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3 years ago

Find the value of c that makes the expression a perfect-squaretrinomial.• 6) x2 + 26x + c

Mathematics

1 answer:

slava [35]3 years ago

8 0

The value of c would be 169

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Solve this equation by taking the square roots

Monica [59]

Answer:

Step-by-step explanation:

1 3^2 is =

subtract what u get from up here

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3 years ago

17 20ths as a decimal.

Paul [167]

The answer is .85. 17/20 = .85

4 0

3 years ago

Gonzalez Manufacturing borrowed $. Part of the money was borrowed at %, part at %, and part at %. The annual interest was $

Pavel [41]

Answer:

The answer is "rate 12%, 14%, 16% and value 4000, 10000, and 7000".

Step-by-step explanation:

Let the value is x, y, and z. so,

The value of x amount will be borrowed at 12% $= \frac{12}{100} \times x= 0.12x$

The value of y amount will be borrowed at 14% $= \frac{14}{100} \times x= 0.14x$

The value of z amount will be borrowed at 16% $= \frac{16}{100} \times x= 0.16x$

If the total amount= 21000

$\to x+y+z=21000$

If the total interest= 3000

calculating the total interest:

$\to 0.12x +0.14y +0.16z = 3000$

The overall amount borrowing at 12% and 14% was half as much as the amount borrowed at 16%.

$\to x + y = 2z\\\\\to x + y - 2z = 0$

by calculating the value we have 3 equations that are:

$\to x+y+z=21000\\\\\to 0.12.x +0.14.y +0.16z = 3000\\\\\to x + y - 2z= 0\\$

calculate the matrix by above-given value:

$\left[\begin{array}{ccc}1&1&1\\0.12&0.14&0.16\\1&1&-2\end{array}\right]$ $\left[\begin{array}{c}x&y&z\\ \end{array}\right] =\left[\begin{array}{c}21000&3000&0\\ \end{array}\right]$

by solving the above matrix we get:

$\left[\begin{array}{c}x&y&z\\ \end{array}\right] =\left[\begin{array}{c}4000&10000&7000\\ \end{array}\right]$

$\to \$ 4000 \text{ lent at} 12 \% \\\to \$ 10000 \text{ lent at} 14 \% \\\to \$ 7000 \text{ lent at} 16\%\\\\$

6 0

3 years ago

Whoever answers correctly can have brainliest<br> but answer asap

Valentin [98]

Answer:

3 1/3

Step-by-step explanation:

2 1/2 = 5/2

1 1/3 = 4/3

5/2×4/3

5×4/2×3=

20/6=

10/3 = 3 1/3

3 0

2 years ago

Read 2 more answers

0.42 inch of rain fell in 3 hours. How many inches of rain fell per hour?

pochemuha

divide total amount (0.42) by number of hours (3)

0.42 / 3 = 0.14 inches per hour

3 0

3 years ago

Read 2 more answers

Find the value of c that makes the expression a perfect-squaretrinomial.• 6) x2 + 26x + c​

Find the value of c that makes the expression a perfect-squaretrinomial.• 6) x2 + 26x + c