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Shalnov [3]
3 years ago
9

Why is the measure of angle a in the triangle enter your answer in the box

Mathematics
1 answer:
deff fn [24]3 years ago
5 0

all angles add to 180, so add and solve for x. plug x into A and you get 50 degrees

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Help fast please it's timed ​
yan [13]

Answer:

2x= 3x-7

-x=-7

x=7

so, the first option

Step-by-step explanation:

3 0
2 years ago
Solve the following inequality for d. Write your answer in simplest form.
suter [353]

Answer:

d>67

Step-by-step explanation:

Let's solve your inequality step-by-step.

−50−(−9d+7)>−d+10+9d

Step 1: Simplify both sides of the inequality.

9d−57>8d+10

Step 2: Subtract 8d from both sides.

9d−57−8d>8d+10−8d

d−57>10

Step 3: Add 57 to both sides.

d−57+57>10+57

d>67

8 0
2 years ago
The school spent $504 on calculators. How<br> many did the school buy?
jeka57 [31]

Answer: how much did the calculators cost seperetely dummy

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
LAY
marta [7]

Answer:

A

Step-by-step explanation:

how long is the ball in the air ?

that is the same as asking : after how many seconds will the ball hit the ground (= reach the height of 0) ?

so, that means we need to find the zero solution of h(t).

at what t is h(t) = 0 ?

when at least one of the factors is 0 :

2(-2 - 4t)(2t - 5)

we have 3 factors

2 : can never be 0.

(-2 -4t) : can only be 0 for negative t, which does not make sense in our scenario (we cannot go back in time, only forward).

(2t - 5) : is 0 when 2t = 5 or t = 2.5

so, A is the right answer.

FYI : the starting height (on the hill) is given by t = 0 :

2(-2 - 0)(0 - 5) = 2×-2×-5 = 20 ft

3 0
2 years ago
Greg has decreased his running time by 1/10 minute each of the last six weeks. Write an expression to represent the total change
Nastasia [14]

x is your starting running time. 1/10 of a minute is 6 seconds, so you can do x - 6(6). 6 times 6 = 36, so your answer is x - 36 seconds. 36 seconds.

7 0
3 years ago
Read 2 more answers
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