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
Sergeeva-Olga [200]
3 years ago
7

7. Which expresses the calculation add 7 to b? A b +7 B - 7 © 7b D 6+7

Mathematics
1 answer:
nikdorinn [45]3 years ago
3 0

Answer:

b =7

Step-by-step explanation:

You might be interested in
Find the equation of the ellipse with the following properties.
zmey [24]

Answer:

The equation of ellipse is \frac{x^2}{25}+\frac{y^2}{9}=1.

Step-by-step explanation:

The center of ellipse is origin because the ellipse has foci at (4, 0) and (-4, 0); y-intercepts (0, 3) and (0, -3).

The general equation of an ellipse is

\frac{x^2}{a^2}+\frac{y^2}{b^2}=1

Where, a is major axis and b is minor.

The y-intercepts are (0, 3) and (0, -3). So, the value of b is 3.

The foci of ellipse is (\pm c,0).The relation between foci and major, minor axis is

c^2=a^2-b^2

(4)^2=a^2-(3)^2

16=a^2-9

a^2=25

a=5

The equation of ellipse is

\frac{x^2}{5^2}+\frac{y^2}{3^2}=1

\frac{x^2}{25}+\frac{y^2}{9}=1

8 0
3 years ago
HELP ASAP! WILL MARK BRAINLIEST
Digiron [165]
Question 1
Answer
0.46 : rational(/ ); irrational(x);
Solving Steps

Question 2
Answer
1100 : rational(/): irrational(x);
Solving Steps
Categorize the number :

Question 3
Answer
-16 : rational(V); irrational(x);
Solving Steps
Categorize the number:
-16 : rational(/); irrational(x);


Question 4

Answer
V21: rational (×); irrational(r);
Solving Steps
Categorize the number
V21 : rational(×): irrational():
3 0
3 years ago
Find the volume of a pyramid with a square base, where the side length of the base is
ValentinkaMS [17]

Answer:

<h2>1529.4 m³</h2>

Step-by-step explanation:

Volume of a pyramid can be found by using the formula

v =  \frac{1}{3}  \times a \times h \\

a is the area of the base

h is the height

Since the base is a square we have

v =  \frac{1}{3}  \times  {15.3}^{2}  \times 19.6 \\  = 78.03 \times 19.6 \\  = 1529.388

We have the final answer as

<h3>1529.4 m³</h3>

Hope this helps you

3 0
3 years ago
A ladder is leaning against a building.The distance from the bottom of the ladder to the building is 6ft shorter than the length
Akimi4 [234]

Answer:

15 ft

Step-by-step explanation:

Hi, the illustration for the problem is a right triangle with:

hypotenuse (C)= the length of the ladder = L

horizontal side(A) = distance from bottom of the ladder to the building = L - 6

vertical side(B) = distance from the top of the ladder to the bottom of the building = L - 3

So, we can use Pythagoras formula:

A2 +B2= C2

(L – 6 )² + (L-3)² = L²

L²-12L+36+L²-6L+9 =L²

L2 -18L+45 =0

APPLYING QUADRATIC FORMULA WE OBTAIN:

L =15 OR L=3

If L=3

Vertical side = L-3 = 0 (Length can´t be 0)

So L=15

6 0
4 years ago
How to find the number of days between two dates?
VMariaS [17]
So one date can be berween 12_6, so twelve or six hours you multaply it by another witch if the first date was 12+12so what does that = and then th t would be

the second date so it could be nother 12+12 day and night so you count between the hours hoped I helped plz mark as brainy thx
5 0
3 years ago
Other questions:
  • The length of a rectangle is 7 inches less than its width. The perimeter of the
    6·1 answer
  • Write a picture that shows eight sixths more than six six
    14·1 answer
  • Determine the probability. At a certain college, there are 600 freshman, 400 sophomores, 300 juniors, and 200 seniors. If one st
    10·1 answer
  • What is the answer to this equation 2 + 1/6y = 3x + 4
    14·2 answers
  • You don’t need to do it just explain the process of 10 please
    7·1 answer
  • Henry can write 5 1\4 pages of his novel in 3 hours.
    13·1 answer
  • 4x2 + 3x2 = 14 Solve to three digits?
    8·1 answer
  • Need help with this math. It’s either C or D? Please help
    7·2 answers
  • Seven days ago, the gas tank on Rosa's vehicle was filled with
    10·1 answer
  • HELP SHOW WORK PLEASE
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!