Estimate the product of 392 and 624

Answer:

I believe it is 7.

Step-by-step explanation:

Answer: .1 or 1

Step-by-step explanation:

The surface area of the rectangular prism is calculated as 340 unit²

The surface area of the prism can be calculated as the sum of surface area of two rectangular prism.

The formula of a rectangular prism is given as;

S.A = 2[(lh + wh + lw)]

Substituting the values into the formula;

S.A = 2[(10*8) + (5 * 8) + (10 * 5)]

S.A = 2[80 + 40 + 50]

S.A = 2 * 170

S.A = 340 unit²

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Answer:

Step-by-step explanation:

[tex]2x^2+13x+15\\\\(2x+a)(x+b)=2x^2+(2b+a)x+ab=2x^2+13x+15\\\\a=3\\\\b=5\\\\\Rightarrow 2x^2+13x+15=(2x+3)(x+5)[/tex]

so it's option A

I think it's A, because the option for A is [tex](2^x+3)(x+5)[/tex] and it should be [tex](2x+3)(x+5)[/tex]

2.

[tex](x+y+z)^2\\\\=(x+y+z)(x+y+z)\\\\=x(x+y+z)+y(x+y+z)+z(x+y+z)\\\\=(x^2+xy+xz)+(xy+y^2+yz)+(xz+yz+z^2)\\\\=(x^2+y^2+z^2)+(xy+xy)+(xz+xz)+(yz+yz)\\\\=x^2+y^2+z^2+2xy+2xz+2yz[/tex]

So it's option B

180°

120°

90°

hope this helps

Answer:

180°

120°

90°

Step-by-step explanation:

I don't know how to explain, but were you in RSM 6th grade honors / advanced?

Answer:

Jayla is incorrect.

Step-by-step explanation:

8.0 × 10 = 80

or

8 × 10 = 80

Answer:

B and C

Step-by-step explanation:

Answer:

Hello There!

The correct answers are B: The number of bass decreased over time and C: The number of catfish increased over time.

Step-by-step explanation:

This is simply what the chart shows, as well as I got this correct on Edge :)

Answer:

[tex]\bold{x = \frac{-5 \± i\sqrt7}{2}}[/tex]

Step-by-step explanation:

x^2 + 5x + 8=0

Comparing with ax^2+bx+c=0

we get a = 1, b = 5, and c = 8.

Using the quadratic formula, we have:

[tex]x = \frac{-b \± \sqrt{(b^2- 4ac)}}{ 2a}[/tex]

Substituting these values, we get:

[tex]x =\frac{ -5 \± \sqrt{5^2 - 4*1*8}}{2*1}[/tex]

[tex]x = \frac{-5 \± \sqrt{25 - 32}}{ 2}[/tex]

[tex]x = \frac{-5 \± \sqrt{-7}}{ 2}[/tex]

[tex]x = \frac{-5 \± i\sqrt7}{2}[/tex]

Therefore, the solutions are:[tex]x = \frac{-5 \± i\sqrt7}{2}[/tex]

Answer:

I think the answer is 90˚

Step-by-step explanation:

I maybe wrong but I'm trying my best

I hope u get it right

Answer:

need a answer

Step-by-step explanation:

Answer:

(3x-7) (x-7)

hope this helps C:

Answer: 32.5

Step-by-step explanation:

13 is 40% of 32.5

Step-by-step explanation:

12x-15-4x+1=-6

12x-4x= -6+15-1

8x= 8

x=1

my answer is 100 % correct

Answer:

Step-by-step explanation:

The Sequence is not properly written. Here is the correct sequence

408, 433, 458...

THe sequence is an arithmetic sequence. The nth term of an arithmetic sequence is expressed as;

[tex]T_n = a+(n-1)d[/tex] where;

a is the first term

d is the common difference.

Common difference is the constant value that is being added to preceding term of the sequence to get the next value in the sequence.

T1 = 408

T2 = 433

T3 = 458

d = T3-T2 = T2-T1

d = 458-433 = 433-408

d = 25

Hence the common difference in the sequence is 25

Answer:

4=8g

4/8 = 8g/8

g= 4/8=1/2

g=1/2

Step-by-step explanation:

The value of g is 1/2.

An equation is a statement that two mathematical expressions have equal values. An equation simply states that two things are equal. The equal sign "=" is used to indicate it.

An algebraic expression or proposition claiming the equality of two quantities.

Given a phrase 4 is the product of 8 and g,

acc. to Question  

4 =  product of 8 and g

4 = 8 x g

4 = 8g

g = 4/8

g = 1/2

Therefore value of g is 1/2.

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Answer:

30°

Step-by-step explanation:

we can use the trigonometric functions

[tex]\sin \theta=\frac{Op}{Hyp}\\\\Opposite=4\\\\Hypotenuse=8\\\\\Rightarrow \sin \theta = \frac{4}{8}\\\\\sin \theta =\frac{1}{2}\\\\\theta=\sin ^{-1}(\frac{1}{2})\\\\\thetha= 30[/tex]

Answer:

The spindle speed is 37.4 rev./ min

Step-by-step explanation:

This is a form of joint variation. From the question, it can be deduced that:

S [tex]\alpha[/tex] [tex]\frac{C}{D}[/tex]

S = [tex]\frac{KC}{D}[/tex]

where K is the constant of proportionality.

Given that:

C = 50 feet per minute, D = 2 inches, S = 93.5 rev/ min, thus;

K = [tex]\frac{SD}{C}[/tex]

  = [tex]\frac{2*93.5}{50}[/tex]

  = [tex]\frac{187}{50}[/tex]

  = 3.74

K = 3.74

When D = 4 inches, C = 40 feet /minute, the S can be determined by;

S = [tex]\frac{KC}{D}[/tex]

  = [tex]\frac{3.74*40}{4}[/tex]

  = 37.4 rev./ min

Answer:

= 30

Step-by-step explanation:

9z-3w

9(5)-3(5)

Multiply:

45-3(5)

Multiply:

45-15

Subtract:

= 30

v(-2) = 11,  v(0) = 7,  v(5) = -3.

hope this helps! :)

[tex]v(x) = 12 - 2x - 5\\v(-2) = 12 - 2(-2) - 5\\v(-2) = 12 + 4 - 5\\v(-2) = 11\\-----------------------------\\v(0) = 12 - 2(0) - 5\\v(0) = 12 - 0 -5\\v(0) = 7\\-----------------------------\\v(5) = 12 - 2(5) - 5\\v(5) = 12 - 10 - 5\\v(5) = -3[/tex]

Answer[tex]\implies[/tex] 0.666666667

Hope it helps you...

Given the set B = {4, 9}, the inverse image  f⁻¹(B) is a collection of all real numbers whose squares are either 4 or 9. This set can be expressed as f⁻¹(B) = {-2, 2, -3, 3}.

Let's use mathematical language to represent the direct image as f(A), where a mapping function  takes a set A as input and generates its corresponding image.

The set of inputs that correspond to a certain set B is referred to as the inverse image or f⁻¹(B).

To illustrate this concept effectively, let's analyze a practical scenario. Suppose there exists a mathematical function denoted as  that maps real numbers to their respective squares by using the equation f(x) = x².

Given the set B = {4, 9}, the inverse image  f⁻¹(B) is a collection of all real numbers whose squares are either 4 or 9. This set can be expressed as  f⁻¹(B) = {-2, 2, -3, 3}. The elements in set B are the result of squaring the inputs corresponding to these values.

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Answer:

13

Step-by-step explanation:

Square root of 169 =  13

Answer:

13

Step-by-step explanation:

y^2= 169

y=?

√169= 13

Answer:

y = -8

Step-by-step explanation:

Step 1: Write equation

9 - 4y = 1 - 5y

Step 2: Solve for y

Step 3: Check

Plug in y to verify it's a solution.

9 - 4(-8) = 1 - 5(-8)

9 + 32 = 1 + 40

41 = 41

The lengths of the three sides are 14 feet, 17 feet, and 25 feet.

Let's assume that the shortest side of the triangular deck has a length of x feet.

According to the given information, the second side of the deck is 3 feet longer than the shortest side. Therefore, its length would be (x + 3) feet.

The third side of the deck is 3 feet shorter than twice the length of the shortest side. Hence, its length would be (2x - 3) feet.

The perimeter of a triangle is the sum of the lengths of its sides. In this case, the perimeter is given as 56 feet. So, we can set up the following equation:

x + (x + 3) + (2x - 3) = 56

Simplifying the equation, we have:

4x = 56

Dividing both sides by 4, we find:

x = 14

Now, we can substitute the value of x back into the expressions for the

second and third sides:

Second side: x + 3 = 14 + 3 = 17 feet

Third side: 2x - 3 = 2(14) - 3 = 25 feet

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Answer:

1 1/2

Step-by-step explanation:

4 can go into 6 1 time than 6-4 = 2 and 2/4 simplified is 1/2

Answer:

commutative property of addition states that when two numbers are being added, their order can be changed .

Step-by-step explanation:

The question is not complete

but I think it should be

y= -9

Hope it helps

Answer:

Y= -9

Step-by-step explanation:

Answer:

3:2

Step-by-step explanation:

3 females every 2 males

Answer:

Answer 1: If it is not Saturday, then there is school.

Answer 2: If there is no school, then it is Saturday.

Answer 3: If there is an orientation, then all freshmen are required to attend.

Answer 4: subtraction poe/ subtraction property of equality.