mia is six years older than her sister Natalie the sum of their age is 48 how old is Natalie

Answer:

Step-by-step explanation:

Melonie,  k = 2*10,  is another way to look at this

I think you can get the answer now

k = 20 , if you're not sure

Answer: 6 feet and 2 yards are the same distance because each yard is 3 feet

Step-by-step explanation:

Answer:

=60 cm

Step-by-step explanation:

                           i took the test

Answer: In that picture the slope is increasing

Step-by-step explanation: positive rise and positive run (uphill from left to right)

For figure {0}, the number of tiles will be equal to 2.

Function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function

Expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators

Equation : A mathematical equation is used to equate two expressions.

Given is a graph as shown in the image.

The line passes through point -

(3, 8) and (4, 10)

So, the slope of the line will be -

m = (10 - 8)/(4 - 3)

m = 2

y = 2x + c

For the point (3, 8), we can write -

8 = 6 + c

c = 2

For figure {0}, the number of tiles will be equal to 2.

Therefore, for figure {0}, the number of tiles will be equal to 2.

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Answer:

y=3v+25.............

Answer:

$25 + $3v

Step-by-step explanation:

$25 + $3v

The axis of symmetry for each function are x = -4 and x =1

The functions are given as

f(x) and h(x)

As a general rule of functions;

The axis of symmetry for a function is the x-coordinate of the vertex of the function

In f(x), we have

f(x)=3(x+4)² + 1​

The vertex of this function is

(x, y) = (-4, 1)

So, the axis is x = -4

For function h(x), we have

The vertex of this function is

(x, y) = (1, -3)

So, the axis is x = 1

Hence, the axis of symmetry are x = -4 and x =1

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Answer:

Angie rode 23 miles

Step-by-step explanation:

Given John's distance 0.23, multiply that by the amount or times of distance that angie rides to find the distance she rode.

0.23 × 100

23

Angie rode 23 miles.

Hope this helps!

Have a nice day!

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Answer:

23 miles.

Step-by-step explanation:

This is an equation in words so let's start by putting it into numbers.

we know that John rides his bike for .23 miles and Angie rides her bike a whopping 100 TIMES as far. That means we would multiply.

.23 x 100 = 23

So that means Angie rides her bike for 23 miles.

Hope that helps and have a great day!

Answer:

- 27.88

Step-by-step explanation:

Probability of earthquake = 0.0012

P(earthquake). = 0.0012

P(no earthquake) = 1 - p(earthquake) = 1 - 0.0012 = 0.9988

X ____ 60,000 ______ - 100

P(X) ___ 0.0012 _____ 0.9988

The expected value of the policy :

E(X) = Σx*p(x)

E(X) = (0.0012 * 60000) + (0.9988 * - 100)

E(X) = 72 - 99.88

E(X) = - 27.88

Answer:

16 deliveries

Step-by-step explanation:

238 ≤ 10d + 78

160 ≤ 10d

16 ≤ d

Thus, he needs to make at least 16 deliveries to make at least $238 in one day.  Any less than 16 deliveries will cause him to fall short of his goal and any more than 16 deliveries will cause him to exceed his goal.

Answer:

10.26 I believe you wanted me to divide 7.39/0.72. If so, you get 10.2638 that rounds to 10.26

Step-by-step explanation:

Can u give me brainliest please

The value of the expression 7.39 ÷ 0.72 is 10.26 to the nearest hundredths.

We have,

Expression:

7.39 ÷ 0.72

Now,

The expression can be written as,

= 7.39 / 0.72 ______(1)

Simplify the numerator and denominator.

Numerator = 7.39 = 739/100 _____(2)

Denominator = 0.72 = 72/100 ______(3)

Now,

From (1), (2), and (3).

7.39 / 0.72

= (739/100) / (72/100)

= 739/100 x 100/72

100 is the common factor so it gets canceled.

= 739/72

= 10.2638888.....

Rounding to the nearest hundredths.

= 10.26

Thus.

The value of the expression 7.39 ÷ 0.72 is 10.26 to the nearest hundredths.

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Answer:

B, D represent pairs of vertical angles.

___

Other pairs may be congruent, but they are not vertical angles. The lines that look parallel must be assumed to be NOT parallel, because they are not marked in the diagram as being parallel. Thus ∠8 ≠ ∠12, for example.

- sqdancefan

The surface areas of the figures are 336, 82 and 836

From the question, we have the following parameters that can be used in our computation:

The figures

For the triangular prism, we have

Surface area = 2 * 1/2 * 6 * 8 + 12 * 10 + 8 * 12 + 6 * 12

Surface area = 336

For the rectangular prism, we have

Surface area = 2 * (7 * 3 + 3 * 2 + 2 * 7)

Surface area = 82

For the cylinder, we have

Surface area = 2π * 7 * (7 + 12)

Surface area = 836

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The surface area of the prisms are

1. 336 cm²

2. 82 m²

3. 836 cm²

The area occupied by a three-dimensional object by its outer surface is called the surface area.

A prism is a solid shape that is bound on all its sides by plane faces.

The surface area of prism is expressed as;

SA = 2B +pH

where B is the base area , p is the perimeter and h is the height.

1. SA = 2B +ph

B = 1/2 × 6 × 8

= 24 m²

p = 6+8+10 = 24m

h = 12m

SA = 2 × 24 + 24 × 12

= 48 + 288

= 336 cm²

2. SA = 2( 3× 2) + 3× 7)+ 2 × 7)

= 2( 6+21+14)

= 2( 41)

= 82 m²

3. SA = 2πr( r +h)

= 2 × 3.14 × 7( 7 + 12)

= 44( 19)

= 836 cm²

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Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

,mnlnnl;

If spring A has a spring constant which is 8 times spring B's spring constant then the ratio of their periods is = 9K and  \(\frac{9K}{8}\)

Spring stiffness is a characteristic that describes the relationship between load and deflection. If k is stiffness, P is load, and x is deflection, P = kx. The smaller the deflection at a constant load, the stiffer the spring, k.

Given that,

If spring A has a spring constant which is 8 times spring B's spring constant,

Let us assume,

A spring is cut into two parts of length La and Lb

Also given that La : Lb

La : Lb = 1 : 8

The total of spring constant is = 1 + 8 = 9

If the length of spring is L , then La

La = \(\frac{L}{9}\)

And length of B , Lb

Lb = \(\frac{8L}{9}\)

We know, for spring force , spring constant or stiffness of spring is inversely proportional to length of spring .

K ∝ 1 / L

If initial spring constant is k then,

kL= KaLa = KbLb

Then,

Ka = \(\frac{K}{\frac{1}{9} }\)

Ka = 9K

And Kb = \(\frac{K}{\frac{8}{9} }\)

Kb = \(\frac{9K}{8}\)

Hence, stiffness of A is given by, 9K

Stiffness of B is given by  \(\frac{9K}{8}\)

Therefore,

If spring A has a spring constant which is 8 times spring B's spring constant then the ratio of their periods is = 9K and  \(\frac{9K}{8}\)

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Answer:

C

Step-by-step explanation:

edge correct

Answer:

c

bdlkbcksBIBKHBKJBCKSDBVKb vdvkjB;KJBbxjsabcjksbckjbcdmbcbncblkscbn bvklhkhbfmnnsvfuyl. jhilcvew;gflwuw

Answer:

Volume = 7.912

Step-by-step explanation:

V = πr²h

V = 3.14 × 3/4 × 3/4 × 6 3/4 ( π = 22/7 or 3.14 )

V = 3.14 × 9/16 ×18/4

V = 3.14 × 0.56 × 4.5

V = 7.912

Step-by-step explanation:

y=5

hence the gradient of the equation is 0

so gradient of perpendicular line

m1m2=-1

0=-1 hence the question is not correct

To find the area of the region $AMCN$, we need to calculate the area of the rectangle $ABCD$ and subtract the areas of the triangles $ABM$ and $ADN$.

Given that the rectangle $ABCD$ has dimensions 8 cm by 4 cm, its area is calculated as length times width: $8, \text{cm} \times 4, \text{cm} = 32, \text{cm}^2$.

Since $M$ is the midpoint of $\overline{BC}$, we can see that $\overline{BM}$ and $\overline{CM}$ are each half the length of $\overline{BC}$. So, $\overline{BM} = \overline{CM} = \frac{1}{2} \times 4 , \text{cm} = 2 , \text{cm}$.

Similarly, $N$ is the midpoint of $\overline{CD}$, so $\overline{DN} = \overline{CN} = \frac{1}{2} \times 8 , \text{cm} = 4 , \text{cm}$.

Now, we can calculate the areas of the triangles $ABM$ and $ADN$. The area of a triangle is given by the formula: $\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}$.

For triangles $ABM$, the base is $\overline{AB}$, which is 8 cm, and the height is $\overline{BM}$, which is 2 cm. Thus, the area of triangle $ABM$ is: $\frac{1}{2} \times 8 , \text{cm} \times 2 , \text{cm} = 8 , \text{cm}^2$.

For triangle $ADN$, the base is $\overline{AD}$, which is 4 cm, and the height is $\overline{DN}$, which is 4 cm. Therefore, the area of triangle $ADN$ is: $\frac{1}{2} \times 4, \text{cm} \times 4, \text{cm} = 8, \text{cm}^2$.

Finally, to find the area of the region $AMCN$, we subtract the areas of the triangles $ABM$ and $ADN$ from the area of the rectangle $ABCD$:

$\text{Area of region} , AMCN = \text{Area} , ABCD - \text{Area} , ABM - \text{Area} , ADN = 32 , \text{cm}^2 - 8 , \text{cm}^2 - 8 , \text{cm}^2 = 16 , \text{cm}^2$.

Therefore, the number of square centimeters in the area $AMCN$ is 16.

The area of region $AMCN$ is $48$ square centimetres.

To find the area of region $AMCN$, we can consider that it is composed of two smaller rectangles: $AMCB$ and $ANC$.

$AMCB$ is a rectangle with length $AB = 8$ cm and width $BM = \frac{1}{2} \cdot BC = \frac{1}{2} \cdot 4$ cm (since $M$ is the midpoint of $BC$).

Therefore, the area of $AMCB$ is $8 , \text{cm} \times \frac{1}{2} \cdot 4 , \text{cm} = 16 , \text{cm}^2$.

$ANC$ is also a rectangle with length $AC = 8$ cm and width $NC = \frac{1}{2} \cdot CD = \frac{1}{2} \cdot 8$ cm (since $N$ is the midpoint of $CD$).

Therefore, the area of $ANC$ is $8 , \text{cm} \times \frac{1}{2} \cdot 8 , \text{cm} = 32 , \text{cm}^2$.

Now, add the areas of these two rectangles to find the total area of region $AMCN$:

$16 , \text{cm}^2 + 32 , \text{cm}^2 = 48 , \text{cm}^2$

So, the area of region $AMCN$ is $48$ square centimetres.

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Answer:

Below

Step-by-step explanation:

Set up a similar ratio

12 is to 7    as   x is to 4

12/7   =   x/4      multiply both sides by 4

48/7 = x = ~ 6.9 units

C. The point estimate of the difference between the two population means is 2.

D. The 90% confidence interval estimate of the difference between the two population means is (1.748, 0.867)

Given that:

Sample 1 mean (x1) = 9

Sample 2 mean (x2) = 7

Sample 1 standard deviation (σ1^2) = 2.28

Sample 2 standard deviation (σ2^2) = 1.79

C. To find point estimate of the difference between the two population   means.

sample mean(x1) - sample mean(x 2)

 = 9 - 7

= 2

Therefore, point estimate = 2

D. To find 90% confidence interval estimate of the difference between the two population means

90% confidence for 't'

df = (n1 + n2) - 2

   = 12-2

   = 10

90%  confidence with df = 10 is t

t = 1.812

point estimate + 1 - t * \(\sqrt{\frac{s^2_{1} }{n_{1} } + \frac{s^2_{2} }{n_{2} } }\)

2 + 1 - 1.812*\(\sqrt{\frac{2.28^2}{6} + \frac{1.79^2}{6} }\)

3 - 1.812 *\(\sqrt{0.866 + 0.534}\)

1.188 * 0.9305 + 0.7307

(1.748, 0.867)

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Answer:

9.8in

Step-by-step explanation:

i think this right

Answer:

x + 7

Step-by-step explanation:

N/A

Answer:

x + 7

Step-by-step explanation:

We don’t know his current age so we can use x to represent it. In 7 years, he will obviously be 7 years older so that will be addition.

Best of Luck!

In this case, we must analyze the problem to find the solution.

The independent quantity would be the distance Joe works = 1.75 miles

The dependent quantity would be the speed at which Joe walks = 3 miles per hour.

That is the solution.

Answer:

x = 10/243

Step-by-step explanation:

3^5x = 10

243x = 10

Divide 243 on both sides

10/243