please help me? < 3 (8th grade)

Answer:

x < 2

Step-by-step explanation:

5x-25<-15

Add 25 to each side

5x-25+25<-15+25

5x < 10

Divide by 5

5x/5 < 10/5

x < 2

Open circle at 2   line to left

Answer:

379.88 cm²

Step-by-step explanation:

A=6ah+3√3a²=6·4.3·11+3·√3·4.3²≈379.87686

Answer: 373cm squared

Step-by-step explanation:

ok so you have to find the are of each individdual part of this shape. there are 6 long sides so 55x6=330. and then you hav to find the are of the top and bottom surface which is 43. 330+43=373

Answer:

B and C

Step-by-step explanation:

Kitten:

2 times in the morning and 2 times in the evening = 4 times per day

That means Ariane feeds her kitten 4k grams of food per day.

Dog:

1 time in the morning and 1 time in the evening = 2 times per day

That means Ariane feeds her dog 2d grams of food per day.

Answer:

If you find the total, you have to add the kitten's food per day and the dog's food per day. That is 4k + 2d, which is the same as choice B.

We can break 4k into 2k + 2k. We can also break 2d into d + d. We can write that as 2k + 2k + d + d. That equals the same as choice C, making it a correct choice.

I hope this helps and please mark me as brainliest!

Answer:

c.

Step-by-step explanation:

u just filp it over and, well, there

Answer:

Step-by-step explanation:

Remark

The plan is to find the third side. It and the 9 foot side form a right angle. The base is given as 9 feet. The third sid will be the altitutude. The formula is Area = 1/2 * Base * third side.

Formulas

c^2 = b^2 + a^2

Area = 1/2 b * a

Givens

c = 13 feet

a = ?

b = 9 feet.

Answer: 42.2 square feet.

Solution

c^2 = b^2 + a^2

13^2 = 9^2 + a^2

169 = 81 + a^2                 Subtract 81 from both sides.

169 - 81 =81 - 81 + a^2    Combine

88 = a^2                          Take the square root of both sides

√a^2=√88

a = 9.381

Area = 1/2 * 9 * 9.381

Area = 42.21

Rounded to the nearest 1/10 Area = 42.2

Answer:

15.

Step-by-step explanation:

the 2 above the 7 tells us how many times we multiply through number by it self so 7x2 is 14- 4 is 10+5 is 15

Answer: The Casio FX-9750GII Graphic Calculator features all the basic functionality of an entry-level graphing calculator, making it great for math coursework from Pre-Algebra to AP Calculus and Statistics and courses in between (like Geometry and Trigonometry).

Step-by-step explanation: pls friend can i get branliest and thanks

Answer:

Width = 93

Step-by-step explanation:

12 × 16 is 192

285 - 192 = 93

Answer:

The width is 93.

Step-by-step explanation:

I took the test.

Answer:

Number line graph with closed circle on 30 and shading to the right

because you already have 30 dollars and they need at least 120 but if they get more then 120 they can still hold the science fair.

THIS ANSWER ISN'T MINE. I TOOK IT FROM AN ANSWER TO THE SAME QUESTION ANOTHER USER POSTED.

Answer:

12 robots

Step-by-step explanation:

Count up all the dots on the line

Answer:

32 robots you can’t have half of a robot so the other 2/4 doesn’t count

Step-by-step explanation:

Answer:

c = 0.06p + p

Step-by-step explanation:

hope this helped

An equation that represents the total cost, c, of any item bought in Idaho whose price is p is c = 1.06p.

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Given that,

Cost of the winter jacket = $30

Sales tax = 6%

Total cost of the winter jacket = 30 + (6% × 30)

                                                   = 30 + 1.8

                                                   = $31.8

If the total cost of any item is c whose price is p,

c = p + (6% × p)

c = p + 0.06p

c = 1.06p

Hence the required equation is c = 1.06p.

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Answer:

3812.5

Step-by-step explanation:

2500 x 3.5% = 87.5 x 15 = 1312.5 + 2500 = 3812.5

The money will Alec have in 15 years with 3.5% simple interest is equal to 3812.5.

We have given that,

Alec opened up a savings account with $2,500 and the account will earn 3.5% simple interest.

Simple interest refers to the straightforward crediting of cash flows associated with some investment or deposit.

2500 x 3.5%

= 87.5 x 15

= 1312.5 + 2500

= 3812.5

Therefore we get the money will he have in 15 years is equal to 3812.5.

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Samantha's percent error is 15.24%.

The percent error is the distinction between the estimated value and the actual value in relation to the actual value. In other words, the relative error is multiplied by 100 to calculate the percent error.

Given:

Samantha guessed there were 295 jelly beans.

There were actually 250 jelly beans in the jar.

So, the percent error

= (295- 250) / 295 x 100

= 45 / 295 x 100

= 0.15254 x 100

= 15.24 %

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Answer:

x = -2, 0, 2/3

Step-by-step explanation:

3x³ + 4x² - 4x = 0

x(3x² + 4x - 4) = 0

x(3x² + 6x - 2x - 4) = 0

x(3x - 2)(x + 2) = 0

ZEROs

x = 0

3x - 2 = 0

x = 2/3

x + 2 = 0

x = -2

Hope this helps!

Answer:

4.08

Step-by-step explanation:

Step-by-step explanation:

To find the quadrent a coordinate pair is in:

1. look at the "x" value in the (x,y) pair

2. if its negetive go leftward and if its positive go rightward

3. once you have moved to the respective x location do the same thing with the y coordinate in the (x,y) pair

4. up is positive for y and down is negitive.

for example (3,3) would be 3 to the right and 3 up so its in the top right quadrent

(-3,-3) would be 3 left and 3 down so its in the bottom left  

Answer:

8. Scalene 9. Isosceles

Step-by-step explanation:

8) Acute Scalene

9) Right Isosceles

Triangles can be classified in 3 ways based on their angles: acute, obtuse, and right. There are 3 ways to classify based on sides: scalene, isosceles, and equilateral.

Definitions

Acute - a triangle with 3 acute angles (angles under 90 degrees)

Obtuse - a triangle with 1 obtuse angle (angle greater than 90 degrees)

Right - a triangle with 1 right angle (90-degree angle)

Scalene - a triangle with sides of all different lengths

Isosceles - a triangle with 2 equal sides and angles

Equilateral - a triangle with 3 equal sides

Question 8

From the 2 angles we are given, we can tell that all of the angles are different. This must mean that the sides are also different. Since the sides are different, this must be a scalene triangle. Additionally, the missing angle is 100 degrees; thus, it must be an obtuse triangle.

Question 9

The marks on the 2 sides mean that these lines are equal. Therefore, it must be an isosceles triangle. One of the angles is marked with a box. This means that the angle is 90 degrees.  So, it is a right triangle.

Answer:

[tex]V=160\pi[/tex]

Step-by-step explanation:

[tex]V=h\pi r^{2}[/tex]

[tex]V=10*\pi 4^{2}[/tex]

[tex]V=160\pi[/tex]

Answer:

b!

Step-by-step explanation:

Answer: 30° - 3d ≤ 20°

Step-by-step explanation:

Here the constant rate of decreasing the temperature = d degree,

Thus, the total decreasing in three days = 3d degree,

If the temperature on Monday = 30°

Then the temperature n Thursday =  30° - 3d

Since, The swimming pool is open when the high temperature is higher than 20°

⇒ 30° - 3d ≤ 20°

Which is the required inequality to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.

Answer:

30-3d\le 20

Step-by-step explanation:

Answer:

The average change in temperature per hour was -8°F.

Step-by-step explanation:

Using the equation 48-(-16) we know that the temperature dropped by 64°F.

[tex]48-(-16)=64[/tex]

We now know that the temperature dropped by 64°F in a period of 8 hours. Using the equation -64/8 we can find the average change in temperature per hour.

[tex]\frac{-64}{8} = -8[/tex]

Therefore, the average change in temperature per hour was -8°F.

Thanks

this help a lot

Answer

2/18 = 9

Step-by-step explanation:

Answer:

It’s 9 and it’s okay you are just starting don’t worry !

Step-by-step explanation:

Hope this helps!!

HAVE AN AMAZING DAY

Answer:

C. 20x+100<400, the new theater must have fewer than 15 seats

Step-by-step explanation:

Has to be less than 400 seats and we must include the 100 balcony seats

Answer: Point A because it is between -5.85.

Step-by-step explanation:

i cant process what your saying

Answer:

10) acute triangle

13) right triangle

Step-by-step explanation:

all triangles have angles that add up to 180 degrees

find the third angle of the triangle by subtracting the known angles from 180

180-75-78=27

acute triangles have no angles that surpass 90 degrees which fits that triangle's description

180-54-36=90

since one angle is 90 degrees, it is a right triangle

Answer:

[tex]\huge\boxed{\bf\:10) \: Acute \: angled \: triangle}[/tex]

[tex]\huge\boxed{\bf\:11) \: Right \: angled \: triangle}[/tex]

Step-by-step explanation:

▪︎ Question 10 :

We need to find the missing angle at first. Take it as 'x' .

We know through the angle sum property of a triangle that the total sum of all the angles in a triangle will sum up to 180°. Hence,

75° + 78° + x° = 180°

153° + x° = 180°

x° = 180° - 153°

x° = 27°

Then, since all the angles are less than 90°, we can say that the triangle is an acute angled triangle.

[tex]\rule{150pt}{2pt}[/tex]

▪︎ Question 11 :

Just like the above question, we need to find the missing angle at first. Take it as 'y' .

The total sum of all the angles in a triangle will sum up to 180° (angle sum property of triangles). Hence,

36° + 54° + y° = 180°

90° + y° = 180°

y° = 180° - 90°

y° = 90°

Since, one angle is equal to 90°, the given triangle is a right angled triangle.

[tex]\rule{150pt}{2pt}[/tex]

Answer: 452

Step-by-step explanation: the area of the whole area is 500. the area of the white space inside is 48. you subtract 48 from 500 and get 452.

Answer:

[tex]beinggreat78~here![/tex]

I would have to agree with what the other person said, 452. Hope this helps.