All categories

3 years ago

Find the area. Will mark brainliest.

Mathematics

2 answers:

11Alexandr11 [23.1K]3 years ago

7 0

Answer:

40 sq cm

Step-by-step explanation:

This

area = length times width so 5 times 8 is 40

Rudik [331]3 years ago

7 0

Answer:

The area of the shape is C) $40cm^{2}$

Step-by-step explanation:

The formula for the area of a rectangle is : $length*width\\$

To work out the area you would simply multiply the length of 8 by the width of 5, this gives you 40cm squared.

1) Multiply 8 by 5.

$8*5=40cm^{2}$

You might be interested in

If a circle has a diameter of 23 inches, then the radius will be_____?

Troyanec [42]

Answer:

half. what is half of 23? 11.5 inches

Step-by-step explanation:

3 0

3 years ago

Identify the quotient in the form a + bi. HELP ASAP PLEASE!!

Step2247 [10]

Solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Step-by-step explanation:

We need to solve the expression: $\frac{4-5i}{2+3i}$

Multiplying and dividing by 2-3i

$=\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}\\=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,know\,\, i^2=-1\\=\frac{8-12i-10i+15(-1)}{4-9(-1)}\\=\frac{8-15-12i-10i}{4+9}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}$

So, solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Keywords: Complex numbers

Learn more about Complex numbers at:

#learnwithBrainly

8 0

3 years ago

When a number is added to six times its square, the result is twelve. Find the number.

7nadin3 [17]

Let's represent our number as x.
x is being added to 6 * x², and it equals 12
$x + 6x^{2}=12\\6x^{2}+x-12=0$
Factor:
$6x^{2}+x-12=0\\(2x+3)(3x-4)=0$
Solve for x:
$(2x+3)=0\\2x=-3\\x=\frac{-3}{2}\\\\(3x-4)=0\\3x=4\\x=\frac{4}{3}$

Therefore, x = -3/2 and 4/3.

6 0

3 years ago

Read 2 more answers

Which of the following sets shows all the numbers from the set {1, 2.5, 3, 4.5, 5} that make the inequality 3a + 4 ≥ 13 true?

zmey [24]

3(1)+4≥ 13
7≥ 13
No

3(2.5)+4≥ 13
11.5≥ 13
No

3(3)+4≥ 13
13≥ 13
Yes

{3, 4.5, 5}

3 0

3 years ago

Read 2 more answers

What is the value of b^2 - 4ac for the following equation?

WINSTONCH [101]

(7)^2-4(5)(-6)=

49+120=169 is the answer

5 0

4 years ago