3 years ago

One angle of a right triangle measures 21°. What is the measure of the other acute angle?

2 answers:

8 0

A triangle has 3 sides and angles (obviously) and we are given that this triangle is a right triangle, which means one of the angle is 90 degrees. We are then given another angle is 21 degrees. Now we need to find the last angle a triangle adds up to 180 degrees. So 90+21=111 degrees. 180-111=69 degrees. (nice)
The answer is 69 degrees (nice)
(This is not troll)

Nataly [62]3 years ago

3 0

Answer:you could search this up

Step-by-step explanation:

You might be interested in

The radius of a circular park is 114 yd. To the nearest yard, what is the circumference of the park?

adell [148]

circumference = 2 x pi x r

using 3.14 for pi

2 x3.14x114=715.92

round to 716 yards

6 0

4 years ago

Read 2 more answers

Two numbers have a sum of 24<br> and a product of 143. What is the<br> smaller number?

jok3333 [9.3K]

Answer:

The smaller number is 11.

Step-by-step explanation:

11 + 13 = 24

11 x 13 = 143

Hope this helps!

4 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through (-3,-2) and (3,-1) Give your answer as a fraction

svlad2 [7]

Using slope formula, the slope will be 1/6

7 0

3 years ago

If 18,x+15,27 and 2x+7 are in proportion,find the value of x

ludmilkaskok [199]

Step-by-step explanation:

slndkndjakabssj

pasensya na god bless!!!!

7 0

3 years ago

Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression −4(6)n − 1.

Verizon [17]

Answer:

Step-by-step explanation:

The formula of a sum of terms of a gometric sequence:

$S_n=a_1\cdot\dfrac{1-r^n}{1-r}$

a₁ - first term

r - common ratio

We have

$a_n=-4(6)^{n-1}$

Calculate a₁. Put n = 1:

$a_1=-4(6)^{1-1}=-4(6)^0=-4(1)=-4$

Calculate the common ratio:

$r=\dfrac{a_{n+1}}{a_n}\\\\a_{n+1}=-4(6)^{n+1-1}=-4(6)^n\\\\r=\dfrac{-4(6)^n}{-4(6)^{n-1}}=6^n:6^{n-1}\\\\\text{use}\ a^n:a^m=a^{n-m}\\\\r=6^{n-(n-1)}=6^{n-n+1}=6^1=6$

$\text{Substitute}\ a_1=-4,\ n=7,\ r=6:\\\\S_7=-4\cdot\dfrac{1-6^7}{1-6}=-4\cdot\dfrac{1-279936}{-5}=-4\cdot\dfrac{-279935}{-5}=(-4)(55987)\\\\S_7=-223948$

7 0

4 years ago