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algol13
4 years ago
14

Write an expression to represent the sum of three times the square of a number and -7.

Mathematics
1 answer:
xz_007 [3.2K]4 years ago
4 0

Answer:

3x^2-7

-7 is the constant

3 is the coefficient

x is the variable

Step-by-step explanation:

(3x^2)+(-7)

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Mr. and mrs.storey drive 3200 miles in all during their vacation. mr.storey drove 3 times as many miles as mrs.storey how many m
vaieri [72.5K]
This can be solve by establishing equations.
let x be the miles mrs. storey drove
y be the miles mr storey drovee
 
the first equation is
y = 3x

second equation
x + y = 3200
then substitute equation 1

x + 3x = 3200
4x = 3200
x = 800 miles mrs storey drove
y = 3x = 2400 miles mr storey drove
5 0
4 years ago
21 and 22 are complementary angles.
Bumek [7]

The measure of angle 2 is \angle 2=14^{\circ}

Explanation:

Given that \angle 1 and \angle 2 are complementary angles.

Also, the measure of angle 1 is \angle 1= 76^{\circ

We need to determine the measure of \angle 2

Since, we know that the complementary angles add up to 90°, then the angles \angle 1 and \angle 2 add up to 90°.

Thus, we have,

\angle 1+\angle 2=90^{\circ}

Substituting the value of \angle 1 in the above expression, we have,

76^{\circ}+\angle 2= 90^{\circ}

Subtracting both sides by 76°, we get,

\angle 2 = 90^{\circ}-76^{\circ}

Simplifying, we have,

\angle 2 = 14^{\circ}

Thus, the measure of angle 2 is \angle 2=14^{\circ}

8 0
3 years ago
If you run 10 yds north and 16 yds east what is the shortest rout from your starting to ending rout
Pavlova-9 [17]
Check the picture below.

5 0
3 years ago
What is a research proposal ​
matrenka [14]

<u>Definition of research proposal:</u>

A research proposal is a document in which a research project is proposed, usually from a scientific or academic community, and usually asks for funding for this research. Proposals will be assessed in the light of the costs and potential impacts on the proposed study and the feasibility of the proposed implementation plan.

The main usage of the research proposal is to satisfy the reader about the value of the project and specialist knowledge. One must demonstrate that he/she has a work plan and that his/her project will succeed. It involves various types: pre-proposals, unsolicited (submitting without any prior request) and solicited (submitting proposals in response to the request).

7 0
3 years ago
suppose your school cost for this term where is $7780 and financial aid cover 3/4 of the amount how much did financial aid cover
Fynjy0 [20]

Answer:

5835

Step-by-step explanation: =(3/4)*7780

=5835

6 0
3 years ago
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