Please help me 7th grade math math

Please Help Me 7th Grade Math Math

Answers

Answer 1

Answer: 1/8

Step-by-step explanation: hoped this helped:))

Answer 2

Answer:

i think its 1/3

Step-by-step explanation:


Related Questions

Evaluate each expression if x = 3.

a. 2^x
b. x^2
c. 1^x
d. x^1
e. (1/2)^x

Answers

Answer:

a) 2³ = 2×2×2×=8

b) 3²=3×3=9

c) 1³=1×1×1=1

d) 3¹=3

e) 1/2³=1/2×1/2×1/2=1/8

Which side lengths form a right triangle?

Answers

C is the right answer
I’m looking at B but it might be C

Please help me 7th math

Answers

Answer:

1/12

Step-by-step explanation:

Answer:

cdcsvcd

Step-by-step explanation:

A block of wood has the shape of a triangular prism. The bases
are right triangles. Find its surface area.

Answers

Answer:

287.25 sq in

Step-by-step explanation:

Find the area of a circle with diameter 16 yd.
Use the value 3.14 for it, and do not round your answer.
Be sure to include the correct unit in your answer.

Answers

Answer:

200.96

Step-by-step explanation:

pi*r^2

Given the definitions of f(x) and g(x) below, find the value of g(f(-1)).
f(x) = -4x – 7
g(x) = x² + 7x – 2

Answers

Answer:

-14

Step-by-step explanation:

[tex]f(x) = -4x – 7 \\ plug \: x = - 1 \\ f( - 1) = - 4( - 1) - 7 = 4 - 7 = - 3 \\g(x) = x² + 7x – 2 \\g(f( - 1)) = {( - 3)}^{2} + 7( - 3) - 2 \\ = 9 - 21 - 2 \\= - 14[/tex]

a)How many similar figures can be drawn inside the following figures?
Find the limit of area and perimeter


Answers

yes yes yes yes yes

PLS HELP WITH NUMBER 6

Answers

Answer: The answer to this question is A


[tex]\boxed {\boxed {prove : \: 3 \: is \: greater \: than \: 5​ }} [/tex]

Answers

3 has more letters than 5. Hence 3 is greater than 5

The coordinates of D are

Answers

Answer:

The coordinates of D are -1,0

Step-by-step explanation:

I believe

The ratio of A's to B's on the last test was 3 to 4. If there was 12 A's . how maby B's were there?​

Answers

Answer:

16 B's

Step-by-step explanation:

If you know there are 3/4 A's/B's,

and that there are 12 A's,

you can set up a proportion:

3 12

-- = --

4 x

cross multiplication gets you:

48 = 3x

solve for x.

x = 16

a - 3
b - 4

3 x ? = 12
? = 4

so

4 x 4 = 16

ANSWER 16

What is the surface area of the right cone below?

Answers

Answer:

176π [tex]units^{2}[/tex]

Step-by-step explanation:

SA = B + LA  where B is the area of the base (circle) and LA is the lateral area

LA = radius of the circle times the slant height

    = 8π(14) = 112π

B = [tex]8^{2} \pi[/tex] = 64π

SA = 112π + 64π = 176π

The surface area of the right cone is 176π square units.

How to calculate the surface area of a composite figure?

Surface area are derived for some standard shapes like circle, triangle, parallelogram, rectangle, trapezoid, cone etc.

When some shape comes which isn't standard figure, then we find its area by slicing it (virtually, like by drawing lines) in standard shapes. Then we calculate those composing shapes' area and sum them all.

Thus, we have:

[tex]\text{Area of composite figure} = \sum (\text{Area of composing figures})[/tex]

That ∑ sign shows "sum"

We are given that;

The surface area of a right cone is given by the formula:

Surface area=πr(r+l)

where r is the radius of the base and l is the slant height of the cone12.

In this case, r=8 and l=14, so we can plug these values into the formula and simplify:

Surface area=π×8(8+14)

Surface area=π×8×22

Surface area=176π

Therefore, the surface area will be 176π square units.

Learn more about area of a composite figure here:

https://brainly.com/question/10254615

#SPJ7

Which list of numbers is ordered from from greatest to least?

Answers

Answer:

A

Step-by-step explanation:

A is the correct answer

A solid figure is composed of a cube and a pyramid as shown. What is the volume

Answers

Answer:

288 in^3

Step-by-step explanation:

1) find the volume of the cube

V = side^3 = 6^3 = 216 in^3

2) find the base surface of the pyramid:

base surface = side^2 = 6^2 = 36 in^2

3) find the height of the pyramid:

height of the solid - height of the cube = 12 - 6 = 6 in

4) find the volume of the pyramid:

V = (base area x height) / 3 = (36 x 6)/3 = 72 in^3

5) add up the two volumes

V = 216 + 72 = 288 in^3

Approximately what is the sale price of a skateboard listed at $159.69 with a 25% discount?

Answers

Answer:

159.69*0.75 = 119.76

Step-by-step explanation:

Cause we have a 25% discount, that means that the skatebord costs 75% of its original price.

The 75% of the original price is the 75/100 part (0.75)

Plz help this if you want points

Answers

Answer:

First Question:

A) -15+20x B) 36x+28

Second Question:

-10/5, 1/25, 1/2, 3/5, 5/8

Which of the following statements is not true?

A) -3 divided by -8 is a positive number

B) - 2/8 = 3/-8

C) -1/2(5+3/8)= (-1/2)(5) + (-1/2)(3/8)

D) (-4)(-2/5)(0.5) is a positive number

Answers

Answer:

The right answer would be C!

DE is a midsegment of ABC . Find the value of x.​

Answers

Answer:

if from a to e is 6 un, then x maybe 6 un as well

Step-by-step explanation:

Can you hellllllllllllllpppppppppp

Answers

Answer: ( 1.5, -3)

Step-by-step explanation:

You need to just look at the x and y axis and you see that the x axis is at 1.5 and the y axis is at -3.

Three students, Matthew, Thompson and Amos shared #15000 in the ratio of 5:2:x respectively. If Matthew's share is 7500, calculate the value of x. ​

Answers

Answer:

The value of x is 3.

Step-by-step explanation:

Matthew earned 7500 of 15000, that is, 1/2.

Rate of 5:2:x, with number 5 corresponding to Matthew, mean that his fraction of the earnings is given by:

[tex]\frac{5}{5 + 2 + x} = \frac{5}{7 + x}[/tex]

Since he earned 1/2 of the total:

We have that 5/(7+x) = 1/2. So we use this to find x.

[tex]\frac{5}{7 + x} = \frac{1}{2}[/tex]

Applying cross multiplication:

[tex]7 + x = 10[/tex]

[tex]x = 10 - 7[/tex]

[tex]x = 3[/tex]

The value of x is 3.

I need help like NOW

Answers

Answer:

386

Step-by-step explanation:

:)

LOOK AT IMAGES I MARK BRAINLIEST

Answers

Answer:

B

Step-by-step explanation:

Guys please last one ok

Answers

located at -3 and 5
:)

Answer:

last one, 4th

i really hope it helps.

Jessica's bedroom is 17 feet long and 9 1/2 feet wide. What is the area of the bedroom?

Answers

17 x 9.5 = 161.5 ft trust me

Help me with 6 and 7

Answers

Answer:

6 b 7 d give me brainlest

Step-by-step explanation:

What is the area of KLM?

Answers

Answer:

A. 1,170 cm^2

Step-by-step explanation:

Answer:

The answer is A

need you to check if answer is correct

Answers

It would be “B”, Y=2x+3 because she starts out with 3 cards, which is the +3 portion of the equation. And if she gets 2 cards per day, it would be the 2x portion because the “x” is the number of days.

The perimeter of a triangle is 29. One side of a triangle is 5 less than twice the side of the shortest length. The third side is 6 more than the shortest side. What are the lengths of the triangle?

Answers

Answer:

7, 9, 13

Step-by-step explanation:

Let the sides of the triangle be a, b and c.

We have:

P = a + b + c = 29a = 2b - 5c = b + 6

Substitute values and solve for b:

2b - 5 + b + b + 6 = 294b + 1 = 294b = 28b = 7

Find a and c:

a = 2*7 - 5 = 14 - 5 = 9c = 7 + 6 = 13

The sides are: 7, 9, 13

The data below are the ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults. Age 38 41 45 48 51 53 57 61 65 Pressure 116 120 123 131 142 145 148 150 152 What is the best predicted value for blood pressure of an individual who is 64 years old

Answers

Answer:

156

Step-by-step explanation:

Given the data:

Age (X) :

38

41

45

48

51

53

57

61

65

Pressure(Y) :

116

120

123

131

142

145

148

150

152

From the data, we could obtain a regression equation to mod the data Given using a linear regression calculator :

The regression equation obtained is :

y = 1.48769X + 60.46103

Using the model, the predicted blood pressure for a person aged 64 will be :

y = 1.48769(64) + 60.46103

y = 95.21216 + 60.46103

y = 155.67319

y = 156 (nearest whole number)

GEOMETRY
please Help

Answers

Answer:

A right circular cone

Step-by-step explanation:

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