Subtract 10x + 7y from -15x+6y​

Answer:

Step-by-step explanation:

(x + 2)/2 = -2

x + 2 = -4

x = -6

(y + (-9))/2 = -1

y - 9 = -2

y = 7

(-6, 7)

answer is C

Answer: B

(height of a building in feet, height of the building in inches)

Answer:

62/9

Step-by-step explanation:

.88888888 is 8/9

Multiply 9*6 to get the whole amount

9*6 = 54

Add 8 because that's the fractional amount.

54 + 8 = 62

So 62/9 will give you 6.8888888889

Answer:

greater than 1

Step-by-step explanation:

Answer:

greater than 1

Step-by-step explanation:

Answer:

Let A (2a, 4a)

     B(2a, 6a)

    C (2a + sqrt (3a), 5a)

Side AC:

[tex]\sqrt{(2a+\sqrt{3a}-2a)^2+(5a-4a)^2 }=\sqrt{3a+a^2}[/tex]

Side BC:

[tex]\sqrt{(2a+\sqrt{3a}-2a)^2+(5a-6a)^2 }=\sqrt{3a+a^2}[/tex]

Hence AC = BC

It is an isoceles triangle.

Side AB:

[tex]\sqrt{(2a-2a)^2+(6a-4a)^2 }=\sqrt{2a^2}=2a[/tex]

It proves that the triangle is NOT an equilateral triangle.

Answer:

8

Step-by-step explanation:

3/5=0.6

32^0.6=8

Ans.8

Answer:

She bought 2 pairs of jeans

Step-by-step explanation:

$82- $13-$13-$13-$13=$30

$15*2=$30

$30=$30

she bought 2 pairs of jeans

Answer:

Ezequiel's final grade is 8

Step-by-step explanation:

The average (mean) of Ezequiel's grade is:

[tex]\frac{(8.3+6.8+9.4)}{3} \approx 8.16666[/tex]

which rounded to the nearest unit is 8.

Answer:

It would be 8 :)

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

2x-4= -8×-3= 24

When you look at the P.E.M.D.A.S. method you have to do what's in the PERENTESSE first so that means 2x-4 is the first thing that I are solving and you get -8 now you have to multiply -8 by -3 then you get 24

Answer:

3 and 18

Step-by-step explanation:

let x be the first number

let 6x be the second number

x + 6x = 21

7x=21

x=21/7

x=3

second number =6x

second number 6x3= 21

Answer:

See below.

Step-by-step explanation:

Refer to the graph.

The range of a graph is the span of y-values it covers.

From the graph, we can see that the span of y-values is all values greater than or equal to 0.

Therefore, our range is, in interval notation:

[tex][0,\infty)[/tex]

Note that we use brackets with the 0 because 0 is included in our range.

In set notation, this is:

[tex]\{y|y\in\mathbb{R},y\geq 0\}[/tex]

Answer:

1/ [tex]x^{-8}[/tex]

Step-by-step explanation:

when there is two powers the correct method to solve is to multiply them so

4 * -2 = -8

Answer:

27

Step-by-step explanation:

5×6-(6/2)

=30-3

=27

Answer:

[tex] 27[/tex]

Step-by-step explanation:

[tex]5w - \frac{w}{x} = \frac{5w}{1} - \frac{w}{x} = \frac{5(6)}{1} - \frac{6}{2} = 30 - 3 = 27[/tex]

or

[tex] \frac{5(6) }{1} - \frac{6}{2} = \frac{30}{1} - \frac{6}{2} = \frac{60 - 6}{2} = \frac{54}{2} [/tex]

Answer:

C.

x = -3/4

y = -3 1/2

Step-by-step explanation:

We can graph the systems of inequalities to find our answer. Where the 2 graphs intersect will be our solution point.

Answer:

Step-by-step explanation:

[tex]\left(w^8\right)^8\\[/tex]

[tex]\mathrm{Apply\:exponent\:rule:\:}\left(a^b\right)^c=a^{bc}[/tex]

[tex]\left(w^8\right)^8=w^{8\times\:8}\\=w^6^4[/tex]

QUESTION:

QUESTION:estimate the equation 12+19.61.

QUESTION:estimate the equation 12+19.61.Answer:

QUESTION:estimate the equation 12+19.61.Answer:12+19.61 =31.61.

Answer:c

Step-by-step explanation:

This is how it should be when you are representing an exponential equation to a logarithmic equation

[tex]y=a^{x}[/tex]→log y base a =x

therefore the answer is c

The exponential equation which rewrites the logarithmic equation is given by 6ˣ = 18

The power to which a number must be increased in order to obtain another number is known as the logarithm. A power is the opposite of a logarithm. In other words, if we subtract an exponentiation from a number by taking its logarithm

The properties of Logarithm are :

log A + log B = log AB

log A − log B = log A/B

log Aⁿ = n log A

Given data ,

Let the logarithmic equation be represented as A

Now , the value of A is

log₆ 18 = x

From the properties of logarithm , we get

log Aⁿ = n log A

On simplifying , we get

6ˣ = 18

where the value of x = 1.61314

Hence , the exponential equation is 6ˣ = 18

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Answer:

180°

Step-by-step explanation:

JM is the diameter of the circle with center L.

[tex] \huge \red{ \boxed{\therefore m\widehat{(JKM)} = 180\degree}} \\ [/tex]

Answer:

x =-3

Step-by-step explanation:

1x + 2 = 0x + 5

hence 0x simplifies x

1x-0x = 2-5

x = -3

Answer:

the answer will be 2a2  – 2b – 1 because he simplified the expression en He He  simplified it and then substracted tb from the y interecept.hop e yall are doing great  dsorry for that my laptop ins broken and my keyboardletters are fadded so i cant see well but the asnswer is correct.triust me.

Step-by-step explanation:

The expression in its simplified form is 2a² - 2b -1 .

In mathematics, an expression that incorporates variables, constants, and algebraic operations is known as an algebraic expression.

The given expression is -5 + b +2a²-3b + 4.

Simplify the expression as follows:

-5 + b +2a²-3b + 4

= 2a² - 2b -1

Hence, the expression in its simplified form is 2a² - 2b -1 .

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Answer:B - 12ft2

Step-by-step explanation:

Answer:

The elm tree is 40 5/6 inches tall

Step-by-step explanation:

Let

Tallness of the apple tree = x

Tallness of the elm tree= 3 1/2x

Apple tree = 10 2/3 feet tall

Elm tree = 3 1/2x

Where x= 10 2/3

Elm = 3 1/2 (10 2/3)

= 7/2(35/3)

= 7*35 / 2*3

= 245 / 6

= 40 5/6 inches tall

The elm tree is 40 5/6 inches tall

Answer:

$11

Step-by-step explanation:

92=$9.20

100?

920/100x110/92

After this you will get 11 dollars.

That is the amount to send 110 text messages.

The cost to send 110 text messages is $11.

Given that, it cost Paisley $9.20 to send 92 text messages.

Proportion, in general, is referred to as a part, share, or number considered in comparative relation to a whole. Proportion definition says that when two ratios are equivalent, they are in proportion. It is an equation or statement used to depict that two ratios or fractions are equal.

Let the cost to send 110 text messages be x.

Now, 9.20:92::x:110

⇒ 9.20×110=92×x

⇒ 92x=1012

⇒ x=1012/92

⇒ x=$11

Hence, the cost to send 110 text messages is $11.

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Answer:

[tex]g[/tex] = 22.5°

[tex]f[/tex] = 67.5°

Step-by-step explanation:

Let’s create a system of equations for [tex]f[/tex] and [tex]g[/tex].

Complementary angles are two angles that add up to 90°, so [tex]f+g=90[/tex]

Also, [tex]f[/tex] is thrice of g: [tex]f=3g[/tex]

We can now substitute [tex]3g[/tex] in [tex]f+g=90[/tex] for [tex]f[/tex].

[tex]3g + g = 90\\\\4g = 90\\\\g=22.5[/tex]

Now, we can find [tex]f[/tex] by substituting [tex]g[/tex] into either equation.

[tex]f + 22.5 = 90\\\\f = 90-22.5\\\\f = 67.5[/tex]

Hope this helped!

Answer:

No it is not -3 is an integers

Answer:

no: -3 is an integer

Step-by-step explanation:

Answer: 9,000

Step-by-step explanation:

Answer:

.6x - 4 = .83

Step-by-step explanation:

Answer:

  f(a) = 6a -5

Step-by-step explanation:

Assuming your function is ...

  f(x) = 6x -5

The expression f(a) means you replace x with 'a' everywhere in the above function definition:

  f(a) = 6a -5

Answer:

510

Step-by-step explanation:

4,590/9=510