Solve for v. 4= - 3/v+5 simplify your answer as much as possible

Answer:

B. [tex]y=-7[/tex]

Step-by-step explanation:

[tex]y^{3} =-343\\\\\sqrt[3]{y^{3} } =\sqrt[3]{-343} \\\\\ y=-7[/tex]

The answer that fits this is B. [tex]y=-7[/tex]

Answer:

B) y = -7

Step-by-step explanation:

y^3= y*y*y

-7*-7*-7= -343

Thus, it is B

Answer: 2xy * (√x - √y)

Step-by-step explanation:

2√x^3y^2 - 2√x^2y3

2√x^3√y^2 - 2√x^2√y^3

2√x^3y - 2x√y^3

2(√x^3y - x√y^3)

2(x√xy - xy√y)

2(xy√x - xy√y)

Answer : 2xy * (√x - √y)

Answer:

The amplitude is 3.

Step-by-step explanation:

Answer: 1110

Step-by-step explanation:

For an arithmetic progression, the nth term is gotten by using the formula:

= a + (n-1)d

Therefore,

7th term = a + 6d = 38 ..... equation i

12 term = a + 11d = 63 ...... equation ii

Subtract equation i from ii

(a + 6d) - (a + 11d) = 38 - 63

-5d = -25

d = 25/5

d = 5

Since d = 5

From a + 6d = 38

a = 38 - 6d

a = 38 - (6×5)

a = 38 - 30

a = 8

The sum of the first 20 terms will be:

= n/2[2a + (n-1)d]

= 20/2[(2×8) + (20-1)5]

= 10[16+(19 × 5)]

= 10(16+95)

= 10(111)

= 1110

Answer:

5x +10

Step-by-step explanation:

3(x+2)+2(x+2)

Distribute

3x+6 +2x+4

Combine like terms

5x +10

Answer:

5x+10

simplified if you want: x+2

Step-by-step explanation:

3x+6+2x+4

5x+10

Answer:

B Positive, because the products (-5)(-2) and (-7)(-6) are positive and the product of two positive numbers is positive

Step-by-step explanation:

(-5)(-2)(-7)(-6)

Negative times a negative is positive

+ (-7)(-6)

Negative times a negative is positive

+ * +

Positive times a positive is positive

Answer:

the correct answer is

Step-by-step explanation:

B

Answer:

203in²

Step-by-step explanation:

split up the shape into three rectangles

5in × 14in = 70

9in × 7in = 63

5in × 14in = 70

70 + 63 + 70 = 203in²

Answer:

[tex]\left[\begin{array}{ccc}-30&22&8\\-4&-4&16\\30&-28&18\end{array}\right][/tex]

Step-by-step explanation:

Given

[tex]A = \left[\begin{array}{ccc}-1&9&2\\10&-10&2\\-5&6&-5\end{array}\right][/tex]

[tex]B = \left[\begin{array}{ccc}7&-1&-1\\6&-4&-3\\-10&10&-7\end{array}\right][/tex]

Required

2A - 4B

To solve 2A - 4B, we first multiply matrix A by 2 and matrix B by 4

So, if

[tex]A = \left[\begin{array}{ccc}-1&9&2\\10&-10&2\\-5&6&-5\end{array}\right][/tex]

[tex]2A = 2 *\left[\begin{array}{ccc}-1&9&2\\10&-10&2\\-5&6&-5\end{array}\right][/tex]

[tex]2A = \left[\begin{array}{ccc}-2&18&4\\20&-20&4\\-10&12&-10\end{array}\right][/tex]

If

[tex]B = \left[\begin{array}{ccc}7&-1&-1\\6&-4&-3\\-10&10&-7\end{array}\right][/tex]

then

[tex]4B = 4*\left[\begin{array}{ccc}7&-1&-1\\6&-4&-3\\-10&10&-7\end{array}\right][/tex]

[tex]4B = \left[\begin{array}{ccc}28&-4&-4\\24&-16&-12\\-40&40&-28\end{array}\right][/tex]

So; 2A - 4B becomes

[tex]\left[\begin{array}{ccc}-2&18&4\\20&-20&4\\-10&12&-10\end{array}\right] - \left[\begin{array}{ccc}28&-4&-4\\24&-16&-12\\-40&40&-28\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}-2-28&18-(-4)&4-(-4)\\20-24&-20-(-16)&4-(-12)\\-10-(-40)&12-40&-10-(-28)\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}-30&18+4&4+4\\20-24&-20+16&4+12\\-10+40&12-40&-10+28\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}-30&22&8\\-4&-4&16\\30&-28&18\end{array}\right][/tex]

Hence, 2A - 4B is equivalent to

[tex]\left[\begin{array}{ccc}-30&22&8\\-4&-4&16\\30&-28&18\end{array}\right][/tex]

Answer:

Option C

please see the attached picture for full solution

hope it helps..

Good luck on your assignment...

Answer:

$2,400

Step-by-step explanation:

Ken intends to start a savings account

10% = leisure spending

This means 90% = Expenses for school

Let us represent the amount he must save as : x

Hence in other for him to have $2,160 in his savings account, the amount Ken must earn is calculated as:

90/100 × x = $2,160

Cross Multiply

90x = $2,160 × 100

x = ($2,160 × 100) ÷ 90

x =$2,400

Therefore, the amount Ken has to earn to have the amount needed for school is $2,400

Answer:

The quadrilateral would be a rectangle.

explanation:

since opposite sides are equal, the diagonals are bound to equal as well, since the whole point of a diagonal is to go from one point to it's opposite corner.

I hope I helped, And please rate me 5 stars!

Answer:

This is true.

Answer:

Option (2)

Step-by-step explanation:

Relation between fee charged by piano instructor and the lessons has been shown in the graph.

Two points passing through the line are (2, 80) and (4, 140)

Let the one time fee = $b

Hourly charges for the lessons = $x

Equation of the line will be,

y = mx + b

Slope of the line 'm' = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m = [tex]\frac{140-80}{4-2}[/tex]

m = [tex]\frac{60}{2}[/tex]

m = 30

y = 30x + b

For point (2, 80),

80 = 30(2) + b

b = 80 - 60

b = 20

Therefore, one time fee charged by the instructor = $20

Since instructor put a coupon to waive off the one time fee, value of the coupon will be = $20

Option (2) is the answer.

Answer:

I think its $20

Step-by-step explanation:

Answer:

17.6706

Step-by-step explanation:

we know that in a rectangle triangle we can apply the Pythagorean theorem

[tex]16^2+7.5^2=x^2[/tex]

so [tex]x^2=256+56.25=312.25\\[/tex]

[tex]x = \sqrt{312.25} = 17.6706[/tex]

Answer:

17.6706

Step-by-step explanation:

The area of a circle is equal to:

[tex]\pi \times {r}^{2} [/tex]

r = 1/2 the diameter

1/2 of 14 is 7

7 squared is 49

The area is 49π

Answer:

c

Step-by-step explanation:

bruh

Answer:

all real numbers

Step-by-step explanation:

5|2x + 4| > -10

Divide by 5

5/5|2x + 4| > -10/5

|2x + 4| > -2

An absolute value is always greater than a negative number so the solution is all real numbers

10 L of a 25% acid solution contains 0.25 * (10 L) = 2.5 L of acid.

Adding x L of pure water dilutes the solution to a concentration of 10%, such that

(2.5 L)/(10 L + x L) = 0.10

Solve for x :

2.5 = 0.10 * (10 + x)

2.5 = 1 + 0.10x

1.5 = 0.10x

15 = x

so 15 L of pure water are needed.

Answer:

7

Step-by-step explanation:

2-(-8)+(-3)

2+8-3

10-3

7

Answer:

it is [tex]7[/tex]

Answer:

1) The Triangle Sum Theorem states that the sum of the angles in a triangle = 180°

2) The triangle inequality theorem states that the sum of any two sides of a triangle is larger than the third side

3) Isosceles triangle theorem states that the angles opposite the equal sides of an isosceles triangle are congruent

4) Converse of the Isosceles theorem states that the sides opposite the equal angles of an isosceles triangle are congruent

5) Midsegment of a triangle theorem states that the midsegment of two sides of a triangle is equal to half of the side it is parallel to

6) Concurrency of medians theorem states that the medians of a triangle intersect at a point within the triangle

Step-by-step explanation:

1) The Triangle Sum Theorem states that the sum of the angles in a triangle = 180°

Proof: To draw a triangle ABC starting from the point A we move 180° - ∠A to get to ∠B

From ∠B we turn 180° - ∠B to get to ∠C and from ∠C we turn 180° - ∠C to get back to A we therefore have turned 360° to get to A which gives;

180° - ∠A + 180° - ∠B + 180° - ∠C = 360°

Hence;

- ∠A - ∠B  - ∠C = 360° - (180°+ 180°+ 180°) = -180°

-(∠A + ∠B  + ∠C) = -180°

∴ ∠A + ∠B  + ∠C = 180°

2) The triangle inequality theorem states that the sum of any two sides of a triangle is larger than the third side

Proof: Given ΔABC with height h from B to D along AC, then

AC = AB×cos∠A + CB×cos∠C

Since ∠A and ∠C are < 90 the cos∠A and cos∠C are < 1

∴ AC < AB + CB

3) Isosceles triangle theorem

Where we have an isosceles triangle ΔABC with AB = CB, we have by sine rule;

[tex]\dfrac{AB}{sin(A)} = \dfrac{CB}{sin(C)} = \dfrac{CB}{sin(A)}[/tex]

Therefore;

sin(C) = sin(A) hence ∠A = ∠C

4) Converse of the Isosceles theorem

Where we have an isosceles triangle ΔABC with ∠A = ∠C, we have by sine rule;

[tex]\dfrac{AB}{sin(A)} = \dfrac{CB}{sin(C)} = \dfrac{CB}{sin(A)}[/tex]

Therefore;

sin(C) = sin(A) hence AB = CB

5) Midsegment of a triangle theorem states that the midsegment of two sides of a triangle is equal to half of the side it is parallel to

Given triangle ABC with midsegment at DF between BA and BC respectively, we have;

in ΔABC and ΔADF

∠A ≅ ∠A

BA = 2 × DA, BC = 2 × FA

Hence;

ΔABC ~ ΔADF (SAS similarity)

Therefore,

BA/DA = BC/FA = DF/AC = 2

Hence AC = 2×DF

6) Concurrency of Medians Theorem

By Ceva's theorem we have that the point of intersection of the segments from the angles in ΔABC is concurrent when the result of multiplying ratio the ratios of the segment formed on each of the triangle = 1

Since the medians bisect the segment AB into AZ + ZB

BC into BX + XB

AC into AY + YC

Where:

AZ = ZB

BX = XB

AY = YC

We have;

AZ/ZB = BX/XB = AY/YC = 1

∴ AZ/ZB × BX/XB × AY/YC = 1 and the median segments AX, BY, and CZ are concurrent (meet at point within the triangle).

Answer:

50√3/3

Step-by-step explanation:

30-60-90 triangle

50:x = 2sqrt3 : 2

50*2 =100

100/2sqrt3 = ​3

​50√

​3

​

Please mark me brainiest..

​​

​​

Answer:

The found values are:

μ = 8

σ = 2

Step-by-step explanation:

Following data is given in the question:

p = 0.5

n = 16

Consider that it follows binomial distribution:

For binomial distribution, the mean is the product or probability 'p' and and the sample size 'n' :

μ = p · n

μ = 0.5 · 16

μ = 8

For binomial distribution, the standard deviation is the square root of product of sample size 'n' and the probabilities 'p' and 'q'.

σ = √(n·p·q)

where q = 1 - p = 1 - 0.5 = 0.5

σ = √(16 · 0.5 · 0.5)

σ = √4

σ = 2

Answer:

-3

Step-by-step explanation:

5x + 15 = 1x + 3

Add -1x and -15 on both sides.

5x - 1x = 3 - 15

4x = -12

Divide 4 into both sides.

4x/4 = -12/4

x = -3

The solution for the equation is x = -3.

Answer:

√10 is between 3 and 4

Step-by-step explanation:

√9 = 3

√16 = 4

√10 is between 3 and 4, but closer to 3

√10 ≈ 3.16228

Answer:

one is 3.1 two is 3.2

Step-by-step explanation:

Answer:

El monto que pagará Jorge por la compra de 5 kilogramos de arroz y 13 kilogramos de azúcar es de S/53.7

Step-by-step explanation:

Denominemos un kilogramo de arroz como R y un kilogramo de azúcar como A, por lo tanto tenemos;

8 · R + 10 · A = 60 .............................. (1)

20 · R + 15 · A = 126 .......................... (2)

Multiplicando la ecuación (1) por 1.5 y restando el resultado de la ecuación (2), tenemos;

20 · R + 15 · A - 1.5 × (8 · R + 10 · A) = 126 - 1.5 × 60 = 36

8 · R = 36

R = 36/8 = S/4.5

Lo que da, de la ecuación (1);

8 · R + 10 · A = 60 = 8 × 4.5 + 10 · A = 60.

10 · A = 60 - 8 × 4.5 = 24

A = 24/10 = 2.4 = S/2.4

Por lo tanto, 5 kilogramos de arroz y 13 kilogramos de azúcar costarán

5 × 4.5 + 13 × 2.4 = S / 53.7.

El monto que Jorge pagará por la compra de 5 kilogramos de arroz y 13 kilogramos de azúcar = S/53.7.

Answer:

do you need help?

Step-by-step explanation:

what is the question

Answer:

The answer is "all angle will be same"

Step-by-step explanation:

In the given question choices were missing so, the correct choice can be defined as follows:

Given:

ABC reflected over AC and dilated by a scale factor 2/3 from ΔDEC.

Solution:

[tex]\triangle ABC \sim \triangle DEC \angle B \cong \angle E3DE = 2AB[/tex]

Answer: A, B, D

Step-by-step explanation: Edge2023

Answer:

5/6

Step-by-step explanation:

2/3 ÷ 4/5

= 2/3 × 5/4

= (2)(5)/(3)(4)

= 10/12

= 5/6

Step-by-step explanation:

2/3 ÷ 4/5

= 2(5) /3(4)

=10/12

=5/6