1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LekaFEV [45]
2 years ago
14

Help mmmmmmmmmmemmmemeeeee

Mathematics
2 answers:
snow_lady [41]2 years ago
8 0

Answer:

49 is your answer

Step-by-step explanation:

let's do b-pemdas

brackets

parentheses

e(I forgot the name for it but it's basically a small number next to the big number)

Multiply

Divide

Add

Subtract

you do the equation in that order

so

2+8•7-(3^2)

we focus on (3^2)

that's 3•3 which equals to 9

so now the equation is

2+8•7-9

Now we focus on 8•7 which equals to 56

the equation now looks like

2+56-9

you then add 56 to 2 which equals to 58 and then subtract 9 from it so it should look like this

2+56=58

58-9= 49

and 49 is your answer

hope this help!!!

if you would give me brainliest that would help a lot!!

zepelin [54]2 years ago
3 0

Answer:

P-E-M-D-A-S

Step-by-step explanation:

Ok, so start with what i call "P-E-M-D-A-S"

P: parentheses | Also known as these: ( )

E: exponents | Its a small number by another number, like the 3 on your screen

M: Multiply | Also Known as   x or a dot

D: Divide | i forgot how to make it

A: Add | also known as +

S: Subtract | also known as -

now go in order to solve it, it makes it much more easy!

You might be interested in
Four lawn sprinkler heads are fed by a 1.9-cm-diameter pipe. The water comes out of the heads at an angle of 35° above the horiz
klemol [59]

Answer:

Step-by-step explanation:

Given:

Angle, θ = 35°

Vertical distance, Δx = 6 m

Diameter, d = 1.9 cm

= 0.019 m

A.

When the water leaves the sprinkler, it does so at a projectile motion.

Therefore,

Using equation of motion,

(t × Vox) = 2Vo²(sin θ × cos θ)/g

= Δx = 2Vo²(sin 35 × cos 35)/g

Vo² = (6 × 9.8)/(2 × sin 35 × cos 35)

= 62.57

Vo = 7.91 m/s

B.

Area of sprinkler, As = πD²/4

Diameter, D = 3 × 10^-3 m

As = π × (3 × 10^-3)²/4

= 7.069 × 10^-6 m²

V_ = volume rate of the sprinkler

= area, As × velocity, Vo

= (7.069 × 10^-6) × 7.91

= 5.59 × 10^-5 m³/s

Remember,

1 m³ = 1000 liters

= 5.59 × 10^-5 m³/s × 1000 liters/1 m³

= 5.59 × 10^-2 liters/s

= 0.0559 liters/s.

For the 4 sprinklers,

The rate at which volume is flowing in the 4 sprinklers = 4 × 0.0559

= 0.224 liters/s

C.

Area of 1.9 cm pipe, Ap = πD²/4

= π × (0.019)²/4

= 2.84 × 10^-4 m²

Volumetric flowrate of the four sprinklers = 4 × 5.59 × 10^-5 m³/s

= 2.24 × 10^-4 m³/s

Velocity of the water, Vw = volumetric flowrate/area

= 2.24 × 10^-4/2.84 × 10^-4

= 0.787 m/s

7 0
3 years ago
Read 2 more answers
Write an equation in point-slope form and in slope-intercept form for the line that passes through the given point
nexus9112 [7]

Answer:

point-slope:x-y+3

slope-intercept: y=x-3

4 0
3 years ago
Which polynomial represents the sum below?
adell [148]

Answer:

answer A

Step-by-step explanation:

hello,

4x^2 + 1 + 4x^2+x+2=(4+4)x^2+x+1+2=8x^2+x+3

hope this helps

8 0
3 years ago
Read 2 more answers
1. Choose the correct simplification of the expression −5x2(4x − 6x2 − 3).
nlexa [21]
1) <span>30x4 − 20x3 + 15x2

This is the answer to 1. Don't forget to rearrange the terms in ascending order. That can trip people up. 

2) </span><span>x3 + 8x2 + 13

Don't forget to check the terms sign. The subtraction symbol switches them all. </span>
6 0
3 years ago
Plz help me ASAP on this!
nadezda [96]

Answer:

E

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • If f(x) = x 2 - 3, find f(6).
    15·1 answer
  • On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally dist
    14·1 answer
  • Morgan's favorite spaghetti sauce is available in two sizes:pints and quarts. pint 16 (oz) price 3.89 quart 32 5.98 what is the
    9·1 answer
  • Help...please?? Thanks guys
    15·2 answers
  • Can someone answer this question plz
    6·1 answer
  • Use the discriminant to determine the number and type of solutions the equation has. x2 + 8x + 10 = 0 A. no real solutions B. on
    12·2 answers
  • Mang narvin sells pots.if he earns php450.50 per day. how much will he earn in a month?
    12·1 answer
  • Draven's computer downloads files at a rate of 220 kilobytes per second. The computer has already downloaded the first 550 kilob
    5·1 answer
  • Let x= -1, y= -2 and z = 3 evaluate the following expression x/5y - 2z
    14·2 answers
  • Find the mean of the data set below:<br> 13, 6, 47,0
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!