In your opinion, which step includes a mistake:

when solving the expression
(6 1/2 + 2 3/4)-1.5×(4.5÷0.5)

should ALL parentheses be included as step one, or one set in step one and another in step 2?​

Answer:

Please where is the number line, if am to ask

Answer:

i cannot see the number line

Answer:

A​ least-squares solution of is a vector such that for all in .

C. The statement is true because the general​ least-squares problem attempts to find an that maximizes .

Step-by-step explanation:

The above statement is actually the one that validates the least-square solution statement.

Answer:

C. The statement is true because the general​ least-squares problem attempts to find an that maximizes.

Step-by-step explanation:

Hope this helps

Answer: A

Step-by-step explanation:

just took the test

Answer:

5550

Step-by-step explanation:

if one day is 185 and he works for 30 days you just have to multiply them

Answer:

Hello! answer: 21

Step-by-step explanation:

25 × 3 = 75

7 × 3 = 21 so n = 21 HOPE THAT HELPS!

Answer:

Answer: 21

Step-by-step explanation:

25 × 3 = 75

7 × 3 = 21 so = 21

Answer:

D prefer romance over poetry 2:1

Step-by-step explanation:

Poetry is 20%

Romance is 40%

[tex]\frac{40}{20} =\frac{2}{1}[/tex]

Answer: D. Students prefer romance to poetry by a ratio of 2:1

Explanation:

40% of students prefer romance

20% of student prefer poetry

40:20 = 20:10 = 2:1

Answer:

3.

Step-by-step explanation:

15 - 12 = 3.

The ends of the box are the lower and upper quartiles.

The difference  upper - lower = the interquartile range.

Answer:b

Step-by-step explanation:

Answer:

5/18

Step-by-step explanation:

The attached chart shows all 36 outcomes, equally likely.

There are 6 outcomes that are doubles (along a diagonal), 5 outcomes that have a sum of 8, but the (4, 4) outcome should only be counted once!

You're interested in 6 + 5 - 1 = 10 outcomes out of the 36 possible outcomes.

Probability of double or sum = 8:  10/36 = 5/18

Answer:

-7

Step-by-step explanation:

Sum means addition:

18 + 0 + (-4) + (-12) + 6 + (-15) = -7

You can also combine like terms to get:

24 + (-31) = -7

Answer:

b) -7

Step-by-step explanation:

hope this helps you :)

Answer:

3

Step-by-step explanation:

the frequency is the number of students. Add the frequency for 30-39 and 40-49, which is 2+1 =3

Answer:

Step-by-step explanation:

C and E

9514 1404 393

Answer:

  11

Step-by-step explanation:

Point D can be found to be ...

  D = (4C +B)/5 = (4(11, -2) +(6, 13))/5 = (50, 5)/5 = (10, 1)

The sum of the coordinates of D is ...

  10 +1 = 11

Answer:

LIMIT

The policy will pay for up to

$100,000 of damage to

another person's property.

The policy will pay only

$100 per incident for a

tow truck

DEDUCTIBLE

The policyholder must pay

the first $1,000 of repair

expenses before insurance

will pay for anything,

PREMIUM

The policy offers coverage

for a cost of $178 per month

The policyholder must

pay $500 semiannually

to the insurance provider

Step-by-step explanation:

LIMIT is the maximum amount an insurer will pay toward a covered claim

DEDUCTIBLE is the amount paid out of pocket toward a covered claim

PREMIUM is the amount paid regularly to keep the policy in force.

B

Step-by-step explanation:

[tex]x - 12 = - 4[/tex]

[tex] put \: like \: terms \: together\\ x = - 4 + 12 \\ solve\\ x = 8[/tex]

Step-by-step explanation:

f(X)=4x+2

f(3)=4×3+2

f(3)=14

Answer:

(x+2)^2 + y = √45 ^2

Step-by-step explanation:

this should be right

Answer:

[tex](x + 2)^{2} + y^{2} = 45[/tex]

Step-by-step explanation:

The radius (r) of the circle is the distance between (-2, 0) and (-5, -6)

r = [tex]\sqrt{(-2 + 5)^{2} + (0 + 6)^{2} } = \sqrt{3^{2} + 6^{2} } = \sqrt{9 + 36} = \sqrt{45}[/tex]

[tex]r^{2}[/tex] = 45

[tex](x + 2)^{2} + y^{2} = 45[/tex] is the equation of the circle

Answer:

310.86

Step-by-step explanation:

so V=Bh

and B=pi *r^2

so that means 3.14*9 (since 3^2 is 9)

3.14*9=28.26

then 28.26*11= 310.86

Answer:Its 0

Step-by-step explanation:

It just is ok

Answer:

0.0588 = 5.88% probability that a middle-aged man with diabetes is very active

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Has diabetes.

Event B: Is very active.

Probability of having diabetes:

To find this probability, we take in consideration that:

It also found that men who were very active (burning about 3,500 calories daily) were a fourth as likely to develop diabetes compared with men who were sedentary. Assume that one-fifth of all middle-aged men are very active, and the rest are classified as sedentary.

So the probability of developing diabetes is:

x of 4/5 = x of 0.8(not active)

x/4 = 0.25x of 1/5 = 0.2(very active). So

[tex]P(A) = 0.8x + 0.25*0.2x = 0.85x[/tex]

Probability of developing diabetes while being very active:

0.25x of 0.2. So

[tex]P(A \cap B) = 0.25x*0.2 = 0.05x[/tex]

What is the probability that a middle-aged man with diabetes is very active?

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05x}{0.85x} = \frac{0.05}{0.85} = 0.0588[/tex]

0.0588 = 5.88% probability that a middle-aged man with diabetes is very active

Answer:

we need 6 scoops of sugar

Answer:

weres the graph?

Step-by-step explanation:

Answer:

[tex]x = 8\±\sqrt{10[/tex]

[tex]a =8[/tex]    [tex]b = 10[/tex]

Step-by-step explanation:

Given

[tex]x^2 - 16x + 54 = 0[/tex]

Required

Complete the square

[tex]x^2 - 16x + 54 = 0[/tex]

Subtract 54 from both sides

[tex]x^2 - 16x + 54 -54= 0-54[/tex]

[tex]x^2 - 16x = -54[/tex]

--------------------------------------------------

Take half of - 16

[tex](-16/2) = -8[/tex]

Square the result

[tex](-8)^2 = 64[/tex]

Add the squared result to both sides of the equation

--------------------------------------------------

So, we have:

[tex]x^2 - 16x +64= -54+64[/tex]

[tex]x^2 - 16x +64= 10[/tex]

Expand

[tex]x^2 - 8x - 8x + 64 = 10[/tex]

Factorize

[tex]x(x - 8) - 8(x - 8) = 10[/tex]

Factor out x - 8

[tex](x - 8)(x - 8) = 10[/tex]

[tex](x - 8)^2 = 10[/tex]

Take square roots

[tex]x - 8 = \±\sqrt{10[/tex]

Solve for x

[tex]x = 8\±\sqrt{10[/tex]

We have:

[tex]x = a - \sqrt{b}[/tex]

[tex]x = a + \sqrt{b}[/tex]

By comparing the above with: [tex]x = 8\±\sqrt{10[/tex]

Answer:

Step-by-step explanation: