what does x equal to

Answer:

Step 3

Step-by-step explanation:

Answer:

step 3

Step-by-step explanation: 2 to the 3rd is 8 not 9

Answer:

Options A and D are correct

Step-by-step explanation:

Here, we want to find the square root of the negative number;

x^2 = -64

x^2 = 64 * -1

x= √64 * √-1

Mathematically we can write the √-1 as i

X = √64 * i

Square root of 64 is plus or minus 8

so x = -8i or 8i

The solutions of an equation are the true values of the equation.

The expression that represents the solution(s) of [tex]\mathbf{8i}[/tex] is [tex]\mathbf{-8i}[/tex]

The equation is given as:

[tex]\mathbf{x^2 = -64}[/tex]

Take square roots of both sides

[tex]\mathbf{x = \pm\sqrt{-64}}[/tex]

Expand

[tex]\mathbf{x = \pm(\sqrt{64} \times \sqrt{-1})}[/tex]

[tex]\mathbf{x = \pm(8 \times \sqrt{-1})}[/tex]

In complex numbers,

[tex]\mathbf{ \sqrt{-1} = i}[/tex]

So, we have:

[tex]\mathbf{x = \pm(8 \times i)}[/tex]

[tex]\mathbf{x = \pm8i}[/tex]

Split

[tex]\mathbf{x = 8i\ or -8i}[/tex]

So, the expression that represents the solution(s) of [tex]\mathbf{8i}[/tex] is [tex]\mathbf{-8i}[/tex]

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Answer:

260 miles

Step-by-step explanation:

Answer:

260

Step-by-step explanation:

you would divide 390 by 6 to see how many hours were  per hour, which is 65. You would then multiply it by 4 to see how far they drove in 4 hours, and you get 260. To prove this is right for sure you could multiply 65x2 which is 130 and add 130+260 which would make up the 6 hours and you’d get 390

Answer:

C

Step-by-step explanation:

Given

[tex]\frac{x}{2}[/tex] ≥ - 4 ( multiply both sides by 2 to clear the fraction )

x ≥ - 8

Answer:

what is the other lenght? a rectangle has 2 different kinds of sides. Unless you meant a square.

Answer:

(6,31)

Step-by-step explanation:

solve the both equation;

3X+13=5X+1

or, 12=2X

or, X=6

substitute the value of x in the equation;

y=5X+1

or, y=5×6+1

or, y=31

Answer:

Step-by-step explanation:

Transformation from figure 1 to figure 2,

Translation of figure 1 by 6 units to the left.

Transformation of figure 1 to figure 3,

Reflection of figure 1 across y-axis.

Transformation from figure 1 to figure 4,

Translation of figure 1 by 6 units to the left and 4 units down.

Transformation from figure 1 to figure 5,

Translation of figure 1 by 3 units left and 6 units down.

Transformation from figure 1 to figure 6,

Reflection of figure 1 across x-axis.

Answer:

2.03

Step-by-step explanation:

Answer:

2000

Step-by-step explanation:

Salim will need to get 2000 clicks in order to get $50 per month or more.

First: 5 cents goes into one dollar 20 times.

Second: You multiply 20 times 50. This is how you get 2000. There is your answer.

Pls Mark Brainliest

Hi madinashakari91 how are you?

I still think you're pretty

Answer:

y=-1/5x+6

Step-by-step explanation:

y-b=m(x-a)

×5) y-7=-1/5(x--5) (×5

5y-35=-1(x+5)

5y-35=-x-5

5y=-x+30

y=-1/5x+6

Answer:

y=-1/5x+6

Step-by-step explanation:

Answer:

4 11/50

Step-by-step explanation:

4.22 = 4 22/100

Now, we simplify!

4 22/100

4 11/50

Hope this helps!

Answer: -3

Step-by-step explanation: When you graph this that’s what you get

Answer:

-3

Step-by-step explanation:

the y intercept is when x is 0 on the graph. Since you know x has to be zero, you can substitute x for 0 in the equation:

y = -0.5x0 -3

Now you can ignore that first part of the equation because it equates to 0, and so you get:

y= 0 - 3

which equals:

y=-3

Answer:

15

Step-by-step explanation:

Substitute the values so it becomes 25-20+10. 25-20=5, 5+10=15.

Answer:

30.58

Step-by-step explanation:

If you turn the 20% into a decimal you get .25 and do the equation .25x 139. This gives you 30.58

If the seventh-grade class has 139 students then 31 students have 31 students.

percentage, a relative value indicating hundredth parts of any quantity.

Given that Twenty-two percent of the seventh-grade class at Santa Ana Middle School has blue eyes

The number of students in  seventh-grade class are 139.

We have to find the number of students who has blue eyes in Santa Ana Middle School.

Convert 22% to decimal value.

22/100=0.22

Now multiply 0.22 with 139

0.22×139

30.58=31 students

Hence,  If the seventh-grade class has 139 students then 31 students have 31 students.

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Answer:

bottum one

Step-by-step explanation:

Answer:

67.5

Step-by-step explanation:

you turn your fraction into a decimal and to find the decimal you take the number and put it out of 100 such as 1/2 is 50/100 therefore meaning you get .50

67 1/2 in fraction form is 135/2 .

Given,

67 1/2 in mixed fraction .

Now to convert mixed fraction to simple fraction follow the following steps,

Multiply the whole number and denominator of the fraction . After that add numerator part to the result of multiplication . Fraction will be formed by keeping the denominator same,

Thus the resultant will be,

67*2 = 134

134 + 1 = 135

Hence the fraction part is :

135/2.

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Answer:

Step-by-step explanation:

Answer:

= 1?

Step-by-step explanation:

Answer:

-20

Step-by-step explanation:

Since x = 10, you would multiply -2 by 10

-2 is negative.

Therefore your answer is negative.

-20

Answer

-2x if x = 10 then the answer would be 20

Step-by-step explanation:

the answer is 20 because -2*10=20 and you have more positives than you do negatives so it would be positive 20

Answer:

(-4, -3)

Step-by-step explanation:

The graph of both lines will be shown below.

To find the solution, we need to find the point on the graph that both lines intersect on.

As we can see, both lines intersect on the point (-4, -3). Thus, that is the solution.

Best of Luck!

Answer:

X=-4 y=-3

Step-by-step explanation:

Solve by substitution:

Step: Substitute

2x+5 for y in y = −3x−15 :

2x+5+3x=-3x-15+3x ( add 3x to both side)

5x+5=-15

5x+5+-5=-15+-5(add -5 to both sides)

5x=-20

5x/5=-20/5(divide both sides by 5)

X=-4

Step: substitute -4 for x in y=2x+5

Y=2x+5

Y=(2)(-4)+5

y=-3 (simplify both sides of the equation)

I HOPE ITS CORRECT IF IT SNOT IM SORRY!!

Answer:

I got 1.19446588127

Answer:

I think its "Maria selected a multiple that is not the least of the common multiples"

Step-by-step explanation:

I think the real answer would be 30 because it the lowest number that they both share....

Answer: the answer is d, she selected a multiple that is not a least common multiple. The least common multiple is the number both sets of numbers share, which  would be 30.

Answer:C: 2/3 B

Step-by-step explanation:

The answers will be ;

a) The required equation will be c =  [tex]\frac{2}{3}[/tex] b

b) The amount of clay for 8 bowls will be [tex]5\frac{1}{3}[/tex] pounds.

It is given that the double number line shows the amount of clay Jamal uses to make different numbers of identical bowls.

We have to solve the subparts of the question to get the values.

What is algebra ?

Algebra is the branch that deals with various symbols and the arithmetic operations such as addition , division , etc.

As per the question ;

The clay needed per bowl = [tex]\frac{2}{3}[/tex] pounds

a)

The equation for clay (c) to make b number of bowls will be ;

c =  [tex]\frac{2}{3}[/tex] × b

or

c =  [tex]\frac{2}{3}[/tex] b

b)

If there are 8 number of bowls

i.e., b = 8

Then ; amount of clay Jamal needs will be ;

c =  [tex]\frac{2}{3}[/tex] × 8

c = [tex]\frac{16}{3}[/tex] pounds

or

c = [tex]5\frac{1}{3}[/tex] pounds

Thus , the answers will be ;

a) The required equation will be c =  [tex]\frac{2}{3}[/tex] b

b) The amount of clay for 8 bowls will be [tex]5\frac{1}{3}[/tex] pounds.

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Answer:

32 erasers.

Step-by-step explanation:

Leona has 8 erasers. Gabriella has 4 times as many. This means we have to multiply 8 by 4 to get the answer.

8x4 = 32 erasers.

Answer: x=8 and DE=31

Step-by-step explanation:

Answer:

7.

Step-by-step explanation:

9y+12=75

subtract 12 from 75

divide by 9y