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vfiekz [6]
2 years ago
6

Find the area of this triangle

Mathematics
2 answers:
marin [14]2 years ago
5 0

Answer:

54 \:  {in}^{2}

Step-by-step explanation:

Area calculation:

\frac{9 \times 12}{2}  = 54 \:  {in}^{2}

Sonja [21]2 years ago
3 0

Answer:

A = 54 in^2

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh where b is the base and h is the height

A = 1/2 (12)(9)

A = 54 in^2

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Evaluate the function k(x)=5 for the given value of x. Simplify your answer.
coldgirl [10]

Answer:

5

Step-by-step explanation:

k(x)=5 says I'm 5 no matter the value of x...

So therefore

k(-4)=5

k(56)=5

k(66378)=5

k(whatever)=5

k(x) is constantly 5 for whatever input x.

4 0
2 years ago
The equation c= 0.25n can be used to find the cost (c) of buying n number of apples.
aksik [14]

Answer:

(a) The constant of proportionality is 0.25

(b) 1 apple = $0.25

(c) $3 = 12 apples

Step-by-step explanation:

Given

c= 0.25n

Solving (a): The constant of proportionality;

For an equation:

c=kn

Where

k = constant of proportionality

By comparing: c=kn to c= 0.25n

k = 0.25

Hence, the constant of proportionality is 0.25

Solving (b): What information does k = 0.25 gives.

It represents the unit rate.

<em>So, it means that 1 apple costs $0.25</em>

<em></em>

Solving (c): Number of apples for $3.

This means that c = 3

Substitute 3 for c in c= 0.25n

3 = 0.25n

Make n the subject

n = \frac{3}{0.25}

n = 12

7 0
3 years ago
Find the sum of -2 + i and its complex conjugate.<br> Write your answer in the form a + bi.
Anuta_ua [19.1K]

Answer:

- 4

Step-by-step explanation:

The conjugate of - 2 + i is - 2 - i, thus

- 2 + i + (- 2) - i

= - 2 + i - 2 - i ← collect like terms

= - 4 ← in the form a + bi with b = 0

7 0
2 years ago
Need help with 4 6 and 8
nirvana33 [79]
Hello! I can help you!

4. So we are talking about 15 miles a day for 5 days each week. 15 * 5 is 75. That's 75 miles in one week. He continues doing this for 8 weeks. Now, all we have to do is multiply 75 by 8 to get the total amount of miles. 75 * 8 is 600. There. Noah bikes 600 miles in 8 weeks.

6. We are rounded to the nearest hundred. If the number behind the digit we are rounding is 5 or more, the number goes up. If it's 4 or less, the number goes down. 329,167 has 1 one in the hundreds place. 6 is in the tens place behind it. 6 is more than 5, so we round up. The number rounded to the nearest hundred is 329,200.

8. Okay. So 132 are sold in the summer and 5 times that amount is sold in the winter. The equation would be this: 132 * 5 = s. The variable s represents the snowboards. All you have to do is multiply the numbers. 132 * 5 is 660. There. The store sells 660 snowboards in the winter.
6 0
2 years ago
Sarah cut off 1/8 of 48 inch piece of ribbon. Jane cut off 1/9 of a 36 inch piece of ribbon. They compare their cut piece. Whose
Molodets [167]
1/8 of 48 is 6, so Sarah cut 6 inches. 1/9 of 36 is 4, so Jane cut 4 inches. 6 is greater than 4, therefore, Sarah's piece is longer by 2 inches.
7 0
3 years ago
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