A cone has a base radius of 7 centimeters and a height of 21 centimeters.

What is the y-intercept of the function f(x) = -x + ? 이름 를 0 3

ad-work [718]

Answer:

C. ⅓

Step-by-step explanation:

A function in slope-intercept form is written as $f(x) = mx + b$

Here, b represents the y-intercept.

So given the function, $f(x) = -\frac{2}{9}x + \frac{1}{3}$ , the y-intercept (b) would obviously be ⅓.

y-intercept = ⅓

7 0

3 years ago

Solve the following equation -3=z+4

makkiz [27]

Answer:

z = -7

x = 1.6

There is no equation in what you typed on the third lie so it cannot be solved (equal sign is missing)

x = - 132/7

Step-by-step explanation:

For all cases the goal is to isolate the unknown (represented by a letter) on one side of the equal sign by using mathematical operations simultaneously on both sides.

In the first equation, to isolate z we need to subtract 4 from both sides:

$-3=z+4\\-3-4=z+4-4\\-3-4=z\\z=-7$

In the second equation: in order to isolate x we need to get rid of the factor 4 that is multiplying x, therefore we use the division by 4 on both sides:

$6.4=4x\\\frac{6.4}{4}=\frac{4x}{4} \\1.6=x$

The third expression you wrote doesn't contain an equal sign and therefore it s not an equation (cannot be solved)

In the last equation, in order to isolate x we need to divide both sides by 7 and also to multiply both sides by 33:

$-4=\frac{7}{33} x\\\frac{-4*33}{7} =\frac{7*33}{33*7} x\\\frac{-132}{7} = x\\x=-\frac{132}{7}$

8 0

3 years ago

What is the correct answer to 20÷2(5+5)?

poizon [28]

Answer:

To answer the question above, we need to know about the rules of mixed count operation. In mixed count operation, we can find plus [+], minus [-], divided [:], multiplication [x] and parenthesis [(...)]. For example, if the operation is: 7 x 5 + 3 - (4 x 3) : 6 = ...

first, we must finish the operation inside the parenthesis symbol, which is (4 x 3), the result is 12

second, we must finish the operation with the multiplication or divided symbol but, if both exist we must finish the far left-side first. for this example is to finish "7 x 5 = 35" first, then finish the next operation with divided symbol "(4 x 3) : 6 = 12 : 6 = 2"

for the last, we finish the operation with plus or minus symbol, but if both exist then we must finish the far left-side first. For this example is to finish "35 + 3 = 38", then finish the next operation which is "38 - 2 = 36".

there are the rules of mixed count operations, to make it clear we finish the example operation step by step

7 x 5 + 3 - (4 x 3) : 6 = ...

7 x 5 + 3 - 12 : 6 = ...

35 + 3 - 12 : 6 = ....

35 + 3 - 2 = ...

38 - 2 = 36.

now the answer to the mixed count operation above 20 : 2 (5 + 5) = ...

20 : 2 x (5 + 5) = ...

20 : 2 x 10 = ...

10 x 10 = 100

the answer of the operation is 100

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Answer Details

Subject: Mathematics

Chapter: Mixed Count Operation

Grade: High School

Keyword: What is the correct answer of 2 2?, How do you explain a math problem?, Do you use Bodmas if there are no Brackets?

7 0

4 years ago

Read 2 more answers

PLS HELP GIVING 11 POINTS

Svetradugi [14.3K]

Answer:

3. 40 4. 132

Step-by-step explanation:

you multiply the length and the width

8 0

2 years ago

Read 2 more answers

Help please Algebra 2 B

NNADVOKAT [17]

$- 2(3) + 5 \\ - 6 + 5 = - 1 \\ \\ - 2(4) + 5 \\ - 8 + 5 = - 3 \\ \\ - 2(5) + 5 \\ - 10 + 5 = - 5 \\ \\ - 2(6) + 5 \\ - 12 + 5 = - 7 \\ \\ - 1 + ( - 3) + ( - 5) + ( - 7) \\ = - 16$

7 0

4 years ago