I need help thank you

Correct Question:

Type the correct answer in the box. Use numerals instead of words. Consider this expression. [tex]\sqrt{a^2} - 7 + |b|[/tex] When a = 2 and b = -4, the value of the expression is​

Answer:

[tex]\sqrt{a^2} - 7 + |b| = -1[/tex]

Step-by-step explanation:

Given

[tex]a=2[/tex]

[tex]b = -4[/tex]

Required

Determine [tex]\sqrt{a^2} - 7 + |b|[/tex]

To solve this, we simply substitute the values of a in the given expression

[tex]\sqrt{a^2} - 7 + |b|[/tex]

[tex]\sqrt{a^2} - 7 + |b| = \sqrt{2^2} - 7 + |-4|[/tex]

Express 2² as 4

[tex]\sqrt{a^2} - 7 + |b| = \sqrt{4} - 7 + |-4|[/tex]

Express square root of 4 as 2

[tex]\sqrt{a^2} - 7 + |b| = 2 - 7 + |-4|[/tex]

[tex]|-4| = 4[/tex]

So, we have

[tex]\sqrt{a^2} - 7 + |b| = 2 - 7 + 4[/tex]

[tex]\sqrt{a^2} - 7 + |b| = -1[/tex]

Hence, the result of the expression is -1

Answer:

14

Step-by-step explanation:

When x = 3 and y = 1,

5x - y works out to 5(3) - 1 = 14

Answer:8x^5 is the leading term

Step-by-step explanation:

Answer:

[tex]a=63[/tex]

Step-by-step explanation:

[tex]14=\frac{2a}{9}[/tex]

Switch sides:

[tex]\frac{2a}{9}=14[/tex]

Multiply both sides by 9:

[tex]\frac{9\cdot \:2a}{9}=14\cdot \:9[/tex]

[tex]2a=126[/tex]

Divide both sides by 2:

[tex]\frac{2a}{2}=\frac{126}{2}[/tex]

[tex]a=63[/tex]

Answer:

y=x^4 is a function

Explanation:

A function is defined as given an equation, there should be only one corresponding, y value for any x value. In the table from the picture you attached, it is shown as for each x value, there is one corresponding y value. Therefore, x^4 is a function.

The given expression y = x⁴ is a function.

A function is defined as the expression that set up the relationship between the dependent variable and independent variable. Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

A function is defined as given an equation, there should be only one corresponding, y value for any x value. In the table from the picture you attached, it is shown as for each x value, there is one corresponding y value.

Therefore, the given expression y = x⁴ is a function.

To know more about a function follow

https://brainly.com/question/26857518

#SPJ2

Step-by-step explanation:

yikes that's hard GG bro

Answer:

The winner received 12,800 votes and the loser received 12,400.

Step-by-step explanation:

Divided the votes in half, then took 100 votes from the winner, defined W, and added 100 to the loser, defined L to give the Loser a lead of 200. Then switch 300 votes from the losers number to the winner. You'll end up with 12,800 and 12,400 and you can check by switching 300 voters from winner (12,800) to loser (12,400) to make the loser win by 200 votes. 12,800 and 12,400 also add up to 25,200.

Answer:

693/11. Cris is driving 63 mph.

Step-by-step explanation:

if you want to see how many miles he would go is 13 hours multipy 13 by 63 which is 819.

He would go  819 miles in 13 hours.

hope this helps.

Step-by-step explanation:

First find 1 hour=how many miles

Answer:

U need to copy and paste more of the question

Step-by-step explanation:

Start copy at the top go all the way to the bottem of the question and paste into brainly.

use ctrl c for copy and crtl v for paste

Answer:

-24

Step-by-step explanation:

first multiply -3 and 5 to get -15

so it will be 12-21-15 then subtract 12-21 and you get -9

then do -9-15=24  

hope this helps :)

Answer:

(-8,-3)

Step-by-step explanation:

This question is similar to the vertex form of a quadratic equation, so you can think of this equation like f(x) = (x-h)+k. Using this equation, you can determine the vertex (h,k) of |x+8|-3, which is (-8,-3).

Step-by-step explanation:

Its B

edge 2021 :))

Answer:

  -1

Step-by-step explanation:

The total number of minus signs is odd, so the product is negative.

  (-1)^39 = -(1^39) = -1

Answer:

See below

Step-by-step explanation:

So for this one we can estimate

-1^1=-1

-1^2=1

-1^3=-1

............

And so on

The pattern shown here is that if it is odd then the answer is -1 and the answer is 1 if it is even

So think..

Is 39 odd or even?

39 is odd so the answer is -1

Also you can calculator it

Answer:

72

Step-by-step explanation:

2(8) + 7(8)

16 + 56

72

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

85

80

87

67

88

95

91

78

75

84

90

94

82

98

80

89

92

68

75

91

87

76

91

85

STEM | LEAF

6 | 7 _ 8

7 | 5 _ 5 _ 6 _ 8

8 | 0_0_2_4_5_5_7_7_8_9

9 | 0_1_1_1_2_4_5_3

The statistics which could be obtained fro the data include; The range = (98 - 67) = 31

Number of observations = 24

Mode of data = 91 ( most occurring number)

Median = 50th percentile = 86

Mean = Σx / N

= Σx = 2028

Mean = 2028 / 24 = 84.5

Answer:

Step-by-step explanation:

In the problem, there are two types of antifreeze

antifreeze I and

antifreeze II

antifreeeze I 20 ----70 gal

Antifreeze II 60 ----- x gal

Total 50 ---------------- (70 + x ) gal

20*70+60*x=50(70+x)

1400+60x=3500+50x

60x-50x=3500-1400

10x=2100

x= 210

x=210 gaL 60 % Antifreeze II

Answer:

Quantitative data

Step-by-step explanation:

When we measure something, then we can quantify them. By also making a count, we are trying to quantify a particular entity.

Now in this case, we know that age is something we can quantify or measure. By nothing the difference between the year of birth and the present year, we can simply give the number of years or simply how

old a person is.

This clearly show that we have measured the count of that entity. This makes age an example of quantitative data

categorical data Step-by-step explanation:

Answer:

70

Step-by-step explanation:

Answer:

Step-by-step explanation:

Since the triangle is a right angled triangle we can use Pythagoras theorem to find the missing side x

Using Pythagoras theorem we have

a² = b² + c²

where

a is the hypotenuse

b and c are the other two sides

So we have

[tex] {x}^{2} = {12}^{2} + {9}^{2} \\ {x} = \sqrt{ {12}^{2} + {9}^{2} } \\ x = \sqrt{144 + 81} \\ x = \sqrt{225} [/tex]

We have the final answer as

Hope this helps you

Step-by-step explanation:

1-(2x+4)= 1-2x-4= -2x-3

Answer:

16 ounces per can

Step-by-step explanation:

64/4 oz = 4/4 cans

16 oz = 1 can

The unit rate is 0.16 ounces per can.

Answer: X= -2

Step-by-step explanation:

-4+4x+4=-24-8x

4x=-24-8x

12x=-24

X=-2

Answer:

$240.13

Step-by-step explanation:

all you do in this question is muitply

649 by 0.37 which equal 240.13

Answer:

240.13

sounds simple

.37 x 649 = 240.13

Answer:

21 rides

Step-by-step explanation:

let x = number of rides you can ride

32.50 + 0.80x [tex]\leq[/tex] 50

subtract 32.50 from both sides

0.8x [tex]\leq[/tex] 17.5

divide the left and right by 0.8

x [tex]\leq[/tex] 21.875

this means you can ride 21 times, because you can't ride a ride unless you can afford the whole cost

how to check; 32.50 + 0.8(21) is 49.30 and 80 cents more would go over your 50 dollar spending limit

Answer: 5.73

Step-by-step explanation:

Answer:

Step-by-step explanation:

y - 6 = -9/7(x - 14)

y - 6 = -9/7x + 18

y = -9/7x + 24

Answer:   52°

Step-by-step explanation:

[tex]\sin \theta=\dfrac{\text{side OPPOSITE of angle}}{\text{HYPOTENUSE}}\\\\\\\sin \theta =\dfrac{23}{29}\\\\\\.\quad \theta=\sin ^{-1}\bigg(\dfrac{23}{29}\bigg)\\\\\\.\quad \theta =52.47^o[/tex]

Rounded to the nearest degree: Ф = 52°

Step-by-step explanation:

Hey there!

Here;

The figure given is a Right angled triangle.

Let the unknown angle be a refrence angle.

Now,

p = 23

h = 29

In ratio of sin there is 'p' and 'h'. So, using sin ratio.

[tex] \sin( \alpha ) = \frac{p}{h} [/tex]

[tex] \sin( \alpha ) = \frac{23}{29} [/tex]

[tex] \alpha = { \sin}^{ - 1} (0.7931034)[/tex]

[tex] \alpha = 52.47°[/tex]

Therefore the the angle is 52°.

Hope it helps..

Answer:

(6.5, -7.5)

Step-by-step explanation:

Use the midpoint formula (x1 + x2) / 2 , (y1 + y2) / 2

Plug in the points:

(-3 + 16) / 2 , (-5 - 10) / 2

13/2 , -15/2

6.5, -7.5

So, the coordinates of midpoint M are (6.5, -7.5)

Answer:

strongly negative

Step-by-step explanation: