f(x) = -3x2 – 20
Find f(-7)​

Answer:

A true

Step-by-step explanation:

It is the correct answer i have read this

Answer:

a=28m^2

Step-by-step explanation:

Given:

l=14m

w=200cm

Required

a=?

w in meters

Formula:

1m=100cm

b=200cm---criss cross it

b*100cm/100cm=1m*200cm/100cm

b=2m

a=l*w

a=14m*2m

a=28m^2

Answer:

[tex]1[/tex]

Step-by-step explanation:

[tex]9 - b = 9 - 8 = 1[/tex]

Hope this helps ;)❤❤❤

Answer:

Hopefully correct:-

Step-by-step explanation:

8-6(a+7)=-28

2(a+7)=-28

(a+7)=-28-2

(a+7)=-30

a=-30-7

a=-37

Answer:

The answer is "0.666667".

Step-by-step explanation:

Given value:

[tex]1 \text{cup of lemon-lime} : 1 \frac{1}{2} \text{cups of punch}[/tex]

calculate value:

[tex]\to 1\ \text{cup of lemon-lime} : \frac{3}{2} \ \text{cups of punch}[/tex]

[tex]\to 1 \div \frac{3}{2}\\\\\to \frac{1} {\frac{3}{2}}\\\\\to \frac{1} {\frac{3}{2}}\\\\\to 1 \times \frac{2}{3}\\\\\to \frac{2}{3}\ \ \ \ Or \ \ \ \ 0.666667[/tex]

Answer:

EF is the longest side of △DEF.

DF = 6 cm

DE = 6√ 3 cm

Step-by-step explanation:

got it right edg 2021 :)

Answer:

Measure of angle E = 55

Length of EF = 12.49

Step-by-step explanation:

I got it right

Answer:

Step-by-step explanation:

[tex]t \:\alpha\: \sqrt[3]{s} \\t = k\sqrt[3]{s} \:..........(1)\\\\t = 4, s = 64\\\\Substitute \:the \:values\:into \: equation\: 1\\4 = k\sqrt[3]{64} \\4 = 4k\\Divide \:both\:sides\:of\:the\:equation\:by\:4\\\frac{4}{4}= \frac{4k}{4} \\k = 1\\Substitute k \:for\:1 \:in\:equation\:1\\t = 1\sqrt[3]{s} \\t = \sqrt[3]{s} \:= Formula\:connecting\:t\:and\:s[/tex]

1.

[tex]t = ? , s=125\\\\t = \sqrt[3]{s} \\\\t = \sqrt[3]{125} \\\\t = 5[/tex]

2.

[tex]s = ? , t= 2\\\\t = \sqrt[3]{s} \\\\2 = \sqrt[3]{s} \\Cube\:both\:sides\:of\:the\:equation\\2^3 = \sqrt[3]{s} ^3\\\\8 =s\\s =8[/tex]

Answer:

C) [tex]-4x+2y[/tex]

Step-by-step explanation:

[tex]6x-3y+5y-10x[/tex]

[tex]6x-10x-3y+5y[/tex]

[tex]-4x-3y+5y[/tex]

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

Answer:

it is only acute

Step-by-step explanation:

False: equilateral triangle has 3 equal sides and 3 equal angles measure 60 degrees

Answer:

True

Step-by-step explanation:

In an equilateral triangle, all sides are equal in length.

That means that all the angles of the triangle will be congruent.

Since a triangle has 3 angles that always add up to 180 degrees, each angle is 60 degrees.

(180/3=60)

A right triangle must have one 90 degree angle.

An obtuse triangle must have an angle that is greater than 90 degrees.

An acute triangle's angles must all measure 89 degrees or less.

Hence, the given statement is true.

Equilateral triangles can be classified as acute.

Answer:

I think n is -25 but im not sure

Step-by-step explanation:

Let roses be R and carnations be C

"in a ratio of 2 to 7" means that the ratio of R to C is 2 to 7, meaning you'll have to cross multiply to translate it algebraically

[tex]R:C\\2:7\\7R=2C\\[/tex]

since C = 343 we plug 343 in [tex]7R=2C[/tex]:

[tex]7R=2(343)\\7R=686\\R=\frac{686}{7} \\R=98[/tex]

ergo, she needs 98 roses

to make sure of the answer:

"ratio of 2 to 7" is technically a fraction =>  [tex]\frac{2}{7}[/tex]

and since the ratio of the roses to the carnations is the same as [tex]\frac{2}{7}[/tex] we plug the values R = 98 and C=343:

[tex]\frac{R}{C}=\frac{98}{343}=\frac{2}{7}[/tex]

check with calculator too, hope i helped <33

Answer:

∠G ≅ ∠Q

Step-by-step explanation:

Given

Answer choices:

So, incorrect choice is the third one

We are given the equation:

√10(128 + 2)

We can simplify what is in parenthesis.

√10(130)

We can put the number in parenthesis on the left side of the square root.

130√10

As a decimal, it would equal approximately 411.10

Best of Luck!

Answer:

4/9

Step-by-step explanation:

To simplify this fraction, we can find the factors for each number and then take an equal amount out (divide).

Two factors that make up 36 are 4 and 9. Two factors that make up 81 are 9 and 9. Therefore, because 9 is a common factor between the two, we can divide both terms by 9 and simplify the fraction.

36/9 = 4

81/9 = 9

The new fraction is 4/9.

Answer:

The answers are in the picture I got it correct as you can see.

Answer:

A. b = [tex]\frac{2V}{ah}[/tex]

Step-by-step explanation:

[tex]V=\frac{1}{2} abh\\V= \frac{abh}{2} \\\\2V = abh\\\\\frac{2V}{ah} = \frac{abh}{ah}\\\\\frac{2V}{ah} = b[/tex]

Answer:

Hey there!

7 to the power of two is 7 times 7 which is 49.

Hope this helps :)

Answer:

49

Step-by-step explanation:

7² = 7 * 7 = 49

Exponents are simply repeated multiplication so 7 to the power of 2 would be 7 multiplied 2 times or 7 * 7.

Answer:

-8

Step-by-step explanation:

Lets plug in all the numbers.

(-2+3)-8

Lets break it down by opening the parenthesis

-2+3= 1

1x-8= -8

Hope this helps!

Answer: -8

Step-by-step explanation:

(c+d)b, if b=-8, c=-2, d=3

---------------

 (c+d)b

=[(-2)+(3)](-8) ⇔ substitute c, d, and b

=[-2+3]-8 ⇔ take off parentheses

=1 × -8 ⇔ simplify

=-8

Hope this helps!! :)

Please let me know if you have any question

Answer:

Pizza is the most enjoyed food with 83.3%

Step-by-step explanation:

Given

Cheeseburgers = 17 out of 22 students

Pizza = 5/6

Salad Bar = 80.5%

Required

Which of the food is most enjoyed

First, we have to convert all goven parameters to percentage

[tex]Cheeseburgers = \frac{17}{22}[/tex]

[tex]Cheeseburgers = 77.3\%[/tex]

[tex]Pizza = \frac{5}{6}[/tex]

[tex]Pizza = 83.3\%[/tex]

Comparing the percentages;

Pizza is the most enjoyed food with 83.3%

Answer:

n = cdm/ab

Step-by-step explanation:

Solving for n:

Answer:

5 : 2

Step-by-step explanation:

Given that:

Number of gumdrops = 420

Number of chocolate bars = 280

Total Number of candies = 700

To find:

The ratio of candies to chocolate bars = ?

Solution:

First of all, let us discuss the method to find the ratio of any two quantities.

Suppose, we need to find the ratio of two numbers [tex]p[/tex] and [tex]q[/tex].

Then to find the ratio [tex]p:q[/tex] , we need to divide p by q and represent it in the simplest form [tex]\frac{a}{b}[/tex] such that a and b can not be divided further.

Here, to find the ratio of candies to chocolate bar:

[tex]Ratio = \dfrac{\text{Number of candies}}{\text{Number of chocolate bars}}\\\Rightarrow \dfrac{700}{280}[/tex]

Here, we can simplify the fraction by dividing the numerator and denominator by 10 first:

[tex]\dfrac{70}{28}[/tex]

Now, let us divide the numerator and denominator by 14:

[tex]\dfrac{5}{2}[/tex]

So, the ratio is 5 : 2

Answer:

4.5

Step-by-step explanation:

triangular prism volume = [tex]\frac{1}{4}[/tex]h[tex]\sqrt{-a^{2}+2(ab)^{2} +2(ac)^{2}﹣b^{4}+2(bc)^{2}﹣c^{4} }[/tex]

a = base side = 1.4 ft (after converted from inches to feet)

b = base side= 2 ft

c = base side = 2.5 ft

h = height = 3 ft

plug all the number into the formula

Answer:

see explanation

Step-by-step explanation:

Using proportion to find the teachers required x, then

[tex]\frac{221}{272}[/tex] = [tex]\frac{13}{x}[/tex] ( cross- multiply )

221x = 3536 ( divide both sides by 221 )

x = 16

The number of teachers required this year is 16

Answer:

For other people it is ON EDGE 2020

Step-by-step explanation:

C i reapeat it is C

Answer:

d between p and q

Step-by-step explanation:

the square root of 7 is 2.6457

Answer:

This might help u........

Answer:Option B

(B)  9 = 1.5(x – y)

     9 = 0.5(x + y)

Step-by-step explanation:

Answer:

w = -12

Step-by-step explanation:

10 – 11w + 12w = -2

Combine like terms

10 +w = -2

Subtract 10 from each side

10+w-10 = -2-10

w = -12

Answer:

w = -12

Step-by-step explanation:

10 – 11w + 12w = -2

10 + w = -2

subtract 10 on both sides

w = -12

Answer:

  x = 2(z -y)

Step-by-step explanation:

Multiply by the inverse of the coefficient of x.

  x = 4y(z -y)/2y

  x = 2(z -y) . . . . . . . . y ≠ 0

_____

The equation is meaningless if y = 0.

Answer:

15/8

Step-by-step explanation:

one big rectangle is 1 or 8/8 and the other is 7 out of 8, therefore we have 8/8+7/8 = 15/8.

You are required to find the fraction of the rectangle shaded gold in the two rectangles

The fraction that was shaded in the two triangles is 15/8

Each of the rectangles are divided into 8 equal parts

The first rectangle has 8 equal sections

The second rectangle also has 8 equal sections

out of the 8 equal sections in the first rectangle, 8 was shaded gold

Then, we have 8/8 shaded = 1 whole

out of the 8 equal sections in the second rectangle, 7 was shaded gold

Then, we have 7/8 shaded

Improper fraction is a fraction in which the numerator (top number) is greater than or equal to the denominator (down number)

Therefore, rectangle 1 + rectangle 2

= 8/8 + 7/8

= (8+7) / 8

= 15/8

https://brainly.com/question/17261936

Answer:

2*3*3*3

Step-by-step explanation:

Answer:

54 = 2×3^3

Step-by-step explanation:

Factor the following integer:

54

Hint: | Is 54 divisible by 2?

The last digit of 54 is 4, which means it is even. Therefore 54 is divisible by 2:

54 = 2 27:

54 = 2×27

Hint: | Now try to factor 27. Is 27 divisible by 2?

27 is not divisible by 2 since 27 is odd and 2 is even:

54 = 2×27 (27 is not divisible by 2)

Hint: | Is 27 divisible by 3?

The sum of the digits of 27 is 2 + 7 = 9, which is divisible by 3. This means 27 is divisible by 3:

27 = 3 9:

54 = 2×3×9 (9 is not divisible by 2 since 27 is not)

Hint: | Now try to factor 9. Is 9 divisible by 3?

9 = 3 3, which means 9 is divisible by 3:

9 = 3 3:

54 = 2×3×3×3 (3 is not divisible by 2 since 9 is not)

Hint: | Now try to factor 3. Is 3 prime?

No primes less than 3 divide into it. Therefore 3 is prime:

54 = 2×3×3×3

Hint: | Express 54 as a product of prime powers.

There is 1 copy of 2 and 3 copies of 3 in the product:

Answer: 54 = 2×3^3