Answer:
The answer is B. There are 432 desks in all 18 classes
Can someone plz help me with this one problem
the greatest solution of x in the equation x^2+8x−30=18
Answer:
The two possible outcomes are 4 and -12, so 4
Step-by-step explanation:
The greatest value of x is 4.
What is factorization?
Factorization is when you break a number down into smaller numbers that, multiplied together, give you that original number. When you split a number into its factors or divisors, that's factorization.
Given equation
⇒ [tex]x^{2} +8x-30 = 18[/tex]
⇒ [tex]x^{2} +8x-30-18=0[/tex]
⇒ [tex]x^{2} +8x-48=0[/tex]
⇒ [tex]x^{2} +12x-4x-48=0[/tex]
⇒ [tex]x(x+12)-4(x+12)=0[/tex]
⇒ [tex](x+12)(x-4)=0[/tex]
x = -12 and x = 4
Hence, the greatest value of x is 4.
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A section of a deck is shaped like a trapezoid. For this section, the length of one base is 37 feet, and the length of the other base is 46 feet. The height is 20 feet. What is the area of this section of the deck?
Answer:
[tex]A=830\ ft^2[/tex]
Step-by-step explanation:
Given that,
The length of one base is 37 feet, and the length of the other base is 46 feet. The height is 20 feet.
We need to find the area of this section of the deck that is shaped like a trapezoid.
The area of a trapezium is given by :
[tex]A=\dfrac{a+b}{2}\times h[/tex]
a = 37 ft, b = 46 ft and h = 20 ft
Put all the values,
[tex]A=\dfrac{37+46}{2}\times 20\\\\A=830\ ft^2[/tex]
So, the area of this section of the deck is equal to [tex]830\ ft^2[/tex].
Team D's car went the same distance on each of its trials. Team C's car went exactly 1 cm farther in each trial than Team D's car. Team C's car went 543 cm in all.
Answer:
180 cm
Step-by-step explanation:
Number of trials per team = 3
Distance per trial for team D's car is the same for each trial, let distance = x
Distance per trial for team C's car is 1cm farther than team D's distance and the same for each trial, hence, distance = x + 1 per trial
Total distance traveled by C = 543 cm
This means :
(x + 1) + (x + 1) + (x + 1) = 543
3x + 3 = 543
3x = 543 - 3
3x = 540
x = 540 / 3
x = 180
Hence, distance traveled per trial for team D's car = x = 180 cm
A card is drawn randomly from a deck of 52 cards.
Find the probability of getting red faced card.
The probability of drawing a red face card from a deck of cards is 3/26
Explanation:
In a deck of cards, there are 6 red-faced cards.
Probability = No. of favourable events / Total no. of events
So, the probability of drawing a red-faced card is 6 out of 52 cards.
Thus, the probability of drawing a red face card from a deck of cards is 6/52 = 3/26.
Answer:
i hope this helped ❤️❤️❤️❤️❤️❤️
What does x=_____ degrees
Answer:
x = 48 degrees
Step-by-step explanation:
This triangle is an isosceles which means that two of the angles are the same and all triangles add up to 180 degrees so we take the two angles we know and add them
66 + 66 = 132
Then we subtract that number from 180 to find the third angle
180 - 132 = 48
Answer:
x = 48°
Step-by-step explanation:
Since the legs of the triangle are congruent then the base angles are congruent, both 66° , then
x = 180° - (66 + 66)° = 180° - 132° = 48°
What is the measure of ZF? G 65° 10 10 1 O A. 65° B. 75° O c. Cannot be determined D. 55
Answer:
A
Step-by-step explanation:
The sides GH and FH are congruent, so Δ FGH is isosceles and the 2 base angles G and F are also congruent, then
∠ F = 65° → A
katrina divided her photos into three albums. each album contains 26 photos. how many photos did katrina have to begin with
d) Write 0.00147 in standard form.
1.47 times 10 to the power of -3
The measure of an angle is 40.5°. What is the measure of its supplementary angle
Answer:
Supplementary angles add to 180 degrees. So of the measure of the angle is x, the measure of its supplement is 2x. Angle = 60, supplement = 120
Step-by-step explanation:
Answer:
139.5º
Step-by-step explanation:
The sum of supplementary angles is 180º
s + 40.5 = 180
Subtract 40.5 from both sides
s = 139.5º
Who were the first people in africa?
Answer:
One of the earliest known humans is Homo-habilis, or “handy man,” who lived about 2.4 million to 1.4 million years ago in Eastern and Southern Africa.
Find the value of x.
Answer:
X= 130°
Step-by-step explanation:
360°= x°+107°+79°+44° (sum of angles in a quadrilateral)
360°= x°+230°
X= 360°-230°
X= 130°
solve for x 1.6 equals 12.8
Answer: x=14.4
Step-by-step explanation:
⚠️Pythagorean Theorem⚠️
‼️Urgent Help‼️
Need help with answering B
Answer:
Jim would have received 18 vouchers. One for each pizza he purchased
in total, he has received 20 vouchers
18 for the pizzas he has bought. and 2 for the 16 vouchers that redeemed 2 pizzas
x^2+10x-2=0
use picture as example
HELP PLEASEE
i got 58 for the answer is that correct???
Answer:
I cant see anything how am I supposed to help you?
Step-by-step explanation:
What is the best way for a consumer to prevent unexpected fees from a new credit card?
A. study the advertisement for the credit card
B. read the fine print of the credit card agreement
C. research laws that regulate credit card companies
D. ask the credit card company for referrals from other consumers
bro i keep getting it wrong so can you please tell me how to solve this not just the answer
Answer:
A
Step-by-step explanation:
since it is on sale for 27%, multiply $28 by 70% (0.7) to find the total amount of money the shirt costs now that it is on sale (since it's on sale for 30% off)
$28*0.7=$19.60
Answer:
$19.60
Step-by-step explanation:
First, find 30% of $28. :)
To do this, multiply 28 by 0.3. (30% is the same thing as 3/10 or 0.3)
28 x 0.3 = 8.4.
30% of 28 is 8.4.
Next, subtract $8.4 from $28. (Shirt on sale for 30% off)
28 - 8.4 = $19.60
Have a great day!
7x+7=3x+27
What is the value of x
is 9e+2(e+5) and 11e+5 equivalent?
No,
[tex]9e + 2(e + 5) = 11e + 10[/tex]
And 11e + 10 is not equivalent to 11e + 5
Answer:
No, its not.
9e + 2(e+5)
= 9e + 2e + 10
= 11e + 10
---> 9e+2(e+5) when simplified gives 11e + 10.
---> Therefore, its not equal to 11e + 5
Marco has a balance of -$19 in his checking account. He makes a trip to the bank to deposit $368. The next day he purchases a new video game for $47 using his debit card. What is Marco’s new balance after he purchases the video game?
i need this done asp
Answer:
His new balance would be $302
What is the range?
Ignore: this has to be 20 characters or more
Answer:
Step-by-step explanation:
The range is the difference between the highest and lowest values in a set of numbers. To find it, subtract the lowest number in the distribution from the highest.
kinda confused on what the sum would be?!? HELP NOWW PLEASE
can someone please help me with circle similarity?
Answer: were is your qustion at
plz make brainly
Step-by-step explanation:
On Monday, Richard worked for 4 hours and earned $36. On Tuesday, Richard worked for 6 hours and earned $54. On Wednesday, Richard worked for 5 hours and earned $45. what is the rate of his earnings? Represent his earnings in a y=mx function, where hours are represented by y, and m represents the rate of change. If richard worked for 7 hours, how much money would he earn? How many hours did richard work on friday, when he earned $81
Answer:
Earnings (E), Time (T) Rate (R) E = 9t
On Friday he worked 9 hours
Step-by-step explanation:
divide 36 by 4 to get 9 (Fo that for all the earnings to make sure you got the correct answer) Then just divide 81 by 9 to get 9 hours.
PLEASE HELP ME!! IM ABOUT TO FAIL MY MATH CLASS
Laura and Brent paddled a canoe 6 miles upstream in four hours. The return trip took 3 hours. What is the rate at which they paddled the canoe?
This is supposed to be a system of equations question, but all the answers I’m seeing are solving them differently. PLEASE HELP!!
Find the volume of a pyramid with a square base, where the area of the base is
16.3 ft2 and the height of the pyramid is 13.7 ft. Round vour answer to the nearest
tenth of a cubic foot.
The volume of the square base pyramid is 74.4 ft³
How to find volume of a pyramid?volume of a pyramid = 1 / 3 Bh
where
B = base areah = heightTherefore,
B = 16.3 ft
h = 13.7 ft
Hence,
volume of a pyramid = 1 / 3 × 16.3 × 13.7
volume of a pyramid = 223.31 / 3
volume of pyramid = 74.4366666667
volume of pyramid = 74.4 ft³
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Last year, Ted's salary was $42,000. He donated 1/25 of last year's salary to charity. How much did Ted earn last year after his donation?
Answer:
40,320$.
Step-by-step explanation:
In the diagram, parallel lines P and Q are cut by transversal R.
(2x + 40°
(3x - 85)°
What is the value of x?
Answer:
x=125
Step-by-step explanation:
Using the definition of supplementary angles, the value of x in the given diagram is: 45.
What are Supplementary Angles?Supplementary angles equals 180 degrees when added together.
(2x + 40)° and (3x - 85)° are supplementary angles. Therefore:
(2x + 40) + (3x - 85) = 180
Solve for x
2x + 40 + 3x - 85 = 180
Add like terms
5x - 45 = 180
5x = 180 + 45
5x = 225
x = 225/5
x = 45
The value of x is: 45.
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