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Andreyy89
3 years ago
14

Can someone please help im lost

Mathematics
2 answers:
qaws [65]3 years ago
8 0

Step-by-step explanation:

putting the value f(-9) in expression

= -(-9)^2-7×(-9)-2

= 81+63-2

=142

spin [16.1K]3 years ago
5 0

Answer:

-146

Step-by-step explanation:

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Hi its 1 am i have to many missing assignments anwser this for me lol thx!!<3
qaws [65]

Answer:

20

Step-by-step explanation:

(-4) × (-5) = 20

Hope this helps

5 0
3 years ago
Read 2 more answers
P and Q are two points on the line x-y+1=0 and are at distance 5 from the origin. Find the coordinates of P and Q.
Rashid [163]

Answer:

P and Q are two points on the line x-y+1=0 and are at the distance 5 units from origin. Find the area of the triangle OPQ. P and Q are two points on the line x-y+1=0 and are at the distance 5 units from origin. ... The area of PQR is 7*7/2 = 49/2 sq units.

4 0
3 years ago
using 3.14 for pi what is the volume to the nearest tenth of a cone that has a height of 17 meters and a base with a radius of 6
Veronika [31]
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6 0
3 years ago
I will give brainliest to simplest explanation! There are 2 Senators from each of 50 states. We wish to make a 3-Senator committ
Alika [10]

Answer:

117,600 ways

Step-by-step explanation:

This problem can be solved using fundamental principle of counting , according to which , if there are m different things and n different things,

then there m*n ways to combine.

Example: if there 5 shirts and 3 ties,

then number of ways in which different combination shirt and tie can be worn is

5*3 = 15 ways.

____________________________________

In the problem,\

number of states is 50,

let those states be

A1, A2, A3, A4 ......A50

in each state there are 2 senate

Condition

3-Senator committee in which no two members are from the same state.

then

first member can be chosen from any of the 50 state,

hence first member can be chosen in 50 ways

for simplicity lets take state A1, you can choose any one you wish

second member cannot be from state A1, then number of state left = 49

second member can be chosen from  any of 49 state left

hence second member can be chosen in 49 ways

for simplicity lets take state A2,

Third member cannot be from state A1 and A2, then number of state left = 48

Third member can be chosen from  any of 48 state left

hence Third member can be chosen in 48 ways

for simplicity lets take state A3,

Hence no. of ways of choosing  3-Senator committee be formed such that no two Senators are from the same state = 50*49*48 = 117,600 ways

8 0
4 years ago
1. A school gym has a width of 270 ft. Which of the following is equivalent to 270 ft?
yan [13]

Answer:

It should be 90

Step-by-step explanation:

Because 270 divided by 3 is 90

6 0
3 years ago
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