3

8/4 = 2

8 is 2/3 of a dozen(12)

2/ 3 = 0.66666666666667 which is about 0.67

6 0
2 years ago
Read 2 more answers
Computer keyboard failures are due to faulty electrical connects (8%) or mechanical defects (92%). Mechanical defects are relate
sdas [7]

Solution :

Faulty electrical connects = P(A) = 0.80

Mechanical defects = P(B) = 0.92

Mechanical defects are related to loose keys = P(C/B) = 0.27

Improper assembly = P(D/B) = 0.73

Defective wires  = P(E/A) = 0.35

Improper connections = P(F/A) = 0.13

Poorly welded wires = P(G/A) = 0.52

Now, the probability due to loose keys = 0.27 x 0.92 = 0.2484

Improperly connected = 0.13 x 0.80 = 0.1040

Poorly welded wires = 0.52 x 0.80 = 0.4160

So, the probability that a failure is due to improperly connected or poorly welded wires = 0.1040 + 0.4160

                       = 0.5200

8 0
2 years ago
How do I know if an equation has one solution no solution or infinitely many solutions?
Lemur [1.5K]

Answer:  If the equation ends with a false statement (ex: 0=3) then you know that there's no solution. If the equation ends with a true statement (ex: 2=2) then you know that there's infinitely many solutions or all real numbers.

Step-by-step explanation:

3 0
2 years ago
please help as soon as possible-Solve the right triangle shown in the figure. WIll mark brainliest to first correct answer
Dennis_Churaev [7]

Answer:

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

Step-by-step explanation:

From my understanding, we have to find angle A, angle B and side AB.

<u>Step 1: Find side AB</u>

<em>AB can be solved through the Pythagoras theorem.</em>

<em>c² = a² + b²</em>

<em>c² = 2.7² + 1.1²</em>

<em>c² = 8.5</em>

<em>c = √8.5</em>

c = 2.9 cm

<u>Step 2: Find angle A</u>

<em>Angle A can be found through tan formula</em>

<em>tan (angle) = opposite/adjacent</em>

<em>tan (angle A) = BC/AC</em>

<em>tan (angle A) = 2.7/1.1</em>

<em>Angle A = tan inverse (2.7/1.1)</em>

Angle A = 68°

<u>Step 3: Find angle B</u>

<em>All 3 angles of a triangle are equal to 180°</em>

<em>Angle A + Angle B + Angle C = 180°</em>

<em>68 + B + 90 = 180°</em>

Angle B = 22°

option a is the correct answer; ∠A = 68°, ∠B = 22°, AB = 2.9 cm

!!

6 0
3 years ago
Find the dimensions of the rectangular box with largest volume if the total surface area is given as 4 cm2. (Let x, y, and z be
Scorpion4ik [409]

Answer:

The dimensions of the rectangular box, x = y = z = 0.817 cm

Step-by-step explanation:

Given;

total surface area of the rectangular box or cuboid = 4 cm²

A rectangular box with largest volume  is a cube.

The total surface area of a cube = 6 times  square of one edge length.

Let the edge length = given dimensions,  x, y, z

x = y = z

6x² = 4

x² = 4/6

x =\sqrt{\frac{4}{6} }\\\\ x = \frac{2}{\sqrt{6} } \ cm \ = 0.817 \ cm

Therefore, the dimensions of the rectangular box, x = y = z = 0.817 cm

7 0
3 years ago
Other questions:
  • Determine the range of the function: (0,2)(2,4)(4,6)(6,8)(8,10) Options: A) y&lt;_10 B) {2,4,6,8,10} C) 2&lt;_y&lt;_10 D) {0,2,4
    8·1 answer
  • The speed of a car is increased at a constant rate. If the speed is increased by 54m/s over a 6 second period what is the accele
    13·1 answer
  • The circumference of a circle is 6.28. What is the area of the circle?
    11·1 answer
  • Lee bought a 7 kilogram can of raisins for $6.50. What is the unit price? Round answrr to the nearest cent.
    8·1 answer
  • What is the value if x ?
    12·1 answer
  • What is the slope of the line shown?
    11·2 answers
  • What is the expanded form for 11,760,825
    8·1 answer
  • Write an equation in slope-intercept form for the line perpendicular to y=−4x+1 that passes through the point (−7,1)
    13·1 answer
  • according to a label there are 25 calories per turkey lunchmeat. How many calories are there in 2.5 servings?​
    14·2 answers
  • What is the value of the expression (x – y)2 when x = 5 and y = -1
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!