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uysha [10]
2 years ago
7

Find the value of expression when b=9, c=5, d=1/2; expression is 1/2d + c^3 - b​

Mathematics
1 answer:
Step2247 [10]2 years ago
7 0

Answer:

115 3/4

Step-by-step explanation:

\frac{1}{2} * \frac{1}{2} Because d=1/2. 1/2*1/2=1/4

C=5 so, C^3=5x5x5

C=125

Next, b=9

Then, you put everything together.

1/4+125-9=125 1/4-9

115 3/4

115 3/4+9 1/4

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Find the measure of each acute angle in a right triangle where the measure of one acute angle is 3 times the sum of the measure
expeople1 [14]

Answer:

α = 20.5

β = 69.5

c = 90

Step-by-step explanation:

we have to make 2 equations one for the relationship between the angles and another for the sum of all the angles

β and α are the acute angles

β = 3α + 8

α + β + 90 = 180

we replace in the second equation the value of β by (3α + 8)

α + β + 90 = 180

α + (3α + 8) + 90 = 180

a + 3a = 180 - 90 - 8

4a = 82

a = 82/4

a = 20.5

now we replace the value of b in the other equation

β = 3α + 8

β = 3 * 20.5 + 8

β =  69.5

6 0
3 years ago
Use the drop-down menus to complete each equation so the statement about its solution is true No Solutions 2T +5 2r 3r T One Sol
Mandarinka [93]

Answer:

asdasdasdasdasdasdsdsad

Step-by-step explanation:

asdasdasdasdasdsdasdasdasd

5 0
2 years ago
At most, Alana can spend $40 on carnival tickets. Ride tickets cost $4 each, and food tickets cost $2 each. Alana buys at least
Lapatulllka [165]

Answer:

4 is the maximum number of ride tickets she can buy

Step-by-step explanation:

Here, r represents the number of ride tickets and f represents number of food tickets.

The system of inequalities is given as:

r+f\geq 16                         ....[1]

4r+2f\leq 40                    .....[2]

To solve Mathematically:

Multiply equation [1] by -2 we have;

-2r-2f \leq -32               .....[3]

Add equation [2] and [3] we have;

2r \leq 8

Divide both sides by 2 we have;

r \leq 4

Since r must be less than or equal to 4.

You can also see the graph of the given system of inequalities as shown below.

The intersection point is, (4, 12)

Therefore, the maximum number of ride tickets she can buy is, 4

3 0
3 years ago
After a hurricane, the Johnsons had 6 inches of water in their basement that was being pumped out at a rate of 1 inch per hour.
iren2701 [21]

Answer:

6>5

Step-by-step explanation:

I know it is true

4 0
3 years ago
Use a system of equations to solve this problem.
emmainna [20.7K]
We have to set up 2 equations:
A) x + y = 10 liters
B) .05x + .25y = 10 * .10

Multiply equation B) by -4
B) -.2x  - y = -4 then add to equation A)
A) x + y = 10 liters
.8x = 6 liters
x = 7.5 liters of 5%
y = 2.5 liters of 25%

6 0
3 years ago
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