Can someone please help me l just need these question.

Answer:

156

Step-by-step explanation:

-7(-3)+(-9)(5)(-3)

21+135

156

Answer:

156

Step-by-step explanation:

-7x+y5x

(-7)(-3)+(-9)*5*(-3)

21+135

156

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Answer:

highest temperature would be

-22 + 139 = 117°F

Answer:

please one times search answer in search engines ok

Answer:

Yes

Step-by-step explanation:

A rational number is a number that can be expressed as an integer or the quotient of an integer divided by a nonzero integer. This means that any terminating decimal or mixed number or integer is rational, including 4.06.

Answer:

x = 1/2

Step by step explanation:

Two numbers a and b are each greater than zero.

i.e a > 0 and b > 0

And;

[tex] \sqrt{a} \: = \: \sqrt[3]{b} [/tex]

Since the square root of a is equal to cube root of b then,

a = b = 1

[tex] {a}^{2x \: - \: 1} \: = \: b[/tex]

[tex] {1}^{2x \: - \: 1} = {1}^{0} [/tex]

2x - 1 = 0

x = 1/2

Two numbers are 'a' and 'b'.

And a > 0, b > 0

[tex]\sqrt{a}=\sqrt[3]{b}[/tex]

[tex]a^{\frac{1}{2} }=b^{\frac{1}{3}}[/tex]

[tex]a=(b)^{\frac{2}{3} }[/tex]

We have to find the value of [tex]x[/tex] if [tex]a^{2x-1}=b[/tex],

By substituting the value of [tex]a[/tex] in the given expression,

[tex](b^{\frac{2}{3}})^{2x-1}=b[/tex]

Now use the laws of exponents,

[tex]b^{\frac{2}{3}(2x-1)}=b[/tex] [Since, [tex](a^m)^n= a^{mn}[/tex]]

By comparing the exponents on both the sides,

[tex]\frac{2}{3}(2x-1)=1[/tex]

[tex]2(2x-1)=3[/tex]

[tex]4x-2=3[/tex]

[tex]4x=5[/tex]

[tex]x=\frac{5}{4}[/tex]

[tex]x=1.25[/tex]

Learn more,

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Answer:

6 – x ft

Step-by-step explanation:

If a 6-foot board is cut in two pieces, both lengths could be anything that add up to 6 feet since the problem did not specify where the board was cut.

So if one piece is x feet long, the other must be 6 - x feet long because:

x + (6 – x) = 6

Answer:

28

Step-by-step explanation:

-7*2=-14*-2=28

Let it be x

He spent x/2 dollars then

[tex]\\ \sf\longmapsto \dfrac{x}{2}+8=13[/tex]

[tex]\\ \sf\longmapsto \dfrac{x+16}{2}=13[/tex]

[tex]\\ \sf\longmapsto x+16=13(2)=26[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{26}{16}[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{13}{8}[/tex]

[tex]\\ \sf\longmapsto x=1.6\$[/tex]

[tex]\\ \sf\longmapsto Weekly allowance=13+7(1.6)[/tex]

[tex]\\ \sf\longmapsto 13+112=125[/tex]

Answer:

A. 13.95

Step-by-step explanation:

By using the sine rule:

Answer:

12k^2 + 23k - 9

Answer:

ummm I think u want the answer x= 11 1/4

Answer:

x = 45/4

Step-by-step explanation:

4(x - 5) = 25

4x - 20 = 25

4x - 20 + 20 = 25 + 20

4x = 45

4x/4 = 45/4

x = 45/4

Step-by-step explanation:

1/4 + 1/2 + ( 3 × 3/4) +( 3×1) + (4 × 1 1/4) + 1 1/2 = 12.5 hours

Answer:

200000 gallons

Step-by-step explanation:

Graphs are used to show the relationship between two variables. In the given graph, as the value of x increases, the value of y decreases.

Given that:

[tex]y = \frac{10}{x}[/tex]

The above function is an inverse function.

This means that:

As the value of x increases, the value of y decreases

Take for instance:

[tex]x= 1[/tex]

[tex]y = \frac{10}{1} = 10[/tex]

Now, [tex]x = 2[/tex]

[tex]y = \frac{10}{2} = 5[/tex]

Notice that:

As x increases from 1 to 2, the corresponding values of y decreases from 10 to 5

Hence, (b) is correct

Read more about graphs at:

https://brainly.com/question/1971145

Answer:

2nd, y=x-2

ignore this, just for 20char limit

Answer:

-1.6

Step-by-step explanation:

4x-2/5

=-8/5

=-1.6

Answer:

-4(-4,2)

(16,-8)

option C is correct

Answer:

<16,-8>

Step-by-step explanation:

-4/9 ( 18/2 v)

First multiply

-4v

-4 < -4,2>

<16,-8>

Answer:

3x2-12x+y

Step-by-step explanation:

2x-6y+3x2+7y-14x

3x2 can't combine with anything

combine the 2x and -14x to get -12x

combine the -6y and 7y to get y

Answer:

perimiter if not add cause your doing inside so perimiter

Step-by-step explanation:

Answer:

x : 15

y : 8

or

y : 15

x : 8

base of your graph

Answer:

Answer: A real number that is not rational is called irrational. Irrational numbers include √2, π, e, and φ. The decimal expansion of an irrational number continues without repeating.

Answer:

b and c

step by step explanation:

14+(-9)

14-9=5

c) -5-(-10)

-5+10=5

Step-by-step explanation:

Let's check them,

Hence, the expression -5-(-10) and 14+(-9) have a difference of 5 .

Answer:

-8x(8yz)(-8)

Step-by-step explanation:

(-2x^2yz^-2)4

-8x(8yz)(-8)

9514 1404 393

Answer:

  27

Step-by-step explanation:

Evaluating this expression according to the order of operations is a straightforward calculator problem.

  = (81 ÷ 27)³ = 3³ = 27

__

You can also use the rules of exponents to simplify this before evaluating.

  (a^b)^c = a^(bc)

  (a^b)/(a^c) = a^(b-c)

__

  = ((3²)² ÷ 3³)³ = (3⁴ ÷ 3³)³ = (3¹)³ = 3³ = 27

Answer:

y = -3/4x + 14

Step-by-step explanation:

The slope of a perpendicular line is the opposite reciprocal of the original line.

4/3x -> -3/4x

Now we need to find the y-intercept and we can do that by using the slope intercept form expression [ y = mx + b ].

11 = -3/4(4) + b

11 = -3 + b

14 = b

Put everything we know and solved for back into the expression.

y = -3/4x + 14

Best of Luck!

Answer:

- 3

Step-by-step explanation:

Given

7 - 2h ( substitute h = 5 into the expression )

= 7 - 2(5)

= 7 - 10

= - 3

On evaluating the function at h = 5, we get -

f(5) = - 3.

We have a function -

f(h) = 7 - 2h

We have to find the value of f(h) at h = 5.

f(x) = Sin( [tex]\frac{\pi }{x}[/tex] )

f(2) = Sin( [tex]\frac{\pi }{2}[/tex] )

f(2) = 1

According to the question, we have -

f(h) = 7−2ℎ

Now, evaluating the function at h = 5, we get -

f(5) = 7 - 2 x 5 = -3

Hence, on evaluating the function at h = 5, we get -

f(5) = - 3.

To solve more questions on evaluating functions, visit the link below -

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Step-by-step explanation:

1 - 5 is not equal to 8

2 - 16 is not equal to 8

3 - 12 is equal to 12

4 - 5 is not equal to 17

5 - 0 is not equal to 4

Step-by-step explanation:

1. 0.07 is the lowest like 7 cents

2. 0.077 is the second one and closer to 8 cents

3. 0.7 the 3rd and like 70 cents

4. 7.0 the greatest like 7 dollars

Answer: The vaccine help prevent  cases with the virus, but if you have the virus and the vaccine, you do not fare as well as you would without the vaccine.