Mathematics High School

i need help ASAP ill mark u a brainiest i need an answer thats it

Answers

Answer 1

Answer:

I think it's 7.5 correct me if i'm wrong

Step-by-step explanation:

7.5 is half of 15

Use the midsegement theorem

Related Questions

For one English test, Benny had to answer 15 questions. Of these questionsBenny answered 60% of them correctly. How many questions did Benny correctly answer on his test?

Answers

Answer:

9 correct

Step-by-step explanation: 60% of 15 = 9

Please help with question 4 thank you !!

Answers

Answer:

I would have to go with B.) 129

Step-by-step explanation:

because 54+130+130+97 is 411 and 540-411 is 129

A motorboat maintained a constant speed of 16 miles per hour relative to the water in going 55 miles upstream and then retuming. The total time for the tip was 8.0 hours. Use this information to find the speed of the current.

Answers

Answer:

6 mph

Step-by-step explanation:

Let the speed of the current be c

Time upstream is

55/(16 + c)

Time downstream is

55/(16 - c)

Total time is 8 hours

55/(16 + c) + 55/(16 - c) = 855(16 -c + 16 + c)/(16 + c)(16 - c) = 855*32= 8*(16² - c²)220 = 256 - c²c² = 36c = 6 mph

6w-19+k when w=8 and k=2

Answers

Substitute

6(8) - 19 + (2)

6(8) = 48

48 - 19

29 + 2 = 31

Answer:

Step-by-step explanation:

Devaughn is 13 years younger than Sydney. The sum of their ages is 79 . What is Sydney's age?

Answers

Answer:

Step-by-step explanation:

Let D =Devaughn's age

S= Sydney's age

So D+S=64

D=S+12

Now

D+S=64⇒D=64−S

and so

S+12=64−S 2S=52

S=26

Therefore

D=S+12

D=38

Of the 342 students in sixth grade, 178 are car riders. What percent of the
sixth grade students are car riders?

Answers

Answer:

164

Step-by-step explanation:

342-178=164 im not sure i understand it but i think thats the answer HOPE I HELPED

Answer:

About 52 percent are car riders.

Step-by-step explanation:

Using cross multiply, you should set up this: ?/100 178/342

Now you multiply 178 by 100 to get 17800

Next you divide 17800 by 342.

You get: 52.0467836257

Round to get 52.05 percent.

Hope this helps, have a nice day! (^-^)

While the family went on vacation, Lisa boarded her cat at a kennel that charged $9.25 per day. If
Lisa boarded her cat for 1 week and 5 days, how much did it cost her to board her cat?
A $18.25
B $74.00
C$111.00
D Not Here

Answers

Answer:C

Step-by-step explanation: 7+5=12 12x9.25=111.00

Answer:

Step-by-step explanation:

1 week is seven days. 7 + 5 is 12. to get your answer you multiply the number of days by the cost. 12 x $9.25 is $111 dollars

PLEASE HELP ASAP VERY IMPORTANT I WILL DO ANYTHING THNK YOU SO MUCH ITS MY BDAY TMRW TOO

Answers

Answer:

i dont have the answers i just wanted to say happy b day

Step-by-step explanation:

Write 33 x V3
as a
single power of 3.

Answers

Answer:

555555

Step-by-step explanation:

State if the given functions are inverses.

Answers

B is the answer Eng 2020

Please help I'm not sure what to do first.

Answers

Answer:

Step-by-step explanation:

it has to be under 90 degrees

Motocross The path that a motocross dirt bike rider follows during a jump is given
by y = -0.4x² + 4x + 10 where x is the horizontal distance (in feet) from the edge
of the ramp and y is the height (in feet). What is the maximum height of the rider
during the jump?
20
18
16
14
12
Height (feet)
10
6
4
2
0 2 4 6 8 10 12
Horizantal distance feet)
My

Answers

Answer:4.4x+10

Step-by-step explanation:

help pls i need it a lot hi

Answers

Answer:

Answer is Q,R,P

Hope it helps....... pls mark as brainliest

Answer:

The second: ∠Q, ∠R, ∠P

Step-by-step explanation:

In every triangle the largest angle is oposite to the longest side and the smaller angle is oposite to the shortest side

the longest side is PR=15, so the largest angle is Q

the shortest side is QR=7, so the smallest angle is P

the sum of 3 consecutive numbers is 99 what are the numbers

Answers

Answer:

32+33+34

Step-by-step explanation:

If I understand the question correctly, you're looking for 3 different numbers that are all consecutive that add up to be 99. The way I did it was finding 3 consecutive numbers that add to 9. 2, 3, 4. I knew the 10s place had to be a 3 because 30+30+30=90, 2+3+4=9, 90+9=99

Help me with this please

Answers

Answer:
8x+y

Explanation:
3x+4y+5x-3y
Rearrange the terms so like terms are next to each other
3x+5x+4y-3y
Combine like terms
8x+y

I hope this helps!

What decimal number does point A on the number line below represent?

A vertical number line is shown from negative 2.00 to 0 to positive 2.00.There are tick marks to show increments of 1 over 4. Only the whole numbers are labeled. Point A is plotted at the first tick mark below negative 1.00.

−0.75
0.75
−1.25
1.25

Answers

Answer:

I think it is 1.25

Step-by-step explanation:

Sorry if I'm wrong

Answer:

-1.25

Step-by-step explanation:

7) If x-2 is a factor of P(x)= x^2-5x+a then find the value of a

2
3
4
6
please answer

Answers

Answer:

a = 6

Step-by-step explanation:

Given that (x - 2) is a factor of P(x) , then P(2) = 0 , that is

P(2) = 2² - 5(2) + a = 0 , so

4 - 10 + a = 0

- 6 + a = 0 ( add 6 to both sides )

a = 6

Which of the following algebraic expression represents the sum of 6 and one-fifth of x?
A.
6.2x

B.
0.2 + 6x

C.
6 + 0.2x

D.
(6 + x)0.2

Answers

Answer:

C. 6 + 0.2x

Step-by-step explanation:

6 + 1/5 x = 6 + 0.2x

Answer:

Step-by-step explanation:

even tho you called my question thicc..

There are 12 members in a family and 8 of them are males.
(i) Find the ratio of the number of males and females.
(ii) Find the ratio of the number of females and the total number of members.

please fast

Answers

i) the ratio of males to females is 8:4
ii) the ratio of females to total number of family members is 4:12

i) because the total number is 12
12-8=4
therefore there are 4 females in the family
So the answer is 8:4

ii) because we know there are 4 females and there’s 12 members in the family so the answer is 4:12

To factor 9x^2- 4, you can first rewrite the expression as:
O A. (3x-2)^2
O B. (x)^2-(2)^2
C. (3x)^2-(2)^2
D. None of the above

Answers

Answer:

[tex](3x - 2)(3x + 2) \\ [/tex]

4+x/ 4-x
Using quotient rule differentiate with respect to x

Answers

Hope this helps! Let me know if it doesn’t make sense

What is the volume of a hemisphere with a radius of 9.7 cm, rounded to the nearest tenth of a cubic centimeter? please i need help ill do a zoom call and i'll give you all my Branly points if uu help me.

Answers

Answer:

volume of hemisphere =1912.26cm^3

Step-by-step explanation:

radius(r)=9.7cm

now volume of hemisphere=(2/3)π[tex]r^{3}[/tex]

=(2/3)*(22/7)*(9.7)^3

=(2/3)*(22/7)*912.673

=(2/3)*2868.40086

=1912.26cm^3

The volume of a hemisphere is [tex]1910.52 cm^{3}[/tex].

What is volume of a hemisphere?

A hemisphere is half of a full sphere, we can calculate the volume of a hemisphere just by halving the volume of the complete sphere.

So, we can calculate the volume of a hemisphere by using the following formula,

[tex]$V=\frac{2}{3}\pi {{r}^{3}}$[/tex]

Here, [tex]r[/tex] is the radius, [tex]V[/tex] is the volume of hemisphere.

So,

It is given that the radius is [tex]9.7 cm[/tex].

We have to find [tex]V[/tex].

So,

[tex]$V=\frac{2}{3}\cdot 3.14\cdot {{\left( 9.7 \right)}^{3}}$[/tex]

[tex]V=1910.52[/tex]

Hence, the volume of hemisphere is [tex]$1910.52\text{ c}{{\text{m}}^{3}}$[/tex].

Learn more about volume of hemisphere here,

https://brainly.com/question/23118911

#SPJ2

Which of the below images is a translation of.....

Answers

Answer:

I believe a

Step-by-step explanation:

It’s defnetily b a translation is to move up down or right left

marking brainliest to whoever gives me the correct answer and i good explanation!

Answers

Answer:

Step-by-step explanation:

The triangle should equal 180 degrees. You already have 84+60= 144

Take that 144 with the equation of the other angle. 144-180 is 36

5x+1=36 subtract 1 from both sides

5x=35 divide by 5

x=7

check:

36 + 84+60= 180

What is f(4) for the function f(x) = 6x +3?
f(4)=0

Answers

F(4)=6(4) +3
= 24+3=27
F(4)=27.

The value of function f(4) is 27.

It is required to find the value of function f(4).

What is function?

A function is defined as a relation between a set of inputs having one output each. function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.

Given that:

The function is

f(x) = 6x +3

Now put the value x=4 in the given function, we get

f(4)=6(4) +3

= 24+3

=27

f(4)=27.

Hence, the value of function f(4) is 27.

Learn more about function here:

https://brainly.com/question/19013514

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M=2 and containing the point (7,6)

Answers

Answer:

[tex]the \: equation \: of \: the \: line \: is \to \\ \boxed{ \underline{y = 2x - 8 }}[/tex]

Step-by-step explanation:

[tex]according \: to \: the \: provided \: info : \\ the \: equation \: of \: the \: line \: is \to \\ y - y_{1} = m(x - x_{1}) \\ y - 6 = 2(x -7) \\ y = 2x - 14 + 6 \\ \underline{y = 2x - 8 }[/tex]

Equation will be
(y - 6) = 2(x-7)
y-6 = 2x-14
2x-y= 14-6
2x-y=8

A carpet cleaning company will clean an apartment for $71.00. Jim has a coupon for 20% off the total price.
How much money will Jim save if he uses the coupon?

Answers

Answer:

Step-by-step explanation:

Jim will save $14.20

To calculate this we use multiplication, multiply $71.00 with 20% which in decimal form

Comes to .20.

The end result is $14.20.

Step-by-step explanation:

What value could be put in the blank to make this equation have no solution?

2(5x+3) = 3x - 9 + ____

Answers

Answer:

3/7

Step-by-step explanation:

Let's solve your equation step-by-step.

2(5x+3)=3x+9

Step 1: Simplify both sides of the equation.

2(5x+3)=3x+9

(2)(5x)+(2)(3)=3x+9(Distribute)

10x+6=3x+9

Step 2: Subtract 3x from both sides.

10x+6−3x=3x+9−3x

7x+6=9

Step 3: Subtract 6 from both sides.

7x+6−6=9−6

7x=3

Step 4: Divide both sides by 7.

Answer:

Hope it helps :)

Suppose there is a 1.1 drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 60.5, what will be the temperature when the plane reaches an altitude of 11,000?

Answers

Answer:

48.4° C

Step-by-step explanation:

Step one:

We are told that there is 1.1° drop in temperature for each 1000 ft climb.

since the given altitude is 11,000ft,

hence there =(11000/1000)*1.1

= 11*1.1

=12.1°C drops in temperature.

Therefore, given that the temperature on the ground is 60.5° C

The temperature above is 60.5-12.1=48.4° C

The plane reaches an altitude of 11,000 is 48.4° C

A rope is 225 centimeters long.
You need the rope to be 1 1/2 meters long.

How many centimeters should you cut off?

Answers

Rope = 225 cm

Needed rope = 11/2m = (11/2) × 100 cm = 550cm

So, rope needed to be cut

= 550cm - 225cm

= 225cm

=225/100m

=2.25 m

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