I need helpp plss and thanks

I Need Helpp Plss And Thanks

Answers

Answer 1

Answer:

1.63

Step-by-step explanation:

-31 + 7 = -24

[tex]\sqrt{-24}[/tex]  = 4.9

4.9/3 = 1.63 (rounded down from 1.6333333)

Answer 2

Answer:

[tex]x = 2 \sqrt{2} i \: or \: x = - 2 \sqrt{2} i[/tex]

Step-by-step explanation:

• Add 7 to both sides.

[tex]3x {}^{2} - 7 + 7 = - 31 + 7[/tex]

Simplify

[tex]3x {}^{2} = - 24[/tex]

Divide both sides by 3

[tex] \frac{3x {}^{2} }{3} = \frac{ - 24}{3} [/tex]

Simplify

[tex]x {}^{2} = - 8[/tex]

Find the solution

[tex]x = \sqrt{ - 8} \: and \: x = - \sqrt{ - 8} [/tex]

Simplify

[tex] \sqrt{ - 8} = 2 \sqrt{2i} [/tex]

[tex] - \sqrt{ - 8} = - 2 \sqrt{2i} [/tex]

ANSWER:

[tex]x = 2 \sqrt{2} i \: and \: x = - 2 \sqrt{2} i[/tex]


Related Questions

16 - 2t = 3/2 t + 9 .

Answers

Answer:

t=2

Step-by-step explanation:

Start by subtracting 9 from both sides. You'll get 7-2t=3/2t. I made 3/2 a mixed number, so 1 1/2. You should have 7-2t=1 1/2t. Add 2t to both sides, because the 2t is negative. You should have 7=3 1/2t. Last step is to divide     3 1/2 into both sides. 7 divided by 3 1/2 is equal to 2, so t=2

luke rolls a 10-sided solid with equal-sized faces labeled 1 to 10. what is the probability of rolling a 4?

help giving out 10 points to those who help and the right answer!

Answers

The probability of an event describes the likelihood an event will occur. The likelihood of an event ranges from impossible to certain, but more common descriptions are likely to unlikely. An event is a single outcome or a group of outcomes. An outcome is a possible result of an action. Probability can be represented as a fraction, as a decimal, or as a percent. Something is fair if there is an equal chance for each outcome to occur.

1 out of 10, or [tex]\frac{1}{10}[/tex]. It is unlikely to occur.

How to get -70 from 24/12+72/8-9

Answers

Answer:

Step-by-step explanation:

24/12 = 2

72/(8 - 9)  Be sure and use brackets when you post a question. 8 - 9 = - 1

72/-1 = - 72

2 - 72 = - 70

there is more than one question! please help ! i have been struggling all day and today i’m on a time limit !

Answers

Answer:

  3(5h - 2g)

= 3×5h - 3×2g  

= 15h - 6g

  5(12g - 4f)

= 5×12g - 5×4f

= 60g - 20f

  2(h - 3g)

= 2×h - 2×3g

= 2h - 6g

  4(3x - g) + 4x

= 4×3x - 4×g + 4x

= 12x - 4g + 4x

= 16x - 4g

  9(4g + 1) - 5g

= 9×4g + 9×1 - 5g

= 36g + 9 - 5g

= 31g + 9

Twice the difference between a number and 10 is equal to 6 times the number 13!

Answers

(x-10) • 2 = 6(13)

2x-20=78
-20 -20
2x=58
————
2 2

X= 29

9. 4,3,1, -2,...
What is the next number in the pattern

Answers

Answer: -6

Explanation: 4 -1 =3 ; 3-2=1 ; 1 -3 = -2 ; -2 - 4=-6

3x + y = 16
X + y = 8

What are x and y

Answers

Find x-intercept

The x-intercept is where the graph crosses the x-axis. To find the x-intercept, we set y1=0 and then solve for x.

3x + y = 16

3x + 1(0) = 16

x1 = 5.333 y1 = 0

Find y-intercept

The y-intercept is where the graph crosses the y-axis. To find the y-intercept, we set x2=0 and then solve for y.

3x + y = 16

3(0) + y = 16

y2 = 16 x2 = 0

5.12 divided by 35.75

Answers

Answer:

please explain further so i can help.

Step-by-step explanation:

Solve with explanation please

Answers

Answer:

Length of the rectangular lot = 60 meters

Width of the rectangular lot = 30 meters

Step-by-step explanation:

Let the width of the rectangular lot be x meters.

So, Length of the same = 2x metres.

[tex]A(rectangular \:lot) = (2x)(x)[/tex]

[tex]\implies A(rectangular \:lot) = 2x^2[/tex]

When length is increasEd by 40 m and width by 6 m. Then....

New length = [tex](2x + 40) \:m[/tex]

New width =[tex](x + 6) \:m[/tex]

According to the question:

[tex](2x + 40)(x + 6) = 2(2x^2)[/tex]

[tex]\implies 2x(x + 6) + 40(x + 6) - 4x^2=0[/tex]

[tex]\implies 2x^2+12x + 40x + 240 - 4x^2=0[/tex]

[tex]\implies 2x^2- 4x^2+12x + 40x + 240 =0[/tex]

[tex]\implies -2x^2+52x + 240 =0[/tex]

[tex]\implies 2(x^2-26x - 120) =0[/tex]

[tex]\implies x^2-26x - 120=0[/tex]

[tex]\implies x^2-30x+4x - 120=0[/tex]

[tex]\implies x(x-30)+4(x - 30)=0[/tex]

[tex]\implies (x-30)(x+4)=0[/tex]

[tex]\implies x-30=0,\: x+4=0[/tex]

[tex]\implies x=30,\: x=-4[/tex]

Since, x represents the side length, so its value can't be negative.

[tex]\implies x=30[/tex]

[tex]\implies 2x=2(30)=60[/tex]

Thus,

Length of the rectangular lot = 60 meters

Width of the rectangular lot = 30 meters

Bro I have the hardest test Can y’all help me it’s 1+1

Answers

Answer:

I think it's 12 bro, I'm not sure

A crate of egg cartons holds 8 cartons
of eggs. Each carton has a dozen
eggs. How many eggs are in 5 crates?

Answers

Answer:

480 eggs

Step-by-step explanation:

Given;

A crate of egg cartons holds 8 cartons of eggs.

Each carton has a dozen eggs.

To Find;

How many eggs are in 5 crates?

Note;

Dozen eggs = 12 egg

Solve;

Thus, Dozen eggs × Carton of eggs × many eggs are in crates

→ 12 × 8 × 5

→ 96 × 5

→ = 480

[RevyBreeze]

A factory made 2400 tools in 30 days.how many tools did it make in one day​

Answers

Answer:

80 tools in one day

Step-by-step explanation:

30 = 2400

÷ 30

1 = 80

Below is an image of 64 = 8 What would the image look like to show 100 ? ​

Answers

Answer: 10 rows of 10

Step-by-step explanation:

Find the point-slope equation of the line using the point (1,2) and slope of 3/2.

Use the slash key (/) to indicate a fraction.

Answers

Answer:

y=3/2 x + 1/2

Step-by-step explanation:

please see attached picture

Helpppppppppppppppppl

Answers

Answer:

C

Step-by-step explanation:

Rotates then reflects over the y axis.

Answer:

C) rotation, then reflection

Step-by-step explanation:

1. rotates to spot 2. then reflects to spot 3.

Enter the first 4 terms of the sequence defined by the given rule. Assume that the domain of each function is the set of whole numbers greater than 0.

f(n)=n3-7

The first 4 terms of the sequence are______,______,______,_______.​

Answers

Given:

The given rule is

[tex]f(n)=n^3-7[/tex]

Domain of the function is the set of whole numbers greater than 0.

To find:

The first 4 terms of the sequence.

Solution:

We have,

[tex]f(n)=n^3-7[/tex]

Domain of the function is the set of whole numbers greater than 0. So, the domain for first four terms of the sequence are 1, 2, 3 and 4 respectively.

For n=1,

[tex]f(1)=(1)^3-7[/tex]

[tex]f(1)=1-7[/tex]

[tex]f(1)=-6[/tex]

For n=2,

[tex]f(2)=(2)^3-7[/tex]

[tex]f(2)=8-7[/tex]

[tex]f(2)=1[/tex]

For n=3,

[tex]f(3)=(3)^3-7[/tex]

[tex]f(3)=27-7[/tex]

[tex]f(3)=20[/tex]

For n=4,

[tex]f(4)=(4)^3-7[/tex]

[tex]f(4)=64-7[/tex]

[tex]f(4)=57[/tex]

Therefore, the first 4 terms of the sequence are -6, 1, 20, 57 respectively.

2/3 of a hippos life is spent underwater, the rest of their life out of water is separated into grazing, sleeping and socialising in the ratio 4:7:1. The average life of a hippo is 45 years, how long will it spend doing each of these activities?

Answers

Answer:

Under water is 2/3×45= 30yrs

So rest is 1/3

1/3 is divide in 12 parts

1/3÷12=1/36

Grazing is 4/36×45= 5yrs

Sleeping is 7/36×45=8.75yrs

Socialising is 1/36×45=1.25yrs

Simplify the following expression completely.

x2 + 6x + 9
—————-
x2 + 2x - 3

Answers

Answer:

The answer is that image below. If it isn't correct, I'm sorry.

Tom got 7 over 8 pound of honey from a hive. He calculated the quotient of 7 over 8 ÷ 2 over 5. Which statement shows the quotient and gives the most likely explanation of what Tom was trying to determine?

He can make 14 over 40 of a bottle of honey with 2 over 5 pound of honey in each bottle.
He can get 14 over 40 pound of honey if he divides the honey into 2 over 5-pound portions.
He can get 2 and 3 over 16 pounds of honey if he divides the honey into 2 over 5-pound portions.
He can make 2 and 3 over 16 bottles of honey with 2 over 5 pound of honey in each bottle.

Answers

Answer:

D.

Step-by-step explanation:

if he divides (7/8) / (2/5)

he will get x bottles of honey if each bottle weighs 2/5 pound

One and two step equations


7x-2=-9


Plz asap can y’all explain step by step plzzz it’s for a homework

Answers

Answer:

Step 1: Add 2 to both sides.

7x−2+2=−9+2

7x=−7

Step 2: Divide both sides by 7.

7x/7  =  -7/7

Answer:  x=−1

Answer:

x=-1

Step-by-step explanation:

7x-2=-9 (Given)

7x=-7 (Add 2 on both sides to eliminate he -2 on the left side)

x=-1 (Divide both sides with 7 to eliminate the 7 in 7x)

Answer: x=-1

Kosi traced a rectangle on a coordinate grid. The rectangle had the following vertices: (−6, 5), (2, 5), (2, –1), and (–6, –1). Which of the following numbers are dimensions of the rectangle? Select each correct answer. A. 4 units B. 5 units C. 6 units D. 7 units E. 8 units F. 9 units. help, please!.

Answers

Answer:

C) 6 units

E) 8 units

Step-by-step explanation:

Kosi traced a rectangle on a coordinate grid. The rectangle had the following vertices: (−6, 5), (2, 5), (2, –1), and (–6, –1). Which of the following numbers are dimensions of the rectangle? Select each correct answer. A. 4 units B. 5 units C. 6 units D. 7 units E. 8 units F. 9 units. help, please!.

When given vertices for a geometric shapes we find the lengths of the side by using the formula:

When(x1, y1) and (x2, y2)

= √(x2 - x1)² + (y2 - y1)²

A= (−6, 5),B = (2, 5), C = (2, –1), and D = (–6, –1).

For AB

A= (−6, 5),B = (2, 5),

= √(2 -(-6)² + (5 - 5)²

= √8² + 0

= √64

= 8 units

For BC

B = (2, 5), C = (2, –1),.

√(2 - 2)² +(-1 - 5)²

= √0 + -6²

= √36

= 6 units

For CD

C = (2, –1), and D = (–6, –1).

= √(-6 -2)² + (-1 -(-1))²

= √-8² + 0²

= √64

= 8 units

For AD

A= (−6, 5), D = (–6, –1).

= √(-6 -(-6))² + (-1 - 5)²

= √0² + -6²

= √36

= 6 units

Therefore, the following numbers that are dimensions of the rectangle is

C) 6 units

E) 8 units

Jack draws a pattern of 2 cm wide strips on the wall in the following order: a red strip, a blue strip, an orange strip, a pink strip, and then he repeats the colors in the same order. How long is Jack's pattern if the first and last stripes he painted were red, and he painted six red strips in total?

Answers

Answer:

His pattern is 42cm long.

Step-by-step explanation:

Each repetition of the pattern is 8 cm (4 colors time 2cm each)

If the last color is red and he painted 6 red strips in total, then he repeated the pattern 5 times and ended on an extra red strip.

So 8cm times 5 repetitions equals 40, plus 2cm for the extra red strip.

Technology required. Find the missing measurements.​

Answers

Answer: 40.82

Step-by-step explanation:

Use pythagoras theorem to solve

Root 35 squared + 21 squared = 40.82

in.
What is the perimeter of this tile?
in2
10 in.
8 in.
6 in.
and in exponent 2 or just inch

Answers

Answer:

24 inches

Step-by-step explanation:

10+8+6=24

In inches because it is not the area of the figure.

A roll of tape is 30 yards. How many feet long is that roll of tape?

Answers

90 feet because 1 yard=3 feet

What is the measure of

Answers

Answer:

45°

Step-by-step explanation:

Please help.


What is 7/8 divided by 6/8

Simplify your answer.

Answers

Hey there!

7/8÷6/8=?

Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.

Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes

7/8×8/6=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

7×8/8×6=56/48

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 56 and 48 using

GCF(56,48) = 8

56÷8/48÷8=76

The fraction

7/6

is the same as

7÷6

Convert to a mixed number using

long division for 7 ÷ 6 = 1R1, so

7/6= [tex]1 \frac{1}{6} [/tex]

Therefore:

7/8÷6/8= 1 1/6

Let's do

[tex]\\ \bf\hookrightarrow \dfrac{7}{8}\div \dfrac{6}{8}[/tex]

[tex]\\ \bf\hookrightarrow \dfrac{7}{8}\times \dfrac{8}{6}[/tex]

[tex]\\ \bf\hookrightarrow \dfrac{7}{8}\times \dfrac{4}{3}[/tex]

Cancel 4 and 8

[tex]\\ \bf\hookrightarrow \dfrac{7}{2}\times \dfrac{1}{3}[/tex]

[tex]\\ \bf\hookrightarrow \dfrac{7}{6}[/tex]

A cylinder has a height of 8 millimeters. Its volume is 5,652 cubic millimeters. What is the radius of the cylinder?

Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

Answers

Answer:

15.0

Step-by-step explanation:

V = pi×r^2×h

so r = 15.0

How many whole numbers are between 0 and n+7? n is a whole number.

Answers

At least 7 since 0 is a whole number the lowest n+7 can be is 0+7= 7 and there is seven numbers in between 0 and seven.

Answer:

At least 7 since 0 is a whole number the lowest n+7 can be is 0+7= 7 and there is seven numbers in between 0 and seven.

Step-by-step explanation:

factor the polynomial 4x^4-20x^2-3x^2+15 by grouping. what is the resulting expression?

Answers

Answer:

(4x^2-3)(x^2-5)

Step-by-step explanation:

We are going to group the first two and last two terms and find the GCF of each set.

4x^4-20x^2-3x^2+15

(4x^4-20x^2)(-3x^2+15)

4x^2(x^2-5)-3(x^2-5)

Then we group the GFCs together and the rest

(4x^2-3)(x^2-5)

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