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3 years ago

7

Please hurry, I'll give brainly

2 answers:

Jlenok [28]3 years ago

4 0

Answer:

area = 8.03

Step-by-step explanation:

$area= \frac{ab\sin\C}{2}$

mrs_skeptik [129]3 years ago

3 0

Step-by-step explanation:

there should 90 value

the value of triangle is 90

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serg [7]

Hey there!

$\bold{4x^2+23x+28=0}$
<em>Firstly, factor the left side of your equation </em>
$\bold{(4x+7)(x+4)=0}$
<em>Set each of your terms to the number of $\bold{0}$ </em>
$\bold{4x+7=0}$ $\bold{or}$ $\bold{x+4=0}$
$\boxed{\boxed{\bold{Answer:D.)x=\frac{-7}{4} [or]x=-4}}}$ $\bold{\checkmark}$

Good luck on your assignment and enjoy your day!

~ $\bold{LoveYourselfFirst:)}$

6 0

4 years ago

A paint store sells an orange paint that is made by combining 7 parts red with 4 parts

lara [203]

Answer:

10 parts red paint

Step-by-step explanation:

she doubled the amount of yellow paint in the can at home, so you will need to add twice the amount of red paint. 7×2=14, 14-4= 10.

3 0

3 years ago

Y=-4x-2 and intersects at the points (4,-1)

rosijanka [135]

Answer:

It doesn't intersect at that point

${ \bf{y = - 4x - 2}} \\ y = - (4 \times 4) - 2 \\ y = - 18$

4 0

3 years ago

Read 2 more answers

Lara draws some triangle models with the measurements she wants to use to construct them. Which of these triangle constructions

Nostrana [21]

Answer:

c

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A college is planning to construct a rectangular parking lot on land bordered on one side by a highway. The plan is to use 440 f

NARA [144]

Let x represent side opposite to highway and y represent other two opposite sides as shown in the diagram.

The perimeter of the parking lot will be sum of 3 sides that is $x+y+y=x+2y$ .

We have been given that the plan is to use 440 feet of fencing to fence off the other three sides. This means that perimeter of 3 sides is 440.

$x+2y=440$

$x=440-2y$

We know that area of rectangle is length times width, so area of parking lot will be $A=x\cdot y$

Upon substituting value of x, we will get:

$A(y)=(440-2y)\cdot y$

$A(y)=440y-2y^2$

Now we will find the derivative of area function as:

$A'(y)=\frac{d}{dy}(440y)-\frac{d}{dy}(2y^2)$

$A'(y)=440-4y$

Let us find critical point by equating derivative to 0.

$440-4y=0$

$440=4y$

$\frac{440}{4}=\frac{4y}{4}$

$110=y$

Now we will substitute this value is equation $x=440-2y$ to solve for x as:

$x=440-2(110)$

$x=440-220=220$

Therefore, the dimensions of 220 feet by 110 feet will enclose the maximum area.

3 0

3 years ago