PLEASEE!! do at least one of the problems and show work!!!

For #8 and #9, fill in the missing information for the following trapezoids. SHOW YOUR WORK to solve for the missing value.

8.
height = 19.8 cm
b1 = ________
b2 = 14.4 cm
area = 401.94 cm2



9.
height = ________
b1 = 20 cm
b2 = 21 cm
area = 205 cm2

Answer:

The length is from -5 to +7, so the length answer is 12, The midpoint would be that divided by 2, so six.

Step-by-step explanation:

Answer:

Length = 12

Midpoint = 1

Step-by-step explanation:

to find the length u cancount from left to right of the segment and u can see that it is 12 units long. To find the mid point just take half of the the length, which is 6, and count that many units from either side of the segment. you'll stop at 1 do that is the mid point of the graph.

Answer: f(10) = 290

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

Given expression

f(x) = 3x² - x

Substitute values into the expression

f(10) = 3(10)² - (10)

Simplify exponents

f(10) = 3(100) - (10)

Simplify by multiplication

f(10) = 300 - 10

Simplify by subtraction

f(10) = [tex]\boxed{290}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Answer:

Step-by-step explanation:

Answer: 9

Concept:

Here, we need to know the idea of absolute value.

The absolute value of a number or integer is the actual distance of the integer from zero, in a number line.

There are no negatives in absolute value. So in practice "absolute value" means to remove any negative sign in front of a number, and to think of all numbers as positive.

Solve:

Given

3 |-3|

Expand absolute value sign, which means making [-3] positive

= 3 × (3)

Simplify by multiplication

= [tex]\boxed{9}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

Answer:

5x + 7

Step-by-step explanation:

Given

4x + 7 + x ← collect like terms

= (4x + x) + 7

= 5x + 7

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\text{4x + 7 + x}[/tex]

[tex]\huge\text{= 4x + 7 + 1x}[/tex]

[tex]\huge\textsf{COMBINE the LIKE TERMS}[/tex]

[tex]\huge\text{= (4x + 1x) + 7}[/tex]

[tex]\huge\text{= 5x + 7}[/tex]

[tex]\huge\text{Answer: \textsf{5x + 7}}[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day! }[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

5 quarters =1.25$

15$÷1.25$=12

then 15$ in quaters would weigh 12 ounces

purchase they sold it for: $2570

loss= $180

They purchased it for= loss + selling cost

=2570+180

=$2750

Answer:

2

Step-by-step explanation:

In an AP, Tn = a + (n - 1)d

T6 = a + 5d = 11

The first term = a = 1

∴ T6 = 1 + 5d = 11

5d = 11 - 1

5d = 10

∴ d = 2

I hope this will help you :-)

Answer:

[tex]x6 = 11 \\ x1 = 1 \\ x6 \: can \: be \: written \: as \: x6 = x1 + 5d \\ x6 = 1 + 5d \\ 11 = 1 + 5d \\ 10 = 5d \\ d = \frac{10}{5} \\ d = 2 \\ thank \: you[/tex]

Answer:

C. linear; y = –x – 2

Step-by-step explanation:

Answer:

Option A, linear; y = -x - 2

Step-by-step explanation:

Example-

x = 3

y = ?

? = -3 - 2 (add the negative number if in the case of subtracting a negative number)

? = -5

Answer:

(x-1990)×25

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

The Equation is 25x-47500 as a function of the number of years since 1990.

To find equation for the number of students .

Statement that the values of two mathematical expressions are equal.

Given that:

The number of students in high school has been increasing linearly since 1990.

In 1997, 1125 students and in 2000, there were 1200 students.

Increase the number of students in 1997-2000

=1200-1125=75

In 3 years 75 student increased

In 1st years 25 student increased

number of students that will  increasing  in 1990=25

Equation=(x-1900)*25

Equation=25x-47500

where x is date/year

So, the Equation is 25x-47500 as a function of the number of years since 1990.

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Answer:

kdfbfnfffjjjjjjjjjjskslosksndbdd

Answer:

c

Step-by-step explanation:

Answer:

Mean=6

Sum of numbers= 30

Step-by-step explanation:

Answer:

inputs:outputs

7:8

output is equal to input plus one

Step-by-step explanation:

award brainliest

Answer:

$330

Step-by-step explanation:

working hours a day = 5 hours 30 minute

total working hours = 5 days × 5.5 hours

= 27 hours 30 minute

pay per hour = $12

total gross pay a week = 27.5 × $12

= $330

Answer:

The answer is –2

Step-by-step explanation:

The reason its –2 is because on a number line

The required percentage of the 30 intermediate-level questions is 20%.

Given that,
Practice questions for a textbook are marked with difficulty levels of easy, Intermediate, and difficult. 30 of the 149 practice questions are rated as intermediate, approximately what percentage of the questions are intermediate level is to be determined.

the percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
the required percentage of the intermediate difficult question,
= 30 / 149 * 100
≈ 0.20 * 100
≈ 20%

Thus, the required percentage of the 30 intermediate level question is 20%.

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Answer:

18month=1.5 year

Interest = 0.06*930*1.5=$83.7

Answer:

The length of a wave is one way to measure its size. It's the distance between two neighboring waves' corresponding points, commonly measured in meters. The distance between two adjacent crests is used to calculate the wavelength of a transverse wave.

Step-by-step explanation:

:)

Step-by-step explanation:

Since the integers are consecutive,

let the smaller one be x

then the larger will be x+1

Now their sum is -15

x+x+1=-15

2x=-15-1

2x=-16

x=-8

Therefore the smaller is -8 and the larger is -7

Now when one is added to the smaller integer it becomes -8+1=-7

If 2 is subtracted from the larger one it becomes -7-2=-9

their product therefore becomes -9×-7=63

Answer:

Step-by-step explanation:

The trick is not to get all caught up in Pythagoras. There is a much simpler way to do it. Find the area of the triangle two different ways. DG and DE are at right angles. That is one way to find area. The other is use the height (DF) and multiply that by the hypotenuse GE.

DG*DE/2 = GE * DF/2            Multiply both sides by 2

DG*DE = GE * DF

DG = 8

DE = 15

GE = 17

8*15 = 17* DF

120 = 17 * DF                         Divide by 17

120/17 = DF

DF = 7.06

Here, we need to subtract the quantity of tin from the quantity of iron in order to find how much more iron Trista has than tin

The quantity of iron Trista has more than tin is 7.17 mg

Quantity of iron = 8 mg

Quantity of tin = 0.83 mg

Quantity of iron Trista has more than tin = Quantity of iron - Quantity of tin

= 8 mg - 0.83 mg

= 7.17 mg

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The inn's nightly cost before tax is added is $23.54

Taxes are prices added on top of goods and services

Let the normal price be x

Price including tax = x + 0.07x (note that the tax iss 7%)

Given that Price including tax = $125.19, then;

$125.19 = x + 0.07x

Find the value of x

125.19 = 1.07x

Swap

1.07x = 125.19

x = 125.19/1.07

x = $23.54

This shows that the inn's nightly cost before tax is added is $23.54

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Answer:

9x is the answer

Step-by-step explanation:

-x-(-10x)

-x+10x

9x

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\text{-x - (-10x)}[/tex]

[tex]\huge\text{= -1x - (-10x)}[/tex]

[tex]\huge\text{= -1x + 10x}[/tex]

[tex]\huge\textsf{COMBINE the LIKE TERMS}[/tex]

[tex]\huge\text{= (-1x + 10x)}[/tex]

[tex]\huge\text{= 9x}[/tex]

[tex]\huge\text{Answer: \textsf{9x}}[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

5

Step-by-step explanation:

Answer:

1860 yards

Step-by-step explanation:

1 mile = 1760 yards.

1 yard = 3 feet

300 feet = 100 yards

1760 + 100 = 1860 yards

Answer:

..

Step-by-step explanation:

.

Answer:

2(n + 6)

Step-by-step explanation:

Increased by 6 means to add 6 to a number. Then double the sum is to multiply the total by 2.