2 years ago

1. find the measure of each angle

Mathematics

1 answer:

Elanso [62]2 years ago

4 0

Step-by-step explanation:

you need to solve this equation:

(3x-5)+(10x-7)=180° because they are inner angles so their sum is 180°

You might be interested in

Beth said the distance to school is 2.8 km. The actual distance is 3.5 km. What is the percent error

Rom4ik [11]

Answer:

20%

Step-by-step explanation: The percent of error formula is |(theoretical value-actual value)/actual value|=percent of error. Substitute the values in. |(2.8-3.5)/3.5|=|(-0.7)/3.5|=0.2. The percent equal to 0.2 is 20%.

3 0

2 years ago

Use the equation below to find a, if b = 5 and c = 12<br><br> a = 27 - b - c

vovikov84 [41]

Answer: 10

a=27-5-12=10

5 0

2 years ago

Read 2 more answers

If x = 3 and y = 7 , evaluate the following expression: 20 − ( 3 y − 4 x )

xenn [34]

Answer:

20-3(7)-4(3)

20-21-12

-13

6 0

2 years ago

Read 2 more answers

A number, x, rounded to 1 decimal place is 3.7<br>Write down the error interval for x.

alekssr [168]

Answer:

$3.65 \leqslant x \leqslant 3.75$

Step-by-step explanation:

The error in rounding a number is half of the unit of measure.

The number was rounded to the nearest 0.1 unit so the error is 1/2×0.1, which equals 0.05.

Now we add 3.7 and 0.05, which equals 3.75 and we also take 3.7 - 0.05, which equals 3.65

So, the error interval is:

$3.65 \leqslant x \leqslant 3.75$

4 0

2 years ago

The length of a diagonal of a cube with edge length 25cm

elena-s [515]

Let's take any edge length l. The diagonal has length $l\sqrt3$ . In our case it's $25\sqrt3$

6 0

2 years ago