Mathematics High School

ABC is an isosceles triangle with AB = AC = 12 cm and BAC = 42q
Calculate the length, in cm to 3 significant figures, of BC

Answers

Answer 1

Answer:

yes

Step-by-step explanation:

Related Questions

a leopard runs 0.25 miles at an average speed of 40mph

Answers

Answer:

True

Explanation

Abby is collecting and bundling newspapers for recycling.

There is a proportional relationship between the number of bundles, x, and the weight in pounds, y, of the newspapers. What is an equation that represents the relationship between x and y?

Enter the correct equation in the box.

Answers

Answer:

y=1.5x

Step-by-step explanation:

Kenya is solving the equation 5 3/4 - 1/6x = 4 1/2. She gets to 1 1/4 = 1/6x. Is this a valid way to solve the equation? answer asap please

Answers

Answer:

15/2

Step-by-step explanation:

5 3/4 - 1/6x = 4 1/2

move the variable to it's own side.

5 3/4 - 4 1/2 = 1/6x

change the subtracting side to have common denominators

5 3/4 - 4 2/4 = 1/6x

1 1/4 = 1/6 x

divide both sides by 1/6, same thing as multiplying both sides by 6 (reciprocal)

30/4 = x

reduce: 15/2 = x

The value of x should be 15/2.

Calculation of the value of x:

Since

5 3/4 - 1/6x = 4 1/2

So, it can be like

5 3/4 - 4 1/2 = 1/6x

Now

5 3/4 - 4 2/4 = 1/6x

1 1/4 = 1/6 x

Now we have to divide both sides by 1/6

So,

30/4 = x

x = 15/2

Learn more about an equation here: https://brainly.com/question/24607813

whay do you get when you combine 7 and -3?​

Answers

the answer is 4

you just subtract 3 from 7

Answer:

4

Step-by-step explanation:

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3.
Choose an appropriate metric unit for the length of a pencil.


A. milliliter

B. liter

C. milligram

D. centimeter

Answers

Answer:

D

Step-by-step explanation:

because the liter things measure liquids and the gram one measures mass

Answer:

centimeter (cm)

Step-by-step explanation:

centimeters are the only measurement out of the answer choices that measures length. Milligrams are a measure of weight, and liters and milliliters both measure volume of a liquid.

Find x and y. (3,y),(1,9); slope= -5/2

Answers

Answer:

Francine has just set up her Christmas tree.  40% of her ornaments are red.  If she has 30 ornaments, then how many are red?

Step-by-step explanation:

PLEASE HELP (NO LINKS)(NO LINKS)

Answers

False it equals 7 !!!!!!!!!!!!!!!!!!

Question 1)

The expression:

11 more than one third of a number

Lets split this is up into parts to make it easier

"11", "more", "one third", "of a", "number"

Lets form the expression for each part,

"11" = 11

"more" = +

"one third" = 1/3

"of a" = *

"number" = n

That forms

11 + (1/3) * n or (1/3) * n + 11

Therefore the answer is D) (1/3)n + 11

Question 2)

Equation,

[tex]\frac{6+5*3}{2+1} = 11[/tex]

Left Hand Side

=[tex]\frac{6 + 15}{3}[/tex]                      (multiplication is first then addition)

=[tex]\frac{21}{3}[/tex]

= 7

7  [tex]\neq[/tex] 11

So, Left Hand Side [tex]\neq[/tex] Right Hand Side

Therefore the answer is false

Can someone help me with this. Will Mark brainliest. Need answer and explanation/work. Thanks

Answers

Answer:

AB ≈ 1095 yards

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

AB² + BS² = AS²

AB² + 1300² = 1700²

AB² + 1690000 = 2890000 ( subtract 1690000 from both sides )

AB² = 1200000 ( take the square root of both sides )

AB = [tex]\sqrt{1200000}[/tex] ≈ 1095 yd ( to the nearest yard )

please help quick it is almost due :(

Answers

Answer:

1 and 2

Step-by-step explanation:

b + 12 = 16; 2, 3, 4

It's for a test and it's due REALLY SOON! I WILL GIVE BRAINLIEST!!!!! :)

Answers

Answer:

4

Step-by-step explanation:

b+12 =16

-12. -12

b = 4

hope this helps

Write the equation of the line that is perpendicular to y=1/2x+3 and has a y-intercept of -4

Answers

Answer:

y=-2x-4

Step-by-step explanation:

When an equation is perpendicular, then it is the equation's inverse. The inverse of 1/2 is -2

The y-intercept is b in y=mx+b. In this equation, b=-4

Write the equation of a line in slope-intercept form with a slope of −13 and a y-intercept of 4 .

Answers

Answer:

y = -13x + 4

Step-by-step explanation:

You want to put it in the form y = mx + b where m is the slope and b is the y-intercept (For example, in the equation y = 2x + 3 the slope is 2 and the y-intercept is 3)

Since the slope is -13, m = -13.

Since the y-intercept is 4, b = 4.

This means the equation is y = -13x + 4

y=mx+b
y=-13/1x+4 or y=-13x+4

The price of a new car is $3500 and after 1 year it decrease
by 20%. Find the value now.​

Answers

20%=20\100

20\100×3500

=700

Which ratio is equivalent to 3:18?
A 6:21
B 5:20
( 7:42
D 12:2

Answers

C 7:42 you just calculate the ratio of an amount then divide by the total number of parts in. The ratio and then multiply this answer by the original ratio

The ratio is equivalent to 3:18 is 7:42.

What is Ratio?

A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.

Given:

Ratio = 3:18

         = 1: 6

1. 6:21

= 3:7

2. 5:20

= 1:4

3. 7:42

= 1:6

4. 12:2

= 6:1

Hence, the ratio is equivalent to 3:18 is 7:42.

Learn more about Ratio here:

https://brainly.com/question/13419413

#SPJ5

Help me with this!! Will mark Brainliest

Answers

Answer:

JL is not congruent to KM

Step-by-step explanation:

The length of JL is 23-21 = 2.

The length of KM is 25-22 = 3

So, because the lengths are not equal,

JL is not congruent to KM

0.3z=0.009 please find the value

Answers

Answer:

z = 0.03

Step-by-step explanation:

0.3 z ÷  0.3 = 0.009 ÷ 0.3

z = 0.009 ÷ 0.3

alterinate form z 3/100, z = 3 x 10^-2

Sasha carries a balance on her credit card each month. In May, she decides she wants to use her card to buy a new dishwasher. Which part of the billing cycle should she make her purchase to keep her finance charges to the minimum.

Answers

Answer:

her

Step-by-step explanation:

Rachelle is diving from a platform 33 feet above the water. Her height in feet above the water during the dive can be modeled using h(t)=−16t2+8t+33, where t is the time in seconds after she jumps from the platform.

Drag inequalities to the table to match the description in each row.

Answers

Answer:

Step-by-step explanation:

did it on ttm

what is the solution of
2x-5=3

Answers

Our goal is to solve for x
Our first step is to add 5 to both sides
2x = 8
Our next step is to divide both sides by 2
x = 4

HELLPPP AGAINNN PLSSS​

Answers

Answer:

D)

Step-by-step explanation:

help me with this please I'm bad atmath​

Answers

Answer:

2.3 and put a line on top of 3

Step-by-step explanation:

Answer:2.3

Step-by-step explanation:

PLEASE HELP AND HURRY!!!

Are the polygons similar? If they are, write a similarity statement and give the scale factor. The figure is not drawn to scale.

A) JKML - PSRQ; 8:1.5
B) JKML - PQRS; 8:4.8
C) JKML - PQRS; 2.5:4.8
D) The polygons are not similar.

Answers

Answer:

B) JKML ≈ PQRS; 8:4.8

Step-by-step explanation:

8:4.8 = 2.5:1.5

∠J = ∠P

B) JKML ≈ PQRS; 8:4.8

8:4.8 = 2.5:1.5

∠J = ∠P

What is problem-solving?

Problem-solving is the act of defining a problem; figuring out the purpose of the trouble; identifying, prioritizing, and selecting alternatives for an answer; and imposing an answer.

Problem-solving starts with identifying the issue. As an example, a trainer may need to parent out a way to improve a scholar's overall performance on a writing talent test. To do that, the instructor will overview the writing exams looking for regions for improvement.

Learn more about Problem-solving here: brainly.com/question/13818690

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What is the value of q in the equation 0.5q = 6.25?

A. 12.5

B. 6.75

C. 5.75

D. 3.125

Answers

Answer: D

Step-by-step explanation:

3.125 / 0.5 = 6.25

Miguel's parents earned $39,097 for the year. During the year they paid $8,210 in taxes. At the end of the year when taxes are calculated, they calculate that they need to pay $9,195 in total taxes. How much more will they need to pay? need answerssss ASAPPPPPPPP

Answers

Answer:$21,662

Step-by-step explanation:

$8,210+ $9,195 -$39,097=$21,662

What is 77 .35 divided by 3.5

Answers

Answer:

22.1

Step-by-step explanation:

77.35÷3.5=22.1

Have a wonderful day!

If using the method of completing the square to solve the quadratic equation x2 - 6x – 7 = 0, which number would have to be added to "complete the square"?​

Answers

Answer:

(-3)^2

Step-by-step explanation:

You add 7 on both sides, giving you x^2 - 6x = 7

Then, take half of b, and square it. Giving you x^2 - 6x +(-3)^2 = 7

The answer will be (-3)^2 for this question, but this is not the full solution.

Hope this helped. Good luck on the rest!

help meee pls 100 points for help plssss

Answers

I think 50 and 6 I’m not sure but that’s my best guess

Answer:

50 and 6 I’m not sure

Hello! How does it work that when you multiply fractions by a whole number the whole number goes down?

Answers

Answer:

Because multiplying a whole number w/ a fraction is the same as dividing a whole number w/ the same fraction but the numbers are flipped.

Step-by-step explanation:

Which point should Polly connect to point E to make a 30° angle?

Answers

Answer:

D.

Step-by-step explanation:

If she connects it to any other point the angle would be more then 30 degrees.

How To Construct A 30 Degree Angle. A 30° angle is half of a 60° angle. So, to draw a 30° , construct a 60° angle and then bisect it.

Use at least 8 oz. of coffee. On a Number line

Answers

You just put 8 on the number line
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