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kkurt [141]
3 years ago
9

Point c is at (2,-4).After being reflected across the y-axis ,What are the coordinates at point c

Mathematics
1 answer:
skad [1K]3 years ago
4 0
Answer (-2, 4) 
after it reflected across y-axis
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Margo can purchase tile at a store for $0.79 per tile and rent a tile saw for $20. At another store she can
TEA [102]

Answer:

$20.00+$0.79=$20.79

$20.79-$1.19=$19.60

5 0
3 years ago
Hida adds 5 to a number, then multiplies the sum by-2. The result is 6. write an equation and solve for x
ella [17]

Answer:

6 = -2(x+5)

6 = -2x -10

6 + 10 = -2x

16 = -2x

x = 16/-2

x = -8

7 0
2 years ago
Quadrilateral ABCD is inscribed in a circle with angle measures m∠A = (11x − 8)°, m∠B = (3x2 + 1)°, m∠C = (15x + 32)°, and m∠D =
dimulka [17.4K]

Answer:

No for all of the 4 values

Step-by-step explanation:

The sum of the internal angles of a quadrilateral is always 360°, so we have that:

m∠A + m∠B + m∠C + m∠D = 360

11x - 8 + 3x2 + 1 + 15x + 32 + 2x2 - 1 = 360

5x2 + 26x - 320 = 0

Solving the quadratic function using Bhaskara's formula, we have:

Delta = 26^2 + 4*5*320 = 7076

sqrt(Delta) = 84.12

x1 = (-26 + 84.12)/10 = 5.81

x2 = (-26 - 84.12)/10 = -11.01 (this value will generate negative angles, so it is not valid).

Now, finding the angles, we have:

m∠A = 11*5.81 - 8 = 55.91°

m∠B = 3*(5.81)^2 + 1 = 102.27­°

m∠C = 15*5.81 + 32 = 119.15°

m∠D = 2*(5.81)^2 - 1 = 66.51°

As all these values are different from the values shown, the answer is No for all of them.

8 0
3 years ago
Juan was given a gift card for a coffee shop. Each morning, Juan uses the card to buy one cup of coffee. Each cup of coffee cost
Black_prince [1.1K]

Answer:

A=30-2x

Step-by-step explanation:

Cost of one cup of coffee=$2

The original amount of money on the gift card= $30

Juan's expenses in buying coffee, after x morning are \$2\times x.

The amount of money left, A, on the card = (Original amount) - (Total expenses)

A=30-2x

Hence, the equation for, A, the amount of money remaining on the card is

A=30-2x.

7 0
3 years ago
Which of the following has 6.053 in written form?
erastovalidia [21]

Answer:

c correct

Step-by-step explanation:

8 0
3 years ago
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