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3 years ago

In angle PQR, angleQ=70 angle R=45 then angleP=.....

Mathematics

1 answer:

NemiM [27]3 years ago

7 0

Answer:

Step-by-step explanation:

Because its a triangle,

P + Q + R = 180

So,

P + 70 + 45 = 180

P + 115 = 180

Subtract 115 on both sides

P = 65

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What is the value of the expression 8/15 divided by (-0.35)

tekilochka [14]

Answer:

-1.514

Step-by-step explanation:

8/15 = 0.53

Equation:-

0.53/(-0.35)

=> -1.5142857142857145 = -1.514 (Approx.)

8 0

2 years ago

What is the slope of the line that contains the points (7,-1) and (-2,2)?

Vesnalui [34]

Answer: -1/3

(7,-1)= (x1,y1)

(-2,2)= (x2,y2)

Slope= $\frac{y2-y1}{x2-x1}$

= $\frac{2-(-1)}{-2-7}$

= $\frac{1}{-3}$

1/-3 is the same thing as -1/3

8 0

4 years ago

26 was divided by a power of ten to get 0.26. What power of ten was it divided by?

Inga [223]

100

I got the answer by 26 divided by 0.26

3 0

3 years ago

The mean of six numbers is 8, and the mean of another four numbers is 5.

Ket [755]

Answer:

6.8

Step-by-step explanation:

8 * 6 = 48 (to reverse dividing by 6 to basically un-average the 6 numbers).

5 * 4 = 20 (to un-average these numbers as well).

48 + 20 = 68

68 / 10 = 6.8

Basically by doing this you are still adding all the numbers together & then dividing by 10 as if you added them all up at once & not in a group of 6 & a group of 4.

Hope this helped. :)

4 0

3 years ago

An architect designs a castle tower for a new attraction at a popular amusement park. Blueprints of the tower, which is in the s

marin [14]

Answer:

<u>The surface area of the tower is 5,218.1 m²</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Height of the blueprint = 47 cm

Length of the blueprint = 23 cm

Width of the blueprint = 25 cm

Scale factor 1 : 96

2. Calculate the actual surface area of the tower and enter your answer in square meters with two decimal places.

Let's calculate the measurements of the actual tower:

Height of the blueprint = 47 * 96 = 4,512 cm = 45.12 m

Length of the blueprint = 23 * 96 = 2,208 cm = 22.08 m

Width of the blueprint = 25 * 96 = 2,400 cm = 24 m

Now, let's calculate the surface area of the tower, this way:

Surface area of the tower = 2* (24 * 22.08) + 2 * (45.12 * 22.08) + 2 * (45.12 * 24)

Surface area of the tower = 1,059.84 + 1,992.5 + 2,165.76

<u>Surface area of the tower = 5,218.1 m²</u>

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3 years ago

In angle PQR, angleQ=70 angle R=45 then angleP=.....​

In angle PQR, angleQ=70 angle R=45 then angleP=.....