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3 years ago

Help ASAP please ...

Mathematics

2 answers:

cupoosta [38]3 years ago

8 0

Answer:

Angle Q

Step-by-step explanation:

As I said on my previous posts, all you need to remember is CPCTC (corresponding parts of congruent triangles are congruent)

Q corresponds to B, and is thus congruent

Anettt [7]3 years ago

7 0

For questions like this it is best to draw a diagram. Below I have drawn two triangles. One labeled ABC and the other PQR. As you can see the order that the letters are labeled are the same order as what they are here:

ABC and PQR

B and Q are in the same spot in the order

ABC and PQR

This means that angle B corresponds with angle Q

Hope this made sense! Let me know if you understand.

~Just a girl in love with Shawn Mendes

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3(8 – 4x) < 6(x – 5)

evablogger [386]

Answer:

$3\left(8-4x\right)$

$3(8-4x)=241-2x$

$6(x-5)=6x-30$

$24-12x$

Subtract 24 from both sides

$-12x$

Now, subtract 6x from both sides

$-18x$

Multiply both sides by -1

$18x>54$

Divide 18 from both sides

$x>3$

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3 years ago

The volume V of a right‑circular cylinder is computed using the values d = 3.1 m for the diameter and h = 6.6 m for the height.

pantera1 [17]

Answer:

Step-by-step explanation:

A function f(x) can by approximated at and around a point, say x = a by,

f(x) = f(a) + f'(a)(x-a)

where, $f'(x)=\frac{df}{dx}$

Here, volume V is a function of radius r and height h. In the 2 dimensional case, we have to take the partial derivatives.

Given,

$V=\pi r^2h$

or, $dV=\frac{\partial V }{\partial r}dr+ \frac{\partial V }{\partial h}dh$

at r = 1.55 m and h = 6.6 m

$dr=0.02\times1.55m=0.031m$

$dh=0.02\times6.6m=0.132m$

$\frac{\partial V }{\partial r}=2\pi r h=2\pi \times 1.55\times 6.6=64.277$

$\frac{\partial V }{\partial h}=\pi r^2=7.5477$

Therefore, $dV=(64.277\times.031)+(7.5477\times0.132)=2.9889m$

Also, $V=\pi r^2h=49.8147m$

Hence, maximum error is given by,

$R=\frac{2.9889}{49.8147} \times 100$

= 6%

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4 years ago

Is C correct? and what goes in the box?

Lorico [155]

Answer: d

(-5,3)(5,7)

Slope = change in y /change in x

M= 7-3/5-(-5)

M= 4/ 10

M=4÷2/5÷2

M=2/5

Your slope is 2/5 in fraction form or 0.4 in decimal form

7 0

3 years ago

PLEASE IM BEGGING YOU HELP ME! ITS DUE SOON PLEASE ACTUALLY SHOW YOUR WORK :(( SOMEONE PLEASE OMG HELP NO ONES HELPING ME UGHHHH

anyanavicka [17]

Answer:

x=0, y=-12

Step-by-step explanation:

you can use substitution to solve for x

-3(x-12)=2x+36

-3x+36=2x+36

subtract 36 from both sides and add 3x to both sides

0=5x

x=0

now plug in 0 as x for either equation

y=0-12

y=-12

to check your work plug in x and y into the other equation

-3(-12)=2(0)+36

36=36

3 0

3 years ago

I need help with math homework

kobusy [5.1K]

Answer:

A. (0, 1) and (2, -2)

B. Slope (m) = -³/2

C. y + 2 = -³/2(x - 2)

D. $y = -\frac{3}{2}x + 1$

E. $\frac{3}{2}x + y = 1$

Step-by-step explanation:

A. Two points on the line from the graph are: (0, 1) and (2, -2)

B. The slope can be calculated using two points, (0, 1) and (2, -2):

$slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-2 - 1}{2 - 0} = \frac{-3}{2} = -\frac{3}{2}$

Slope (m) = -³/2

C. Equation in point-slope form is represented as y - b = m(x - a). Where,

(a, b) = any point on the graph.

m = slope.

Substitute (a, b) = (2, -2), and m = -³/2 into the point-slope equation, y - b = m(x - a).

Thus:

y - (-2) = -³/2(x - 2)

y + 2 = -³/2(x - 2)

D. Equation in slope-intercept form, can be written as y = mx + b.

Thus, using the equation in (C), rewrite to get the equation in slope-intercept form.

y + 2 = -³/2(x - 2)

2(y + 2) = -3(x - 2)

2y + 4 = -3x + 6

2y = -3x + 6 - 4

2y = -3x + 2

y = -3x/2 + 2/2

$y = -\frac{3}{2}x + 1$

E. Convert the equation in (D) to standard form:

$y = -\frac{3}{2}x + 1$

$\frac{3}{2}x + y = 1$

8 0

3 years ago