i need help math hard

I Need Help Math Hard

Answers

Answer 1

Answer:

15°

Step-by-step explanation:


Related Questions

use the GCF to factor 16+6

Answers

Answer:

2 x (8 + 3)

Step-by-step explanation:

b) 16 + 6 = 2 x (8 + 3)

=> 22 = 2(11)

=> 22 = 22

Therefore, 2 x (8 + 3) is your answer.

−5 + 6 × 5/2 + 56 ÷ ( −8 )

Answers

Answer:

3

Step-by-step explanation:

Give the simplified radical form for each side length requested.


Pls answer only if you can explain and if your sure it’s the right answer.

I need help in understanding how to work it myself so please make sure you explain well.

Answers

Answer:

See below

Step-by-step explanation:

30×60×90 right triangle has side ratios as:

s : l : h = 1 : √3 : 2, where s- short leg, l - long leg, h - hypotenuse

45×45×90 right triangle has side ratios as:

l : l : h = 1 : 1 : √2, where l- legs, h- hypotenuse

If you know one of the sides its easy to find the missing ones.

a) 30×60×90 right triangle

Given l = 12s : 12 : h = 1 : √3 : 2CB = s = 12 / √3 = 12√3/3 = 4√3 AB = h = 2s = 2*4√3 = 8√3

b) 45×45×90 right triangle

Given l = √22BC = l = √22AB = l√2 = √22×√2= √44 = 2√11

c)  30×60×90 right triangle

Given h = 20√6s : l : 20√6 = 1 : √3 : 2BC = s = h/2 = 20√6/2 = 10√6AC = l = s√3 = 10√6×√3 = 10√18 = 10×3√2 = 30√2

Use the binomial formula to find the coefficient of the q^4 p^17
term in the expansion of (29+p)^21

Answers

Recal the binomial theorem:

[tex]\displaystyle (a+b)^n = \sum_{k=0}^n \binom nk a^{n-k} b^k[/tex]

Then

[tex]\displaystyle (2q+p)^{21} = \sum_{k=0}^{21} \binom{21}k (2q)^{21-k} p^k = \sum_{k=0}^{21} \binom{21}k 2^{21-k} q^{21-k} p^k[/tex]

We get the q⁴p¹⁷ term when k = 17, and its coefficient would be

[tex]\dbinom{21}{17} 2^{21-17} = \dfrac{21!}{17!(21-17)!} 2^4 = \dfrac{21\cdot20\cdot19\cdot18}{4\cdot3\cdot2\cdot1}\cdot2^4 = \boxed{95,760}[/tex]

what is the eqausion for 45 to 78

Answers

Answer:

23?

Step-by-step explanation:

78 minus 45 equals 23

This is the only reasonable answer I can decipher from your question.

if a wire of length 2 meters costs $10. find the cost of a wire of length 35cm $1.75

Answers

Answer:

$1.75

Step-by-step explanation:

if a wire of length 2 meters costs $10. find the cost of a wire of length 35cm $1.75

2m = 200 cm

200 : 10 = 35 : x

x = 10 * 35 : 200

x = 1.75

three are 6 blades on each windmill. how many total blades are on 7 windmills? use a fives fact to solve

Answers

Answer: 42 I think

Step-by-step explanation:

I did 6 times 7

Suppose that a department contains 7 men and 15 women. How many ways are there to form a committee with six members if it must have more women than men

Answers

Answer:

7502040

Step-by-step explanation:

you can have 6 women,5 women and 1 men,4 women and 2 men,

in first case,you can place women in 15*14*13*12*11*10 ways

in second case

15*14*13*12*11*7

and in third case

15*14*13*12*7*6

and you need to sum all this numbers

please help me with this soon much appreciated.

Answers

Answer:

1 : 2

Step-by-step explanation:

this is a 30-60-90 triangle which is a special right triangle. the ratio of the sides is x: x*sqrt(3): 2x, in the order short leg: long leg: hypotenuse. so the ratio of the short leg to the hypotenuse is x:2x or 1:2

You jog 2 kilometers in 12 minutes. Your friend jogs 3 kilometers in 16.5 minutes. Who jogs faster?

Answers

Answer:

your friend is faster.

Step-by-step explanation:

2 km in 12 min means 3 km in 18 min.

you friend jogs those same 3 km in 16.5 min, so he or she is faster.

What is the solution to the system of equations?



y = 2x -1



y = -x +5

Answers

x= −2 and y=3

I can't explain this very well, sorry.

The solution is:

x= 4/3

y= 11/3.

Step by step: (substitution)



2x+1=-x+5

Add x to both sides.


3x+1=5.

Subtract 1.

3x=4.

Divide by 3.


x=4/3.

Use 4/3 instead of x to find y.

y=-(4/3)+5

y= 11/3.

Hope this helped!! :)

Simplify the expression.

Answers

Answer:

[tex]21x^{2}[/tex]

Step-by-step explanation:

It would be 3x*7x

3x*7x

=21x*x

=[tex]21x^{2}[/tex]

Answer:

21x^2 ( twenty-one x squared)

Step-by-step explanation:

what is the formula for surface area of a pyramid?

what is the forumla for surface area of a square ​

Answers

for pysamid is ph+B2

hope it helps

What is the slope in the equation y = 2/5x - 6?

Answers

Answer:

2/5

Step-by-step explanation:

y=2/5x-6

m=2/5

y=mx+b

Slope:  2/5

y-intercept:  6

Step-by-step explanation:

Just Did Now, Am not Really good at asking questions

Find the measure of each angle indicated.

Answers

Answer:

alot of 5

Step-by-step explanation:

train tickets cost $48 for adults and $32 for children there are 27 adults and 55 children on the train how much did the passengers pay to ride the train​

Answers

$3,056
work
adult tickets:48x27=1296
children tickets: 55x32=1760
add the two totals 1296+1760= 3056

find 50% of 20
Find the answer I need it for Get More Math

Answers

Answer:

10

Step-by-step explanation:

1/2 of 20 is 10

Answer:

10

Step-by-step explanation:

What is square root of 27/4 to the nearest interger

Answers

[tex] \sqrt{ \frac{27}{4} } = \frac{ \sqrt{27} }{ \sqrt{4} } = \frac{ \sqrt{3 \times 2} }{ \sqrt{ {2}^{2} } } = \frac{3 \sqrt{3} }{2} = \frac{3}{2} \sqrt{3} \\ [/tex]

- BRAINLIEST answerer

PLEASE HELP EMERGENCY what is the solution to the equation ^3 square root 2x+5 =5

Answers

Answer:

60

Step-by-step explanation:

[tex] \sqrt[3]{2x + 5} = 5 \\ (\sqrt[3]{2x + 5} = 5) ^{3} \\ 2x + 5 = 125 \\ 2x = 120 \\ x = 60[/tex]

An operation is defined as p*q=-5q+p2 evaluate. 2*(7*3)

Answers

Answer:

- 166

Step-by-step explanation:

First step is to evaluate 7*3

7*3 ( with p = 7 and q = 3 )

= - 5(3) + 7²

= - 15 + 49

= 34

Now evaluate

2*34 ( with p = 2 and q = 34 )

= - 5(34) + 2²

= - 170 + 4

= - 166

Find the equation of the line that passes through (3,-4) and is parallel to 3x+y+2=0

Leave your answer in the form y=mx+c

Answers

Answer:

y=-3x+5

Step-by-step explanation:

it parallel to 3x+y+2=0 => line is: 3x+y+c=0

It through (3;-4) => 3(3)+(-4)+c=0 <=> c=-5

Line is 3x+y-5=0 => y=-3x+5

Answer:

Since it’s parallel to 3x+y+2=0 then it must be of the form 3x+y+k=0. Since (3,-4) is on the line we have 0=3*3-4+k=k+5, therefore k=-5 and the equation is 3x+y-5=0

In the form y=mx+c this becomes y=-3x+5

PLSSSSSSS HELPPPPPPPP ASAPPPP

Answers

Answer:

Answer should be choice 4

Step-by-step explanation:

i don't know what this is

Answers

Answer:

Me U Hungry Hungry Me Im Mad Me U Angry Me U Way Mad U Talk Mad Me Angry U:(

Step-by-step explanation:

False

True

Ture

False

HOPE THIS ANSWER HELPS YOU DEAR! TAKE CARE

Question 11 Objective: Solve for unknown side lengths of right triangles using trigonometric ratios. A right triangle has one angle that measure 27. The adjacent leg measures 29.6 cm and the hypotenuse measures 40 cm. What is the approximate area of the triangle? Round to the nearest tenth. Area of a triangle = 1/2bh а​

Answers

Answer:

A≈ 268.76 sq cm.

Step-by-step explanation:

sine 27 = opposite side/hypotenuse

sine 27 = x/40

sin 27(40) = x

18.15961999 =x

18.16 = x

A = 1/2(29.6)(18.1596199)

A = 268.7623759

A≈ 268.76 sq cm.

A parallelogram has an angle whose measure is 4 times the measure of
another angle of the parallelogram. What are the measures of the angles
of the parallelogram?

Answers

Answer:

The measures are 36 and 144 and similarly 36 and 144

Jessie typed the first 300 words of her essay in 12 minutes. Then she got tired and
typed the remaining 300 words in 15 minutes. What was the average speed of Jessie's
typing?

Answers

Answer:

whats 12x15

Step-by-step explanation:

Answer:

22.5

Step-by-step explanation:

300/12 = 25

300/15 = 20

25 and 20 average = 22.5

5. How is each centimeter on a ruler further divided?

tenths

fourths

sixteenths

O eighths.

Answers

Centimeters is divided into Tenths

what is the solution of the equation 9x+12=39

Answers

Answer:

X=3

Step-by-step explanation:

because 39-12=27 and 9x3=27 and 27+12=39

Answer:

x=3

Step-by-step explanation:

9x+12=39

9x=27

x=3

What is the slope for this table?

Answers

Do u have a graph?
Sheeeeeeeeeeeeeeeeeeeeeeeesh

Graph: y < 1/3x+1/2 can someone graph this on a actual graph for me

Answers

Answer:

here you go

Step-by-step explanation:

i have added y < 1/3x+1/2  --> this shows more of range so i also attached what  y = 1/3x+1/2 would look like

next time use this -

search up: desmos graphing calculator

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