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baherus [9]
3 years ago
12

Help me pls homework help give brainssss

Mathematics
1 answer:
krok68 [10]3 years ago
6 0

Hi there!

For number 13, it’ll be matching 11 and 12 since all of those are an X shape size.

For number 14, it would be just 9.

For number 15, it is 7 and 8 since it is all like a shape of 2 lines.

Number 10 would be number cause it’s not a parallel line, intersecting line, or a perpendicular line.

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Brett writes a number that is the same distance from O as TO 6on a number line, but in the opposite direction. Whatnumber did Br
Gennadij [26K]

since the number is going on the opposite it must be a negative integrer.

and since the number was 6 units away from 0, it should be the half point between the points.

number = 3

since it is going in the oppsoite direction it should be -3

4 0
9 months ago
1 A fishbowl shaped like a sphere is filled with water. The fishbowl has a
marysya [2.9K]

Answer:

2145 cubic inches

Step-by-step explanation:

formula for Volume of a sphere: 4/3·π·r³

V = 4/3 ·π ·(8)³

V = 4/3π · 512

V ≈ 2145

3 0
2 years ago
The sum of two complex numbers is −3 + 5i. If one of the complex numbers is 1−8i, which answer choice below is the other number?
AnnyKZ [126]

Answer:

C

Solution

For a complex number written in the form a + bi, a is called the real part of the complex number and b is called the imaginary part. The sum of two complex numbers, a + bi and c + di, is found by adding real parts and imaginary parts, respectively, that is, (a + bi) + (c + di) = (a + c) + (b + d)i. Therefore, the sum of 2 + 3i and 4 + 8i is (2 + 4) + (3 + 8)i = 6 + 11i.

Choice A is incorrect and is the result of disregarding i and adding all parts of the two complex numbers together, 2 + 3 + 4 + 8 = 17. Choice B is incorrect and is the result of adding all parts of the two complex numbers together and multiplying the sum by i. Choice D is incorrect and is the result of multiplying the real parts and imaginary parts of the two complex numbers, (2)(4) = 8 and (3)(8) = 24, instead of adding those parts together.

6 0
2 years ago
A Rectangle with sides 100m and 50m. Person B and Person A start walking in the opposite direction at the same point with veloci
Maurinko [17]

Answer:

It takes takes them 31.67 secs to meet after Person A starts walking

OR

34.67 secs after Person B starts walking

Step-by-step explanation:

First, we will find the perimeter of the rectangle

From,

Perimeter of rectangle = 2 (l + b)

Where l is the length

and b is the breadth

From the question, l = 100m

and b = 50m

Hence,

Perimeter of the rectangle = 2 (100+50)

= 2(150) = 300m

Hence, the perimeter of the rectangle is 300m

This is the total distance that will be covered by both persons by the time they meet.

Let the distance covered by person A be S_{1}

and the distance covered by person B be S_{2}

We can write that

S_{1} + S_{2} = 300m

Velocity of person A, V_{A} = 4 m/s

and velocity of person B, V_{B} = 5 m/s

From the question, Person A starts walking 3 seconds after person B,

This means, if person A spends t secs before they meet, then person B would spend (3 + t) secs.

For Person A,

Velocity = 4 m/s

Time = t secs

Distance = S_{1}

From,

Velocity = \frac{Distance}{Time}

Then,

Distance = Velocity \times time

S_{1} = 4 \times t

S_{1} = 4t ...... (1)

For Person B

Velocity = 5 m/s

Time = (t + 3) secs

Distance = S_{2}

Also, from

Distance = Velocity \times time

S_{2} = 5 \times (3+t)

S_{2} = 5(3+t) ...... (2)

Recall that, S_{1} + S_{2} = 300m

Then, S_{2} = 300m - S_{1}

We can then write that,

300m - S_{1} = 5(3+t)

Then,

S_{1} = 300 - 5(3+t) ..... (3)

Equating equations (1) and (3), we get

300 - 5(3+t) = 4t

300 - 15 -5t = 4t\\9t = 285\\t = \frac{285}{9}\\

t = 31.67 secs

This is the time spent by Person A

Hence, it takes takes them 31.67 secs to meet after Person A starts walking OR

34.67 secs after Person B starts walking

3 0
3 years ago
Mr. Salvi makes car payments of $489.95 each month.
SIZIF [17.4K]

Answer:

$5879.4

Step-by-step explanation:

the monthly expense of the car is $489.95

no. of months=12

therefore, the expense= 489.95×12

=$5879.4

6 0
3 years ago
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