3 years ago

What is the answer? Plz help

Mathematics

1 answer:

cestrela7 [59]3 years ago

5 0

Answer:

Step-by-step explanation:

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Help me with my test

geniusboy [140]

$- 8.$

Step-by-step explanation:

$h(x) = 2 {x}^{2} - 5x + k$

If h(-2) = 3.

Then, h(-1) =

$h( - 1) = 2 {( - 1)}^{2} - 5( - 1) + k$

$h( - 1) = 2 + 5 + k$

$h( - 1) = 7 + k$

$- 1 - 7 = k$

$- 8 = k$

4 0

2 years ago

Read 2 more answers

in a two digit number the sum of the digits is 9 if the digits are reversed the number is increased by 9 find the number

leva [86]

Answer:

1474

Step-by-step explanation:

3 0

2 years ago

A car travels at an average speed of 64 miles per hour. How many miles does it travel in 4 hours and 15 minutes?

Burka [1]

15 minutes = 1/4 of an hour = 0.25

64 x 4.25 =272 miles total

8 0

3 years ago

Find the value of x L 7x-7 M 4x+14

viktelen [127]

Answer:

x= 7 sorry if I'm wrong:(

Step-by-step explanation:

7x - 7 = 4x + 14

7x - 7 - 4x = 4x + 14 - 4x

3x - 7 = 14

3x - 7 + 7 = 14 + 7

3x = 21

x = 21/3

x = 7

8 0

2 years ago

Help me solve this pls

ddd [48]

Answer:

$\frac{x - 10}{8}$

Step-by-step explanation:

$\frac{3x}{8} - \frac{x + 5}{4}$

The common denominator of both fractions is 8. Therefore,, divide the denominator of each fraction, then multiply what you get by the numerator of each fraction.

Thus:

$\frac{1(3x) - 2(x + 5)}{8}$

$\frac{3x - 2x - 10}{8}$

$\frac{x - 10}{8}$

5 0

3 years ago