solve the following equation algebraically:
2 x squared = 98
a.
x = 7
b.
x = plus-or-minus 49
c.
x = plus-or-minus 7
d.
x = 49

Answers

Answer 1

Answer:

c.  [tex] x = \pm 7 [/tex]

Step-by-step explanation:

[tex] 2x^2 = 98 [/tex]

[tex] x^2 = 49 [/tex]

[tex] x = \pm\sqrt{49} [/tex]

[tex] x = \pm 7 [/tex]


Related Questions


7x-11>3
Solve and graph for X
Beep help please ASAP

Answers

71/2x-4 and the graph is attached

Suppose that
g(x) = f(x)•h(x),
f(3) = 6,
h(3) = 2,
h'(6)=4,
h'(3)=15 and
f'(3) = 8.
Find g(3).

(A) 32
(C) 106
(B) 8
(D) 60

Answers

Answer:

g(3) = 6*2 = 12

Step-by-step explanation:

In this problem you're given more information than is necessary to solve it.  

g(x) = f(x)*h(x) is the product of functions f and h.

If x has the value 3, then:

f(x) = f(3) = 6, h(x) = h(3) = 2.  Thus, when x = 3 we have g(x) = g(3) = 6*2 = 12

The value of g(3) using g(x) = f(x)·h(x) is 12.

Given that, g(x) = f(x)·h(x).

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Put x=3 in g(x) = f(x)·h(x), we get

g(3) = f(3)·h(3)

⇒ g(3) =6×2

= 12

Therefore, the value of g(3) using g(x) = f(x)·h(x) is 12.

To learn more about the function visit:

https://brainly.com/question/28303908.

#SPJ2

Can someone please help? I will give Brainliest. ​

Answers

Answer:

Ask your mom and she might tell you

Step-by-step explanation:

Answer:

ye

Step-by-step explanation:


2. Solve for y
-4y -20 +19= -y + 17


i need someone to answer this it’s due by midnight

Answers

Answer:

y= -6

Step-by-step explanation:

The answer is y=-6 was

IT'S TIMED NEED HELP ASAP!! Find the measure of angle C

Answers

Answer: 250 degrees

Step-by-step explanation:

Answer:

[tex]x=\frac{1}{7}[/tex]

15(1/7)+5= 7.14 (rounded o the nearest hundredths)

I hope this is good enough:

Question 7 of 25
If two line segments have the same length, which of the
following must be true?
A. They form a right angle.
B. They are congruent.
ht
C. They are equal.
O D. They share an endpoint.

Answers

i think B. they are congruent?

5x-6
3x +2
5yº
Only enter the number. What is the value of x?

Answers

Answer:

4

Step-by-step explanation:

Please answer FAST i need your help and when you put your answers put them like
1.
2.
3.
4.
5.

Answers

Step-by-step explanation:

3.5

1

-7.14

1

1/5

6.5

sorry if this and are wrong

1. 3.5
2.=-1/8
3.-30.66
4.=1/3

Please help. Questions in the picture.

Answers

Answer:

Step-by-step explanation:

(2 , 0)  ; (0, 1)

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\[/tex]

          [tex]= \frac{1-0}{0-2}\\\\=\frac{1}{-2}\\\\\\=\frac{-1}{2}[/tex]

m = -1/2 ; (2 , 0)

Equation of the line : y - y1 = m(x - x1)

                                  [tex]y - 0 = \frac{-1}{2}(x-2)\\\\ y = \frac{-1}{2}x - 2*\frac{-1}{2}\\\\\\ y = \frac{-1}{2}x+1[/tex]

slope = (-1/2)

y - intercept = 1

You and your mom enter a drawing with 3 different prizes. The prizes are
awarded at random.
If a total of 10 people entered the drawing, in how many ways can you win
first prize and your mom win second prize?
a. 8
b. 2
c. 10
d. 1

Answers

Answer:

The correct answer is 8.

Step-by-step explanation:

There are 2 ways that you can win first prize and your mom can win the second prize.

What is probability?

It is the chance of an event to occur from a total number of outcomes.

The formula for probability is given as:

Probability = Number of required events / Total number of outcomes.

Example:

The probability of getting a head in tossing a coin.

P(H) = 1/2

We have,

There are 10 people who entered the drawing.

Since the prizes are awarded at random, the probability of you winning the first prize is 1/3, and the probability of your mom winning the second prize is 1/2.

We can use the multiplication principle of counting to find the number of ways that you can win first prize and your mom can win the second prize.

The number of ways that you can win first prize is 1 since there is only one first prize and you are one of the 10 people who entered.

Once the first prize winner is chosen, there are 9 people left, and the number of ways that your mom can win the second prize is 1 out of 9.

The total number of ways that you can win first prize and your mom can win the second prize is:

1 × 1/3 × 1/2 × 9 = 3/2

However, the answer cannot be a fraction or decimal, since we are counting the number of ways in which events can occur.

Therefore, we round up to the nearest integer and get:

3/2 ≈ 2

Therefore,

There are 2 ways that you can win first prize and your mom can win the second prize.

Learn more about probability here:

https://brainly.com/question/14099682

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What is x- value of point A

Answers

Answer:

5

Step-by-step explanation:

The x value of point A is 5

In which step did Helena make an error

Answers

Answer:

You have to post the picture so we can help.

Step-by-step explanation:

Determine whether the given equation has one solution, no solution, or infinitely many solutions.

2 - 3(x + 4) = 3(3 - x)

cannot be determined
one solution
no solution
infinitely many solutions

Answers

Answer:

one solution is your answer to the question

Answer:

Perform the indicated multiplication: 2 - 3x - 12 = 9 - 3x

Gather all the x terms on one side and all the constants on the other:

-3x + 3x = 9 + 12 - 2, or 0 = 19

since this is never true, 2 - 3x - 12 = 9 - 3x has no solution.

3(2+q)+15 simplified

Answers

Answer:

6+ 3q+15

Step-by-step explanation:

I hope this is what you needed!

What si the answer of Y = 7x -3 for x

Help

Answers

Answer:

[tex]x=\frac{1}{7}y+\frac{3}{7}[/tex]

Step-by-step explanation:

[tex]y=7x-3[/tex]

[tex]7x-3=y[/tex]

[tex]7x-3+3=y+3[/tex]

[tex]\frac{7x}{7}= \frac{y+3}{7}[/tex]

[tex]x=\frac{1}{4}y+\frac{3}{7}[/tex]

A(n)______ dot on the graph of an inequality shows that the points IS a solution of the inequality.
A) flat
B) open
C) closed
D) invisible​

Answers

Answer:

c because an open doesnt mean its guaranteed but it starts at closed.

10³ ÷ (25×4) = Please​

Answers

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

10³ ÷ (25×4)

1000 ÷ 100 = 10

Find the y-intercept of the following equation. Simplify your answer. y = 8x + 10 y-intercept=​

Answers

Answer:

10

Step-by-step explanation:

Peter bought 8 lemons for $6,. Each lemon was the same price.
What was the cost for 1 lemon?

Answers

Answer:

.75 cents

Step-by-step explanation:

Solve for y: -5y + 6 = 16
A. -14/5
B. -2
C. 14/6
D. 2

Answers

Answer:

b

Step-by-step explanation:

i think it is b the answer is b

In the diagram, AB= DC and AC= DB. Why does m

Answers

Answer:

why does m what????

Step-by-step explanation:

i need hep plsss T-T
what is 5/6 rounded to the nearest hundredth?

Answers

Answer:

0.83

First, we convert the fraction to a decimal number by dividing the numerator by the denominator:

5 / 6 = 0.833

There are two parts to the decimal number above:

Integer Part: 0

Fractional Part: 833

Now, we will make the Fractional Part just two digits (nearest hundredth) by using our rounding rules.*

In this case, Rule I applies, so 5/6 (or 0.833) rounded to the nearest hundredth in decimal format is:

0.83

A science teacher ordered S2278 worth of microscopes and dissection kits for the new science lab. A total of
26 microscopes and 56 dissection kits were ordered. A microscope costs three times as much as a dissection
kit. Write a system of linear equations that represents this situation. What is the cost of each item?

Answers

Answer:

[tex]26M + 56D = 2278[/tex] ---- equation 1

[tex]M = 3D[/tex] ---- equation 2

A microscope costs S51 and a dissection kit costs S17

Step-by-step explanation:

Given

Represent microscope with M and Dissection kits with D

Cost:

[tex]M = 3D[/tex]

[tex]Total = 2278[/tex]

Required

Represent as an equation:

To do this, we represent the equation in terms of cost and quantity

In terms of cost, we have:

[tex]26M + 56D = 2278[/tex] ---- equation 1

and

[tex]M = 3D[/tex] ---- equation 2

Substitute 3D for M in equation 1

[tex]26*3D + 56D = 2278[/tex]

[tex]78D + 56D = 2278[/tex]

[tex]134D = 2278[/tex]

Divide both sides by 134

[tex]D = \frac{2278}{134}[/tex]

[tex]D = 17[/tex]

Substitute 17 for D in [tex]M = 3D[/tex]

[tex]M = 3 * 17[/tex]

[tex]M = 51[/tex]

Hence:

A microscope costs S51 and a dissection kit costs S17

how do i find my sister's math question she just posted how do i find it

Answers

Answer:

You can find it on her profile, in the questions section.

Step-by-step explanation:

Tap her profile picture, which will take you to her profile.

Tap the questions bar, which should lead you to all questions she has posted.

Lastly, tap the question you want! It should show you the date or time it was posted.

A brainiest is this doggo's bone!

I really need a 100 I'm felling in all my classes, please


Select the fraction that is equivalent to one-sixth.

Answers

Answer:

There is no picture, or diagram with the question, but 1/6 = 2/12

Answer:

2/12

Step-by-step explanation:

1/6 * 2 = 2/12

Multiply both numerator and denomanotor

Lastly solve |5x-7|= -3

Answers

Answer:

there is no number to plug into x cause you can't have a negative number if it is absolute value cause that makes everything positive

The toy rocket is how much inches long?

Answers

Answer:

10.4

Explanation:

If you zoom in closely you can see the toy rocket is at the 4th tick on the ruler, so this would make the toy rocket 10.4 inches long!

What is 64.2 multiplied by 0.25

Answers

Answer:

16.05

Step-by-step explanation:

multiplication

Answer:

16.05

Step-by-step explanation:

There are 18 tires on one truck. How many tires are on 3 trucks of the same type

Answers

Answer:

54 tires

Step-by-step explanation:

Just multiply 18 and 3 to get the answer of 54.

Answer: 54

Step-by-step explanation: 18x3=54 should be correct just used a calculator :)

if AB || CD and AC = BD, is ACD = CAB?

Answers

Yes becauseGuess the sides are all equal but not one so 8BACDNequals CAB
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