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3 years ago

Write the equation – 2x2 + 1 = 5x in standard form

Mathematics

2 answers:

oksian1 [2.3K]3 years ago

6 0

Answer: 5 x = − 3

Step-by-step explanation: brainlest please

zloy xaker [14]3 years ago

3 0

Answer:

Step-by-step explanation:

If -2x^2+1=5x = -2x^2-5x+1 move the 5x to the left and it becomes a negative

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Suppose you can work at most a total of 25 hours per week. Baby-sitting, x, pays $6 per hour and working at the grocery store, y

Andrei [34K]

Answer:

y=7 number of hours at grocery store

x=18 number of hours at baby- sitting

Step-by-step explanation:

According to the information provided.

x is number of hours at baby- sitting

y is number of hours at grocery store

total number of hours worked

1) x+y =25

total earn in a week

2) x*$6 + y* $9 = $171

from equation 1

x+y=25

x= 25-y

we place the above derived equation in equation 2

x*$6 + y* $9 = $171

(25-y)*$6 + y* $9 = $171

(25*6) -6y +9y =171

150+3y=171

3y=171-150

3y=21

y=7 number of hours at grocery store

x= 25-y

x= 25-7

x=18 number of hours at baby- sitting

3 0

3 years ago

Jerome tries to find the value of the expression 3 - 6 + 5 by first applying the commutative property.He rewrites the expression

Afina-wow [57]

By moving the signs he actually changed the number itself. He changed -6 from a negative to a positive and 5 from a positive to a negative. Both equations give different answers.

Hopefully this helps :)

8 0

3 years ago

Find m∠X. Put the answer below. m∠X =

tia_tia [17]

This is a 90-60-30 triangle so the angle is 30 degrees.

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2 years ago

The temperatures at 6:00 am one morning in four cities are given below.

Andre45 [30]

Answer:

-9

Step-by-step explanation:

8 0

3 years ago

Solve the absolute value equation for |r-6|=3

Volgvan

The solutions would be 3 and 9

6 0

3 years ago

Read 2 more answers