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Alik [6]
2 years ago
12

In the figure, m∠7 = 100° . Find the measure of ∠8 .

Mathematics
1 answer:
Law Incorporation [45]2 years ago
4 0

Answer:

i need the picture

Step-by-step explanation:

i cant solve without the picture

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Ive been having this question for a while "what do you use first PEMDAS or Order of Operations". Well you might say it doesn't m
IgorLugansk [536]

Answer:

Order of Operations was aught at a younger age for those just grasping the idea of multiplication and division. Exposing PEMDAS at a young age would confuse them too much, hence the order of operation groups, addition/subtraction and multiplication/division. So for the second example problem, PEMDAS would be correct because it does involve you to use parentheses as well as exponents to solve for. Very easy to mix up between order of operations and PEMDAS, but just look at it as if Order of operations is a beginner level of PEMDAS.

Step-by-step explanation:

5 0
3 years ago
If you answer this your littearly a pro hacker pls help ​
gladu [14]

Answer:

6 times 3 times 4

18 times 4

= 72

Step-by-step explanation:

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6 0
2 years ago
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In the diagram, TC represents a vertical building. The points, A and B, are on the same level as the foot C of the building such
Alenkinab [10]

Answer:

(a) The height of the building is 60.06 m

(b) The distance AB is 139.43 m

Step-by-step explanation:

The given parameters are

Given that segment BT = segment AT + 29

By trigonometric ratios, we have;

cos∠ATC = CT/AT

cos∠BTC = CT/BT

Therefore, we have;

cos(40°) = CT/AT.................................(1)

cos(56°) = CT/BT = CT/(AT + 29).....(2)

cos(56°) = CT/(AT + 29)......................(3)

From equation (1)

CT = AT×cos(40°)

From equation (3)

AT×cos(56°) + 29 × cos(56°) = CT

Therefore;

AT×cos(40°) = AT×cos(56°) + 29 × cos(56°)

AT×cos(40°) - AT×cos(56°) =  29 × cos(56°)

AT×(cos(40°) - cos(56°)) =  29 × cos(56°)

AT = 29 × cos(56°)/(cos(40°) - cos(56°)) = 78.4 m

TC = CT = AT×cos(40°) = 78.4×cos(40°) = 60.06 m

The height of the building = 60.06 m

(b) BT = AT + 29 = 78.4 m + 29 m= 107.4 m

AB = AT×sin(∠ATC ) + BT×sin(∠BTC) = 78.4×sin(40°) + 107.4×sin(56°) =  139.43 m

The distance AB =  139.43 m.

6 0
2 years ago
On Planet Galactica, common units of distance are alpha, beta, and gamma. 4 gammas equal 5 betas. 2 betas equal 3 alphas. How ma
siniylev [52]

Answer:

15/8 alphas = 1 gamma

Step-by-step explanation:

4 gammas = 5 beta

beta = 4/5 • gamma

2 betas = 3 alphas

beta = 3/2 • alpha

beta = beta

4/5 • gamma = 3/2 • alpha

multiply each side by 5/4

5/4 • 4/5 • gamma = 5/4 • 3/2 • alpha

gamma = 15/8 • alpha

5 0
2 years ago
Four more than twice a number is twenty.
wariber [46]

Answer:

ig

Step-by-step explanation:

4 0
3 years ago
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