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2 years ago

Can someone help please:)

Mathematics

2 answers:

tankabanditka [31]2 years ago

6 0

#4. 10.6x13.5x0.5=71.55
#5. 4x7.2x0.5=14.40
#6. 5.2x6x0.5=15.60

Volgvan2 years ago

3 0

Intro.

Before we solve the areas of the triangles, let's review the key points.

Key points:

Area of triangle: 1/2 x Base x Altitude

Solution (4):

1/2 x 13.5 x 10.6
=> 1 x 13.5 x 5.3
=> 71.55 cm²

Solution (5):

1/2 x 7.2 x 4
=> 1 x 7.2 x 2
=> 14.4 yd²

Solution (6):

1/2 x 6 x 5.2
=> 1 x 3 x 5.2
=> 15.6 ft²

Hoped this helped!

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3 lines are shown. A line with points C, A, F intersects a line with points E, A, B at point A. A line extends from point A to p

Verizon [17]

Answer:

m < EAD = 29 degrees

m < CAB = 119 degrees

Given :

The question states that m < CAE = m<FAB = 61 degrees and m<DAF = 90 degrees

Solution:

1. Since line CAF and EAB intersect each other, m<CAF = m< EAF - (opposite vertical angles are equivalent)

2. m<BAC + m<EAC = 180 degrees (sum of linear pair)

3. m<CAB = 180 degrees - m<EAC

4. Equation 1: m<CAB = m<EAF = 119 degrees

5. m<EAF = m<EAD + m< DAF

6. m<EAD = m<EAF - m<DAF

7. m<EAD = 119 degrees-90 degrees = 29 degrees

Hope this helps!!! :)

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5 0

3 years ago

What a impor fraction

MrMuchimi

Im guessing you meant improper. This means that the numerator is greater than the denominator. An example is 11/4

4 0

3 years ago

Read 2 more answers

Check the true statements below:

valentinak56 [21]

Answer:

a) False

b) False

c) True

d) False

e) False

Step-by-step explanation:

a. A single vector by itself is linearly dependent. False

If v = 0 then the only scalar c such that cv = 0 is c = 0. Hence, 1vl is linearly independent. A set consisting of a single vector v is linearly dependent if and only if v = 0. Therefore, only a single zero vector is linearly dependent, while any set consisting of a single nonzero vector is linearly independent.

b. If H= Span{b1,....bp}, then {b1,...bp} is a basis for H. False

A sets forms a basis for vector space, only if it is linearly independent and spans the space. The fact that it is a spanning set alone is not sufficient enough to form a basis.

c. The columns of an invertible n × n matrix form a basis for Rⁿ. True

If a matrix is invertible, then its columns are linearly independent and every row has a pivot element. The columns, can therefore, form a basis for Rⁿ.

d. In some cases, the linear dependence relations among the columns of a matrix can be affected by certain elementary row operations on the matrix. False

Row operations can not affect linear dependence among the columns of a matrix.

e. A basis is a spanning set that is as large as possible. False

A basis is not a large spanning set. A basis is the smallest spanning set.

3 0

3 years ago

3. A quadratic polynomial whose product and the sum of zéroes are -12 and 1

muminat

Answer:

the equation is : x²-x-12

Step-by-step explanation:

the quadratic equation is in the form of : y=ax²+bx+c

the product of the zeros is -12 and the sum is 1

b = - 1

c=-12 (product)

y=x²-x-12

check : factorize first (x+3)(x-4)=0

either x+3=0 then x=-3

or x-4=0 then x=4

-3*4=-12

-3+4=1

the equation is : x²-x-12

3 0

3 years ago

Explain in your own words what the mean of a negative exponent means?

BlackZzzverrR [31]

A negative exponent is the opposite of a regular exponent so for example, 5 to the power of -3 is 1/125

7 0

3 years ago