Mathematics High School

Please help on these :(

Answers

Answer 1

Answer:

#13. line QR is 26.

#14. a) x = 2 b) m = 6

Step-by-step explanation:

13. We can use the Pythagorean therom: a^2 + b^2 = c^2

We will substitue PQ for a and PR for b

10^2 + 24^2 = c^2

100 + 576 = c^2

100 + 576 = 676

Then, we find the square root of 676, which is 26.

14. a) 3(2x -1) = 9

we first use distributive property:

6x - 3 = 9

then we add 3 to both sides to counteract the -3:

6x = 12

we divide both sides by 6 to get x alone:

x = 2

b) 3m - 12 = 6

we add 12 to both sides to counteract the -12:

3m = 18

we divide both sides by 3:

m = 6

Related Questions

I need helppp plzz
i'll brainliest

Answers

Answer:

Step-by-step explanation:

Since B is the midpoint, AB must be equal to BC.

AB = BC

7x - 4 = 3x + 32

Isolate the variable

7x - 4 = 3x + 32

4x = 36

x = 9

Now solve for one side.

AB = 7x - 4

AB = 7(9) - 4

AB = 59

Since both sides are equal, finding AC just means multiplying one side by 2.

AC = AB * 2

AC = (59) * 2

AC = 118

You can double check by finding the other side and multiplying by 2.

BC = 3x + 32

BC = 3(9) + 32

BC = 27 + 32

BC = 59

AC = BC*2

AC = 59*2

AC = 118

Let me know if you have any questions!

The sixth-grade classes have 28, 20, 30, and 25 students. What is the mean number of students in a class?

Answers

Answer:

25.75

Step-by-step explanation:

mean=sum of all numbers/number of numbers given

we have 4 numbers given 28,20,30 and 25

mean=28+20+30+25/4

mean=103/4

mean=25.75 :)

Viola makes gift baskets for Mother’s Day. She has 13 baskets left over from last year, and she plans to make 5 more each day. If there are 15 work days until the day she begins to sell the baskets, how many baskets will she have to sell? I can't find the rule of the equation.

Answers

Answer:

88 blankets

Step-by-step explanation:

5 times 15 = 75

75 + 13 = 88

What number is 15.26 more than the difference of 346.18 and 215.37?

Answers

Answer:

146.07

Step-by-step explanation:

Let's take this question one step at a time. First, we'll find the difference of 346.18 and 215.37. This is equivalent to 130.81. Then, we have to find the number that's 15.26 more than 130.81, and this is equivalent to 146.07. So, our final answer is 146.07.

If you have any further questions, let me know!

jasmine's cell phone company charges her $35 for the month plus an additional $1.50 for everyday she goes over her data. this month, she was charged $44. how many days did she go over her data?

Answers

Answer:

6 days

Step-by-step explanation:

$44 - $35 = $9

$9/$1.50 = 6 days

Ayuda por favor, no quiero reprovar

Answers

Con qual y re toma la photo porfa.

Parallel to y= -3/4x + 1 passes through (8,5)

Answers

Answer:

y=-3/4x+11

Step-by-step explanation:

Graph the point and draw a line having -3/4 as a slope and see what the y intercept of that same line is. Then that y intercept goes after the -3/4x in the new equation.

Hilda adds 5 to a number, then multiplies the sum by negative 2. The result is 6.

Answers

Answer:

The answer would be negative 8 because -8 + 5 = -3 and -3 x -2 = 6

Step-by-step explanation:

The answer would be negative 8 because -8 + 5 = -3 and -3 x -2 = 6

3 pls pls pls help me

Answers

Answer:

I think the answer is c

Step-by-step explanation:

In the coordinate plane, point A(-1,-1) is translated to point A' (-3.-3). Under the same translation, the points B(-4,-4) and C(5.-5) are translated to B' and C' respectively. What are the coordinates of B' and C'?

Answers

Answer:

B' (- 6, - 6 ) , C' (- 7, - 7 )

Step-by-step explanation:

Consider the coordinates of A and A'

A (- 1, - 1 ) , A' (- 3, - 3 )

- 1 to - 3 in both the x and y direction means subtracting 2 units , then

translation rule is

(x, y ) → (x - 2, y - 2 ) , then

B (- 4, - 4 ) → B' (- 4 - 2, - 4 - 2 ) → B' (- 6, - 6 )

C (- 5, - 5 ) → C' (- 5 - 2, - 5 - 2 ) → C' (- 7, - 7 )

In a batch of 8000 clock radios 5% are defective. A sample of 13 clock radios is randomly selected without replacement from the 8,000 and tested. The entire batch will be rejected if at least one of those tested is defective. What is the probability that the entire batch will be rejected

Answers

Answer:

Step-by-step explanation:

P(A)=1−P(not A)

We can use this here. Event A is that the clock is defective, so Event (not A) means the clock works.

0.02=1−P(not A)

P(not A)=0.98

Therefore, for all the clocks to pass, the probability is P(not A)11.

Now again, we can use complementary counting.

(probability of all clocks failing) = 1 - (probability of all clocks passing)

Probability of all clocks failing = 1−P(not A)11

120-20/10+2
help quick due in 10 min

Answers

[tex]120 - \frac{20}{10} + 2 \\ 120 - 2 + 2 \\ = 120[/tex]

Answer:

120

Step-by-step explanation:

120-20/10+2

=120-2+2

=120

hi please help :)????

Answers

there's not information for me to help. what are the choices in the word box?

The square of the sum of two consecutive positive even integers is greater than the sum of their squares by 48. Find the two integers.

Answers

Answer:

4 and 6 or -6 and -4

Step-by-step explanation:

Let the numbers are 2x and 2x + 2.

We have:

(2x + 2x + 2)² = (2x)² + (2x + 2)² + 484(2x + 1)² = 4x² + 4(x + 1)² + 48(2x + 1)² = x² + (x + 1)² + 124x² + 4x + 1 = x² + x² + 2x + 1 + 122x² + 2x - 12 = 0x² + x - 6 = 0(x - 2)(x + 3) = 0x = 2, x = -3

The numbers are:

4 and 6 or - 6 and - 4

Can someone explain how the following Matrix can be multiplied? I thought the column of the first matrix had to match the row of the second and the row of the first had to match the column of the second. I how the matrices listed below as (1x3) and (3x3) respectively. Yet my online Pre-cal course says it's possible. Please explain why this is so.

Answers

You are correct in thinking that the columns of the first matrix must match with the rows of the second matrix.

So for example, we can multiply a 1 x 5 matrix with a 5 x 7 matrix. The two matching '5's are directly what make multiplication possible in this case. For your problem, the first two '3's match and multiplication is possible.

The rows of the first matrix don't need to match with the columns of the second matrix.

HELP I NEED AN ANSWER ASAP!! IM BEING TIMED!!

For this year‘s prom, 35/12 grade students and 28th 11th grade students voted on the theme. The segment take a bar graph below shows the distribution of responses.

Based on the segmented bar graph, does there appear to be an associates between grade level and prom theme?

A yes, there is a different number of students in each class.
B yes, it appears that the 12th grade students prefer the 1920s more than the 11th grade students, and prefer the beach party less.
C no, both distributions of student preferences have the same four categories.
D no, both distributions of student preferences have about the same preference for each of the prom themes.
E no, by the same number of students in each class. Preferred winter wonderland and masquerade ball as prom themes.

Answers

Answer:

Step-by-step explanation:

Logically and if you observe the graph closely ┐( ∵ )┌

The answer is yes, there appears to be an association between grade level and prom theme based on the segmented bar graph. The Option B is correct

Is there an association between grade level and prom theme?

The graph shows that 12th-grade students prefer the 1920s theme more than the 11th-grade students do, and they also have a lower preference for the beach party theme. This indicates a difference in preferences between the two grade levels for these specific prom themes.

This graph provide information on whether both distributions have the same four categories or whether they have the same preference for each of the prom themes, so, its indicate whether the number of students in each class is the same or not.

Answers

Step-by-step explanation:

The five true phyla of fungi are the Chytridiomycota (Chytrids), the Zygomycota (conjugated fungi), the Ascomycota (sac fungi), the Basidiomycota (club fungi) and the recently described Phylum Glomeromycota.

7/8÷2/3= __
can i get only the answer

Answers

Answer:

21/16

Step-by-step explanation:

hope it hepls pa brainlest na din po

Answer:

in fraction= 1 5/16

in decimal = 1.3125

Kyle, Meg & Dan share some money in
the ratio 3:2:7
What fraction of the money does Meg get?

Answers

Answer: 1/5 of the money

Step-by-step explanation:

The ratio shows that Kyle gets 3 parts of the money, Meg gets 2 parts of the money, and Dan gets 7 parts of the money. Simple addition lets us know there are 10 parts of the money, and because Meg got 2 of them, she has 2/10ths of the money, or 1/5.

Hope it helps :) and let me know if you want me to elaborate.

3 over 7 = blank over 35

Answers

Answer:

15/35

Step-by-step explanation:

7 x ? =35

7 x 5 =35

whatever you do to the bottom , you do to top so you times 3 by 5.

3 times 5 = 15, therefore, it is 15/35

Answer:

15 over 35

Step-by-step explanation:

35/7 = 5

5*3 = 15

then:

3/7 = 15/35

Which of the following is a Platonic solid?
A torus
B. sphere
C. tetrahedron
D. cylinder

Answers

Answer:

c. tetrahedron

Step-by-step explanation:

A different store needs to make at least $20,000 to make a profit in March. They average $685 a day for the month. James used rounding and estimation to say, “$685 is almost $700. $700 × 30 days is $21,000. I think it is going to be a close call!” What do you think?

Answers

Look at this . This will make you forget about the question .

the simple interest on $700 for 2 years at 10% is ?

Answers

Answer:

140

Step-by-step explanation:

∫P=700

∫T=2

∫R=10% after a few calculating you get 140.....the answer is right just sorry for my bad explaining

please help with these question, giving brainliest :)

Answers

Answer:

Step-by-step explanation:

in a sale, a clothes shop reduces its price by 45%.a shirt usually costs $27how much is it on sale?

Answers

it cost $14.85 because 27x0.45=12.15
27.00
-12.15= 14.85

Hey can you help me out with this problem?

Answers

Answer:

Step-by-step explanation:

20/2=10 smores

Question:What is the equations of this function?

Plz help will give brainiest

Answers

The answer the the graph is -2x^2.

add the expression (1/4x - 4 + 2y) + (2/5x + 5 - 4y)

Answers

Answer:

= 13/ 20 x − 2y+1

Here's your answer, I hope you enjoy.

If the diagonals of a rhombus are of length 24 & 32 cm, find the altitude of the rhombus.

a) 15.8 cm
b) 14.2 cm
c) 12 cm
d) 19.2 cm

Answers

Hello Carousel!

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

If the diagonals of a rhombus are of length 24 & 32 cm, find the altitude of the rhombus.

a) 15.8 cm

b) 14.2 cm

c) 12 cm

d) 19.2 cm

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

Please refer to the attached picture for the answers with steps included.

NOTE :-

The sides of a rhombus are equal to each other.The point of intersection of the diagonals (marked as O in the figure) forms 90° angles (which is why we used the pythagoras property to solve the question).Since 0 is the point of intersection, it's also the midpoint of the diagonals. (So, BO = ½ × BD & AO = ½ AC -- we used this to solve the question).

__________________

Hope it'll help you!

ℓu¢αzz ッ

need help!! I would give you brainliest if it is correct <3

Answers

Answer: No

Step-by-step explanation:

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