solving systems of equation by elimination-solo team teach

2p+5a=9
3p-2q=4

Answer:

Step-by-step explanation:

You know that the three angles of a triangle add up to 180°. If one angle is 38° and another angle is 67°, then the third angle must be 180°-38°-67° = 75°.

You have a straight line across the bottom, and three angles meeting in the middle of it. Those three angles add up to 180°. One of them is 75°, another is 50°, so the third angle must be 180°-75°-50° = 55°.

That leaves you with one unknown angle. ? = 180°-40°-55° = 85°

Answer:

r + ¾ = ⁷/₈

r = ⁷/₈ - ¾

⁷/₈ - ⁶₈ = ¹/₈

r = ¹/₈

Step-by-step explanation:

but my original answer was 4/4

Given:

[tex]\cos \angle A=\dfrac{342}{1000}[/tex]

To find:

The measure of angle A to the nearest degree.

Solution:

We have,

[tex]\cos \angle A=\dfrac{342}{1000}[/tex]

It can be written as

[tex]\angle A=\cos ^{-1}\dfrac{342}{1000}[/tex]

[tex]\angle A=70.00123^\circ[/tex]

[tex]\angle A=70^\circ[/tex]

Therefore, the measure of angle A to the nearest degree is 70 degrees.

Answer:

64.2

Step-by-step explanation:

im not sure

Answer:

GCF of 21 and 70 = 7

Not sure about 4

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

7b/b = 7...(b does not matter)

Answer:

He multiplyed 3x8 and 5x8 when it should be 3x8 and 5x1 because you but 1 under the 8 to make it into a  fraction.

Step-by-step explanation:

Answer:

78.5

Step-by-step explanation:

pi r^2

22/7 * 5^2

Answer:

area = 78.540 cm ^2

Step-by-step explanation:

area = Pi (radius^2)

area = 3.14159(5^2) = 3.14159(25) = 78.5397

Answer:

2

Step-by-step explanation:

-2y+10+2y-8

-2y+2y+10-8

10-8

2

Answer:

2

Step-by-step explanation:

-2y and 2y cancel each other. That leaves you with 10-8=2

System of Equations:

c = -3h - 4

c = -2h - 7

Graph in Attached Image :-)

Answer:

C. supplementary

Step-by-step explanation:

Answer:

Probability that the product is an odd number =  [tex]\frac{1}{7}[/tex]

Step-by-step explanation:

Given - Patryk has 7 cards.  There is a number on each card.  2 3 4 5 6 7 8

            Patryk takes two of the cards at random.  He works out the product  

            of the numbers on the two cards.

To find - Work out the probability that the product is an odd number.

Proof -

As we know that Product of two numbers is odd iff both the numbers are odd.

So, we have to find the probabilty that both the card that Patryk choose is odd

Now,

Total number of cards = 7

Total number of odd cards = 3

So, Probability = ³C₂ / ⁷C₂

                       = [tex]\frac{3!}{2! (3-2)!}. \frac{2! (7 - 2)!}{7!}[/tex]

                      = [tex]\frac{3!}{2! (1)!}. \frac{2! (5)!}{7!}[/tex]

                      = [tex]\frac{3!}{(1)!}. \frac{ (5)!}{7.6.5.4.3!}[/tex]

                      = [tex]\frac{ 5.4.3.2.1}{7.6.5.4}[/tex]

                      = [tex]\frac{1}{7}[/tex]

∴ we get

Probability that the product is an odd number =  [tex]\frac{1}{7}[/tex]

Answer:

y = (2/3)x - 2

Step-by-step explanation:

The equation of this line is y = (2/3)x - 2, where m is the given slope and -2 is the given y-intercept.  We need only plug in the given values for m and b.

Answer:

[tex]y = \frac{2}{3} x -2[/tex]

Step-by-step explanation:

This is the slope-intercept form. The slope-intercept form is written as y = mx + b where m is the slope and b is the y-intercept. The y and x stay as they are.

I hope this was what you were looking for.

Answer:

8/15

Step-by-step explanation:

Unit rate is 8 / 15 acres per day.

"Work is defined as when force is applied on an object and it gets move in particular direction."

According to the question,

Group of workers plant  2/ 5 acres  in 3 /4 days

3 / 4 days = 2/ 5 acres

1 day =  [tex]\frac{2}{5}[/tex] × [tex]\frac{4}{3}[/tex]

⇒ 1 day = 8 / 15 acres

Hence, Unit rate is 8 / 15 acres per day.

Learn more about work  here

https://brainly.com/question/19624236

#SPJ2

Answer:

I think you would have to draw lines like is the graph book, you will see that they have two axes which is the y and the x.You will then have to fix in numbers and indicate the y= 2x+1.

Step-by-step explanation:

hope it helps

Answer:

640

Step-by-step explanation:

In order of operations, do exponents before multiplying.

8 squared= 64

64 x 10=640

Answer:

the answer is y= 2/1x + 10

Step-by-step explanation:

B=tan⁻¹(9÷22)

B=22.2

C=180-(97+22.2)

C= 180- 119.2

C= 60.8

Answer:

32 is the correct answer of this question

Answer:

mABD = 32°

Step-by-step explanation:

since,

.................................................

Answer:

2 x 25 (50)

3 x 25 (75)

Step-by-step explanation:

Answer:

Hello guys

Step-by-step explanation:

Hope it's helped you

Answer:

im sorry i dont understand but u can probably aks my friend

Step-by-step explanation:

so all i can do is give u her ig if u need it let me know ok bye hope u can answer it

Answer:

176

Step-by-step explanation:

91/9.10=0.10

17.60/0.10=176

Answer:

176

Step-by-step explanation:

Answer:

Right handed 41

Right handed male 18

Right handed female 23

Male employees 22

Female employees 32

Left handed 13

Left handed male 4

Left handed female 9

Answer:

hope it helps

Answer:

(0,1)

Step-by-step explanation:

0 because its intercept at 0 x-axis

1 because its intercept at 1 y-axis

also it is written in this way (0,1) because we write first the number on x-axis then y-axis