All categories

3 years ago

Name a pair of complementary angles

Mathematics

1 answer:

Llana [10]3 years ago

3 0

Angles 2,1 and 4,5 are complementary angles because the angles have a sum of 90 degrees.

You might be interested in

A tree trunk has a diameter 50cm and a height 7.9m.

____ [38]

Answer:

Ratio = 5:79.

Step-by-step explanation:

Convert the height to cms:

Height of the tree = 7.9 * 100 = 790 cm

Ratio = 50 : 790

Divide both values by 10;

Ratio = 5:79.

8 0

4 years ago

What is the probability that the spinner lands on an even number or on the unshaded section? one-fifth two-fifths three-fifths f

Tasya [4]

The probability that the spinner lands on an even number or on the unshaded section is; 3/5

<h3>How to find the probability?</h3>

From the spinner attached, we see that the number of sections on the spinner is 5 sections.

Now, we can also see that;

Number of even numbers section = 2

Number of shaded sections = 1

Thus, probability that the spinner lands on an even number or on the unshaded section is;

P(even number or unshaded section) = (2 + 1)/5 = 3/5

Read more about Probability at; brainly.com/question/24756209

#SPJ1

5 0

2 years ago

What's 10 times as much as 140

Radda [10]

14 because 10*14 is 140.

5 0

4 years ago

.Solve for x 5 x − 1 = 6 x − 9

Ostrovityanka [42]

Answer:

x = 8

Step-by-step explanation:

Step 1: Subtract 5x from both sides

-1 = x - 9

Step 2: Add 9 to both sides

x = 8

5 0

4 years ago

Read 2 more answers

Find the sum of 46 + 42 +38... +(-446) +(-450)

schepotkina [342]

The sum of the given sequence is -24846.

<u>Step-by-step explanation:</u>

The given Arithmetic sequence is 46 + 42 +38... +(-446) +(-450).

The first term of the sequence = 46
The last term of the sequence = -450
The common difference ⇒ 46 - 42 = 4

<u>To find the number of terms in the sequence :</u>

The formula used is $n = (\frac{a_{n}-a_{1}} {d})+1$

where,

n is the number of terms.
$a_{n}$ is the late term which is -450.
$a_{1}$ is the first term which is 46.
d is the common difference which is 4.

Therefore, $n =(\frac{-450-46}{4}) +1$

⇒ $n = (\frac{-496}{4}) + 1$

⇒ $n = -124 + 1$

⇒ $n = -123$

⇒ n = 123, since n cannot be negative.

∴ The number of terms, n = 123.

<u>To find the sum of the arithmetic progression :</u>

The formula used is $S = \frac{n}{2}(a_{1} + a_{n} )$

where,

S is the sum of the sequence.
$a_{1}$ is the first term which is 46.
$a_{n}$ is the late term which is -450.

Therefore, $S = \frac{123}{2}(46+ (-450))$

⇒ $S = \frac{123}{2}(-404)$

⇒ $S = 123 \times -202$

⇒ $S = -24846$

∴ The sum of the given sequence is -24846.

6 0

3 years ago