Mathematics College

will mark brianliest please help

Answers

Answer 1

Answer:

See below.

Step-by-step explanation:

7x^2 = 343 Divide both sides by 7

7x^2/7 = 343/7

x^2 = 49 Take the square root of both sides.

sqrt(x^2) = sqrt(49)

x = +/- 7

Answers

7- 7sqrt(49)- sqrt(49)

I think the last two are kind of iffy. I'm not sure you can call them solutions, but the question probably assumes they are. If you use all four answers and get it wrong, them submit +7 and - 7.

Related Questions

Identify all the two-dimensional figures that are cross-sections for each of the three-dimensional solids.
Cube

pentagon
square
triangle
rectangle
octogon
hexagon
trapezoid

Answers

Answer:

square, triangle, trapezoid,rectangle

The Two-dimensional figures are square, triangle, rectangle, and trapezoid.

What are two-dimensional figures?

Two-dimensional shapes do not have any thickness and can be measured on only two faces. These can be drawn on a sheet of paper with the constitution of two axises only.

The Two-dimensional figures that are cross-sections for each of the three-dimensional solids are:

squaretrianglerectangletrapezoid

Learn more about two-dimensional, here:

https://brainly.com/question/1211190

#SPJ2

In ΔLMN, the measure of ∠N=90°, MN = 3.4 feet, and NL = 7.5 feet. Find the measure of ∠L to the nearest tenth of a degree.

Answers

Answer:

24.4

Step-by-step explanation:

just did it delta

Una caja contiene cinco bolas blancas, tres bolas negras y dos rojas.

¿Cuál es el minimo de bolas rojas que tendrías que añadir para que la probabilidad de
escoger una bola roja sea?
b. ¿Cuál es el mínimo de bolas negras que tendrías que añadir para que la probabilidad de
escoger una bola negra sea ?

Answers

Answer:

la primera es 10 la segunsa es 8000000000000

The scatter plot shows the heights ( in inches) and the shoe sizes of eight men. What is the height of the man whose shoe size is 12?
NO LINKS!!!

Answers

Answer: 72 inches

Step-by-step explanation:

Chloe flips a fair coin 2 times. What is the probability that she will flip tails both times?

Answers

Answer:

25%

Step-by-step explanation:

If you flip a coin twice, sometimes you get tails twice in a row. That is because each time you flip the coin, the odds remain 1/2; the two flips are independent of each other. The odds of getting tails twice in a row are 1/2 * 1/2 = 1/4. So 25% of the time you'll get heads twice in a row

25% is the correct answer

someone help i cannot open files please type

Answers

Answer:

175..................................

Which statement is true?
4
O A. As the value of a positive number
increases, the absolute value of
the number decreases.
O B. As the value of a positive number
decreases, the absolute value of
the number increases.
O C. As the value of a negative number
increases, the absolute value of
the number decreases.
5
O D. As the value of a negative number
decreases, the absolute value of
the number decreases.

Answers

The answer is b it depends on the number

option D is true statement. that is the absolute value of the negative number will decreases with decreases in negative number.

What is Absolute value of a number?

Absolute value describes the distance from zero that a number is on the number line, without considering its direction that is the absolute value of a number is never negative.

In other words Absolute value is the modulus of any number.

A ) False : the absolute value of the positive number will increase with increase in positive number.

B ) False : the absolute value of the positive number will decreases with decreases in positive number.

C) False : the absolute value of the negative number will increase with increase in negative number.

D) TRUE: the absolute value of the negative number will decreases with decreases in negative number.

Therefore, option D is true.

Answers

Answer:

36pie inch²

Step-by-step explanation:

Answer attached

Hope it helps :)

is finding the perimeter of a figure with all sides of equal length easier tgan finding the perimeter of other figures?

Answers

Answer:

yes, there are fewer numbers to compute.

It's just one length x the number of sides.

Step-by-step explanation:

each section in a stadium has 2460 seats. if there are 12 rows in each section, how many seats are in each row?

Answers

Answer:

your answer is 117

Step-by-step explanation:

2460÷12=117

i hope this helps

have a nice day/night

mark brainliest please :)

Can someone help me with these two problems

Answers

Answer:

1》Arc ZWX=180+35=215

2》m<0=2×m<R

m<0=2×37

m<0=74

Hope it helps...

explanation is not right answer but I tried...would u give this a like....don't star it tho....I stopped midway....I thought in first question measure meant length of arc...not angle

Anyway first question actual answer = 180+35= 215°

second question answer= 2*37= 74 (The angle subtended by an arc of a circle at its center is twice the angle it subtends anywhere on the circle's circumference)

Step-by-step explanation:

ANSWER IS WRONG SO DONT CHECK

Angle of half circle is 180°

so <WCX + <XCY + <YCZ = 180°

35° + <XCY + 73°= 180°

108° + <XCY= 180°

<XCY= 180-108

<XCY= 72°

<WCR= <XCZ

<WCR= <XCY + <YCZ

<WCR= 72° + 73°= 145°

<ZCR= <WCX

<ZCR = 35°

Length of arc = theeta (angle)/ 360 * 2πr

length of ZWX= <ZCW +<WXC/ 360 * 2π

I stopped here

(-6) (-7)= equals what?

Answers

Answer: 42

Step-by-step explanation:

A negative number times a negative number will have a positive product.

(-6)(-7)=42

Hope this helps

ANSWER !!
ILL GIVE 40 POINTS !!
DONT SKIP :((
PLUS BRAINLIEST !

Answers

Answer:

24 square kilometers

Step-by-step explanation:

Well, this is a trapezoid. The formula for the area of a trapezoid is 1/2 the height times base one plus base two. In other words, 1/2 h x (base 1 + base 2)

So in this case, the two bases are 4 and 12. So we would add the two bases to get 16. Now, we have to half the height. 3 divided by 1/2 is 1.5. So we then do the last step which is multiplying the height by the two bases. So in other words, 1.5 times 16. And 1.5 times 16 is 24. Therefore, the answer is 24 sqaure kilometers.

Answer:

Step-by-step explanation:

PLEASE ANSWER ASAP! NO SCAM LINKS OR REPORTED.

Answers

Answer:

Its A

Step-by-step explanation:

Standard equation: y=mx+b

x+y=0

-x -x

y=-x+0

Tell whether b=6 is a solution of 8b=48

Answers

Answer:

b= 6 for sure

Step-by-step explanation:

Solve the following equation for x.

m(7-x) = 5-y

Need help ASAP!!! Will mark brainliest if correct!!

Answers

The answer is x= y-5 /m

See the picture for explanation plz

Please help and explain

Answers

Answer:

(a)

[tex](2,0)[/tex]

(b)

[tex](0,-2)[/tex]

Step-by-step explanation:

Given

[tex](x_1,y_1)= (4,2)[/tex] --- point

[tex]m =1[/tex] -- slope

Solving (a): The zeros of the function

First, we calculate the equation using:

[tex]y = m(x - x_1) + y_1[/tex]

This gives:

[tex]y = 1 * (x - 4) + 2[/tex]

Open bracket

[tex]y = x - 4+ 2[/tex]

[tex]y = x -2[/tex]

The zeros also is: [tex]y=0[/tex]

[tex]0 = x - 2[/tex]

[tex]x =0+2[/tex]

[tex]x =2[/tex]

So, the solution to be is

[tex](2,0)[/tex]

(b) The y intercept is:

Substitute [tex]x=0[/tex]

[tex]y = 0 -2 = -2[/tex]

We have:

[tex](0,-2)[/tex]

I NEED HELP PLESE I BEG YOUUUU

Answers

Bro I hate when people saying put smh files

Can someone help me with this?

Answers

9514 1404 393

Answer:

π/4, 7π/4

Step-by-step explanation:

Adding √2 and dividing by 2 makes the equation ...

cos(θ) = (√2)/2

The first-quadrant solution is ...

θ = arccos((√2)/2) = π/4

The angle in the 4th quadrant with the same reference angle will have the same cosine value.

θ = 2π -π/4 = 7π/4

The two solutions are θ = π/4, 7π/4.

Number of spots
32
30
28
26
24
22
20
18
16
14
12
10
...
.
2 3 4 5 6 7 8 9 10 11 12 13
Weight (g)
A. negative
Ο Ο Ο
B. parabolic
C. strong

Answers

Answer:32 30 28 16

Step-by-step explanation:

A glass prism on a chandelier is 80 millimeters long. A base of the prism is an equilateral triangle with side lengths of 9 millimeters and a height of about 5.8 millimeters. What is the approximate surface area of the prism?

Answers

Let's find the area of the equilateral triangle first:

There are two triangles - one on each end. So we multiply our previous expression by 2.

Each rectangle is 75 millimeters long and 9 millimeters wide: 75*9 mm^2.

We have 3 rectangles each the same size so we multiply 75*9 by 3.

75*9*3 = 2025

2025 + 70.2 = 2095.2

A spinner has 3 equal sections labeled X, Y, and Z. Jinghua spins this spinner twice. Which represents all the possible outcomes for Jinghua?

Select one:

XY, XZ, YX, YZ, ZX, ZY

XX, XY, XZ, YX, YY, YZ, ZX, ZY, ZZ

X, Y, Z

XX, YY, ZZ
acually anwser or i'll report u

Answers

Answer:

XX, YY, ZZ

Step-by-step explanation:

how do you find lateral surface area

Answers

Answer: This lateral surface area can be calculated by multiplying the perimeter of the base by the height of the prism. For a right circular cylinder of radius r and height h, the lateral area is the area of the side surface of the cylinder: A = 2πrh.

Step-by-step explanation:

Dont steal points please if you do you will get repo answer all please I will give brainliest if its correct and 5 stars rating and the heart thanks.

Answers

Answer:

Here is the work I did yesterday for you

Step-by-step explanation:

I deposited $ 50,000.00 in Chase Bank at 4%. How long my money has to stay in the bank to double ?

Answers

whyu

Step-by-step explanation:

.whyww

Classify the triangle as acute, obtuse, or right based on the given side
lengths. *
8, 17, 19
Acute
Obtuse
Right

Answers

Answer:

Obtuse

Step-by-step explanation:

Pythagorean thm:

a² + b² = c²

8² + 17² = 19²

64 + 289 = 361

353 = 361

Since c (the hypotenuse) is bigger than the legs combined, the triangle is obtuse.

Nicholas is currently in eighth grade and intends to attend a state college when he finishes high school. Nicholas’s parents currently have some money invested in mutual funds, but would like to invest this money in a more secure investment now to pay for college in 4 years. If they will need $25,000, how much do Nicholas’s parents have to invest now in a 48month CD that has a rate of 4.59% compounded monthly?

Answers

Answer: he has 10 monthly

Step-by-step explanation:

see from the question

Andrew is shooting arrows at a target.
The experimental probability that one will hit a bulls eye is 1/4. If he shoots 60 arrows, how many times can he expect to hit a bulls eye?

Answers

Answer:

Step-by-step explanation:

60/4 = 15

So, Andrew would probably hit a bullseye 15 times.

Marcus is painting the outside of a shoe box for an art project. The box is 9 cm x 10 cm x 3 cm. How much paint does Marcus need?

Answers

Answer:

294 cm^2

Step-by-step explanation:

This question is asking for the surface area of all 6 sides of the Shoe box. Hence we will have to multiply all the dimensions with each other twice to get the surface area of all the sides.

9x10x2=180

9x3x2=54

10x3x2=60

Adding them together we get 294 cm^2.

Find the value of x.
(a)
(10.7)" = 2
3x92x1 = 27*
(b)

Answers

Step-by-step explanation:

where is x in the question

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