Determine if the ordered pair (-5, -1) is a
solution of 2x - y =-11.

Answer:

45/4

Step-by-step explanation:

We can interpret the question to have two equation which can be solve simultaneously

a+b=7------------(1)

a-b=2------------(2)

From eqn(2) make a subject of formula

a=2+b--------(3)

Substitute the (3) into eqn(1)

a+b=7------------(1)

2+b+b=7

2b=7-2

2b=5

b=5/2

From equation (3) substitute value of b to find a

a=2+b--------(3)

a= 2+5/2

a=9/2

Then What is the value of a x b ?

9/2× 5/2

=45/4

Answer:

11 1/4

Step-by-step explanation:

a+b=7

a-b=2

adding equations gives us 2a=9  so a= 9/2

b= 7- 9/2= 14-9/2=5/2

therefore a x b= 9/2 x 5/2 =45/4

45/4 in a mixed number is 11 1/4

Answer:

Let C be the position of the meteorological station, B the position of the balloon and CB be the cable.

Let the height of the balloon from the ground be AB=hmetres.

In a right angled triangle ACB

BC

AB

=sin60

∘

⇒

200

h

=

2

3

since

sin60

∘

=

2

3

⇒h=200×

2

3

⇒h=100

3

∴h=100×1.732=173.2 since

3

=1.732

Hence, the height of the balloon above the ground is 173.2m

By inscribing the given information in a right triangle, we will see that the ballon is 167.7 meters above the ground.

Think in the situation as in a right triangle, you have a hypotenuse that is equal to the length of the cable, you know one angle of 57°, and the opposite cathetus to this angle represents the height at which the ballon is, this is what we want to find.

Using the relation:

sin(θ) = (opposite cathetus)/hypotenuse.

Where:

Replacing that we get:

sin(57°) = height/200m

sin(57°)*200m = height = 167.7m

So the balloon is 167.7 meters above the ground.

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Answer:

[tex]y=\frac{5}{6}x-2[/tex]

Step-by-step explanation:

Let the equation of a line passing through a point [tex](x_1,y_1)[/tex] and slope [tex]m_1[/tex] is,

[tex]y-y_1=m_1(x-x_1)[/tex]

Equation of the second line has been given as,

6x + 5y = 10

Slope-intercept form of the equation will be,

5y = -6x + 10

y = [tex]-\frac{6}{5}x+10[/tex]

Here slope of the line [tex]m_2=-\frac{6}{5}[/tex]

If both the lines are perpendicular,

By the property of perpendicular lines,

[tex]m_1\times m_2=-1[/tex]

[tex]m_1\times (-\frac{6}{5})=-1[/tex]

[tex]m_1=\frac{5}{6}[/tex]

Therefore, equation of the line passing through (6, 3) and slope = [tex]\frac{5}{6}[/tex] will be,

y - 3 = [tex]\frac{5}{6}(x-6)[/tex]

y = [tex]\frac{5}{6}x-5+3[/tex]

[tex]y=\frac{5}{6}x-2[/tex]

Answer:

60.96cm

Step-by-step explanation:

So if 12 beads=4 inches

        72 beads=72 beads*4 inch

                            12 beads

That will give you 24inches. inch-cm multiply by 2.54cm

=60.96cm of rope

Answer:

the bottom one

Step-by-step explanation:

They are both the same ab and bc but im not entirely  sure

Because AB, AC, and BC describe the same line, we conclude that the last option is the false one.

On the graph, we can see a line that contains points A, B, and C.

Now we want to see which statement is false.

Now, because A, B, and C are on the same line, is trivial that:

AB, AC, and BC (these 3 lines) have the same slope, because these are 3 different names for the exact same line.

Then we can conclude that the incorrect statement is the last one.

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Answer:

B. -2/7

Step-by-step explanation:

Rise over run. The graph also goes down so it is negative.

Answer: I’ll explain it in simpler terms for you. A proportional relationship is one in which two quantities vary directly with each other. Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional. An example of a proportional relationship is simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error. Hope this helps! :D

Answer:

D is the answer

Step-by-step explanation:

:)

Answer:

yes

Step-by-step explanation:

35:40=0.875

21:24=0.875

Answer:

No

Step-by-step explanation:

35 divided by 40 is 0.875 and 21 divided by 24 are 0.875. These are the same answer ( 0.875 = 0.875) so they are equivelent. Hope this helped! If it did, please mark me as brainliest! Thanks!        

Answer:

Step-by-step explanation:

Step one:

given data

we are told that the uber charges $1.25 per mile

and that Leo also gave a tip of $5

the function for the total charge is given as

y=mx+c

Step two:

we will use the notation m for the number of miles traveled

given that the total trip is $16.25

16.25=1.25m+5

solving for m we have

16.25-5=1.25m

11.25=1.25m

divide both sides by 1.25

m=11.25/1.25

m=9

So he travelled 9miles

Answer:

B

Step-by-step explanation:

Supplementary angles sum to 180°

If one angle is 77°, then the other angle is

180° - 77° = 103° → B

I would have to say B

Answer:

the slope is negative....

Answer:

The Answer is 16.

Step-by-step explanation:

I took the test. I hope this helped! :)

The remainder when 73,847 is divided by 43 will be 16.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The mathematical expression is,

''73,847 is divided by 43''

Now,

Find the remainder when 73,847 is divided by 43 as;

43 ) 73,847 (1717

    - 43

   --------

      308

    - 301

     -------

          74

          43

        -------

          317

        - 301

         ------

           16

Thus, The remainder when 73,847 is divided by 43 will be 16.

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Answer:

Um... D

Step-by-step e xplanation:

A14 adaults 11 kids

Step-by-step explanation:

Answer: impossible.....

Step-by-step explanation:

Answer:

No, it is not proportional

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

anything that is powered by 0 is 1 so 2 to the power of 0 is 1 times 13 which is 13, 13 added by 9 is 21

Hope this helps!

Complete Question

The alternative hypothesis is [tex]H_a : p > 0.9[/tex] and it is found the statistic is 1.04 Test the claim with 5% significance level. is the test left right or two tailed and what is the p value

Answer:

    This a right tailed test

  The p-value is   p-value  = 0.14917

Step-by-step explanation:

From the question we are told that

   The alternative hypothesis is [tex]H_a : p > 0.9[/tex]

   The test statistics is  [tex]z = 1.04[/tex]

    The level of significance is  [tex]\alpha = 0.05[/tex]

Generally this a right tailed test because from the alternative hypothesis p > 0.9 i.e due to the greater than sign signifying that test will be focusing on the right tail of the normal curve

From the z table the area under the normal curve to the right corresponding to 1.04 is  

     P( Z>  1.04 )  = 0.14917

Generally the p-value is mathematically represented as

      p-value  =  P( Z>  1.04 )  = 0.14917

Answer:

-9.

Step-by-step explanation:

Step-by-step explanation:

this is my answer you should mind your own business

Answer:

hour 3 to hour 4

Step-by-step explanation:

that is where the slope is the least steep

Answer:

the correct answer is x=-4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Take 125 and divide by 500 this equals 0.25 or 25%

Answer:

x=25

Step-by-step explanation:

[tex]\frac{125}{500} *\frac{x}{100}[/tex] this is just a typical percent equation

[tex]12500=500x[/tex]  cross multiply

x=25 divide by 500 to get the answer

Answer:

wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww

Step-by-step explanation:

Answer:

Step-by-step explanation:

-22

Answer:

G

Step-by-step explanation:

The answer choice is G.

Answer:

5

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

8978.9

Step-by-step explanation:

MULTIPLY THE THE GIVEN AND

8.89  ×  1010 = 8978.9

THEN THE RESULT WOUD BE THE STANDARD NOTATION.