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LekaFEV [45]
3 years ago
6

I NEED HELP WITH THIS QUIZ PLEASE EXPLAIN ALL ANSWERS

Mathematics
2 answers:
Stells [14]3 years ago
8 0

Answer:

Step-by-step explanation:

it is a and j

Svet_ta [14]3 years ago
5 0

Answer:

1.D , 2.G, 3. a. 4.f

Step-by-step explanation:

1. We have five x bars so we will represent that as

5x

We have 8 -1 boxes so that add up to be

- 8

On the right side we have 10 1 boxes so the right side value is 10.

Set up an equation.

5x - 8 = 10

Add 8 on both sides

5x = 18

Divide 5 by both sides

x = 3.6

2.Plug in 22 for g in all the answer choices to see if it correct or isolate g and see if it equal to 22.

G is the right answer , I'll do it both ways.

Plug in 22 for g

2(22 - 6) = 32

2(16) = 32

32 = 32

Isolate g

2(g - 6) = 32

2g - 12 = 32

2g = 44

g = 22

3.Llyod has 126 ounces of water. He spilled 36 ounces of water. We are trying to find the maximum number of cups he can fill after he spilled 36 ounces. This is represented by

6c \leqslant126 - 36

6c \leqslant 90

c \leqslant 15

so the answer is A

4.Plug in 18 and also any number greater than 18 and make sure the inequality true

F is true so F is the answer.

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When x=1, then y = ?​
kari74 [83]

Answer: -2

Step-by-step explanation:

Look for 1 on the x-axis and put your finger on it.

Move your finger down until it hits a point on the line.

Look to the left to see which number on y-axis corresponds with the point.

The number is the answer.

(1, -2)

6 0
4 years ago
Find the measure of the missing angle
insens350 [35]

Answer:

118°

Step-by-step explanation:

Because angle α and the angle that is 62° are a linear pair, that means their added angle measures are equivalent to 180°.

<u>So, to find the missing angle, subtract the known angle from 180:</u>

180 - 62 = a

118 = a

a = 118°

6 0
3 years ago
Identify the factors of 9x2 + 30x + 25.
svlad2 [7]
Selection B is appropriate.

_____
The signs of the coefficients tell you the binomial factors must have both signs positive (selections B and C only). Selection B produces an x-term that is 15x+15x=30x (as we want); selection C produces an x-term that is 45x+5x=50x (not what we want).
3 0
3 years ago
Read 2 more answers
Calculate the total surface area of 20cm long 10 cm wide and 5 cm high box
stiv31 [10]

Answer:

Given

Edge of a cube = 10cm

Length, l = 12.5 cm

Breadth, b = 10cm

Height, h = 8 cm

Find out

We have to find

i) Which box has the greater lateral surface area and by how much?

ii) Which box has the smaller total surface area and by how much?

Solution

(i)

Lateral surface area of a cube = 4 * (edge)2

= 4 * 102 cm2

= 400 cm2

Lateral surface area of a cuboid = 2 (lh + bh)

= 2 (12.5 * 8 + 10 * 8) cm2

= 2 (100 + 80) cm2

= 360 cm2

So, the lateral surface area of the cubical box is greater than cuboidal box by (400 cm2 – 360 cm2) which is 40 cm2.

(ii)

Total surface area of a cube = 6 * (edge)2

= 6 * 102 cm2

= 600 cm2

Total surface area of cuboid = 2 (lb + bh + lh)

= 2 (12.5 * 10 + 10 * 8 + 12.5 * 8) cm2

= 2 (125 + 80 + 100) cm2

= 610 cm2

Therefore, the total surface area of the cuboidal box is greater than the cubical box by (610 cm2 – 600 cm2) which is 10 cm2.

8 0
3 years ago
Read 2 more answers
Need help with this. Write an equation that is parallel to the line whose equation is y = −8x − 7?
shutvik [7]

Answer:

Problem 4: y = -8x+b

Problem 5: C: 3x-2

Step-by-step explanation:

<u>Problem 4:</u>

The given line is in slope intercept form.

The slope-intercept form is:

y = mx+b

Here the co-efficient of x is the slope of the line. Comparing the given equation with general form

m = -8

Two parallel lines have same slope so the slope of line will be -8.

y=mx+b\\y = -8x+b

b can be any positive or negative integer as we don't know any point on the line parallel to given line.

<u>Problem 5:</u>

Slope = 3

y-intercept = -2

Slope intercept of line is given by:

y = mx+b

here m is slope and b is y-intercept

Putting the values

y = 3x-2

Option C: y=3x-2 is the correct answer

Hence,

Problem 4: y = -8x+b

Problem 5: C: 3x-2

6 0
3 years ago
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