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Yuki888 [10]
3 years ago
12

Help me please!!!! If you do this correct, I will mark you the brainliest and this question is worth 50 points so please help me

!!!

Mathematics
2 answers:
tia_tia [17]3 years ago
7 0

y = x^2 - 7x - 5

y = -2x + 19

Subtract:

y-y = x^2 - 7x - 5 - (-2x + 19)

Simplify:

o = x^2 - 5x - 24

Solve the polynomial by finding two numbers when added together equal -5 and when multiplied by each other equal -24

x = -3 and x = 8

Now replace x in the first equation with -3 and solve for y, then replace x with 8 and solve:

y = x^2 -7x -5: y = -3^2 - 7(-3) - 5 = 9 + 21 - 5 = 25

y = 8^2 - 7(8) -5 = 3

The answers are (8,3) and (-3,25)

Sindrei [870]3 years ago
4 0

Answer:

B and C .. thhx

Step-by-step explanation:

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3 years ago
Round inglés
Andrew [12]

Answer:

13. 200

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13. It is more than 4

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5 0
3 years ago
Help solve<br> 1/2(X-34)=28+5X
IrinaK [193]

Answer:

x= -10 and true

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
HELP ME PLEASE I NEED THIS LOVE U GUYS &lt;33
Sedaia [141]

Answer:

\huge\boxed{\sf Volume = 384 \ cm^3}

Step-by-step explanation:

Slant Height = 10 cm

Base Edge = 12 cm

<u>Finding the Height using Pythagorean Theorem:</u>

\sf c^2 = a^2 + b^2 \\\\Where \ c = 10\ cm , b = 6\ cm [Half of 12] \ and \ a \ is \ height\\\\10^2 = a^2 + 6^2\\\\100=a^2 +36\\\\100-36 = a^2\\\\64 = a^2\\\\Taking \ sqrt \ on \ both \ sides\\\\Height= 8 \ cm

\rule[225]{225}{2}

<u>Now, Finding the volume:</u>

\sf Volume = a^2 \frac{h}{3}\\\\ Where \ a \ is base \ edge \ and \ h \ is \ height\\\\Volume = (12)^2 \frac{8}{3} \\\\Volume = 144 \frac{8}{3} \\\\Volume = 48*8\\\\\bold{Volume = 384 \ c m^3}

\rule[225]{225}{2}

Hope this helped!

<h2>~AnonymousHelper1807</h2>
8 0
3 years ago
A new outdoor recreation center is being built in Hadleyville. The perimeter of the rectangular playing field is 316 yards. The
algol13

Given :

Perimeter of rectangular filed , P = 316 yards.

The length of the field is 4 yards less than twice its width.

To Find :

The dimensions of the playing field.

Solution :

Let, width be x.

So, by given condition length will be 2x - 4.

Perimeter is given by :

P = 2( l + b )

316 = 2( 2x - 4 + x )

3x - 4 = 158

x = 54 yards.

So, the dimensions are 54 yards and 104.

Hence, this is the required solution.

8 0
3 years ago
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