- 7th Grade Work -

Please answer if it's a, b, c, or d.

Please help ; - ;

Answer:

1. The result can be shown in multiple forms.

Exact Form:

73/14

Decimal Form:

5.21428571…

Mixed Number Form:

5(3/14)

2. The result can be shown in multiple forms.

Exact Form: 15/72

Decimal Form: 78.5

Mixed Number Form: 7(8/12)

3. The result can be shown in multiple forms.

Exact Form: 1373/12

Decimal Form: 114.416

Mixed Number Form: 114(5/12)

4. The result can be shown in multiple forms.

Exact Form: 3079/744

Decimal Form: 4.13844086…

Mixed Number Form: 4(103/744)

Step-by-step explanation:

Answer: the brother is 20 and the sister is 9

Step-by-step explanation:

29 - 11 = 18  18 divided by 2 is 9

9+11 is 20 the brothers age so the sister is 9

Answer:

h=square root of 55

area of triangle=15*square root of 5

Step-by-step explanation:

Answer:

a. 7.4 cm

b. 22.2 cm²

Step-by-step explanation:

a. Apply Pythagorean theorem to find h.

c² = a² + b²

Where,

c = 8 cm

a = 3 cm

b = h cm = ?

Plug in the values

8² = 3² + h²

64 = 9 + h²

64 - 9 = h²

55 = h²

h = √55

h ≈ 7.4 cm

b. Area of the triangle = ½*bh

b = 6 cm

h = 7.4 cm

Area = ½*6*7.4

Area = 22.2 cm²

Answers:

If an angle is labeled with a single letter, that letter represents the  vertex   of the angle.

If more than one angle has the same vertex, you must use  3   points to name the angle. The  middle   point named must be the vertex.

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Explanation:

If we have a single triangle, and no other extra lines, then we can use single letters to name the three angles. Each vertex of the triangle corresponds to the vertex of that angle.

If you were to draw many triangles, in which some may or may not overlap, you'll mostly likely need to name the angle using 3 letters. This is so you are very specific about which angle you're talking about. The middle letter is always the vertex. The left and right letters are points on the arms of the angle. The order of the left and right letters doesn't matter as long as the middle letter stays the same. So something like angle ABC is the same as angle CBA.

Answer:

A

Step-by-step explanation:

All you to do is plug in the the given range [-2,0,5] in the x of your given function (y=-5x +4) and solve for each number.

Answer:

First of all, the subjects Tammy used were from her math class. And of course, people from a math class probably like math more than other subject. Otherwise, why are they in math?

Step-by-step explanation:

#fax

Don't use my exact wording. Some of your points might be cut off.

Answer:

Step-by-step explanation:

circumference=2πr

=2*3.14*7.8

=48.98 m

Answer:

C

Step-by-step explanation:

7.8x2=15.6 <----- thats the diameter

15.6x3.14=48.984

Answer:

(2,0), (6,0)

Step-by-step explanation:

X-intercepts are just points that are on the x-line. The two points that are on the x-line is (2,0) and (6,0). Therefore, those are the x-intercepts.

If this helps please mark as brainliest

Answer:

(2,0)

(6,0)

Step-by-step explanation:

The X intercept is any point that touches the X-axis on the graph (The X-axis the line that goes from left to right).

From looking at this parabola, we can see that it touches the x-axis twice, at the points (2,0) and (6,0).

Please give me brainliest if I helped!

Answer:

The box which weights a ton.

Step-by-step explanation:

Ounces are smaller than pounds, and pounds are smaller than a ton.

Answer:

The third box weighed the most.

Step-by-step explanation:

Tons weigh a lot more than pounds and ounces.

Answer:

1.3%

Step-by-step explanation:

1) False

Adjacent angles must share a common side/ray.

2) B and D

Adjacent angles are those that are directly next to each other and share a common side.

3) C

Angles 1 and 2 are congruent. Angles 3 and 4 are congruent. Both of these pairs have angles that are opposite each other.

4) B

Angles 1 and 2 add up to 180. Angles 3 and 4 add up to 180. Both of these pairs of angles are supplementary.

5) A

These angles are directly next to each other and share a common side.

Hope this helps!! :)

Answer: For question number 9. It is C. 36

For question number 10. Your answer is A. 3/7

Have a nice day!

Answer:

9: D

10: D

Explination:

its D for 10 because there are four prime numbers in the equation 2, 3, 5, 7

Answer:

B. 5 sq units

Step-by-step explanation:

9 - 4

5

Answer:

[tex]80\:\mathrm{km^2}[/tex]

Step-by-step explanation:

The area of a triangle can be given by [tex]A=\frac{1}{2}bh[/tex], where [tex]b[/tex] is the base of the triangle and [tex]h[/tex] is the height of the triangle.

As marked in the diagram, we are given the following:

[tex]A=\frac{1}{2}bh=\frac{1}{2}\cdot 10\cdot 16=\boxed{80\:\mathrm{km^2}}[/tex]

Answer:

Hello! answer: 80 km

Step-by-step explanation:

To find area in triangles you can do

base × height ÷ 2 or base × height × 1/2

10 × 16 = 80 therefore the area is 80 km

Answer:

156 - area

Step-by-step explanation:

The area is 156 square feet. You can subtract the area by two 3x 7 rectangular corners from the large 12 x 6 rectangle around the polygon.

Answer:

216 cm squared

Step-by-step explanation:

14*12 for rectangle area=168  because of l*w

for the triangle: 12 * 8 =96/2=48 because of A=1/2 * b*h

area equals 168+48=216 cm squared

Answer:

178.3 mm

Step-by-step explanation:

Answer:

480

Step-by-step explanation:

8 x 6 x 10 = 480

hope this helps but im probably wrong cuz im also horrible at math-

Answer:

y=10x

Step-by-step explanation:

The slope is 10/1 and it's positive.

Answer:

Each angle is 60°

Step-by-step explanation:

The 2 angles are equal to each other because they're alternate exterior angles:

10x - 20 = 7x + 4

10x - 7x = 4 + 20

3x = 24

x = 8

10x - 20

10(8) - 20

80 - 20

60

Since these angles are exterior angles, their angle measures are equal so they both are 60°

Answer:

3.72

Step-by-step explanation:

ok so what i did was i did 2/5 of 9.3 and i got 3.72.

Answer:

1/3 and 29 1/3

Step-by-step explanation:

Step-by-step explanation:

[tex]452 \\ \times 36[/tex]

16272

Answer:

16,272

Step-by-step explanation:

And a product is what the answer to a Multiplication problem is called

Answer:

In space, astronauts lose fluid volume—including up to 22% of their blood volume. Because it has less blood to pump, the heart will atrophy.

Step-by-step explanation:

Why is this on math?

Answer:

Independent

Step-by-step explanation:

Answer:

Independent

Step-by-step explanation:

Independent means whatever the outcome is it doesn't affect the other outcome. The number the the dice rolls will not determine what color it lands on

Answer:

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

Should subtract

Answer:

4m

Step-by-step explanation:

length of remaining rope= 13-9

= 4m

Answer:

It’s a

Step-by-step explanation:

Because it rotates in a 90 degree angle

Answer:

A or the 1st one

Step-by-step explanation: