What is the rule when multiplying by 10's?​

Answer:    it took him 9 hours

Answer:

4d−3

Step-by-step explanation:

5d−7−d+4

Combine 5d and −d to get 4d.

4d−7+4

Add −7 and 4 to get −3.

4d−3

The simplified expression is 4d - 3.

Given is an expression 5d - 7 - d + 4 we need to simplify it,

We know that,

An expression is a combination of numbers, variables, and operations that can be evaluated to produce a value.

It can represent a mathematical relationship or a computation.

To simplify the expression 5d - 7 - d + 4, we can combine like terms.

First, let's group the terms with the variable "d" together:

(5d - d) - 7 + 4

Simplifying within the parentheses:

4d - 7 + 4

Combining the constants:

4d - 3

Therefore, the simplified expression is 4d - 3.

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Answer: 56.72 m, 72.6 m

Step-by-step explanation:

Given

The initial angle of elevation is [tex]38^{\circ}[/tex]

after walking 25 m, the angle of elevation is [tex]50^{\circ}[/tex]

In [tex]\triangle ABD[/tex]

[tex]\Rightarrow \tan 38^{\circ}=\frac{h}{x+25}[/tex]

[tex]\Rightarrow h=\tan 38^{\circ}(x+25)\quad \ldots(i)[/tex]

In [tex]\triangle ABC[/tex]

[tex]\Rightarrow \tan 50^{\circ}=\frac{h}{x}\\\\\Rightarrow h=x\tan 50^{\circ}\quad \ldots(ii)[/tex]

From (i) and (ii)

[tex]\Rightarrow x\tan 50^{\circ}=(x+25)\tan 38^{\circ}\\\Rightarrow 1.191x-0.781x=25\times 0.781\\\Rightarrow 0.4104x=19.532\\\Rightarrow x=47.59\approx 47.6\ m[/tex]

[tex]\Rightarrow h=47.6\times \tan 50^{\circ}=56.72\ m[/tex]

The distance of tree bottom and Chidi's  is

[tex]\Rightarrow x+25=47.+25=72.6\ m[/tex]

Answer:

C.34

Step-by-step explanation:

Answer:

Step-by-step explanation:

so we can use [tex]t^{2}[/tex] + 25  as one expression and the find the distance between the points and set the expression equal to that number.  That's our strategy.

dist = the square root  of [tex]x^{2}[/tex]  + [tex]y^{2}[/tex]  

where x and y are the change in x2 to x1 and y2 to y1

P1 = ( -3, -5)

P2 = (2, 7 )

dist = square root of (  [2 -(-3) ]^2  + [7-(-5)]2)

dist = sq rt  ( 5^2 + 12^2 )

dist = sq rt ( 25 + 144)

dist = sq rt (169)

dist = 13

now set our eq.  equal to that number

[tex]t^{2}[/tex] + 25 = 13

[tex]t^{2}[/tex] = -12

this is looking kinda bad, do you know complex numbers?

t = 0 + j 3.46410

hmmm  I'm wondering if you've  left out .. or forgotten some thing in the question?   :/

Answer:

answer is B I hope it helps you

Answer:

YAY

Step-by-step explanation:

Answer:

ayyy im late.. but anyway soo

Answer: 165 different combinations.

Step-by-step explanation:

Here we first need to identify the "selections", and then the number of options for each selection.

Here we have two selections, shorts, and sleeveless blouses.

For shorts, we have 15 options.

For sleeveless blouses, we have 11 options.

The total number of combinations will be equal to the product between the numbers of options for each selection, then the total number of combinations is:

C = 11*15 = 165

Answer:

3. (x-6)

Step-by-step explanation:

x^2-5x-6

--

Find factors of -6 that could be added that equals to -5

Factors=

-6 and 1

x^2-5x-6 factored is (x-6)(x+1)

so the answer would be (3) (x-6)

Answer:

61/60

Step-by-step explanation:

answer:

61 / 60

step-by-step explanation:

5 / 12 + 3 / 5

= 25 / 60 + 36 / 60

= 61 / 60

it would be something like this:

f(x) = 12 + x(4%)

but if you want it in y format then:

y = 12 + x(4%)

Answer:

It would be 100 degrees.

Step-by-step explanation:

Sorry no one answered sooner! Hope i helped!

Lets us start with finding the inner angles of the triangle. The bottom right angle shall be 70 degrees as it is opposite. The 100 degrees shall add together to make 200. 360-200 = 160. 160 / 2 = 80. So, Now we know bottom left angle (80) and bottom right (70). 80 + 70 = 150. In a triangle, angles add to 180 so 180 - 150 = 30. 30 = 2x which means that x = 15

15

Answer:

A

Step-by-step explanation:

[tex]\frac{3}{11} = 0.2727272727[/tex]

27 is repeating so you draw a line over the number

Answer: 0.27 thats the answer hope you pass your grade

Answer: 119

Step-by-step explanation:

just did on iready

Answer:

[tex]m=\frac{2}{5}[/tex]

Step-by-step explanation:

1. To find the slope we need to use the slope formula, [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

2. The points that were given were (0,0) and (5,2). Let's plug those into the formula.

[tex]\frac{2-0}{5-0}[/tex]

[tex]\frac{2}{5}[/tex]

So, your slope would be [tex]m=\frac{2}{5}[/tex]

Hope this helped! C:

30

Factors of 30 are

3,5, and 6

Answer:

$120

Step-by-step explanation:

$1,440/12= $120

Hope this helps :)

Answer:

120

Step-by-step explanation:

1440÷12=120..... .........

Answer:

0.343

Step by step explanation:

 0. 3 4 3

8    2. 7 5 0

− 0      

 2 7    

− 2 4    

   3 5  

 − 3 2  

     3 0

   − 2 4

       6

Answer: Alex’s times for running a mile are Normally distributed with a mean time of 5.28 minutes and a standard deviation of 0.38 seconds. Chris’s times for running a mile are Normally distributed with a mean time of 5.45 seconds and a standard deviation of 0.2 seconds. Ten of Alex’s times and 15 of Chris’s times are randomly selected. Let x Overbar Subscript Upper A Baseline minus x Overbar Subscript Upper C represent the difference in the mean times for Alex and Chris. Which of the following represents the shape of the sampling distribution for x Overbar Subscript Upper A Baseline minus x Overbar Subscript Upper C?

Normal, because both population distributions are Normal.  

Uniform, because the both sample sizes are less than 30.

Skewed right, because the difference in times cannot be negative.

Skewed left, because the sample sizes are less than 30 and the sampling variability is unknown.

Step-by-step explanation: Can someone tell me the answer?

Skewed left, because the sample sizes are less than 30 and the sampling variability is unknown.

Alex’s times for running a mile are Normally distributed with a mean time of 5.28 minutes and a standard deviation of 0.38 seconds.

Chris’s times for running a mile are Normally distributed with a mean time of 5.45 seconds and a standard deviation of 0.2 seconds.

Ten of Alex’s times and 15 of Chris’s times are randomly selected. Let x Overbar Subscript Upper A Baseline minus x Overbar Subscript Upper C represent the difference in the mean times for Alex and Chris.

The standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.

Normal, because both population distributions are Normal.  

Uniform, because both sample sizes are less than 30.

Skewed right, because the difference in times cannot be negative.

Skewed left, because the sample sizes are less than 30 and the sampling variability is unknown.

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Answer:

theres no statements below

Step-by-step explanation:

I can tell you how many ounces of lemon juice (24) and cups of water (12) but you do not have statements so cant help with that, sorry.

Answer: 25.52771

Step-by-step explanation:

i got this answer and it was right :D

The required answer would be 25.48271 if 25.48271 increased by 45 thousandths.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

+ Addition operation: Adds values on either side of the operator.

For example 12 + 2 = 14

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 12 -2 = 10

* Multiplication operation: Multiplies values on either side of the operator

For example 12*2 = 24

We have been given that 25.48271 increased by 45 thousandths.

Therefore, 25.48271 + 45/1000

⇒ 25.48271 + 0.045

⇒ 25.52771

Hence, the required answer would be 25.48271.

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Answer:

35/26 = 1.346153846

Step-by-step explanation:

Answer:

The number of adults tickets sold equals 52.

Step-by-step explanation:

First, we need to establish the system of equations:

x= number of adults tickets sold

y= number of kids tickets sold

10x + 6y= 928

x + y=120

Now, we isolate x in one equation and change it in the other to obtain its value:

x= 120 - y

10(120 - y) + 6y = 928

1,200 - 10y + 6y = 928

272 = 4y

68 = y

x= 120 - 68= 52