6a – [5b – {3a – (2a – a - b)}]​

Answer: 1230

Step-by-step explanation: 22 hours that's how much she will be studying in total till the seventh day

and 105 mins till the seventh day

so she will be studying 1230 in total so put 1230 at the blank

1230 is your answer

Answer:

Part B: 105

Step-by-step explanation:

15

15x2 =30

30x2 =60

60x2 =120

120x2 =240

240x2 =480

480x2 =960

960/60 =16 hours

I hope I helped!

Answer:

42.0169cm

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving ford

d=C

π=132

π≈42.0169cm

Given:

[tex]4\times 50 =8\times 25[/tex]

To find:

The steps to prove the given statement by using the properties of multiplication.

Solution:

We have,

[tex]4\times 50 =8\times 25[/tex]

Taking left hand side, we get

[tex]LHS=4\times 50[/tex]

[tex]LHS=4\times (2\times 25)[/tex]

[tex]LHS=(4\times 2)\times 25[/tex]     (Associative property of multiplication)

[tex]LHS=8\times 25[/tex]

[tex]LHS=RHS[/tex]

Hence proved.

Answer:

34.8 + 6.879 = 41.679

The ratio of boys to girls in the school’s choir is 3:4. If there

are 12 girls in the choir then there are 9 boys

45% of 175 is 78.75

8^2 - (5^2+ 1) = 38

Brainliest?

Answer:

5 6/12 or 5 1/2

Step-by-step explanation:

Answer:

your answer is B

Step-by-step explanation:

Answer:

(-3,2)

Step-by-step explanation:

Answer:

the first 2 are true the third one is false but I'm not too sure about the last one I think it would be true but I don't want to be the reason you get it wrong

Step-by-step explanation:

to find the mean you add all of them and divide by the number of items so the mean is 3.

I hope this helps I'm sorry I can't give you the exact answer to the last one

Answer:

B

Step-by-step explanation:

this should be right

Answer:

[tex]y=\frac{4}{3}x + 4[/tex]

Step-by-step explanation:

I used the slope formula and slope-intercept form  y  =  m x  +  b  to find the equation.

Hope this helps:)

Answer:

x = 8.481 or -4.481

Step-by-step explanation:

x^2 - 4x - 9 = 29

x^2 - 4x - 9 - 29 = 0

x^2 - 4x - 38 = 0

x1  

= −(−4) − √ (−4)2 − 4×1×(−38)  

2×1

= 4 − 2 × √ 42  

2

≈ −4.481

x2  

= −(−4) + √ (−4)2 − 4×1×(−38)  

2×1

= 4 + 2 × √ 42  

2

≈ 8.481

x = 8.481 or -4.481

Have a nice day!

Answer:

d

Step-by-step explanation:

Answer:

<2 = 133degrees

<1 = 135degrees

Step-by-step explanation:

From the diagram, the angle <2 and 47 are supplementary, hence;

<2 + 47 = 180

<2 = 180 - 47

<2 = 133degrees

To get <1;

47 = 1/2(<1 - 41)

47 * 2 = (<1 - 41)

94 = <1 - 41

<1 = 94 + 41

<1 = 135degrees

The r-value is that represents the weakest correlation is D. -0.05

The connection between the independent (x) and dependent (y) variables in the graph can be graphically represented using regression lines.

In a linear model, the terms are added rather than multiplied, divided, or provided as a non-algebraic function, as has been the case thus far in this section. Analysis of experimental, monetary, and biological data as well as complex system prediction are both possible using linear modelling.

A statistical technique used to build a linear model is called linear regression. The model explains how one or more independent variables Xi relate to a dependent variable y (also known as the response) (called the predictors). The distance between each data point and the regression line is called a residual.

Given data ,

The r-value is a measure of the strength and direction of the linear relationship between two variables. It ranges from -1 to 1, where -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation.

Among the given options, the r-value that represents the weakest correlation is D. -0.05. This is because the absolute value of -0.05 is small compared to the other options, indicating a weaker linear relationship between the variables.

To learn more about linear regression click :

https://brainly.com/question/29753986

#SPJ7

Answer:

x=38 The angle type is alternate exterior

Step-by-step explanation:

Answer:

alternate angle pair are they

Step-by-step explanation:

# Jerry Don is here#

Answer: B

Step-by-step explanation:

Answer:

3.......................

Answer:

A function is a mathematical relationship where all inputs must have exactly one output. If there is more then one output for one input, then the relationship is not a function.

x is most of the time the input and y the output for an equation:

y = 2x

of course the input and output could be any variable.

Step-by-step explanation:

Have a nice day!

Answer:

16v

Step-by-step explanation:

3x + 11 = 4x - 5

11+5 = 4x -3x

x = 16

I hope im right!!

Answer:

you would make 400 each week

Step-by-step explanation:

Answer:

0.6429

Step-by-step explanation:

Let, s = play a sport

c = participate in a club

P(s) = 0.14

P(s n c) = 0.09

probability that a student participates in

a club given that they also play a sport = P(c | s)

P(c | s) = P(c n s) / P(s)

P(c | s) = 0.09 / 0.14

P(c | s) = 0.64285

= 0.6429

Answer:

R = -0.8908

R² = 0.7935

Step-by-step explanation:

Given the data:

X :

5

3

6

3

4

4

6

8

Y :

13

15

7

12

13

11

9

5

Using technology, we could obtain the correlation Coefficient (R) using the Pearson correlation Coefficient calculator :

R = -0.8908 ; This means that there is a strong negative relationship between x and y. That is, an increase in x will lead to a corresponding decrease in y and vice versa.

The Coefficient of determination (R²) ; is obtained by taking the squared value of R

R² = (-0.8908)² = 0.7935 ; This means that about 79.35% of the variation is y is explained by the regression line.

Answer:

since in second quadrant cos θ is negative.

Cos θ=b/h=2/3

b=2

h=3

p=√(3²-2²)

p=√5

Now

Tan θ=p/b=√5/2

since in second quadrant tanθ is negative

so

Tanθ=-√5/2

b. - (sqrt 5)/2

In second Quadrant cos is negative

So

b=2 and h=3

Perpendicular

tanØ=-p/b =-√5/2

Answer:

Step-by-step explanation:

1st on is one solution

2nd one is no solution (the lines have the same slope but different y- intercepts

3rd is infinitely many solutions (the equations are the same)

Answer:

Step-by-step explanation:

4/x = x/9

1 = [tex]x^{2}[/tex] / (9*4)

1 = [tex]x^{2}[/tex] / 36

36 = [tex]x^{2}[/tex]

6 =X

Answer:

[tex]\text{Equation: }2\angle B+\angle B=90\\\angle A=60^{\circ},\\\angle B=30^{\circ}[/tex]

Step-by-step explanation:

Complimentary angles are angles that add up to 90 degrees. Therefore, we can write the following system of equations:

[tex]\begin{cases}\angle A=2\angle B,\\\angle A+\angle B=90\end{cases}[/tex]

Solving, we obtain the equation:

[tex]2\angle B+\angle B=90,\\3\angle B=90,\\\angle B=\boxed{30^{\circ}}[/tex]

Plugging this back in to our first equation, we get:

[tex]\angle A=2(30)=\boxed{60^{\circ}}[/tex]

Answer:

∠A = 60

∠B = 30

Complementary angles are angles that add up to 90 degrees, and the measure of ∠A is twice as much as ∠B

60 + 30 = 90

60 / 30 = 2

60 / 2 = 30

Step-by-step explanation:

The other answer is still correct, just thought I'd make it simpler.

Hope this helps!

Answer:

b

Step-by-step explanation:

Answer:

The correct option is (c).

Step-by-step explanation:

The given expression is :

[tex]14(\dfrac{3}{2}\times \dfrac{1}{4})[/tex]

We need to use the associative property to make it easier.

The associative property for multiplication is as follows :

[tex]A\times (B\times C)=(A\times B)\times C[/tex]

We have,

[tex]A=14, B=\dfrac{3}{2}\ and\ C=\dfrac{1}{4}[/tex]

[tex]14(\dfrac{3}{2}\times \dfrac{1}{4})=(14\times \dfrac{3}{2})\times \dfrac{1}{4}[/tex]

Hence, the correct option is (c).

Answer:

$66

Step-by-step explanation:

Let the money that you started off with be called x.

You spend $62 on a game: x-62

You receive $50 for painting a fence: x-62+50 = x-12

You give $10 to your friend: x-12-10 = x-22

You have $44 left: x-22=44, x=44+22=66