Mathematics College

Help!!! Please please I don’t know this at all

Answers

Answer 1

Answer:

X+y=180, Y=Z, X+Z=180

Step-by-step explanation:

Hope this helps, i remember doing this lesson.

Answer 2

Answer: the two answers that contain 180

Step-by-step explanation:

Related Questions

Simplify
(6 + 4i) + (8 - 91) + (-2 + i)

Answers

Answer:

-79 + 5 i

Step-by-step explanation:

Answer:

Step-by-step explanation:

(6+4i)+(8-9i)+(-2+i)

6+4i+8-9i-2+i

6+8-2+4i-9i+i

12-4i

−|9| = −9 True or False

Answers

Answer:

false

Step-by-step explanation:

Answer:

false because the absolute value of -9 would be 9 not negativ 9

Camille has no more than $20.00 to spend each week for lunch and bus
fare. Lunch costs $3.00 each day, and bus fare is $0.75 each ride. Write an inequality for
this situation. Can Camille buy lunch 5 times and ride the bus 8 times in one week?

Answers

Answer:

No, because 5 x 3 is 15 and 8 x .75 is 6.So you add 6 and 15 then you get 21 so she would need an extra dollar

22.35 written form using proper words

Answers

twenty-two and thirty-five hundredths

The local garden store sells bags of mulch for $4.98 each and will deliver the bags for a fee of $15 if Amber purchases 15 bags and has them delivered what is the total amount that Amber will pay?

Answers

Answer:

$89.70

Step-by-step explanation:

To solve this equation, let's formulate a linear equation.

Let [tex]b[/tex] equal bags of mulch.

Let [tex]t[/tex] equal the total amount.

We know the price of each bag of mulch ($4.98), so we can represent this as:

[tex]4.98b[/tex]

We also know that there's a fee of $15, so we can just represent this as:

[tex]15[/tex]

Let's put these values into an equation:

[tex]t=4.98b+15[/tex]

Now with an equation, we know that she purchases a total of 15 bags, so let's substitute [tex]15[/tex] for [tex]b[/tex]:

[tex]t=4.98(15)+15[/tex]

Multiply:

[tex]t=74.70+15[/tex]

Add:

[tex]t=89.70[/tex]

Check your work by substituting the total amount into the initial equation:

[tex]89.70=4.98b+15[/tex]

Subtract [tex]15[/tex] from both sides of the equation:

[tex]74.70=4.98b[/tex]

Divide both sides of the equation by the coefficient of [tex]b[/tex], which is [tex]4.98[/tex]:

[tex]15=b[/tex]

Amber did in fact purchase 15 bags, so we know our total amount is correct!

A store pays $122 for a tennis racquet. If the store marks the tennis racquet up 30%, how much are they selling the racquet for?

Answers

Answer:

$158.60 for the racquet

y - 5 = 1/10 (x – 10)

How do you rewrite the equation in slope-intercept form?

Answers

you just have to add the five to both sides and then combine like terms
ignore the top equation

Answer.

Y=|10x-100|+5

The Valdez family bought a Blu-ray player on sale. The original price was $120. They received a 12% discount. How much did the Valdez family pay for the Blu-ray player after the discount?

Answers

Answer:

$105.60

Step-by-step explanation:

I think...

The ratio black to blue bags is 5 to3 if there is 10 black bags how many blue bags?

Answers

Answer: 6

Step-by-step explanation:

Complete the table.
x=0 and 4
y=1/3x+2

Answers

Answer:

sorry man but I don't understand what we have to complete, is it x? and if x is what we have to find, what does the and 4 mean? if you can upload a photo it would be better.

Step-by-step explanation:

wish you luck

For the function h (2) = 9+ 6x , what is the domain of function h if the range is
{-12, -3, 15, 24}?

Answers

Answer:

x = 1/6 (h(2) - 9), h(2) element R

3 plus 2 =
wzsxdcfgvbhjnkrdfvgbh

Answers

Answer:

Step-by-step explanation:

three plus two equals 5

Answer:

Step-by-step explanation:

3+2=5

What is the solution for this inequality?
8x<-32

Answers

Answer:

8x<-32

x<4

Step-by-step explanation:

divide both of these numbers by 8

Step-by-step explanation:

rhrufh38299917489xjqgs8cjrnjci

I will mark u as brainlest if you help me lots of points the one I choose was probably not right it was just right there

Answers

Answer:

2/5

Step-by-step explanation:

Why? Because probability is just possible values over total values, there is 4 red sections and 10 total sections, so the probability is 4/10 = 2/5.

Answer:

[tex]the \: poberbility \:is = \: \frac{number \: of \: red}{total \: number \: of \: color} = \frac{4}{10} = \frac{2}{5} [/tex]

can some one help me please

Answers

Angle addition postulate. Hope this helps!

If you do this question I will give you brainlest I know the right Awnser just want to test you help me out and I’ll give you brainlest and points

Answers

3% Although I'm probably wrong.

Answer:

13 - 10 = 33 & 13The proportion, x = 23.

Step-by-step explanation:

13 (i.e 100%) - 10 (i.e 77%) = 3 (i.e 23%)difference is 3 & original amount is 13The proportion, x = 23%

what is the gcf of x5 and x7

Answers

The GCF to x5 and x7 is X I think

Answer:

Step-by-step explanation:

the gcf of that is X

A line with a slope of -10 passes through the point (1,-10) what is it equation in slope intercept form?

Answers

Answer:

y=-10x

Step-by-step explanation:

m=-10

For (1,-10) a=1 AND b=-10

(use the formula y-b=m(x-a) to find the equation of the line)

y-b=m(x-a)

(sub the values of m (the slope) and a&b (from the point)

y - (-10) = (-10) × ( x - 1 )

(simplify)

y+10=-10(x-1)

(expand the bracket)

y+10=-10x+10

(subtract 10 for both sides)

y=-10x+10-10

(simplify)

y=-10x

A primatologist believes that rhesus monkeys possess curiosity. She reasons that, if this is true, then they should prefer novel stimulation to repetitive stimulation. An experiment is conducted in which 12 rhesus monkeys are randomly selected from the university colony and taught to press two bars. Pressing bar 1 always produces the same sound, whereas bar 2 produces a novel sound each time it is pressed. After learning to press the bars, the monkeys are tested for 15 minutes, during which they have free access to both bars. The number of presses on each bar during the 15 minutes is recorded. The resulting data are as follows:What is the alternative hypothesis? In this case, assume a nondirectional hypothesis is appropriate because there is insufficient empirical basis to warrant a directional hypothesis. What is the null hypothesis? Using ? = 0.052 tail, what is your conclusion? What error might you be making by your conclusion in part c?
Subject Bar 1 Bar 2
1 20 40
2 18 25
3 24 38
4 14 27
5 5 31
6 26 21
7 15 32
8 29 38
9 15 25
10 9 18

Answers

Answer:

It is statistically significant that mean of difference scores is different from 0

Step-by-step explanation:

Subject Bar 1 Bar 2 Difference

1 20 40 20

2 18 25 7

3 24 38 14

4 14 27 13

5 5 31 29

6 26 21 -5

7 15 32 17

8 29 38 9

9 15 25 10

10 9 18 9

Mean of difference =[tex]\frac{Sum}{10}=\frac{123}{10}=12.3[/tex]

Standard deviation s =[tex]\sqrt{\frac{(x_i-\bar{x})^2}{n}}=8.93[/tex]

Null Hypothesis : mean of difference scores is 0 : [tex]H_0:\mu=0[/tex]

Alternate Hypothesis : mean of difference scores is different from 0 : [tex]H_a:\mu \neq 0[/tex]

We will use t test for unpaired

[tex]t = \frac{x-\mu}{\sqrt{\frac{s^2}{n-1}}}\\t = \frac{12.3-0}{\sqrt{\frac{8.93^2}{10-1}}}\\t=4.13[/tex]

Level of significance (two tailed) =[tex]\alpha = 0.05[/tex]

Degree of freedom = n-1 = 10-1 =9

Using calculator

The p-value is .002559.

p value < α

So ,we reject null hypothesis

So, It is statistically significant that mean of difference scores is different from 0

Which expression is equivalent to (fa)(5)?

Answers

Answer:

ylyiky lio

Step-by-step explanation:

Write in slope intercept form:
(-4,6) slope= -3/4

Answers

Answer:

y=-3/4x+0

Step-by-step explanation:

Conversion Formulas
K = Cº + 273

Answers

Her answer is correct I hope that helps

Jack has let out 40 m of kite string when he observes that his kite is directly above Jill. If Jack is 25 m from Jill, how high is the kite?

Answers

Answer:

Use this formula:

A^2 + B^2 = C^2

40 is the hypotenuse of the triangle:

A^2 + 25^2 = 40^2

A=31.2 meters (Approx)

Which of the following fraction is an equivalent fraction for 2/7?

1. 8/11

2. 10/28

3. 6/21

4. 4/7

Answers

Answer:

6/21

Step-by-step explanation:

6/21 can be divided by 3 to equal 2/7

Answer:

the answer is c 6/21

Step-by-step explanation:

can i please have brainiest

WHAT IS 6 MULTIPLIED 6 + 2 +1

Answers

Answer: 108? I think haha-

Answer:

Step-by-step explanation:

6x6 is 36, and plus 3 it equals 38.

Add one.

39.

If (4,-9) is rotated 270° about the origin the new point would be :

A. (-9,-4)
B. (9, 4)
C. (-4,9)
D. (-9,4)

Answers

The correct answer is c -4,9

Mr. paulson has been on a train for 4 hours and traveled 320 miles. At this rate, how far will he traveled in 5 hours?

Answers

Answer:

at 5 hours he will have traveled 400 mi

Step-by-step explanation:

320÷4= 80

320=4, then 400=5

hope this helps

-21x^2+35x=0
Solve for x

Answers

Answer:

Step-by-step explanation:

exact form: x=63/5

What value of x is in the solution set of 8x-6 > 12 + 2x?
3
5

Answers

yes u are correct i believe

what is the value of x^2+4 for x=5

Answers

Answer:

25+4=29

thats your answer

PLEASE MARK AS THE BRAINLIEST

Answer:

Step-by-step explanation:

x^2+4

Let x= 5

5^2 +4

25+4

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Write and inequality that represents the situation. NEED ASAPPPPP!!! Does anyone know the answer to this??